Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (40 commits)
  Input: wacom - add support for Cintiq 20WSX
  Input: ucb1400_ts - IRQ probe fix
  Input: at32psif - update MODULE_AUTHOR with new email
  Input: mac_hid - add lockdep annotation to emumousebtn
  Input: i8042 - fix incorrect usage of strncpy and strncat
  Input: bf54x-keys - add infrastructure for keypad wakeups
  Input: add MODULE_ALIAS() to hotpluggable platform modules
  Input: drivers/char/keyboard.c - use time_after
  Input: fix ordering in joystick Makefile
  Input: wm97xx-core - support use as a wakeup source
  Input: wm97xx-core - use IRQF_SAMPLE_RANDOM
  Input: wm97xx-core - only schedule interrupt handler if not already scheduled
  Input: add Zhen Hua driver
  Input: aiptek - add support for Genius G-PEN 560 tablet
  Input: wacom - implement suspend and autosuspend
  Input: xpad - set proper buffer length for outgoing requests
  Input: omap-keypad - fix build warning
  Input: gpio_keys - irq handling cleanup
  Input: add PS/2 serio driver for AVR32 devices
  Input: put ledstate in the keyboard notifier
  ...

49 files changed, 3904 insertions, 119 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index f50e927a1189..2edec00c12c0 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4356,6 +4356,16 @@ L:	linux-wireless@vger.kernel.org
 W:      http://oops.ghostprotocols.net:81/blog
 S:      Maintained
 
+WM97XX TOUCHSCREEN DRIVERS
+P:      Mark Brown
+M:      broonie@opensource.wolfsonmicro.com
+P:      Liam Girdwood
+M:      liam.girdwood@wolfsonmicro.com
+L:      linux-input@vger.kernel.org
+T:      git git://opensource.wolfsonmicro.com/linux-2.6-touch
+W:      http://opensource.wolfsonmicro.com/node/7
+S:      Supported
+
 X.25 NETWORK LAYER
 P:      Henner Eisen
 M:      eis@baty.hanse.de
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index 9769bf8279a6..60b934adea65 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -42,6 +42,7 @@
 #include <linux/input.h>
 #include <linux/reboot.h>
 #include <linux/notifier.h>
+#include <linux/jiffies.h>
 
 extern void ctrl_alt_del(void);
 
@@ -928,7 +929,8 @@ static void k_brl(struct vc_data *vc, unsigned char value, char up_flag)
         if (up_flag) {
                 if (brl_timeout) {
                         if (!committing ||
-                            jiffies - releasestart > (brl_timeout * HZ) / 1000) {
+                            time_after(jiffies,
+                                       releasestart + msecs_to_jiffies(brl_timeout))) {
                                 committing = pressed;
                                 releasestart = jiffies;
                         }
@@ -1238,6 +1240,7 @@ static void kbd_keycode(unsigned int keycode, int down, int hw_raw)
         }
 
         param.shift = shift_final = (shift_state | kbd->slockstate) ^ kbd->lockstate;
+        param.ledstate = kbd->ledflagstate;
         key_map = key_maps[shift_final];
 
         if (atomic_notifier_call_chain(&keyboard_notifier_list, KBD_KEYCODE, &param) == NOTIFY_STOP || !key_map) {
@@ -1286,6 +1289,7 @@ static void kbd_keycode(unsigned int keycode, int down, int hw_raw)
 
         (*k_handler[type])(vc, keysym & 0xff, !down);
 
+        param.ledstate = kbd->ledflagstate;
         atomic_notifier_call_chain(&keyboard_notifier_list, KBD_POST_KEYSYM, &param);
 
         if (type != KT_SLOCK)
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 28ddc3fdd3d1..d3f8d9194f30 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -405,6 +405,9 @@
 #define USB_VENDOR_ID_YEALINK           0x6993
 #define USB_DEVICE_ID_YEALINK_P1K_P4K_B2K       0xb001
 
+#define USB_VENDOR_ID_KYE               0x0458
+#define USB_DEVICE_ID_KYE_GPEN_560      0x5003
+
 /*
  * Alphabetically sorted blacklist by quirk type.
  */
@@ -698,6 +701,7 @@ static const struct hid_blacklist {
         { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_63, HID_QUIRK_IGNORE },
         { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_64, HID_QUIRK_IGNORE },
         { USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY, HID_QUIRK_IGNORE },
+        { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560, HID_QUIRK_IGNORE },
 
         { 0, 0 }
 };
diff --git a/drivers/input/input-polldev.c b/drivers/input/input-polldev.c
index 490918a5d192..0d3ce7a50fb1 100644
--- a/drivers/input/input-polldev.c
+++ b/drivers/input/input-polldev.c
@@ -73,7 +73,7 @@ static void input_polled_device_work(struct work_struct *work)
 
 static int input_open_polled_device(struct input_dev *input)
 {
-        struct input_polled_dev *dev = input->private;
+        struct input_polled_dev *dev = input_get_drvdata(input);
         int error;
 
         error = input_polldev_start_workqueue();
@@ -91,7 +91,7 @@ static int input_open_polled_device(struct input_dev *input)
 
 static void input_close_polled_device(struct input_dev *input)
 {
-        struct input_polled_dev *dev = input->private;
+        struct input_polled_dev *dev = input_get_drvdata(input);
 
         cancel_delayed_work_sync(&dev->work);
         input_polldev_stop_workqueue();
@@ -151,10 +151,10 @@ int input_register_polled_device(struct input_polled_dev *dev)
 {
         struct input_dev *input = dev->input;
 
+        input_set_drvdata(input, dev);
         INIT_DELAYED_WORK(&dev->work, input_polled_device_work);
         if (!dev->poll_interval)
                 dev->poll_interval = 500;
-        input->private = dev;
         input->open = input_open_polled_device;
         input->close = input_close_polled_device;
 
diff --git a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig
index 7c662ee594a3..be5c14a5a0a4 100644
--- a/drivers/input/joystick/Kconfig
+++ b/drivers/input/joystick/Kconfig
@@ -193,6 +193,18 @@ config JOYSTICK_TWIDJOY
           To compile this driver as a module, choose M here: the
           module will be called twidjoy.
 
+config JOYSTICK_ZHENHUA
+        tristate "5-byte Zhenhua RC transmitter"
+        select SERIO
+        help
+          Say Y here if you have a Zhen Hua PPM-4CH transmitter which is
+          supplied with a ready to fly micro electric indoor helicopters
+          such as EasyCopter, Lama, MiniCopter, DragonFly or Jabo and want
+          to use it via serial cable as a joystick.
+
+          To compile this driver as a module, choose M here: the
+          module will be called zhenhua.
+
 config JOYSTICK_DB9
         tristate "Multisystem, Sega Genesis, Saturn joysticks and gamepads"
         depends on PARPORT
diff --git a/drivers/input/joystick/Makefile b/drivers/input/joystick/Makefile
index e855abb0cc51..fdbf8c4c2876 100644
--- a/drivers/input/joystick/Makefile
+++ b/drivers/input/joystick/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_JOYSTICK_GF2K)		+= gf2k.o
 obj-$(CONFIG_JOYSTICK_GRIP)             += grip.o
 obj-$(CONFIG_JOYSTICK_GRIP_MP)          += grip_mp.o
 obj-$(CONFIG_JOYSTICK_GUILLEMOT)        += guillemot.o
+obj-$(CONFIG_JOYSTICK_IFORCE)           += iforce/
 obj-$(CONFIG_JOYSTICK_INTERACT)         += interact.o
 obj-$(CONFIG_JOYSTICK_JOYDUMP)          += joydump.o
 obj-$(CONFIG_JOYSTICK_MAGELLAN)         += magellan.o
@@ -27,5 +28,5 @@ obj-$(CONFIG_JOYSTICK_TURBOGRAFX)	+= turbografx.o
 obj-$(CONFIG_JOYSTICK_TWIDJOY)          += twidjoy.o
 obj-$(CONFIG_JOYSTICK_WARRIOR)          += warrior.o
 obj-$(CONFIG_JOYSTICK_XPAD)             += xpad.o
+obj-$(CONFIG_JOYSTICK_ZHENHUA)          += zhenhua.o
 
-obj-$(CONFIG_JOYSTICK_IFORCE)           += iforce/
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 0380597249bb..52ddb04644ab 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -1,5 +1,5 @@
 /*
- * X-Box gamepad - v0.0.6
+ * X-Box gamepad driver
  *
  * Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de>
  *               2004 Oliver Schwartz <Oliver.Schwartz@gmx.de>,
@@ -68,6 +68,8 @@
  *  - dance pads will map D-PAD to buttons, not axes
  *  - pass the module paramater 'dpad_to_buttons' to force
  *    the D-PAD to map to buttons if your pad is not detected
+ *
+ * Later changes can be tracked in SCM.
  */
 
 #include <linux/kernel.h>
@@ -77,7 +79,6 @@
 #include <linux/module.h>
 #include <linux/usb/input.h>
 
-#define DRIVER_VERSION "v0.0.6"
 #define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"
 #define DRIVER_DESC "X-Box pad driver"
 
@@ -87,10 +88,12 @@
    but we map them to axes when possible to simplify things */
 #define MAP_DPAD_TO_BUTTONS    0
 #define MAP_DPAD_TO_AXES       1
-#define MAP_DPAD_UNKNOWN       -1
+#define MAP_DPAD_UNKNOWN       2
 
 #define XTYPE_XBOX        0
 #define XTYPE_XBOX360     1
+#define XTYPE_XBOX360W    2
+#define XTYPE_UNKNOWN     3
 
 static int dpad_to_buttons;
 module_param(dpad_to_buttons, bool, S_IRUGO);
@@ -107,8 +110,10 @@ static const struct xpad_device {
         { 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", MAP_DPAD_TO_AXES, XTYPE_XBOX },
         { 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", MAP_DPAD_TO_AXES, XTYPE_XBOX },
         { 0x045e, 0x0287, "Microsoft Xbox Controller S", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+        { 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
         { 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
         { 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
+        { 0x046d, 0xc242, "Logitech Chillstream Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX360 },
         { 0x046d, 0xca84, "Logitech Xbox Cordless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
         { 0x046d, 0xca88, "Logitech Compact Controller for Xbox", MAP_DPAD_TO_AXES, XTYPE_XBOX },
         { 0x05fd, 0x1007, "Mad Catz Controller (unverified)", MAP_DPAD_TO_AXES, XTYPE_XBOX },
@@ -135,18 +140,26 @@ static const struct xpad_device {
         { 0x0f30, 0x8888, "BigBen XBMiniPad Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
         { 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
         { 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+        { 0x1430, 0x4748, "RedOctane Guitar Hero X-plorer", MAP_DPAD_TO_AXES, XTYPE_XBOX360 },
         { 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
         { 0x045e, 0x028e, "Microsoft X-Box 360 pad", MAP_DPAD_TO_AXES, XTYPE_XBOX360 },
         { 0xffff, 0xffff, "Chinese-made Xbox Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX },
-        { 0x0000, 0x0000, "Generic X-Box pad", MAP_DPAD_UNKNOWN, XTYPE_XBOX }
+        { 0x0000, 0x0000, "Generic X-Box pad", MAP_DPAD_UNKNOWN, XTYPE_UNKNOWN }
 };
 
-static const signed short xpad_btn[] = {
-        BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z,       /* "analog" buttons */
+/* buttons shared with xbox and xbox360 */
+static const signed short xpad_common_btn[] = {
+        BTN_A, BTN_B, BTN_X, BTN_Y,                     /* "analog" buttons */
         BTN_START, BTN_BACK, BTN_THUMBL, BTN_THUMBR,    /* start/back/sticks */
         -1                                              /* terminating entry */
 };
 
+/* original xbox controllers only */
+static const signed short xpad_btn[] = {
+        BTN_C, BTN_Z,           /* "analog" buttons */
+        -1                      /* terminating entry */
+};
+
 /* only used if MAP_DPAD_TO_BUTTONS */
 static const signed short xpad_btn_pad[] = {
         BTN_LEFT, BTN_RIGHT,            /* d-pad left, right */
@@ -173,12 +186,27 @@ static const signed short xpad_abs_pad[] = {
         -1                      /* terminating entry */
 };
 
-/* Xbox 360 has a vendor-specific (sub)class, so we cannot match it with only
- * USB_INTERFACE_INFO, more to that this device has 4 InterfaceProtocols,
- * but we need only one of them. */
+/* Xbox 360 has a vendor-specific class, so we cannot match it with only
+ * USB_INTERFACE_INFO (also specifically refused by USB subsystem), so we
+ * match against vendor id as well. Wired Xbox 360 devices have protocol 1,
+ * wireless controllers have protocol 129. */
+#define XPAD_XBOX360_VENDOR_PROTOCOL(vend,pr) \
+        .match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO, \
+        .idVendor = (vend), \
+        .bInterfaceClass = USB_CLASS_VENDOR_SPEC, \
+        .bInterfaceSubClass = 93, \
+        .bInterfaceProtocol = (pr)
+#define XPAD_XBOX360_VENDOR(vend) \
+        { XPAD_XBOX360_VENDOR_PROTOCOL(vend,1) }, \
+        { XPAD_XBOX360_VENDOR_PROTOCOL(vend,129) }
+
 static struct usb_device_id xpad_table [] = {
         { USB_INTERFACE_INFO('X', 'B', 0) },    /* X-Box USB-IF not approved class */
-        { USB_DEVICE_INTERFACE_PROTOCOL(0x045e, 0x028e, 1) },   /* X-Box 360 controller */
+        XPAD_XBOX360_VENDOR(0x045e),            /* Microsoft X-Box 360 controllers */
+        XPAD_XBOX360_VENDOR(0x046d),            /* Logitech X-Box 360 style controllers */
+        XPAD_XBOX360_VENDOR(0x0738),            /* Mad Catz X-Box 360 controllers */
+        XPAD_XBOX360_VENDOR(0x0e6f),            /* 0x0e6f X-Box 360 controllers */
+        XPAD_XBOX360_VENDOR(0x1430),            /* RedOctane X-Box 360 controllers */
         { }
 };
 
@@ -188,10 +216,15 @@ struct usb_xpad {
         struct input_dev *dev;          /* input device interface */
         struct usb_device *udev;        /* usb device */
 
+        int pad_present;
+
         struct urb *irq_in;             /* urb for interrupt in report */
         unsigned char *idata;           /* input data */
         dma_addr_t idata_dma;
 
+        struct urb *bulk_out;
+        unsigned char *bdata;
+
 #if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
         struct urb *irq_out;            /* urb for interrupt out report */
         unsigned char *odata;           /* output data */
@@ -227,13 +260,13 @@ static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *d
         input_report_abs(dev, ABS_X,
                          (__s16) le16_to_cpup((__le16 *)(data + 12)));
         input_report_abs(dev, ABS_Y,
-                         (__s16) le16_to_cpup((__le16 *)(data + 14)));
+                         ~(__s16) le16_to_cpup((__le16 *)(data + 14)));
 
         /* right stick */
         input_report_abs(dev, ABS_RX,
                          (__s16) le16_to_cpup((__le16 *)(data + 16)));
         input_report_abs(dev, ABS_RY,
-                         (__s16) le16_to_cpup((__le16 *)(data + 18)));
+                         ~(__s16) le16_to_cpup((__le16 *)(data + 18)));
 
         /* triggers left/right */
         input_report_abs(dev, ABS_Z, data[10]);
@@ -321,13 +354,13 @@ static void xpad360_process_packet(struct usb_xpad *xpad,
         input_report_abs(dev, ABS_X,
                          (__s16) le16_to_cpup((__le16 *)(data + 6)));
         input_report_abs(dev, ABS_Y,
-                         (__s16) le16_to_cpup((__le16 *)(data + 8)));
+                         ~(__s16) le16_to_cpup((__le16 *)(data + 8)));
 
         /* right stick */
         input_report_abs(dev, ABS_RX,
                          (__s16) le16_to_cpup((__le16 *)(data + 10)));
         input_report_abs(dev, ABS_RY,
-                         (__s16) le16_to_cpup((__le16 *)(data + 12)));
+                         ~(__s16) le16_to_cpup((__le16 *)(data + 12)));
 
         /* triggers left/right */
         input_report_abs(dev, ABS_Z, data[4]);
@@ -336,6 +369,39 @@ static void xpad360_process_packet(struct usb_xpad *xpad,
         input_sync(dev);
 }
 
+/*
+ * xpad360w_process_packet
+ *
+ * Completes a request by converting the data into events for the
+ * input subsystem. It is version for xbox 360 wireless controller.
+ *
+ * Byte.Bit
+ * 00.1 - Status change: The controller or headset has connected/disconnected
+ *                       Bits 01.7 and 01.6 are valid
+ * 01.7 - Controller present
+ * 01.6 - Headset present
+ * 01.1 - Pad state (Bytes 4+) valid
+ *
+ */
+
+static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
+{
+        /* Presence change */
+        if (data[0] & 0x08) {
+                if (data[1] & 0x80) {
+                        xpad->pad_present = 1;
+                        usb_submit_urb(xpad->bulk_out, GFP_ATOMIC);
+                } else
+                        xpad->pad_present = 0;
+        }
+
+        /* Valid pad data */
+        if (!(data[1] & 0x1))
+                return;
+
+        xpad360_process_packet(xpad, cmd, &data[4]);
+}
+
 static void xpad_irq_in(struct urb *urb)
 {
         struct usb_xpad *xpad = urb->context;
@@ -358,10 +424,16 @@ static void xpad_irq_in(struct urb *urb)
                 goto exit;
         }
 
-        if (xpad->xtype == XTYPE_XBOX360)
+        switch (xpad->xtype) {
+        case XTYPE_XBOX360:
                 xpad360_process_packet(xpad, 0, xpad->idata);
-        else
+                break;
+        case XTYPE_XBOX360W:
+                xpad360w_process_packet(xpad, 0, xpad->idata);
+                break;
+        default:
                 xpad_process_packet(xpad, 0, xpad->idata);
+        }
 
 exit:
         retval = usb_submit_urb (urb, GFP_ATOMIC);
@@ -399,6 +471,23 @@ exit:
                     __FUNCTION__, retval);
 }
 
+static void xpad_bulk_out(struct urb *urb)
+{
+        switch (urb->status) {
+        case 0:
+                /* success */
+                break;
+        case -ECONNRESET:
+        case -ENOENT:
+        case -ESHUTDOWN:
+                /* this urb is terminated, clean up */
+                dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
+                break;
+        default:
+                dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
+        }
+}
+
 static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad)
 {
         struct usb_endpoint_descriptor *ep_irq_out;
@@ -408,7 +497,7 @@ static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad)
                 return 0;
 
         xpad->odata = usb_buffer_alloc(xpad->udev, XPAD_PKT_LEN,
-                                       GFP_ATOMIC, &xpad->odata_dma );
+                                       GFP_KERNEL, &xpad->odata_dma);
         if (!xpad->odata)
                 goto fail1;
 
@@ -469,6 +558,7 @@ static int xpad_play_effect(struct input_dev *dev, void *data,
                 xpad->odata[5] = 0x00;
                 xpad->odata[6] = 0x00;
                 xpad->odata[7] = 0x00;
+                xpad->irq_out->transfer_buffer_length = 8;
                 usb_submit_urb(xpad->irq_out, GFP_KERNEL);
         }
 
@@ -477,6 +567,9 @@ static int xpad_play_effect(struct input_dev *dev, void *data,
 
 static int xpad_init_ff(struct usb_xpad *xpad)
 {
+        if (xpad->xtype != XTYPE_XBOX360)
+                return 0;
+
         input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);
 
         return input_ff_create_memless(xpad->dev, NULL, xpad_play_effect);
@@ -502,6 +595,7 @@ static void xpad_send_led_command(struct usb_xpad *xpad, int command)
                 xpad->odata[0] = 0x01;
                 xpad->odata[1] = 0x03;
                 xpad->odata[2] = command;
+                xpad->irq_out->transfer_buffer_length = 3;
                 usb_submit_urb(xpad->irq_out, GFP_KERNEL);
                 mutex_unlock(&xpad->odata_mutex);
         }
@@ -574,6 +668,10 @@ static int xpad_open(struct input_dev *dev)
 {
         struct usb_xpad *xpad = input_get_drvdata(dev);
 
+        /* URB was submitted in probe */
+        if(xpad->xtype == XTYPE_XBOX360W)
+                return 0;
+
         xpad->irq_in->dev = xpad->udev;
         if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
                 return -EIO;
@@ -585,7 +683,8 @@ static void xpad_close(struct input_dev *dev)
 {
         struct usb_xpad *xpad = input_get_drvdata(dev);
 
-        usb_kill_urb(xpad->irq_in);
+        if(xpad->xtype != XTYPE_XBOX360W)
+                usb_kill_urb(xpad->irq_in);
         xpad_stop_output(xpad);
 }
 
@@ -632,7 +731,7 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
                 goto fail1;
 
         xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN,
-                                       GFP_ATOMIC, &xpad->idata_dma);
+                                       GFP_KERNEL, &xpad->idata_dma);
         if (!xpad->idata)
                 goto fail1;
 
@@ -644,7 +743,16 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
         xpad->dpad_mapping = xpad_device[i].dpad_mapping;
         xpad->xtype = xpad_device[i].xtype;
         if (xpad->dpad_mapping == MAP_DPAD_UNKNOWN)
-                xpad->dpad_mapping = dpad_to_buttons;
+                xpad->dpad_mapping = !dpad_to_buttons;
+        if (xpad->xtype == XTYPE_UNKNOWN) {
+                if (intf->cur_altsetting->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC) {
+                        if (intf->cur_altsetting->desc.bInterfaceProtocol == 129)
+                                xpad->xtype = XTYPE_XBOX360W;
+                        else
+                                xpad->xtype = XTYPE_XBOX360;
+                } else
+                        xpad->xtype = XTYPE_XBOX;
+        }
         xpad->dev = input_dev;
         usb_make_path(udev, xpad->phys, sizeof(xpad->phys));
         strlcat(xpad->phys, "/input0", sizeof(xpad->phys));
@@ -662,11 +770,14 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
         input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
 
         /* set up buttons */
-        for (i = 0; xpad_btn[i] >= 0; i++)
-                set_bit(xpad_btn[i], input_dev->keybit);
-        if (xpad->xtype == XTYPE_XBOX360)
+        for (i = 0; xpad_common_btn[i] >= 0; i++)
+                set_bit(xpad_common_btn[i], input_dev->keybit);
+        if ((xpad->xtype == XTYPE_XBOX360) || (xpad->xtype == XTYPE_XBOX360W))
                 for (i = 0; xpad360_btn[i] >= 0; i++)
                         set_bit(xpad360_btn[i], input_dev->keybit);
+        else
+                for (i = 0; xpad_btn[i] >= 0; i++)
+                        set_bit(xpad_btn[i], input_dev->keybit);
         if (xpad->dpad_mapping == MAP_DPAD_TO_BUTTONS)
                 for (i = 0; xpad_btn_pad[i] >= 0; i++)
                         set_bit(xpad_btn_pad[i], input_dev->keybit);
@@ -703,8 +814,57 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
                 goto fail4;
 
         usb_set_intfdata(intf, xpad);
+
+        /*
+         * Submit the int URB immediatly rather than waiting for open
+         * because we get status messages from the device whether
+         * or not any controllers are attached.  In fact, it's
+         * exactly the message that a controller has arrived that
+         * we're waiting for.
+         */
+        if (xpad->xtype == XTYPE_XBOX360W) {
+                xpad->irq_in->dev = xpad->udev;
+                error = usb_submit_urb(xpad->irq_in, GFP_KERNEL);
+                if (error)
+                        goto fail4;
+
+                /*
+                 * Setup the message to set the LEDs on the
+                 * controller when it shows up
+                 */
+                xpad->bulk_out = usb_alloc_urb(0, GFP_KERNEL);
+                if(!xpad->bulk_out)
+                        goto fail5;
+
+                xpad->bdata = kzalloc(XPAD_PKT_LEN, GFP_KERNEL);
+                if(!xpad->bdata)
+                        goto fail6;
+
+                xpad->bdata[2] = 0x08;
+                switch (intf->cur_altsetting->desc.bInterfaceNumber) {
+                case 0:
+                        xpad->bdata[3] = 0x42;
+                        break;
+                case 2:
+                        xpad->bdata[3] = 0x43;
+                        break;
+                case 4:
+                        xpad->bdata[3] = 0x44;
+                        break;
+                case 6:
+                        xpad->bdata[3] = 0x45;
+                }
+
+                ep_irq_in = &intf->cur_altsetting->endpoint[1].desc;
+                usb_fill_bulk_urb(xpad->bulk_out, udev,
+                                usb_sndbulkpipe(udev, ep_irq_in->bEndpointAddress),
+                                xpad->bdata, XPAD_PKT_LEN, xpad_bulk_out, xpad);
+        }
+
         return 0;
 
+ fail6: usb_free_urb(xpad->bulk_out);
+ fail5: usb_kill_urb(xpad->irq_in);
  fail4: usb_free_urb(xpad->irq_in);
  fail3: xpad_deinit_output(xpad);
  fail2: usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
@@ -723,6 +883,11 @@ static void xpad_disconnect(struct usb_interface *intf)
                 xpad_led_disconnect(xpad);
                 input_unregister_device(xpad->dev);
                 xpad_deinit_output(xpad);
+                if (xpad->xtype == XTYPE_XBOX360W) {
+                        usb_kill_urb(xpad->bulk_out);
+                        usb_free_urb(xpad->bulk_out);
+                        usb_kill_urb(xpad->irq_in);
+                }
                 usb_free_urb(xpad->irq_in);
                 usb_buffer_free(xpad->udev, XPAD_PKT_LEN,
                                 xpad->idata, xpad->idata_dma);
@@ -741,7 +906,7 @@ static int __init usb_xpad_init(void)
 {
         int result = usb_register(&xpad_driver);
         if (result == 0)
-                info(DRIVER_DESC ":" DRIVER_VERSION);
+                info(DRIVER_DESC);
         return result;
 }
 
diff --git a/drivers/input/joystick/zhenhua.c b/drivers/input/joystick/zhenhua.c
new file mode 100644
index 000000000000..b5853125c898
--- /dev/null
+++ b/drivers/input/joystick/zhenhua.c
@@ -0,0 +1,243 @@
+/*
+ *  derived from "twidjoy.c"
+ *
+ *  Copyright (c) 2008 Martin Kebert
+ *  Copyright (c) 2001 Arndt Schoenewald
+ *  Copyright (c) 2000-2001 Vojtech Pavlik
+ *  Copyright (c) 2000 Mark Fletcher
+ *
+ */
+
+/*
+ * Driver to use 4CH RC transmitter using Zhen Hua 5-byte protocol (Walkera Lama,
+ * EasyCopter etc.) as a joystick under Linux.
+ *
+ * RC transmitters using Zhen Hua 5-byte protocol are cheap four channels
+ * transmitters for control a RC planes or RC helicopters with possibility to
+ * connect on a serial port.
+ * Data coming from transmitter is in this order:
+ * 1. byte = synchronisation byte
+ * 2. byte = X axis
+ * 3. byte = Y axis
+ * 4. byte = RZ axis
+ * 5. byte = Z axis
+ * (and this is repeated)
+ *
+ * For questions or feedback regarding this driver module please contact:
+ * Martin Kebert <gkmarty@gmail.com> - but I am not a C-programmer nor kernel
+ * coder :-(
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC     "RC transmitter with 5-byte Zhen Hua protocol joystick driver"
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Constants.
+ */
+
+#define ZHENHUA_MAX_LENGTH 5
+
+/*
+ * Zhen Hua data.
+ */
+
+struct zhenhua {
+        struct input_dev *dev;
+        int idx;
+        unsigned char data[ZHENHUA_MAX_LENGTH];
+        char phys[32];
+};
+
+
+/* bits in all incoming bytes needs to be "reversed" */
+static int zhenhua_bitreverse(int x)
+{
+        x = ((x & 0xaa) >> 1) | ((x & 0x55) << 1);
+        x = ((x & 0xcc) >> 2) | ((x & 0x33) << 2);
+        x = ((x & 0xf0) >> 4) | ((x & 0x0f) << 4);
+        return x;
+}
+
+/*
+ * zhenhua_process_packet() decodes packets the driver receives from the
+ * RC transmitter. It updates the data accordingly.
+ */
+
+static void zhenhua_process_packet(struct zhenhua *zhenhua)
+{
+        struct input_dev *dev = zhenhua->dev;
+        unsigned char *data = zhenhua->data;
+
+        input_report_abs(dev, ABS_Y, data[1]);
+        input_report_abs(dev, ABS_X, data[2]);
+        input_report_abs(dev, ABS_RZ, data[3]);
+        input_report_abs(dev, ABS_Z, data[4]);
+
+        input_sync(dev);
+}
+
+/*
+ * zhenhua_interrupt() is called by the low level driver when characters
+ * are ready for us. We then buffer them for further processing, or call the
+ * packet processing routine.
+ */
+
+static irqreturn_t zhenhua_interrupt(struct serio *serio, unsigned char data, unsigned int flags)
+{
+        struct zhenhua *zhenhua = serio_get_drvdata(serio);
+
+        /* All Zhen Hua packets are 5 bytes. The fact that the first byte
+         * is allways 0xf7 and all others are in range 0x32 - 0xc8 (50-200)
+         * can be used to check and regain sync. */
+
+        if (data == 0xef)
+                zhenhua->idx = 0;       /* this byte starts a new packet */
+        else if (zhenhua->idx == 0)
+                return IRQ_HANDLED;     /* wrong MSB -- ignore this byte */
+
+        if (zhenhua->idx < ZHENHUA_MAX_LENGTH)
+                zhenhua->data[zhenhua->idx++] = zhenhua_bitreverse(data);
+
+        if (zhenhua->idx == ZHENHUA_MAX_LENGTH) {
+                zhenhua_process_packet(zhenhua);
+                zhenhua->idx = 0;
+        }
+
+        return IRQ_HANDLED;
+}
+
+/*
+ * zhenhua_disconnect() is the opposite of zhenhua_connect()
+ */
+
+static void zhenhua_disconnect(struct serio *serio)
+{
+        struct zhenhua *zhenhua = serio_get_drvdata(serio);
+
+        serio_close(serio);
+        serio_set_drvdata(serio, NULL);
+        input_unregister_device(zhenhua->dev);
+        kfree(zhenhua);
+}
+
+/*
+ * zhenhua_connect() is the routine that is called when someone adds a
+ * new serio device. It looks for the Twiddler, and if found, registers
+ * it as an input device.
+ */
+
+static int zhenhua_connect(struct serio *serio, struct serio_driver *drv)
+{
+        struct zhenhua *zhenhua;
+        struct input_dev *input_dev;
+        int err = -ENOMEM;
+
+        zhenhua = kzalloc(sizeof(struct zhenhua), GFP_KERNEL);
+        input_dev = input_allocate_device();
+        if (!zhenhua || !input_dev)
+                goto fail1;
+
+        zhenhua->dev = input_dev;
+        snprintf(zhenhua->phys, sizeof(zhenhua->phys), "%s/input0", serio->phys);
+
+        input_dev->name = "Zhen Hua 5-byte device";
+        input_dev->phys = zhenhua->phys;
+        input_dev->id.bustype = BUS_RS232;
+        input_dev->id.vendor = SERIO_ZHENHUA;
+        input_dev->id.product = 0x0001;
+        input_dev->id.version = 0x0100;
+        input_dev->dev.parent = &serio->dev;
+
+        input_dev->evbit[0] = BIT(EV_ABS);
+        input_set_abs_params(input_dev, ABS_X, 50, 200, 0, 0);
+        input_set_abs_params(input_dev, ABS_Y, 50, 200, 0, 0);
+        input_set_abs_params(input_dev, ABS_Z, 50, 200, 0, 0);
+        input_set_abs_params(input_dev, ABS_RZ, 50, 200, 0, 0);
+
+        serio_set_drvdata(serio, zhenhua);
+
+        err = serio_open(serio, drv);
+        if (err)
+                goto fail2;
+
+        err = input_register_device(zhenhua->dev);
+        if (err)
+                goto fail3;
+
+        return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+        kfree(zhenhua);
+        return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id zhenhua_serio_ids[] = {
+        {
+                .type   = SERIO_RS232,
+                .proto  = SERIO_ZHENHUA,
+                .id     = SERIO_ANY,
+                .extra  = SERIO_ANY,
+        },
+        { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, zhenhua_serio_ids);
+
+static struct serio_driver zhenhua_drv = {
+        .driver         = {
+                .name   = "zhenhua",
+        },
+        .description    = DRIVER_DESC,
+        .id_table       = zhenhua_serio_ids,
+        .interrupt      = zhenhua_interrupt,
+        .connect        = zhenhua_connect,
+        .disconnect     = zhenhua_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init zhenhua_init(void)
+{
+        return serio_register_driver(&zhenhua_drv);
+}
+
+static void __exit zhenhua_exit(void)
+{
+        serio_unregister_driver(&zhenhua_drv);
+}
+
+module_init(zhenhua_init);
+module_exit(zhenhua_exit);
diff --git a/drivers/input/keyboard/aaed2000_kbd.c b/drivers/input/keyboard/aaed2000_kbd.c
index 72abc196ce66..a293e8b3f508 100644
--- a/drivers/input/keyboard/aaed2000_kbd.c
+++ b/drivers/input/keyboard/aaed2000_kbd.c
@@ -156,11 +156,15 @@ static int __devexit aaedkbd_remove(struct platform_device *pdev)
         return 0;
 }
 
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:aaed2000-keyboard");
+
 static struct platform_driver aaedkbd_driver = {
         .probe          = aaedkbd_probe,
         .remove         = __devexit_p(aaedkbd_remove),
         .driver         = {
                 .name   = "aaed2000-keyboard",
+                .owner  = THIS_MODULE,
         },
 };
 
diff --git a/drivers/input/keyboard/bf54x-keys.c b/drivers/input/keyboard/bf54x-keys.c
index 05e3494cf8b8..54ed8e2e1c02 100644
--- a/drivers/input/keyboard/bf54x-keys.c
+++ b/drivers/input/keyboard/bf54x-keys.c
@@ -312,6 +312,8 @@ static int __devinit bfin_kpad_probe(struct platform_device *pdev)
 
         bfin_write_KPAD_CTL(bfin_read_KPAD_CTL() | KPAD_EN);
 
+        device_init_wakeup(&pdev->dev, 1);
+
         printk(KERN_ERR DRV_NAME
                 ": Blackfin BF54x Keypad registered IRQ %d\n", bf54x_kpad->irq);
 
@@ -354,12 +356,40 @@ static int __devexit bfin_kpad_remove(struct platform_device *pdev)
         return 0;
 }
 
+#ifdef CONFIG_PM
+static int bfin_kpad_suspend(struct platform_device *pdev, pm_message_t state)
+{
+        struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
+
+        if (device_may_wakeup(&pdev->dev))
+                enable_irq_wake(bf54x_kpad->irq);
+
+        return 0;
+}
+
+static int bfin_kpad_resume(struct platform_device *pdev)
+{
+        struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
+
+        if (device_may_wakeup(&pdev->dev))
+                disable_irq_wake(bf54x_kpad->irq);
+
+        return 0;
+}
+#else
+# define bfin_kpad_suspend NULL
+# define bfin_kpad_resume  NULL
+#endif
+
 struct platform_driver bfin_kpad_device_driver = {
-        .probe          = bfin_kpad_probe,
-        .remove         = __devexit_p(bfin_kpad_remove),
         .driver         = {
                 .name   = DRV_NAME,
-        }
+                .owner  = THIS_MODULE,
+        },
+        .probe          = bfin_kpad_probe,
+        .remove         = __devexit_p(bfin_kpad_remove),
+        .suspend        = bfin_kpad_suspend,
+        .resume         = bfin_kpad_resume,
 };
 
 static int __init bfin_kpad_init(void)
@@ -378,3 +408,4 @@ module_exit(bfin_kpad_exit);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("Keypad driver for BF54x Processors");
+MODULE_ALIAS("platform:bf54x-keys");
diff --git a/drivers/input/keyboard/corgikbd.c b/drivers/input/keyboard/corgikbd.c
index 5d6cc7f1dc94..29fbec6218b9 100644
--- a/drivers/input/keyboard/corgikbd.c
+++ b/drivers/input/keyboard/corgikbd.c
@@ -393,6 +393,7 @@ static struct platform_driver corgikbd_driver = {
         .resume         = corgikbd_resume,
         .driver         = {
                 .name   = "corgi-keyboard",
+                .owner  = THIS_MODULE,
         },
 };
 
@@ -412,3 +413,4 @@ module_exit(corgikbd_exit);
 MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
 MODULE_DESCRIPTION("Corgi Keyboard Driver");
 MODULE_LICENSE("GPLv2");
+MODULE_ALIAS("platform:corgi-keyboard");
diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index 6a9ca4bdcb74..bbd00c3fe98c 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -43,10 +43,11 @@ static irqreturn_t gpio_keys_isr(int irq, void *dev_id)
 
                         input_event(input, type, button->code, !!state);
                         input_sync(input);
+                        return IRQ_HANDLED;
                 }
         }
 
-        return IRQ_HANDLED;
+        return IRQ_NONE;
 }
 
 static int __devinit gpio_keys_probe(struct platform_device *pdev)
@@ -213,6 +214,7 @@ struct platform_driver gpio_keys_device_driver = {
         .resume         = gpio_keys_resume,
         .driver         = {
                 .name   = "gpio-keys",
+                .owner  = THIS_MODULE,
         }
 };
 
@@ -232,3 +234,4 @@ module_exit(gpio_keys_exit);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Phil Blundell <pb@handhelds.org>");
 MODULE_DESCRIPTION("Keyboard driver for CPU GPIOs");
+MODULE_ALIAS("platform:gpio-keys");
diff --git a/drivers/input/keyboard/jornada680_kbd.c b/drivers/input/keyboard/jornada680_kbd.c
index a23633a2e1b4..9387da343f97 100644
--- a/drivers/input/keyboard/jornada680_kbd.c
+++ b/drivers/input/keyboard/jornada680_kbd.c
@@ -254,6 +254,7 @@ static int __devexit jornada680kbd_remove(struct platform_device *pdev)
 static struct platform_driver jornada680kbd_driver = {
         .driver = {
                 .name   = "jornada680_kbd",
+                .owner  = THIS_MODULE,
         },
         .probe  = jornada680kbd_probe,
         .remove = __devexit_p(jornada680kbd_remove),
@@ -275,3 +276,4 @@ module_exit(jornada680kbd_exit);
 MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");
 MODULE_DESCRIPTION("HP Jornada 620/660/680/690 Keyboard Driver");
 MODULE_LICENSE("GPLv2");
+MODULE_ALIAS("platform:jornada680_kbd");
diff --git a/drivers/input/keyboard/jornada720_kbd.c b/drivers/input/keyboard/jornada720_kbd.c
index 986f93cfc6b8..a1164a0c7736 100644
--- a/drivers/input/keyboard/jornada720_kbd.c
+++ b/drivers/input/keyboard/jornada720_kbd.c
@@ -162,9 +162,13 @@ static int __devexit jornada720_kbd_remove(struct platform_device *pdev)
         return 0;
 }
 
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:jornada720_kbd");
+
 static struct platform_driver jornada720_kbd_driver = {
         .driver  = {
                 .name    = "jornada720_kbd",
+                .owner  = THIS_MODULE,
          },
         .probe   = jornada720_kbd_probe,
         .remove  = __devexit_p(jornada720_kbd_remove),
diff --git a/drivers/input/keyboard/locomokbd.c b/drivers/input/keyboard/locomokbd.c
index 5a0ca18d6755..9caed30f3bbb 100644
--- a/drivers/input/keyboard/locomokbd.c
+++ b/drivers/input/keyboard/locomokbd.c
@@ -1,14 +1,12 @@
 /*
- *  Copyright (c) 2005 John Lenz
+ * LoCoMo keyboard driver for Linux-based ARM PDAs:
+ *      - SHARP Zaurus Collie (SL-5500)
+ *      - SHARP Zaurus Poodle (SL-5600)
  *
+ * Copyright (c) 2005 John Lenz
  * Based on from xtkbd.c
- */
-
-/*
- * LoCoMo keyboard driver for Linux/ARM
- */
-
-/*
+ *
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
@@ -47,7 +45,8 @@ MODULE_LICENSE("GPL");
 #define KEY_CONTACT             KEY_F18
 #define KEY_CENTER              KEY_F15
 
-static unsigned char locomokbd_keycode[LOCOMOKBD_NUMKEYS] = {
+static const unsigned char
+locomokbd_keycode[LOCOMOKBD_NUMKEYS] __devinitconst = {
         0, KEY_ESC, KEY_ACTIVITY, 0, 0, 0, 0, 0, 0, 0,                          /* 0 - 9 */
         0, 0, 0, 0, 0, 0, 0, KEY_MENU, KEY_HOME, KEY_CONTACT,                   /* 10 - 19 */
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0,                                           /* 20 - 29 */
@@ -67,22 +66,21 @@ static unsigned char locomokbd_keycode[LOCOMOKBD_NUMKEYS] = {
 #define KB_COLS                 8
 #define KB_ROWMASK(r)           (1 << (r))
 #define SCANCODE(c,r)           ( ((c)<<4) + (r) + 1 )
-#define NR_SCANCODES            128
 
 #define KB_DELAY                8
 #define SCAN_INTERVAL           (HZ/10)
-#define LOCOMOKBD_PRESSED       1
 
 struct locomokbd {
         unsigned char keycode[LOCOMOKBD_NUMKEYS];
         struct input_dev *input;
         char phys[32];
 
-        struct locomo_dev *ldev;
         unsigned long base;
         spinlock_t lock;
 
         struct timer_list timer;
+        unsigned long suspend_jiffies;
+        unsigned int count_cancel;
 };
 
 /* helper functions for reading the keyboard matrix */
@@ -128,7 +126,7 @@ static inline void locomokbd_reset_col(unsigned long membase, int col)
 /* Scan the hardware keyboard and push any changes up through the input layer */
 static void locomokbd_scankeyboard(struct locomokbd *locomokbd)
 {
-        unsigned int row, col, rowd, scancode;
+        unsigned int row, col, rowd;
         unsigned long flags;
         unsigned int num_pressed;
         unsigned long membase = locomokbd->base;
@@ -145,13 +143,33 @@ static void locomokbd_scankeyboard(struct locomokbd *locomokbd)
 
                 rowd = ~locomo_readl(membase + LOCOMO_KIB);
                 for (row = 0; row < KB_ROWS; row++) {
+                        unsigned int scancode, pressed, key;
+
                         scancode = SCANCODE(col, row);
-                        if (rowd & KB_ROWMASK(row)) {
-                                num_pressed += 1;
-                                input_report_key(locomokbd->input, locomokbd->keycode[scancode], 1);
-                        } else {
-                                input_report_key(locomokbd->input, locomokbd->keycode[scancode], 0);
-                        }
+                        pressed = rowd & KB_ROWMASK(row);
+                        key = locomokbd->keycode[scancode];
+
+                        input_report_key(locomokbd->input, key, pressed);
+                        if (likely(!pressed))
+                                continue;
+
+                        num_pressed++;
+
+                        /* The "Cancel/ESC" key is labeled "On/Off" on
+                         * Collie and Poodle and should suspend the device
+                         * if it was pressed for more than a second. */
+                        if (unlikely(key == KEY_ESC)) {
+                                if (!time_after(jiffies,
+                                        locomokbd->suspend_jiffies + HZ))
+                                        continue;
+                                if (locomokbd->count_cancel++
+                                        != (HZ/SCAN_INTERVAL + 1))
+                                        continue;
+                                input_event(locomokbd->input, EV_PWR,
+                                        KEY_SUSPEND, 1);
+                                locomokbd->suspend_jiffies = jiffies;
+                        } else
+                                locomokbd->count_cancel = 0;
                 }
                 locomokbd_reset_col(membase, col);
         }
@@ -162,6 +180,8 @@ static void locomokbd_scankeyboard(struct locomokbd *locomokbd)
         /* if any keys are pressed, enable the timer */
         if (num_pressed)
                 mod_timer(&locomokbd->timer, jiffies + SCAN_INTERVAL);
+        else
+                locomokbd->count_cancel = 0;
 
         spin_unlock_irqrestore(&locomokbd->lock, flags);
 }
@@ -186,10 +206,11 @@ static irqreturn_t locomokbd_interrupt(int irq, void *dev_id)
 static void locomokbd_timer_callback(unsigned long data)
 {
         struct locomokbd *locomokbd = (struct locomokbd *) data;
+
         locomokbd_scankeyboard(locomokbd);
 }
 
-static int locomokbd_probe(struct locomo_dev *dev)
+static int __devinit locomokbd_probe(struct locomo_dev *dev)
 {
         struct locomokbd *locomokbd;
         struct input_dev *input_dev;
@@ -211,7 +232,6 @@ static int locomokbd_probe(struct locomo_dev *dev)
                 goto err_free_mem;
         }
 
-        locomokbd->ldev = dev;
         locomo_set_drvdata(dev, locomokbd);
 
         locomokbd->base = (unsigned long) dev->mapbase;
@@ -222,6 +242,8 @@ static int locomokbd_probe(struct locomo_dev *dev)
         locomokbd->timer.function = locomokbd_timer_callback;
         locomokbd->timer.data = (unsigned long) locomokbd;
 
+        locomokbd->suspend_jiffies = jiffies;
+
         locomokbd->input = input_dev;
         strcpy(locomokbd->phys, "locomokbd/input0");
 
@@ -233,9 +255,10 @@ static int locomokbd_probe(struct locomo_dev *dev)
         input_dev->id.version = 0x0100;
         input_dev->dev.parent = &dev->dev;
 
-        input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+        input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
+                                BIT_MASK(EV_PWR);
         input_dev->keycode = locomokbd->keycode;
-        input_dev->keycodesize = sizeof(unsigned char);
+        input_dev->keycodesize = sizeof(locomokbd_keycode[0]);
         input_dev->keycodemax = ARRAY_SIZE(locomokbd_keycode);
 
         memcpy(locomokbd->keycode, locomokbd_keycode, sizeof(locomokbd->keycode));
@@ -268,7 +291,7 @@ static int locomokbd_probe(struct locomo_dev *dev)
         return err;
 }
 
-static int locomokbd_remove(struct locomo_dev *dev)
+static int __devexit locomokbd_remove(struct locomo_dev *dev)
 {
         struct locomokbd *locomokbd = locomo_get_drvdata(dev);
 
@@ -292,7 +315,7 @@ static struct locomo_driver keyboard_driver = {
         },
         .devid  = LOCOMO_DEVID_KEYBOARD,
         .probe  = locomokbd_probe,
-        .remove = locomokbd_remove,
+        .remove = __devexit_p(locomokbd_remove),
 };
 
 static int __init locomokbd_init(void)
diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c
index babc913d5492..10afd2068068 100644
--- a/drivers/input/keyboard/omap-keypad.c
+++ b/drivers/input/keyboard/omap-keypad.c
@@ -352,6 +352,9 @@ static int __init omap_kp_probe(struct platform_device *pdev)
                         }
                         omap_set_gpio_direction(row_gpios[row_idx], 1);
                 }
+        } else {
+                col_idx = 0;
+                row_idx = 0;
         }
 
         setup_timer(&omap_kp->timer, omap_kp_timer, (unsigned long)omap_kp);
@@ -415,10 +418,10 @@ err4:
 err3:
         device_remove_file(&pdev->dev, &dev_attr_enable);
 err2:
-        for (i = row_idx-1; i >=0; i--)
+        for (i = row_idx - 1; i >=0; i--)
                 omap_free_gpio(row_gpios[i]);
 err1:
-        for (i = col_idx-1; i >=0; i--)
+        for (i = col_idx - 1; i >=0; i--)
                 omap_free_gpio(col_gpios[i]);
 
         kfree(omap_kp);
@@ -464,6 +467,7 @@ static struct platform_driver omap_kp_driver = {
         .resume         = omap_kp_resume,
         .driver         = {
                 .name   = "omap-keypad",
+                .owner  = THIS_MODULE,
         },
 };
 
@@ -484,3 +488,4 @@ module_exit(omap_kp_exit);
 MODULE_AUTHOR("Timo Teräs");
 MODULE_DESCRIPTION("OMAP Keypad Driver");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:omap-keypad");
diff --git a/drivers/input/keyboard/pxa27x_keypad.c b/drivers/input/keyboard/pxa27x_keypad.c
index 4e651c11c1da..3dea0c5077a9 100644
--- a/drivers/input/keyboard/pxa27x_keypad.c
+++ b/drivers/input/keyboard/pxa27x_keypad.c
@@ -545,6 +545,9 @@ static int __devexit pxa27x_keypad_remove(struct platform_device *pdev)
         return 0;
 }
 
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:pxa27x-keypad");
+
 static struct platform_driver pxa27x_keypad_driver = {
         .probe          = pxa27x_keypad_probe,
         .remove         = __devexit_p(pxa27x_keypad_remove),
@@ -552,6 +555,7 @@ static struct platform_driver pxa27x_keypad_driver = {
         .resume         = pxa27x_keypad_resume,
         .driver         = {
                 .name   = "pxa27x-keypad",
+                .owner  = THIS_MODULE,
         },
 };
 
diff --git a/drivers/input/keyboard/spitzkbd.c b/drivers/input/keyboard/spitzkbd.c
index 0be74bfc58fe..61e401bc9109 100644
--- a/drivers/input/keyboard/spitzkbd.c
+++ b/drivers/input/keyboard/spitzkbd.c
@@ -495,3 +495,4 @@ module_exit(spitzkbd_exit);
 MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
 MODULE_DESCRIPTION("Spitz Keyboard Driver");
 MODULE_LICENSE("GPLv2");
+MODULE_ALIAS("platform:spitz-keyboard");
diff --git a/drivers/input/keyboard/tosakbd.c b/drivers/input/keyboard/tosakbd.c
index 3884d1e3f070..94e444b4ee15 100644
--- a/drivers/input/keyboard/tosakbd.c
+++ b/drivers/input/keyboard/tosakbd.c
@@ -52,7 +52,7 @@ KEY_X, KEY_F, KEY_SPACE, KEY_APOSTROPHE, TOSA_KEY_MAIL, KEY_LEFT, KEY_DOWN, KEY_
 struct tosakbd {
         unsigned int keycode[ARRAY_SIZE(tosakbd_keycode)];
         struct input_dev *input;
-
+        int suspended;
         spinlock_t lock; /* protect kbd scanning */
         struct timer_list timer;
 };
@@ -133,6 +133,9 @@ static void tosakbd_scankeyboard(struct platform_device *dev)
 
         spin_lock_irqsave(&tosakbd->lock, flags);
 
+        if (tosakbd->suspended)
+                goto out;
+
         for (col = 0; col < TOSA_KEY_STROBE_NUM; col++) {
                 /*
                  * Discharge the output driver capacitatance
@@ -174,6 +177,7 @@ static void tosakbd_scankeyboard(struct platform_device *dev)
         if (num_pressed)
                 mod_timer(&tosakbd->timer, jiffies + SCAN_INTERVAL);
 
+ out:
         spin_unlock_irqrestore(&tosakbd->lock, flags);
 }
 
@@ -200,6 +204,7 @@ static irqreturn_t tosakbd_interrupt(int irq, void *__dev)
 static void tosakbd_timer_callback(unsigned long __dev)
 {
         struct platform_device *dev = (struct platform_device *)__dev;
+
         tosakbd_scankeyboard(dev);
 }
 
@@ -207,6 +212,13 @@ static void tosakbd_timer_callback(unsigned long __dev)
 static int tosakbd_suspend(struct platform_device *dev, pm_message_t state)
 {
         struct tosakbd *tosakbd = platform_get_drvdata(dev);
+        unsigned long flags;
+
+        spin_lock_irqsave(&tosakbd->lock, flags);
+        PGSR1 = (PGSR1 & ~TOSA_GPIO_LOW_STROBE_BIT);
+        PGSR2 = (PGSR2 & ~TOSA_GPIO_HIGH_STROBE_BIT);
+        tosakbd->suspended = 1;
+        spin_unlock_irqrestore(&tosakbd->lock, flags);
 
         del_timer_sync(&tosakbd->timer);
 
@@ -215,6 +227,9 @@ static int tosakbd_suspend(struct platform_device *dev, pm_message_t state)
 
 static int tosakbd_resume(struct platform_device *dev)
 {
+        struct tosakbd *tosakbd = platform_get_drvdata(dev);
+
+        tosakbd->suspended = 0;
         tosakbd_scankeyboard(dev);
 
         return 0;
@@ -365,8 +380,8 @@ fail:
         return error;
 }
 
-static int __devexit tosakbd_remove(struct platform_device *dev) {
-
+static int __devexit tosakbd_remove(struct platform_device *dev)
+{
         int i;
         struct tosakbd *tosakbd = platform_get_drvdata(dev);
 
@@ -394,6 +409,7 @@ static struct platform_driver tosakbd_driver = {
         .resume         = tosakbd_resume,
         .driver         = {
                 .name   = "tosa-keyboard",
+                .owner  = THIS_MODULE,
         },
 };
 
@@ -413,3 +429,4 @@ module_exit(tosakbd_exit);
 MODULE_AUTHOR("Dirk Opfer <Dirk@Opfer-Online.de>");
 MODULE_DESCRIPTION("Tosa Keyboard Driver");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:tosa-keyboard");
diff --git a/drivers/input/misc/cobalt_btns.c b/drivers/input/misc/cobalt_btns.c
index 5511ef006a66..6a1f48b76e32 100644
--- a/drivers/input/misc/cobalt_btns.c
+++ b/drivers/input/misc/cobalt_btns.c
@@ -148,6 +148,9 @@ static int __devexit cobalt_buttons_remove(struct platform_device *pdev)
         return 0;
 }
 
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:Cobalt buttons");
+
 static struct platform_driver cobalt_buttons_driver = {
         .probe  = cobalt_buttons_probe,
         .remove = __devexit_p(cobalt_buttons_remove),
diff --git a/drivers/input/mouse/gpio_mouse.c b/drivers/input/mouse/gpio_mouse.c
index 0936d6ba015c..339290184871 100644
--- a/drivers/input/mouse/gpio_mouse.c
+++ b/drivers/input/mouse/gpio_mouse.c
@@ -171,10 +171,14 @@ static int __devexit gpio_mouse_remove(struct platform_device *pdev)
         return 0;
 }
 
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:gpio_mouse");
+
 struct platform_driver gpio_mouse_device_driver = {
         .remove         = __devexit_p(gpio_mouse_remove),
         .driver         = {
                 .name   = "gpio_mouse",
+                .owner  = THIS_MODULE,
         }
 };
 
diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig
index b88569e21d60..ec4b6610f730 100644
--- a/drivers/input/serio/Kconfig
+++ b/drivers/input/serio/Kconfig
@@ -88,6 +88,16 @@ config SERIO_RPCKBD
           To compile this driver as a module, choose M here: the
           module will be called rpckbd.
 
+config SERIO_AT32PSIF
+        tristate "AVR32 PSIF PS/2 keyboard and mouse controller"
+        depends on AVR32
+        help
+          Say Y here if you want to use the PSIF peripheral on AVR32 devices
+          and connect a PS/2 keyboard and/or mouse to it.
+
+          To compile this driver as a module, choose M here: the module will
+          be called at32psif.
+
 config SERIO_AMBAKMI
         tristate "AMBA KMI keyboard controller"
         depends on ARM_AMBA
diff --git a/drivers/input/serio/Makefile b/drivers/input/serio/Makefile
index 4155197867a3..38b886887cbc 100644
--- a/drivers/input/serio/Makefile
+++ b/drivers/input/serio/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_SERIO_CT82C710)	+= ct82c710.o
 obj-$(CONFIG_SERIO_RPCKBD)      += rpckbd.o
 obj-$(CONFIG_SERIO_SA1111)      += sa1111ps2.o
 obj-$(CONFIG_SERIO_AMBAKMI)     += ambakmi.o
+obj-$(CONFIG_SERIO_AT32PSIF)    += at32psif.o
 obj-$(CONFIG_SERIO_Q40KBD)      += q40kbd.o
 obj-$(CONFIG_SERIO_GSCPS2)      += gscps2.o
 obj-$(CONFIG_HP_SDC)            += hp_sdc.o
diff --git a/drivers/input/serio/at32psif.c b/drivers/input/serio/at32psif.c
new file mode 100644
index 000000000000..41fda8c67b1e
--- /dev/null
+++ b/drivers/input/serio/at32psif.c
@@ -0,0 +1,375 @@
+/*
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * Driver for the AT32AP700X PS/2 controller (PSIF).
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/serio.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+
+/* PSIF register offsets */
+#define PSIF_CR                         0x00
+#define PSIF_RHR                        0x04
+#define PSIF_THR                        0x08
+#define PSIF_SR                         0x10
+#define PSIF_IER                        0x14
+#define PSIF_IDR                        0x18
+#define PSIF_IMR                        0x1c
+#define PSIF_PSR                        0x24
+
+/* Bitfields in control register. */
+#define PSIF_CR_RXDIS_OFFSET            1
+#define PSIF_CR_RXDIS_SIZE              1
+#define PSIF_CR_RXEN_OFFSET             0
+#define PSIF_CR_RXEN_SIZE               1
+#define PSIF_CR_SWRST_OFFSET            15
+#define PSIF_CR_SWRST_SIZE              1
+#define PSIF_CR_TXDIS_OFFSET            9
+#define PSIF_CR_TXDIS_SIZE              1
+#define PSIF_CR_TXEN_OFFSET             8
+#define PSIF_CR_TXEN_SIZE               1
+
+/* Bitfields in interrupt disable, enable, mask and status register. */
+#define PSIF_NACK_OFFSET                8
+#define PSIF_NACK_SIZE                  1
+#define PSIF_OVRUN_OFFSET               5
+#define PSIF_OVRUN_SIZE                 1
+#define PSIF_PARITY_OFFSET              9
+#define PSIF_PARITY_SIZE                1
+#define PSIF_RXRDY_OFFSET               4
+#define PSIF_RXRDY_SIZE                 1
+#define PSIF_TXEMPTY_OFFSET             1
+#define PSIF_TXEMPTY_SIZE               1
+#define PSIF_TXRDY_OFFSET               0
+#define PSIF_TXRDY_SIZE                 1
+
+/* Bitfields in prescale register. */
+#define PSIF_PSR_PRSCV_OFFSET           0
+#define PSIF_PSR_PRSCV_SIZE             12
+
+/* Bitfields in receive hold register. */
+#define PSIF_RHR_RXDATA_OFFSET          0
+#define PSIF_RHR_RXDATA_SIZE            8
+
+/* Bitfields in transmit hold register. */
+#define PSIF_THR_TXDATA_OFFSET          0
+#define PSIF_THR_TXDATA_SIZE            8
+
+/* Bit manipulation macros */
+#define PSIF_BIT(name)                                  \
+        (1 << PSIF_##name##_OFFSET)
+
+#define PSIF_BF(name, value)                            \
+        (((value) & ((1 << PSIF_##name##_SIZE) - 1))    \
+         << PSIF_##name##_OFFSET)
+
+#define PSIF_BFEXT(name, value)                         \
+        (((value) >> PSIF_##name##_OFFSET)              \
+         & ((1 << PSIF_##name##_SIZE) - 1))
+
+#define PSIF_BFINS(name, value, old)                    \
+        (((old) & ~(((1 << PSIF_##name##_SIZE) - 1)     \
+                    << PSIF_##name##_OFFSET))           \
+         | PSIF_BF(name, value))
+
+/* Register access macros */
+#define psif_readl(port, reg)                           \
+        __raw_readl((port)->regs + PSIF_##reg)
+
+#define psif_writel(port, reg, value)                   \
+        __raw_writel((value), (port)->regs + PSIF_##reg)
+
+struct psif {
+        struct platform_device  *pdev;
+        struct clk              *pclk;
+        struct serio            *io;
+        void __iomem            *regs;
+        unsigned int            irq;
+        unsigned int            open;
+        /* Prevent concurrent writes to PSIF THR. */
+        spinlock_t              lock;
+};
+
+static irqreturn_t psif_interrupt(int irq, void *_ptr)
+{
+        struct psif *psif = _ptr;
+        int retval = IRQ_NONE;
+        unsigned int io_flags = 0;
+        unsigned long status;
+
+        status = psif_readl(psif, SR);
+
+        if (status & PSIF_BIT(RXRDY)) {
+                unsigned char val = (unsigned char) psif_readl(psif, RHR);
+
+                if (status & PSIF_BIT(PARITY))
+                        io_flags |= SERIO_PARITY;
+                if (status & PSIF_BIT(OVRUN))
+                        dev_err(&psif->pdev->dev, "overrun read error\n");
+
+                serio_interrupt(psif->io, val, io_flags);
+
+                retval = IRQ_HANDLED;
+        }
+
+        return retval;
+}
+
+static int psif_write(struct serio *io, unsigned char val)
+{
+        struct psif *psif = io->port_data;
+        unsigned long flags;
+        int timeout = 10;
+        int retval = 0;
+
+        spin_lock_irqsave(&psif->lock, flags);
+
+        while (!(psif_readl(psif, SR) & PSIF_BIT(TXEMPTY)) && timeout--)
+                msleep(10);
+
+        if (timeout >= 0) {
+                psif_writel(psif, THR, val);
+        } else {
+                dev_dbg(&psif->pdev->dev, "timeout writing to THR\n");
+                retval = -EBUSY;
+        }
+
+        spin_unlock_irqrestore(&psif->lock, flags);
+
+        return retval;
+}
+
+static int psif_open(struct serio *io)
+{
+        struct psif *psif = io->port_data;
+        int retval;
+
+        retval = clk_enable(psif->pclk);
+        if (retval)
+                goto out;
+
+        psif_writel(psif, CR, PSIF_BIT(CR_TXEN) | PSIF_BIT(CR_RXEN));
+        psif_writel(psif, IER, PSIF_BIT(RXRDY));
+
+        psif->open = 1;
+out:
+        return retval;
+}
+
+static void psif_close(struct serio *io)
+{
+        struct psif *psif = io->port_data;
+
+        psif->open = 0;
+
+        psif_writel(psif, IDR, ~0UL);
+        psif_writel(psif, CR, PSIF_BIT(CR_TXDIS) | PSIF_BIT(CR_RXDIS));
+
+        clk_disable(psif->pclk);
+}
+
+static void psif_set_prescaler(struct psif *psif)
+{
+        unsigned long prscv;
+        unsigned long rate = clk_get_rate(psif->pclk);
+
+        /* PRSCV = Pulse length (100 us) * PSIF module frequency. */
+        prscv = 100 * (rate / 1000000UL);
+
+        if (prscv > ((1<<PSIF_PSR_PRSCV_SIZE) - 1)) {
+                prscv = (1<<PSIF_PSR_PRSCV_SIZE) - 1;
+                dev_dbg(&psif->pdev->dev, "pclk too fast, "
+                                "prescaler set to max\n");
+        }
+
+        clk_enable(psif->pclk);
+        psif_writel(psif, PSR, prscv);
+        clk_disable(psif->pclk);
+}
+
+static int __init psif_probe(struct platform_device *pdev)
+{
+        struct resource *regs;
+        struct psif *psif;
+        struct serio *io;
+        struct clk *pclk;
+        int irq;
+        int ret;
+
+        psif = kzalloc(sizeof(struct psif), GFP_KERNEL);
+        if (!psif) {
+                dev_dbg(&pdev->dev, "out of memory\n");
+                ret = -ENOMEM;
+                goto out;
+        }
+        psif->pdev = pdev;
+
+        io = kzalloc(sizeof(struct serio), GFP_KERNEL);
+        if (!io) {
+                dev_dbg(&pdev->dev, "out of memory\n");
+                ret = -ENOMEM;
+                goto out_free_psif;
+        }
+        psif->io = io;
+
+        regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (!regs) {
+                dev_dbg(&pdev->dev, "no mmio resources defined\n");
+                ret = -ENOMEM;
+                goto out_free_io;
+        }
+
+        psif->regs = ioremap(regs->start, regs->end - regs->start + 1);
+        if (!psif->regs) {
+                ret = -ENOMEM;
+                dev_dbg(&pdev->dev, "could not map I/O memory\n");
+                goto out_free_io;
+        }
+
+        pclk = clk_get(&pdev->dev, "pclk");
+        if (IS_ERR(pclk)) {
+                dev_dbg(&pdev->dev, "could not get peripheral clock\n");
+                ret = PTR_ERR(pclk);
+                goto out_iounmap;
+        }
+        psif->pclk = pclk;
+
+        /* Reset the PSIF to enter at a known state. */
+        ret = clk_enable(pclk);
+        if (ret) {
+                dev_dbg(&pdev->dev, "could not enable pclk\n");
+                goto out_put_clk;
+        }
+        psif_writel(psif, CR, PSIF_BIT(CR_SWRST));
+        clk_disable(pclk);
+
+        irq = platform_get_irq(pdev, 0);
+        if (irq < 0) {
+                dev_dbg(&pdev->dev, "could not get irq\n");
+                ret = -ENXIO;
+                goto out_put_clk;
+        }
+        ret = request_irq(irq, psif_interrupt, IRQF_SHARED, "at32psif", psif);
+        if (ret) {
+                dev_dbg(&pdev->dev, "could not request irq %d\n", irq);
+                goto out_put_clk;
+        }
+        psif->irq = irq;
+
+        io->id.type     = SERIO_8042;
+        io->write       = psif_write;
+        io->open        = psif_open;
+        io->close       = psif_close;
+        snprintf(io->name, sizeof(io->name), "AVR32 PS/2 port%d", pdev->id);
+        snprintf(io->phys, sizeof(io->phys), "at32psif/serio%d", pdev->id);
+        io->port_data   = psif;
+        io->dev.parent  = &pdev->dev;
+
+        psif_set_prescaler(psif);
+
+        spin_lock_init(&psif->lock);
+        serio_register_port(psif->io);
+        platform_set_drvdata(pdev, psif);
+
+        dev_info(&pdev->dev, "Atmel AVR32 PSIF PS/2 driver on 0x%08x irq %d\n",
+                        (int)psif->regs, psif->irq);
+
+        return 0;
+
+out_put_clk:
+        clk_put(psif->pclk);
+out_iounmap:
+        iounmap(psif->regs);
+out_free_io:
+        kfree(io);
+out_free_psif:
+        kfree(psif);
+out:
+        return ret;
+}
+
+static int __exit psif_remove(struct platform_device *pdev)
+{
+        struct psif *psif = platform_get_drvdata(pdev);
+
+        psif_writel(psif, IDR, ~0UL);
+        psif_writel(psif, CR, PSIF_BIT(CR_TXDIS) | PSIF_BIT(CR_RXDIS));
+
+        serio_unregister_port(psif->io);
+        iounmap(psif->regs);
+        free_irq(psif->irq, psif);
+        clk_put(psif->pclk);
+        kfree(psif);
+
+        platform_set_drvdata(pdev, NULL);
+
+        return 0;
+}
+
+#ifdef CONFIG_PM
+static int psif_suspend(struct platform_device *pdev, pm_message_t state)
+{
+        struct psif *psif = platform_get_drvdata(pdev);
+
+        if (psif->open) {
+                psif_writel(psif, CR, PSIF_BIT(CR_RXDIS) | PSIF_BIT(CR_TXDIS));
+                clk_disable(psif->pclk);
+        }
+
+        return 0;
+}
+
+static int psif_resume(struct platform_device *pdev)
+{
+        struct psif *psif = platform_get_drvdata(pdev);
+
+        if (psif->open) {
+                clk_enable(psif->pclk);
+                psif_set_prescaler(psif);
+                psif_writel(psif, CR, PSIF_BIT(CR_RXEN) | PSIF_BIT(CR_TXEN));
+        }
+
+        return 0;
+}
+#else
+#define psif_suspend    NULL
+#define psif_resume     NULL
+#endif
+
+static struct platform_driver psif_driver = {
+        .remove         = __exit_p(psif_remove),
+        .driver         = {
+                .name   = "atmel_psif",
+        },
+        .suspend        = psif_suspend,
+        .resume         = psif_resume,
+};
+
+static int __init psif_init(void)
+{
+        return platform_driver_probe(&psif_driver, psif_probe);
+}
+
+static void __exit psif_exit(void)
+{
+        platform_driver_unregister(&psif_driver);
+}
+
+module_init(psif_init);
+module_exit(psif_exit);
+
+MODULE_AUTHOR("Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>");
+MODULE_DESCRIPTION("Atmel AVR32 PSIF PS/2 driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 60931aceb828..5ece9f56babc 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -370,10 +370,10 @@ static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *
         if (pnp_irq_valid(dev,0))
                 i8042_pnp_kbd_irq = pnp_irq(dev, 0);
 
-        strncpy(i8042_pnp_kbd_name, did->id, sizeof(i8042_pnp_kbd_name));
+        strlcpy(i8042_pnp_kbd_name, did->id, sizeof(i8042_pnp_kbd_name));
         if (strlen(pnp_dev_name(dev))) {
-                strncat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
-                strncat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
+                strlcat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
+                strlcat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
         }
 
         i8042_pnp_kbd_devices++;
@@ -391,10 +391,10 @@ static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *
         if (pnp_irq_valid(dev, 0))
                 i8042_pnp_aux_irq = pnp_irq(dev, 0);
 
-        strncpy(i8042_pnp_aux_name, did->id, sizeof(i8042_pnp_aux_name));
+        strlcpy(i8042_pnp_aux_name, did->id, sizeof(i8042_pnp_aux_name));
         if (strlen(pnp_dev_name(dev))) {
-                strncat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
-                strncat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
+                strlcat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
+                strlcat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
         }
 
         i8042_pnp_aux_devices++;
diff --git a/drivers/input/serio/rpckbd.c b/drivers/input/serio/rpckbd.c
index 49f84315cb32..34c59d9c6205 100644
--- a/drivers/input/serio/rpckbd.c
+++ b/drivers/input/serio/rpckbd.c
@@ -45,6 +45,7 @@
 MODULE_AUTHOR("Vojtech Pavlik, Russell King");
 MODULE_DESCRIPTION("Acorn RiscPC PS/2 keyboard controller driver");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:kart");
 
 static int rpckbd_write(struct serio *port, unsigned char val)
 {
@@ -140,6 +141,7 @@ static struct platform_driver rpckbd_driver = {
         .remove         = __devexit_p(rpckbd_remove),
         .driver         = {
                 .name   = "kart",
+                .owner  = THIS_MODULE,
         },
 };
 
diff --git a/drivers/input/tablet/Kconfig b/drivers/input/tablet/Kconfig
index d371c0bdc0bd..effb49ea24aa 100644
--- a/drivers/input/tablet/Kconfig
+++ b/drivers/input/tablet/Kconfig
@@ -25,14 +25,14 @@ config TABLET_USB_ACECAD
           module will be called acecad.
 
 config TABLET_USB_AIPTEK
-        tristate "Aiptek 6000U/8000U tablet support (USB)"
+        tristate "Aiptek 6000U/8000U and Genius G_PEN tablet support (USB)"
         depends on USB_ARCH_HAS_HCD
         select USB
         help
-          Say Y here if you want to use the USB version of the Aiptek 6000U
-          or Aiptek 8000U tablet.  Make sure to say Y to "Mouse support"
-          (CONFIG_INPUT_MOUSEDEV) and/or "Event interface support"
-          (CONFIG_INPUT_EVDEV) as well.
+          Say Y here if you want to use the USB version of the Aiptek 6000U,
+          Aiptek 8000U or Genius G-PEN 560 tablet.  Make sure to say Y to
+          "Mouse support" (CONFIG_INPUT_MOUSEDEV) and/or "Event interface
+          support" (CONFIG_INPUT_EVDEV) as well.
 
           To compile this driver as a module, choose M here: the
           module will be called aiptek.
diff --git a/drivers/input/tablet/aiptek.c b/drivers/input/tablet/aiptek.c
index 94683f58c9e1..1d759f6f8076 100644
--- a/drivers/input/tablet/aiptek.c
+++ b/drivers/input/tablet/aiptek.c
@@ -184,6 +184,7 @@
  */
 
 #define USB_VENDOR_ID_AIPTEK                            0x08ca
+#define USB_VENDOR_ID_KYE                               0x0458
 #define USB_REQ_GET_REPORT                              0x01
 #define USB_REQ_SET_REPORT                              0x09
 
@@ -832,6 +833,7 @@ static const struct usb_device_id aiptek_ids[] = {
         {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x22)},
         {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x23)},
         {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x24)},
+        {USB_DEVICE(USB_VENDOR_ID_KYE, 0x5003)},
         {}
 };
 
diff --git a/drivers/input/tablet/wacom.h b/drivers/input/tablet/wacom.h
index acf9830698cb..706619d06f71 100644
--- a/drivers/input/tablet/wacom.h
+++ b/drivers/input/tablet/wacom.h
@@ -101,8 +101,11 @@ struct wacom {
         dma_addr_t data_dma;
         struct input_dev *dev;
         struct usb_device *usbdev;
+        struct usb_interface *intf;
         struct urb *irq;
         struct wacom_wac * wacom_wac;
+        struct mutex lock;
+        int open:1;
         char phys[32];
 };
 
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 41caaef8e2d7..71cc0c140790 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -70,6 +70,7 @@ static void wacom_sys_irq(struct urb *urb)
                 input_sync(get_input_dev(&wcombo));
 
  exit:
+        usb_mark_last_busy(wacom->usbdev);
         retval = usb_submit_urb (urb, GFP_ATOMIC);
         if (retval)
                 err ("%s - usb_submit_urb failed with result %d",
@@ -124,10 +125,25 @@ static int wacom_open(struct input_dev *dev)
 {
         struct wacom *wacom = input_get_drvdata(dev);
 
+        mutex_lock(&wacom->lock);
+
         wacom->irq->dev = wacom->usbdev;
-        if (usb_submit_urb(wacom->irq, GFP_KERNEL))
+
+        if (usb_autopm_get_interface(wacom->intf) < 0) {
+                mutex_unlock(&wacom->lock);
                 return -EIO;
+        }
+
+        if (usb_submit_urb(wacom->irq, GFP_KERNEL)) {
+                usb_autopm_put_interface(wacom->intf);
+                mutex_unlock(&wacom->lock);
+                return -EIO;
+        }
+
+        wacom->open = 1;
+        wacom->intf->needs_remote_wakeup = 1;
 
+        mutex_unlock(&wacom->lock);
         return 0;
 }
 
@@ -135,7 +151,11 @@ static void wacom_close(struct input_dev *dev)
 {
         struct wacom *wacom = input_get_drvdata(dev);
 
+        mutex_lock(&wacom->lock);
         usb_kill_urb(wacom->irq);
+        wacom->open = 0;
+        wacom->intf->needs_remote_wakeup = 0;
+        mutex_unlock(&wacom->lock);
 }
 
 void input_dev_mo(struct input_dev *input_dev, struct wacom_wac *wacom_wac)
@@ -243,6 +263,8 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
 
         wacom->usbdev = dev;
         wacom->dev = input_dev;
+        wacom->intf = intf;
+        mutex_init(&wacom->lock);
         usb_make_path(dev, wacom->phys, sizeof(wacom->phys));
         strlcat(wacom->phys, "/input0", sizeof(wacom->phys));
 
@@ -304,23 +326,57 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
 
 static void wacom_disconnect(struct usb_interface *intf)
 {
-        struct wacom *wacom = usb_get_intfdata (intf);
+        struct wacom *wacom = usb_get_intfdata(intf);
 
         usb_set_intfdata(intf, NULL);
-        if (wacom) {
-                usb_kill_urb(wacom->irq);
-                input_unregister_device(wacom->dev);
-                usb_free_urb(wacom->irq);
-                usb_buffer_free(interface_to_usbdev(intf), 10, wacom->wacom_wac->data, wacom->data_dma);
-                kfree(wacom->wacom_wac);
-                kfree(wacom);
-        }
+
+        usb_kill_urb(wacom->irq);
+        input_unregister_device(wacom->dev);
+        usb_free_urb(wacom->irq);
+        usb_buffer_free(interface_to_usbdev(intf), 10, wacom->wacom_wac->data, wacom->data_dma);
+        kfree(wacom->wacom_wac);
+        kfree(wacom);
+}
+
+static int wacom_suspend(struct usb_interface *intf, pm_message_t message)
+{
+        struct wacom *wacom = usb_get_intfdata(intf);
+
+        mutex_lock(&wacom->lock);
+        usb_kill_urb(wacom->irq);
+        mutex_unlock(&wacom->lock);
+
+        return 0;
+}
+
+static int wacom_resume(struct usb_interface *intf)
+{
+        struct wacom *wacom = usb_get_intfdata(intf);
+        int rv;
+
+        mutex_lock(&wacom->lock);
+        if (wacom->open)
+                rv = usb_submit_urb(wacom->irq, GFP_NOIO);
+        else
+                rv = 0;
+        mutex_unlock(&wacom->lock);
+
+        return rv;
+}
+
+static int wacom_reset_resume(struct usb_interface *intf)
+{
+        return wacom_resume(intf);
 }
 
 static struct usb_driver wacom_driver = {
         .name =         "wacom",
         .probe =        wacom_probe,
         .disconnect =   wacom_disconnect,
+        .suspend =      wacom_suspend,
+        .resume =       wacom_resume,
+        .reset_resume = wacom_reset_resume,
+        .supports_autosuspend = 1,
 };
 
 static int __init wacom_init(void)
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index ffe33842143f..192513e1f04c 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -649,6 +649,7 @@ static struct wacom_features wacom_features[] = {
         { "Wacom Intuos3 6x11",  10, 54204, 31750, 1023, 63, INTUOS3 },
         { "Wacom Intuos3 4x6",   10, 31496, 19685, 1023, 63, INTUOS3S },
         { "Wacom Cintiq 21UX",   10, 87200, 65600, 1023, 63, CINTIQ },
+        { "Wacom Cintiq 20WSX",  10, 86680, 54180, 1023, 63, WACOM_BEE },
         { "Wacom Cintiq 12WX",   10, 53020, 33440, 1023, 63, WACOM_BEE },
         { "Wacom Intuos2 6x8",   10, 20320, 16240, 1023, 31, INTUOS },
         { }
@@ -702,6 +703,7 @@ static struct usb_device_id wacom_ids[] = {
         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB5) },
         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB7) },
         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x3F) },
+        { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC5) },
         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC6) },
         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x47) },
         { }
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 90e8e92dfe47..565ec711c2ee 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -185,6 +185,59 @@ config TOUCHSCREEN_UCB1400
           To compile this driver as a module, choose M here: the
           module will be called ucb1400_ts.
 
+config TOUCHSCREEN_WM97XX
+        tristate "Support for WM97xx AC97 touchscreen controllers"
+        depends on AC97_BUS
+        help
+          Say Y here if you have a Wolfson Microelectronics WM97xx
+          touchscreen connected to your system. Note that this option
+          only enables core driver, you will also need to select
+          support for appropriate chip below.
+
+          If unsure, say N.
+
+          To compile this driver as a module, choose M here: the
+          module will be called wm97xx-ts.
+
+config TOUCHSCREEN_WM9705
+        bool "WM9705 Touchscreen interface support"
+        depends on TOUCHSCREEN_WM97XX
+        help
+          Say Y here if you have a Wolfson Microelectronics WM9705
+          touchscreen controller connected to your system.
+
+          If unsure, say N.
+
+config TOUCHSCREEN_WM9712
+        bool "WM9712 Touchscreen interface support"
+        depends on TOUCHSCREEN_WM97XX
+        help
+          Say Y here if you have a Wolfson Microelectronics WM9712
+          touchscreen controller connected to your system.
+
+          If unsure, say N.
+
+config TOUCHSCREEN_WM9713
+        bool "WM9713 Touchscreen interface support"
+        depends on TOUCHSCREEN_WM97XX
+        help
+          Say Y here if you have a Wolfson Microelectronics WM9713 touchscreen
+          controller connected to your system.
+
+          If unsure, say N.
+
+config TOUCHSCREEN_WM97XX_MAINSTONE
+        tristate "WM97xx Mainstone accelerated touch"
+        depends on TOUCHSCREEN_WM97XX && ARCH_PXA
+        help
+          Say Y here for support for streaming mode with WM97xx touchscreens
+          on Mainstone systems.
+
+          If unsure, say N.
+
+          To compile this driver as a module, choose M here: the
+          module will be called mainstone-wm97xx.
+
 config TOUCHSCREEN_USB_COMPOSITE
         tristate "USB Touchscreen Driver"
         depends on USB_ARCH_HAS_HCD
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 35d4097df35a..3c096d75651d 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -4,6 +4,8 @@
 
 # Each configuration option enables a list of files.
 
+wm97xx-ts-y := wm97xx-core.o
+
 obj-$(CONFIG_TOUCHSCREEN_ADS7846)       += ads7846.o
 obj-$(CONFIG_TOUCHSCREEN_BITSY)         += h3600_ts_input.o
 obj-$(CONFIG_TOUCHSCREEN_CORGI)         += corgi_ts.o
@@ -19,3 +21,8 @@ obj-$(CONFIG_TOUCHSCREEN_PENMOUNT)	+= penmount.o
 obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT)    += touchright.o
 obj-$(CONFIG_TOUCHSCREEN_TOUCHWIN)      += touchwin.o
 obj-$(CONFIG_TOUCHSCREEN_UCB1400)       += ucb1400_ts.o
+obj-$(CONFIG_TOUCHSCREEN_WM97XX)        += wm97xx-ts.o
+wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9705)  += wm9705.o
+wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9712)  += wm9712.o
+wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9713)  += wm9713.o
+obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE)      += mainstone-wm97xx.o
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 39573b91c8de..907a45fe9d40 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -80,6 +80,7 @@ struct ads7846 {
 #endif
 
         u16                     model;
+        u16                     vref_mv;
         u16                     vref_delay_usecs;
         u16                     x_plate_ohms;
         u16                     pressure_max;
@@ -177,9 +178,6 @@ struct ads7846 {
  * The range is GND..vREF. The ads7843 and ads7835 must use external vREF;
  * ads7846 lets that pin be unconnected, to use internal vREF.
  */
-static unsigned vREF_mV;
-module_param(vREF_mV, uint, 0);
-MODULE_PARM_DESC(vREF_mV, "external vREF voltage, in milliVolts");
 
 struct ser_req {
         u8                      ref_on;
@@ -206,7 +204,6 @@ static int ads7846_read12_ser(struct device *dev, unsigned command)
         struct ads7846          *ts = dev_get_drvdata(dev);
         struct ser_req          *req = kzalloc(sizeof *req, GFP_KERNEL);
         int                     status;
-        int                     uninitialized_var(sample);
         int                     use_internal;
 
         if (!req)
@@ -263,13 +260,13 @@ static int ads7846_read12_ser(struct device *dev, unsigned command)
 
         if (status == 0) {
                 /* on-wire is a must-ignore bit, a BE12 value, then padding */
-                sample = be16_to_cpu(req->sample);
-                sample = sample >> 3;
-                sample &= 0x0fff;
+                status = be16_to_cpu(req->sample);
+                status = status >> 3;
+                status &= 0x0fff;
         }
 
         kfree(req);
-        return status ? status : sample;
+        return status;
 }
 
 #if defined(CONFIG_HWMON) || defined(CONFIG_HWMON_MODULE)
@@ -310,7 +307,7 @@ static inline unsigned vaux_adjust(struct ads7846 *ts, ssize_t v)
         unsigned retval = v;
 
         /* external resistors may scale vAUX into 0..vREF */
-        retval *= vREF_mV;
+        retval *= ts->vref_mv;
         retval = retval >> 12;
         return retval;
 }
@@ -368,14 +365,14 @@ static int ads784x_hwmon_register(struct spi_device *spi, struct ads7846 *ts)
         /* hwmon sensors need a reference voltage */
         switch (ts->model) {
         case 7846:
-                if (!vREF_mV) {
+                if (!ts->vref_mv) {
                         dev_dbg(&spi->dev, "assuming 2.5V internal vREF\n");
-                        vREF_mV = 2500;
+                        ts->vref_mv = 2500;
                 }
                 break;
         case 7845:
         case 7843:
-                if (!vREF_mV) {
+                if (!ts->vref_mv) {
                         dev_warn(&spi->dev,
                                 "external vREF for ADS%d not specified\n",
                                 ts->model);
@@ -868,6 +865,7 @@ static int __devinit ads7846_probe(struct spi_device *spi)
 
         ts->spi = spi;
         ts->input = input_dev;
+        ts->vref_mv = pdata->vref_mv;
 
         hrtimer_init(&ts->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
         ts->timer.function = ads7846_timer;
diff --git a/drivers/input/touchscreen/corgi_ts.c b/drivers/input/touchscreen/corgi_ts.c
index a22576779acd..4e9d8eece2e0 100644
--- a/drivers/input/touchscreen/corgi_ts.c
+++ b/drivers/input/touchscreen/corgi_ts.c
@@ -362,6 +362,7 @@ static struct platform_driver corgits_driver = {
         .resume         = corgits_resume,
         .driver         = {
                 .name   = "corgi-ts",
+                .owner  = THIS_MODULE,
         },
 };
 
@@ -381,3 +382,4 @@ module_exit(corgits_exit);
 MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
 MODULE_DESCRIPTION("Corgi TouchScreen Driver");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:corgi-ts");
diff --git a/drivers/input/touchscreen/jornada720_ts.c b/drivers/input/touchscreen/jornada720_ts.c
index 42a1c9a1940e..742242111bf1 100644
--- a/drivers/input/touchscreen/jornada720_ts.c
+++ b/drivers/input/touchscreen/jornada720_ts.c
@@ -160,11 +160,15 @@ static int __devexit jornada720_ts_remove(struct platform_device *pdev)
         return 0;
 }
 
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:jornada_ts");
+
 static struct platform_driver jornada720_ts_driver = {
         .probe          = jornada720_ts_probe,
         .remove         = __devexit_p(jornada720_ts_remove),
         .driver         = {
                 .name   = "jornada_ts",
+                .owner  = THIS_MODULE,
         },
 };
 
diff --git a/drivers/input/touchscreen/mainstone-wm97xx.c b/drivers/input/touchscreen/mainstone-wm97xx.c
new file mode 100644
index 000000000000..a79f029b91c0
--- /dev/null
+++ b/drivers/input/touchscreen/mainstone-wm97xx.c
@@ -0,0 +1,302 @@
+/*
+ * mainstone-wm97xx.c  --  Mainstone Continuous Touch screen driver for
+ *                         Wolfson WM97xx AC97 Codecs.
+ *
+ * Copyright 2004, 2007 Wolfson Microelectronics PLC.
+ * Author: Liam Girdwood
+ *         liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com
+ * Parts Copyright : Ian Molton <spyro@f2s.com>
+ *                   Andrew Zabolotny <zap@homelink.ru>
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ * Notes:
+ *     This is a wm97xx extended touch driver to capture touch
+ *     data in a continuous manner on the Intel XScale archictecture
+ *
+ *  Features:
+ *       - codecs supported:- WM9705, WM9712, WM9713
+ *       - processors supported:- Intel XScale PXA25x, PXA26x, PXA27x
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/wm97xx.h>
+#include <linux/io.h>
+#include <asm/arch/pxa-regs.h>
+
+#define VERSION         "0.13"
+
+struct continuous {
+        u16 id;    /* codec id */
+        u8 code;   /* continuous code */
+        u8 reads;  /* number of coord reads per read cycle */
+        u32 speed; /* number of coords per second */
+};
+
+#define WM_READS(sp) ((sp / HZ) + 1)
+
+static const struct continuous cinfo[] = {
+        {WM9705_ID2, 0, WM_READS(94), 94},
+        {WM9705_ID2, 1, WM_READS(188), 188},
+        {WM9705_ID2, 2, WM_READS(375), 375},
+        {WM9705_ID2, 3, WM_READS(750), 750},
+        {WM9712_ID2, 0, WM_READS(94), 94},
+        {WM9712_ID2, 1, WM_READS(188), 188},
+        {WM9712_ID2, 2, WM_READS(375), 375},
+        {WM9712_ID2, 3, WM_READS(750), 750},
+        {WM9713_ID2, 0, WM_READS(94), 94},
+        {WM9713_ID2, 1, WM_READS(120), 120},
+        {WM9713_ID2, 2, WM_READS(154), 154},
+        {WM9713_ID2, 3, WM_READS(188), 188},
+};
+
+/* continuous speed index */
+static int sp_idx;
+static u16 last, tries;
+
+/*
+ * Pen sampling frequency (Hz) in continuous mode.
+ */
+static int cont_rate = 200;
+module_param(cont_rate, int, 0);
+MODULE_PARM_DESC(cont_rate, "Sampling rate in continuous mode (Hz)");
+
+/*
+ * Pen down detection.
+ *
+ * This driver can either poll or use an interrupt to indicate a pen down
+ * event. If the irq request fails then it will fall back to polling mode.
+ */
+static int pen_int;
+module_param(pen_int, int, 0);
+MODULE_PARM_DESC(pen_int, "Pen down detection (1 = interrupt, 0 = polling)");
+
+/*
+ * Pressure readback.
+ *
+ * Set to 1 to read back pen down pressure
+ */
+static int pressure;
+module_param(pressure, int, 0);
+MODULE_PARM_DESC(pressure, "Pressure readback (1 = pressure, 0 = no pressure)");
+
+/*
+ * AC97 touch data slot.
+ *
+ * Touch screen readback data ac97 slot
+ */
+static int ac97_touch_slot = 5;
+module_param(ac97_touch_slot, int, 0);
+MODULE_PARM_DESC(ac97_touch_slot, "Touch screen data slot AC97 number");
+
+
+/* flush AC97 slot 5 FIFO on pxa machines */
+#ifdef CONFIG_PXA27x
+static void wm97xx_acc_pen_up(struct wm97xx *wm)
+{
+        schedule_timeout_uninterruptible(1);
+
+        while (MISR & (1 << 2))
+                MODR;
+}
+#else
+static void wm97xx_acc_pen_up(struct wm97xx *wm)
+{
+        int count = 16;
+        schedule_timeout_uninterruptible(1);
+
+        while (count < 16) {
+                MODR;
+                count--;
+        }
+}
+#endif
+
+static int wm97xx_acc_pen_down(struct wm97xx *wm)
+{
+        u16 x, y, p = 0x100 | WM97XX_ADCSEL_PRES;
+        int reads = 0;
+
+        /* When the AC97 queue has been drained we need to allow time
+         * to buffer up samples otherwise we end up spinning polling
+         * for samples.  The controller can't have a suitably low
+         * threashold set to use the notifications it gives.
+         */
+        schedule_timeout_uninterruptible(1);
+
+        if (tries > 5) {
+                tries = 0;
+                return RC_PENUP;
+        }
+
+        x = MODR;
+        if (x == last) {
+                tries++;
+                return RC_AGAIN;
+        }
+        last = x;
+        do {
+                if (reads)
+                        x = MODR;
+                y = MODR;
+                if (pressure)
+                        p = MODR;
+
+                /* are samples valid */
+                if ((x & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_X ||
+                    (y & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_Y ||
+                    (p & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_PRES)
+                        goto up;
+
+                /* coordinate is good */
+                tries = 0;
+                input_report_abs(wm->input_dev, ABS_X, x & 0xfff);
+                input_report_abs(wm->input_dev, ABS_Y, y & 0xfff);
+                input_report_abs(wm->input_dev, ABS_PRESSURE, p & 0xfff);
+                input_sync(wm->input_dev);
+                reads++;
+        } while (reads < cinfo[sp_idx].reads);
+up:
+        return RC_PENDOWN | RC_AGAIN;
+}
+
+static int wm97xx_acc_startup(struct wm97xx *wm)
+{
+        int idx = 0;
+
+        /* check we have a codec */
+        if (wm->ac97 == NULL)
+                return -ENODEV;
+
+        /* Go you big red fire engine */
+        for (idx = 0; idx < ARRAY_SIZE(cinfo); idx++) {
+                if (wm->id != cinfo[idx].id)
+                        continue;
+                sp_idx = idx;
+                if (cont_rate <= cinfo[idx].speed)
+                        break;
+        }
+        wm->acc_rate = cinfo[sp_idx].code;
+        wm->acc_slot = ac97_touch_slot;
+        dev_info(wm->dev,
+                 "mainstone accelerated touchscreen driver, %d samples/sec\n",
+                 cinfo[sp_idx].speed);
+
+        /* codec specific irq config */
+        if (pen_int) {
+                switch (wm->id) {
+                case WM9705_ID2:
+                        wm->pen_irq = IRQ_GPIO(4);
+                        set_irq_type(IRQ_GPIO(4), IRQT_BOTHEDGE);
+                        break;
+                case WM9712_ID2:
+                case WM9713_ID2:
+                        /* enable pen down interrupt */
+                        /* use PEN_DOWN GPIO 13 to assert IRQ on GPIO line 2 */
+                        wm->pen_irq = MAINSTONE_AC97_IRQ;
+                        wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN,
+                                           WM97XX_GPIO_POL_HIGH,
+                                           WM97XX_GPIO_STICKY,
+                                           WM97XX_GPIO_WAKE);
+                        wm97xx_config_gpio(wm, WM97XX_GPIO_2, WM97XX_GPIO_OUT,
+                                           WM97XX_GPIO_POL_HIGH,
+                                           WM97XX_GPIO_NOTSTICKY,
+                                           WM97XX_GPIO_NOWAKE);
+                        break;
+                default:
+                        dev_err(wm->dev,
+                                "pen down irq not supported on this device\n");
+                        pen_int = 0;
+                        break;
+                }
+        }
+
+        return 0;
+}
+
+static void wm97xx_acc_shutdown(struct wm97xx *wm)
+{
+        /* codec specific deconfig */
+        if (pen_int) {
+                switch (wm->id & 0xffff) {
+                case WM9705_ID2:
+                        wm->pen_irq = 0;
+                        break;
+                case WM9712_ID2:
+                case WM9713_ID2:
+                        /* disable interrupt */
+                        wm->pen_irq = 0;
+                        break;
+                }
+        }
+}
+
+static void wm97xx_irq_enable(struct wm97xx *wm, int enable)
+{
+        if (enable)
+                enable_irq(wm->pen_irq);
+        else
+                disable_irq(wm->pen_irq);
+}
+
+static struct wm97xx_mach_ops mainstone_mach_ops = {
+        .acc_enabled = 1,
+        .acc_pen_up = wm97xx_acc_pen_up,
+        .acc_pen_down = wm97xx_acc_pen_down,
+        .acc_startup = wm97xx_acc_startup,
+        .acc_shutdown = wm97xx_acc_shutdown,
+        .irq_enable = wm97xx_irq_enable,
+        .irq_gpio = WM97XX_GPIO_2,
+};
+
+static int mainstone_wm97xx_probe(struct platform_device *pdev)
+{
+        struct wm97xx *wm = platform_get_drvdata(pdev);
+
+        return wm97xx_register_mach_ops(wm, &mainstone_mach_ops);
+}
+
+static int mainstone_wm97xx_remove(struct platform_device *pdev)
+{
+        struct wm97xx *wm = platform_get_drvdata(pdev);
+
+        wm97xx_unregister_mach_ops(wm);
+        return 0;
+}
+
+static struct platform_driver mainstone_wm97xx_driver = {
+        .probe = mainstone_wm97xx_probe,
+        .remove = mainstone_wm97xx_remove,
+        .driver = {
+                .name = "wm97xx-touch",
+        },
+};
+
+static int __init mainstone_wm97xx_init(void)
+{
+        return platform_driver_register(&mainstone_wm97xx_driver);
+}
+
+static void __exit mainstone_wm97xx_exit(void)
+{
+        platform_driver_unregister(&mainstone_wm97xx_driver);
+}
+
+module_init(mainstone_wm97xx_init);
+module_exit(mainstone_wm97xx_exit);
+
+/* Module information */
+MODULE_AUTHOR("Liam Girdwood <liam.girdwood@wolfsonmicro.com>");
+MODULE_DESCRIPTION("wm97xx continuous touch driver for mainstone");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index 607f9933aa1f..bce018e45bce 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -427,10 +427,6 @@ static int ucb1400_detect_irq(struct ucb1400 *ucb)
         unsigned long mask, timeout;
 
         mask = probe_irq_on();
-        if (!mask) {
-                probe_irq_off(mask);
-                return -EBUSY;
-        }
 
         /* Enable the ADC interrupt. */
         ucb1400_reg_write(ucb, UCB_IE_RIS, UCB_IE_ADC);
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index 63f9664a066f..3a0a8ca57076 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -396,9 +396,12 @@ static int gunze_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
 static int dmc_tsc10_init(struct usbtouch_usb *usbtouch)
 {
         struct usb_device *dev = usbtouch->udev;
-        int ret;
-        unsigned char buf[2];
+        int ret = -ENOMEM;
+        unsigned char *buf;
 
+        buf = kmalloc(2, GFP_KERNEL);
+        if (!buf)
+                goto err_nobuf;
         /* reset */
         buf[0] = buf[1] = 0xFF;
         ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0),
@@ -406,9 +409,11 @@ static int dmc_tsc10_init(struct usbtouch_usb *usbtouch)
                               USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
                               0, 0, buf, 2, USB_CTRL_SET_TIMEOUT);
         if (ret < 0)
-                return ret;
-        if (buf[0] != 0x06 || buf[1] != 0x00)
-                return -ENODEV;
+                goto err_out;
+        if (buf[0] != 0x06 || buf[1] != 0x00) {
+                ret = -ENODEV;
+                goto err_out;
+        }
 
         /* set coordinate output rate */
         buf[0] = buf[1] = 0xFF;
@@ -417,20 +422,22 @@ static int dmc_tsc10_init(struct usbtouch_usb *usbtouch)
                               USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
                               TSC10_RATE_150, 0, buf, 2, USB_CTRL_SET_TIMEOUT);
         if (ret < 0)
-                return ret;
+                goto err_out;
         if ((buf[0] != 0x06 || buf[1] != 0x00) &&
-            (buf[0] != 0x15 || buf[1] != 0x01))
-                return -ENODEV;
+            (buf[0] != 0x15 || buf[1] != 0x01)) {
+                ret = -ENODEV;
+                goto err_out;
+        }
 
         /* start sending data */
         ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0),
                               TSC10_CMD_DATA1,
                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
                               0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
-        if (ret < 0)
-                return ret;
-
-        return 0;
+err_out:
+        kfree(buf);
+err_nobuf:
+        return ret;
 }
 
 
diff --git a/drivers/input/touchscreen/wm9705.c b/drivers/input/touchscreen/wm9705.c
new file mode 100644
index 000000000000..978e1a13ffc7
--- /dev/null
+++ b/drivers/input/touchscreen/wm9705.c
@@ -0,0 +1,353 @@
+/*
+ * wm9705.c  --  Codec driver for Wolfson WM9705 AC97 Codec.
+ *
+ * Copyright 2003, 2004, 2005, 2006, 2007 Wolfson Microelectronics PLC.
+ * Author: Liam Girdwood
+ *         liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com
+ * Parts Copyright : Ian Molton <spyro@f2s.com>
+ *                   Andrew Zabolotny <zap@homelink.ru>
+ *                   Russell King <rmk@arm.linux.org.uk>
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+#include <linux/wm97xx.h>
+
+#define TS_NAME                 "wm97xx"
+#define WM9705_VERSION          "1.00"
+#define DEFAULT_PRESSURE        0xb0c0
+
+/*
+ * Module parameters
+ */
+
+/*
+ * Set current used for pressure measurement.
+ *
+ * Set pil = 2 to use 400uA
+ *     pil = 1 to use 200uA and
+ *     pil = 0 to disable pressure measurement.
+ *
+ * This is used to increase the range of values returned by the adc
+ * when measureing touchpanel pressure.
+ */
+static int pil;
+module_param(pil, int, 0);
+MODULE_PARM_DESC(pil, "Set current used for pressure measurement.");
+
+/*
+ * Set threshold for pressure measurement.
+ *
+ * Pen down pressure below threshold is ignored.
+ */
+static int pressure = DEFAULT_PRESSURE & 0xfff;
+module_param(pressure, int, 0);
+MODULE_PARM_DESC(pressure, "Set threshold for pressure measurement.");
+
+/*
+ * Set adc sample delay.
+ *
+ * For accurate touchpanel measurements, some settling time may be
+ * required between the switch matrix applying a voltage across the
+ * touchpanel plate and the ADC sampling the signal.
+ *
+ * This delay can be set by setting delay = n, where n is the array
+ * position of the delay in the array delay_table below.
+ * Long delays > 1ms are supported for completeness, but are not
+ * recommended.
+ */
+static int delay = 4;
+module_param(delay, int, 0);
+MODULE_PARM_DESC(delay, "Set adc sample delay.");
+
+/*
+ * Pen detect comparator threshold.
+ *
+ * 0 to Vmid in 15 steps, 0 = use zero power comparator with Vmid threshold
+ * i.e. 1 =  Vmid/15 threshold
+ *      15 =  Vmid/1 threshold
+ *
+ * Adjust this value if you are having problems with pen detect not
+ * detecting any down events.
+ */
+static int pdd = 8;
+module_param(pdd, int, 0);
+MODULE_PARM_DESC(pdd, "Set pen detect comparator threshold");
+
+/*
+ * Set adc mask function.
+ *
+ * Sources of glitch noise, such as signals driving an LCD display, may feed
+ * through to the touch screen plates and affect measurement accuracy. In
+ * order to minimise this, a signal may be applied to the MASK pin to delay or
+ * synchronise the sampling.
+ *
+ * 0 = No delay or sync
+ * 1 = High on pin stops conversions
+ * 2 = Edge triggered, edge on pin delays conversion by delay param (above)
+ * 3 = Edge triggered, edge on pin starts conversion after delay param
+ */
+static int mask;
+module_param(mask, int, 0);
+MODULE_PARM_DESC(mask, "Set adc mask function.");
+
+/*
+ * ADC sample delay times in uS
+ */
+static const int delay_table[] = {
+        21,    /* 1 AC97 Link frames */
+        42,    /* 2                  */
+        84,    /* 4                  */
+        167,   /* 8                  */
+        333,   /* 16                 */
+        667,   /* 32                 */
+        1000,  /* 48                 */
+        1333,  /* 64                 */
+        2000,  /* 96                 */
+        2667,  /* 128                */
+        3333,  /* 160                */
+        4000,  /* 192                */
+        4667,  /* 224                */
+        5333,  /* 256                */
+        6000,  /* 288                */
+        0      /* No delay, switch matrix always on */
+};
+
+/*
+ * Delay after issuing a POLL command.
+ *
+ * The delay is 3 AC97 link frames + the touchpanel settling delay
+ */
+static inline void poll_delay(int d)
+{
+        udelay(3 * AC97_LINK_FRAME + delay_table[d]);
+}
+
+/*
+ * set up the physical settings of the WM9705
+ */
+static void wm9705_phy_init(struct wm97xx *wm)
+{
+        u16 dig1 = 0, dig2 = WM97XX_RPR;
+
+        /*
+        * mute VIDEO and AUX as they share X and Y touchscreen
+        * inputs on the WM9705
+        */
+        wm97xx_reg_write(wm, AC97_AUX, 0x8000);
+        wm97xx_reg_write(wm, AC97_VIDEO, 0x8000);
+
+        /* touchpanel pressure current*/
+        if (pil == 2) {
+                dig2 |= WM9705_PIL;
+                dev_dbg(wm->dev,
+                        "setting pressure measurement current to 400uA.");
+        } else if (pil)
+                dev_dbg(wm->dev,
+                        "setting pressure measurement current to 200uA.");
+        if (!pil)
+                pressure = 0;
+
+        /* polling mode sample settling delay */
+        if (delay != 4) {
+                if (delay < 0 || delay > 15) {
+                        dev_dbg(wm->dev, "supplied delay out of range.");
+                        delay = 4;
+                }
+        }
+        dig1 &= 0xff0f;
+        dig1 |= WM97XX_DELAY(delay);
+        dev_dbg(wm->dev, "setting adc sample delay to %d u Secs.",
+                delay_table[delay]);
+
+        /* WM9705 pdd */
+        dig2 |= (pdd & 0x000f);
+        dev_dbg(wm->dev, "setting pdd to Vmid/%d", 1 - (pdd & 0x000f));
+
+        /* mask */
+        dig2 |= ((mask & 0x3) << 4);
+
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, dig1);
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2, dig2);
+}
+
+static void wm9705_dig_enable(struct wm97xx *wm, int enable)
+{
+        if (enable) {
+                wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2,
+                                 wm->dig[2] | WM97XX_PRP_DET_DIG);
+                wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD); /* dummy read */
+        } else
+                wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2,
+                                 wm->dig[2] & ~WM97XX_PRP_DET_DIG);
+}
+
+static void wm9705_aux_prepare(struct wm97xx *wm)
+{
+        memcpy(wm->dig_save, wm->dig, sizeof(wm->dig));
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, 0);
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2, WM97XX_PRP_DET_DIG);
+}
+
+static void wm9705_dig_restore(struct wm97xx *wm)
+{
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, wm->dig_save[1]);
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2, wm->dig_save[2]);
+}
+
+static inline int is_pden(struct wm97xx *wm)
+{
+        return wm->dig[2] & WM9705_PDEN;
+}
+
+/*
+ * Read a sample from the WM9705 adc in polling mode.
+ */
+static int wm9705_poll_sample(struct wm97xx *wm, int adcsel, int *sample)
+{
+        int timeout = 5 * delay;
+
+        if (!wm->pen_probably_down) {
+                u16 data = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+                if (!(data & WM97XX_PEN_DOWN))
+                        return RC_PENUP;
+                wm->pen_probably_down = 1;
+        }
+
+        /* set up digitiser */
+        if (adcsel & 0x8000)
+                adcsel = ((adcsel & 0x7fff) + 3) << 12;
+
+        if (wm->mach_ops && wm->mach_ops->pre_sample)
+                wm->mach_ops->pre_sample(adcsel);
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1,
+                         adcsel | WM97XX_POLL | WM97XX_DELAY(delay));
+
+        /* wait 3 AC97 time slots + delay for conversion */
+        poll_delay(delay);
+
+        /* wait for POLL to go low */
+        while ((wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER1) & WM97XX_POLL)
+               && timeout) {
+                udelay(AC97_LINK_FRAME);
+                timeout--;
+        }
+
+        if (timeout == 0) {
+                /* If PDEN is set, we can get a timeout when pen goes up */
+                if (is_pden(wm))
+                        wm->pen_probably_down = 0;
+                else
+                        dev_dbg(wm->dev, "adc sample timeout");
+                return RC_PENUP;
+        }
+
+        *sample = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+        if (wm->mach_ops && wm->mach_ops->post_sample)
+                wm->mach_ops->post_sample(adcsel);
+
+        /* check we have correct sample */
+        if ((*sample & WM97XX_ADCSEL_MASK) != adcsel) {
+                dev_dbg(wm->dev, "adc wrong sample, read %x got %x", adcsel,
+                *sample & WM97XX_ADCSEL_MASK);
+                return RC_PENUP;
+        }
+
+        if (!(*sample & WM97XX_PEN_DOWN)) {
+                wm->pen_probably_down = 0;
+                return RC_PENUP;
+        }
+
+        return RC_VALID;
+}
+
+/*
+ * Sample the WM9705 touchscreen in polling mode
+ */
+static int wm9705_poll_touch(struct wm97xx *wm, struct wm97xx_data *data)
+{
+        int rc;
+
+        rc = wm9705_poll_sample(wm, WM97XX_ADCSEL_X, &data->x);
+        if (rc != RC_VALID)
+                return rc;
+        rc = wm9705_poll_sample(wm, WM97XX_ADCSEL_Y, &data->y);
+        if (rc != RC_VALID)
+                return rc;
+        if (pil) {
+                rc = wm9705_poll_sample(wm, WM97XX_ADCSEL_PRES, &data->p);
+                if (rc != RC_VALID)
+                        return rc;
+        } else
+                data->p = DEFAULT_PRESSURE;
+
+        return RC_VALID;
+}
+
+/*
+ * Enable WM9705 continuous mode, i.e. touch data is streamed across
+ * an AC97 slot
+ */
+static int wm9705_acc_enable(struct wm97xx *wm, int enable)
+{
+        u16 dig1, dig2;
+        int ret = 0;
+
+        dig1 = wm->dig[1];
+        dig2 = wm->dig[2];
+
+        if (enable) {
+                /* continous mode */
+                if (wm->mach_ops->acc_startup &&
+                    (ret = wm->mach_ops->acc_startup(wm)) < 0)
+                        return ret;
+                dig1 &= ~(WM97XX_CM_RATE_MASK | WM97XX_ADCSEL_MASK |
+                          WM97XX_DELAY_MASK | WM97XX_SLT_MASK);
+                dig1 |= WM97XX_CTC | WM97XX_COO | WM97XX_SLEN |
+                        WM97XX_DELAY(delay) |
+                        WM97XX_SLT(wm->acc_slot) |
+                        WM97XX_RATE(wm->acc_rate);
+                if (pil)
+                        dig1 |= WM97XX_ADCSEL_PRES;
+                dig2 |= WM9705_PDEN;
+        } else {
+                dig1 &= ~(WM97XX_CTC | WM97XX_COO | WM97XX_SLEN);
+                dig2 &= ~WM9705_PDEN;
+                if (wm->mach_ops->acc_shutdown)
+                        wm->mach_ops->acc_shutdown(wm);
+        }
+
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, dig1);
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2, dig2);
+
+        return ret;
+}
+
+struct wm97xx_codec_drv wm9705_codec = {
+        .id = WM9705_ID2,
+        .name = "wm9705",
+        .poll_sample = wm9705_poll_sample,
+        .poll_touch = wm9705_poll_touch,
+        .acc_enable = wm9705_acc_enable,
+        .phy_init = wm9705_phy_init,
+        .dig_enable = wm9705_dig_enable,
+        .dig_restore = wm9705_dig_restore,
+        .aux_prepare = wm9705_aux_prepare,
+};
+EXPORT_SYMBOL_GPL(wm9705_codec);
+
+/* Module information */
+MODULE_AUTHOR("Liam Girdwood <liam.girdwood@wolfsonmicro.com>");
+MODULE_DESCRIPTION("WM9705 Touch Screen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/wm9712.c b/drivers/input/touchscreen/wm9712.c
new file mode 100644
index 000000000000..0b6e4cfa6a21
--- /dev/null
+++ b/drivers/input/touchscreen/wm9712.c
@@ -0,0 +1,462 @@
+/*
+ * wm9712.c  --  Codec driver for Wolfson WM9712 AC97 Codecs.
+ *
+ * Copyright 2003, 2004, 2005, 2006, 2007 Wolfson Microelectronics PLC.
+ * Author: Liam Girdwood
+ *         liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com
+ * Parts Copyright : Ian Molton <spyro@f2s.com>
+ *                   Andrew Zabolotny <zap@homelink.ru>
+ *                   Russell King <rmk@arm.linux.org.uk>
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+#include <linux/wm97xx.h>
+
+#define TS_NAME                 "wm97xx"
+#define WM9712_VERSION          "1.00"
+#define DEFAULT_PRESSURE        0xb0c0
+
+/*
+ * Module parameters
+ */
+
+/*
+ * Set internal pull up for pen detect.
+ *
+ * Pull up is in the range 1.02k (least sensitive) to 64k (most sensitive)
+ * i.e. pull up resistance = 64k Ohms / rpu.
+ *
+ * Adjust this value if you are having problems with pen detect not
+ * detecting any down event.
+ */
+static int rpu = 8;
+module_param(rpu, int, 0);
+MODULE_PARM_DESC(rpu, "Set internal pull up resitor for pen detect.");
+
+/*
+ * Set current used for pressure measurement.
+ *
+ * Set pil = 2 to use 400uA
+ *     pil = 1 to use 200uA and
+ *     pil = 0 to disable pressure measurement.
+ *
+ * This is used to increase the range of values returned by the adc
+ * when measureing touchpanel pressure.
+ */
+static int pil;
+module_param(pil, int, 0);
+MODULE_PARM_DESC(pil, "Set current used for pressure measurement.");
+
+/*
+ * Set threshold for pressure measurement.
+ *
+ * Pen down pressure below threshold is ignored.
+ */
+static int pressure = DEFAULT_PRESSURE & 0xfff;
+module_param(pressure, int, 0);
+MODULE_PARM_DESC(pressure, "Set threshold for pressure measurement.");
+
+/*
+ * Set adc sample delay.
+ *
+ * For accurate touchpanel measurements, some settling time may be
+ * required between the switch matrix applying a voltage across the
+ * touchpanel plate and the ADC sampling the signal.
+ *
+ * This delay can be set by setting delay = n, where n is the array
+ * position of the delay in the array delay_table below.
+ * Long delays > 1ms are supported for completeness, but are not
+ * recommended.
+ */
+static int delay = 3;
+module_param(delay, int, 0);
+MODULE_PARM_DESC(delay, "Set adc sample delay.");
+
+/*
+ * Set five_wire = 1 to use a 5 wire touchscreen.
+ *
+ * NOTE: Five wire mode does not allow for readback of pressure.
+ */
+static int five_wire;
+module_param(five_wire, int, 0);
+MODULE_PARM_DESC(five_wire, "Set to '1' to use 5-wire touchscreen.");
+
+/*
+ * Set adc mask function.
+ *
+ * Sources of glitch noise, such as signals driving an LCD display, may feed
+ * through to the touch screen plates and affect measurement accuracy. In
+ * order to minimise this, a signal may be applied to the MASK pin to delay or
+ * synchronise the sampling.
+ *
+ * 0 = No delay or sync
+ * 1 = High on pin stops conversions
+ * 2 = Edge triggered, edge on pin delays conversion by delay param (above)
+ * 3 = Edge triggered, edge on pin starts conversion after delay param
+ */
+static int mask;
+module_param(mask, int, 0);
+MODULE_PARM_DESC(mask, "Set adc mask function.");
+
+/*
+ * Coordinate Polling Enable.
+ *
+ * Set to 1 to enable coordinate polling. e.g. x,y[,p] is sampled together
+ * for every poll.
+ */
+static int coord;
+module_param(coord, int, 0);
+MODULE_PARM_DESC(coord, "Polling coordinate mode");
+
+/*
+ * ADC sample delay times in uS
+ */
+static const int delay_table[] = {
+        21,    /* 1 AC97 Link frames */
+        42,    /* 2 */
+        84,    /* 4 */
+        167,   /* 8 */
+        333,   /* 16 */
+        667,   /* 32 */
+        1000,  /* 48 */
+        1333,  /* 64 */
+        2000,  /* 96 */
+        2667,  /* 128 */
+        3333,  /* 160 */
+        4000,  /* 192 */
+        4667,  /* 224 */
+        5333,  /* 256 */
+        6000,  /* 288 */
+        0      /* No delay, switch matrix always on */
+};
+
+/*
+ * Delay after issuing a POLL command.
+ *
+ * The delay is 3 AC97 link frames + the touchpanel settling delay
+ */
+static inline void poll_delay(int d)
+{
+        udelay(3 * AC97_LINK_FRAME + delay_table[d]);
+}
+
+/*
+ * set up the physical settings of the WM9712
+ */
+static void wm9712_phy_init(struct wm97xx *wm)
+{
+        u16 dig1 = 0;
+        u16 dig2 = WM97XX_RPR | WM9712_RPU(1);
+
+        /* WM9712 rpu */
+        if (rpu) {
+                dig2 &= 0xffc0;
+                dig2 |= WM9712_RPU(rpu);
+                dev_dbg(wm->dev, "setting pen detect pull-up to %d Ohms",
+                        64000 / rpu);
+        }
+
+        /* touchpanel pressure current*/
+        if (pil == 2) {
+                dig2 |= WM9712_PIL;
+                dev_dbg(wm->dev,
+                        "setting pressure measurement current to 400uA.");
+        } else if (pil)
+                dev_dbg(wm->dev,
+                        "setting pressure measurement current to 200uA.");
+        if (!pil)
+                pressure = 0;
+
+        /* WM9712 five wire */
+        if (five_wire) {
+                dig2 |= WM9712_45W;
+                dev_dbg(wm->dev, "setting 5-wire touchscreen mode.");
+        }
+
+        /* polling mode sample settling delay */
+        if (delay < 0 || delay > 15) {
+                dev_dbg(wm->dev, "supplied delay out of range.");
+                delay = 4;
+        }
+        dig1 &= 0xff0f;
+        dig1 |= WM97XX_DELAY(delay);
+        dev_dbg(wm->dev, "setting adc sample delay to %d u Secs.",
+                delay_table[delay]);
+
+        /* mask */
+        dig2 |= ((mask & 0x3) << 6);
+        if (mask) {
+                u16 reg;
+                /* Set GPIO4 as Mask Pin*/
+                reg = wm97xx_reg_read(wm, AC97_MISC_AFE);
+                wm97xx_reg_write(wm, AC97_MISC_AFE, reg | WM97XX_GPIO_4);
+                reg = wm97xx_reg_read(wm, AC97_GPIO_CFG);
+                wm97xx_reg_write(wm, AC97_GPIO_CFG, reg | WM97XX_GPIO_4);
+        }
+
+        /* wait - coord mode */
+        if (coord)
+                dig2 |= WM9712_WAIT;
+
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, dig1);
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2, dig2);
+}
+
+static void wm9712_dig_enable(struct wm97xx *wm, int enable)
+{
+        u16 dig2 = wm->dig[2];
+
+        if (enable) {
+                wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2,
+                                 dig2 | WM97XX_PRP_DET_DIG);
+                wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD); /* dummy read */
+        } else
+                wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2,
+                                 dig2 & ~WM97XX_PRP_DET_DIG);
+}
+
+static void wm9712_aux_prepare(struct wm97xx *wm)
+{
+        memcpy(wm->dig_save, wm->dig, sizeof(wm->dig));
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, 0);
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2, WM97XX_PRP_DET_DIG);
+}
+
+static void wm9712_dig_restore(struct wm97xx *wm)
+{
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, wm->dig_save[1]);
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2, wm->dig_save[2]);
+}
+
+static inline int is_pden(struct wm97xx *wm)
+{
+        return wm->dig[2] & WM9712_PDEN;
+}
+
+/*
+ * Read a sample from the WM9712 adc in polling mode.
+ */
+static int wm9712_poll_sample(struct wm97xx *wm, int adcsel, int *sample)
+{
+        int timeout = 5 * delay;
+
+        if (!wm->pen_probably_down) {
+                u16 data = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+                if (!(data & WM97XX_PEN_DOWN))
+                        return RC_PENUP;
+                wm->pen_probably_down = 1;
+        }
+
+        /* set up digitiser */
+        if (adcsel & 0x8000)
+                adcsel = ((adcsel & 0x7fff) + 3) << 12;
+
+        if (wm->mach_ops && wm->mach_ops->pre_sample)
+                wm->mach_ops->pre_sample(adcsel);
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1,
+                         adcsel | WM97XX_POLL | WM97XX_DELAY(delay));
+
+        /* wait 3 AC97 time slots + delay for conversion */
+        poll_delay(delay);
+
+        /* wait for POLL to go low */
+        while ((wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER1) & WM97XX_POLL)
+               && timeout) {
+                udelay(AC97_LINK_FRAME);
+                timeout--;
+        }
+
+        if (timeout <= 0) {
+                /* If PDEN is set, we can get a timeout when pen goes up */
+                if (is_pden(wm))
+                        wm->pen_probably_down = 0;
+                else
+                        dev_dbg(wm->dev, "adc sample timeout");
+                return RC_PENUP;
+        }
+
+        *sample = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+        if (wm->mach_ops && wm->mach_ops->post_sample)
+                wm->mach_ops->post_sample(adcsel);
+
+        /* check we have correct sample */
+        if ((*sample & WM97XX_ADCSEL_MASK) != adcsel) {
+                dev_dbg(wm->dev, "adc wrong sample, read %x got %x", adcsel,
+                *sample & WM97XX_ADCSEL_MASK);
+                return RC_PENUP;
+        }
+
+        if (!(*sample & WM97XX_PEN_DOWN)) {
+                wm->pen_probably_down = 0;
+                return RC_PENUP;
+        }
+
+        return RC_VALID;
+}
+
+/*
+ * Read a coord from the WM9712 adc in polling mode.
+ */
+static int wm9712_poll_coord(struct wm97xx *wm, struct wm97xx_data *data)
+{
+        int timeout = 5 * delay;
+
+        if (!wm->pen_probably_down) {
+                u16 data_rd = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+                if (!(data_rd & WM97XX_PEN_DOWN))
+                        return RC_PENUP;
+                wm->pen_probably_down = 1;
+        }
+
+        /* set up digitiser */
+        if (wm->mach_ops && wm->mach_ops->pre_sample)
+                wm->mach_ops->pre_sample(WM97XX_ADCSEL_X | WM97XX_ADCSEL_Y);
+
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1,
+                WM97XX_COO | WM97XX_POLL | WM97XX_DELAY(delay));
+
+        /* wait 3 AC97 time slots + delay for conversion and read x */
+        poll_delay(delay);
+        data->x = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+        /* wait for POLL to go low */
+        while ((wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER1) & WM97XX_POLL)
+               && timeout) {
+                udelay(AC97_LINK_FRAME);
+                timeout--;
+        }
+
+        if (timeout <= 0) {
+                /* If PDEN is set, we can get a timeout when pen goes up */
+                if (is_pden(wm))
+                        wm->pen_probably_down = 0;
+                else
+                        dev_dbg(wm->dev, "adc sample timeout");
+                return RC_PENUP;
+        }
+
+        /* read back y data */
+        data->y = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+        if (pil)
+                data->p = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+        else
+                data->p = DEFAULT_PRESSURE;
+
+        if (wm->mach_ops && wm->mach_ops->post_sample)
+                wm->mach_ops->post_sample(WM97XX_ADCSEL_X | WM97XX_ADCSEL_Y);
+
+        /* check we have correct sample */
+        if (!(data->x & WM97XX_ADCSEL_X) || !(data->y & WM97XX_ADCSEL_Y))
+                goto err;
+        if (pil && !(data->p & WM97XX_ADCSEL_PRES))
+                goto err;
+
+        if (!(data->x & WM97XX_PEN_DOWN) || !(data->y & WM97XX_PEN_DOWN)) {
+                wm->pen_probably_down = 0;
+                return RC_PENUP;
+        }
+        return RC_VALID;
+err:
+        return 0;
+}
+
+/*
+ * Sample the WM9712 touchscreen in polling mode
+ */
+static int wm9712_poll_touch(struct wm97xx *wm, struct wm97xx_data *data)
+{
+        int rc;
+
+        if (coord) {
+                rc = wm9712_poll_coord(wm, data);
+                if (rc != RC_VALID)
+                        return rc;
+        } else {
+                rc = wm9712_poll_sample(wm, WM97XX_ADCSEL_X, &data->x);
+                if (rc != RC_VALID)
+                        return rc;
+
+                rc = wm9712_poll_sample(wm, WM97XX_ADCSEL_Y, &data->y);
+                if (rc != RC_VALID)
+                        return rc;
+
+                if (pil && !five_wire) {
+                        rc = wm9712_poll_sample(wm, WM97XX_ADCSEL_PRES,
+                                                &data->p);
+                        if (rc != RC_VALID)
+                                return rc;
+                } else
+                        data->p = DEFAULT_PRESSURE;
+        }
+        return RC_VALID;
+}
+
+/*
+ * Enable WM9712 continuous mode, i.e. touch data is streamed across
+ * an AC97 slot
+ */
+static int wm9712_acc_enable(struct wm97xx *wm, int enable)
+{
+        u16 dig1, dig2;
+        int ret = 0;
+
+        dig1 = wm->dig[1];
+        dig2 = wm->dig[2];
+
+        if (enable) {
+                /* continous mode */
+                if (wm->mach_ops->acc_startup) {
+                        ret = wm->mach_ops->acc_startup(wm);
+                        if (ret < 0)
+                                return ret;
+                }
+                dig1 &= ~(WM97XX_CM_RATE_MASK | WM97XX_ADCSEL_MASK |
+                        WM97XX_DELAY_MASK | WM97XX_SLT_MASK);
+                dig1 |= WM97XX_CTC | WM97XX_COO | WM97XX_SLEN |
+                        WM97XX_DELAY(delay) |
+                        WM97XX_SLT(wm->acc_slot) |
+                        WM97XX_RATE(wm->acc_rate);
+                if (pil)
+                        dig1 |= WM97XX_ADCSEL_PRES;
+                dig2 |= WM9712_PDEN;
+        } else {
+                dig1 &= ~(WM97XX_CTC | WM97XX_COO | WM97XX_SLEN);
+                dig2 &= ~WM9712_PDEN;
+                if (wm->mach_ops->acc_shutdown)
+                        wm->mach_ops->acc_shutdown(wm);
+        }
+
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, dig1);
+        wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2, dig2);
+
+        return 0;
+}
+
+struct wm97xx_codec_drv wm9712_codec = {
+        .id = WM9712_ID2,
+        .name = "wm9712",
+        .poll_sample = wm9712_poll_sample,
+        .poll_touch = wm9712_poll_touch,
+        .acc_enable = wm9712_acc_enable,
+        .phy_init = wm9712_phy_init,
+        .dig_enable = wm9712_dig_enable,
+        .dig_restore = wm9712_dig_restore,
+        .aux_prepare = wm9712_aux_prepare,
+};
+EXPORT_SYMBOL_GPL(wm9712_codec);
+
+/* Module information */
+MODULE_AUTHOR("Liam Girdwood <liam.girdwood@wolfsonmicro.com>");
+MODULE_DESCRIPTION("WM9712 Touch Screen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/wm9713.c b/drivers/input/touchscreen/wm9713.c
new file mode 100644
index 000000000000..01278bd7e65c
--- /dev/null
+++ b/drivers/input/touchscreen/wm9713.c
@@ -0,0 +1,460 @@
+/*
+ * wm9713.c  --  Codec touch driver for Wolfson WM9713 AC97 Codec.
+ *
+ * Copyright 2003, 2004, 2005, 2006, 2007, 2008 Wolfson Microelectronics PLC.
+ * Author: Liam Girdwood
+ *         liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com
+ * Parts Copyright : Ian Molton <spyro@f2s.com>
+ *                   Andrew Zabolotny <zap@homelink.ru>
+ *                   Russell King <rmk@arm.linux.org.uk>
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+#include <linux/wm97xx.h>
+
+#define TS_NAME                 "wm97xx"
+#define WM9713_VERSION          "1.00"
+#define DEFAULT_PRESSURE        0xb0c0
+
+/*
+ * Module parameters
+ */
+
+/*
+ * Set internal pull up for pen detect.
+ *
+ * Pull up is in the range 1.02k (least sensitive) to 64k (most sensitive)
+ * i.e. pull up resistance = 64k Ohms / rpu.
+ *
+ * Adjust this value if you are having problems with pen detect not
+ * detecting any down event.
+ */
+static int rpu = 8;
+module_param(rpu, int, 0);
+MODULE_PARM_DESC(rpu, "Set internal pull up resitor for pen detect.");
+
+/*
+ * Set current used for pressure measurement.
+ *
+ * Set pil = 2 to use 400uA
+ *     pil = 1 to use 200uA and
+ *     pil = 0 to disable pressure measurement.
+ *
+ * This is used to increase the range of values returned by the adc
+ * when measureing touchpanel pressure.
+ */
+static int pil;
+module_param(pil, int, 0);
+MODULE_PARM_DESC(pil, "Set current used for pressure measurement.");
+
+/*
+ * Set threshold for pressure measurement.
+ *
+ * Pen down pressure below threshold is ignored.
+ */
+static int pressure = DEFAULT_PRESSURE & 0xfff;
+module_param(pressure, int, 0);
+MODULE_PARM_DESC(pressure, "Set threshold for pressure measurement.");
+
+/*
+ * Set adc sample delay.
+ *
+ * For accurate touchpanel measurements, some settling time may be
+ * required between the switch matrix applying a voltage across the
+ * touchpanel plate and the ADC sampling the signal.
+ *
+ * This delay can be set by setting delay = n, where n is the array
+ * position of the delay in the array delay_table below.
+ * Long delays > 1ms are supported for completeness, but are not
+ * recommended.
+ */
+static int delay = 4;
+module_param(delay, int, 0);
+MODULE_PARM_DESC(delay, "Set adc sample delay.");
+
+/*
+ * Set adc mask function.
+ *
+ * Sources of glitch noise, such as signals driving an LCD display, may feed
+ * through to the touch screen plates and affect measurement accuracy. In
+ * order to minimise this, a signal may be applied to the MASK pin to delay or
+ * synchronise the sampling.
+ *
+ * 0 = No delay or sync
+ * 1 = High on pin stops conversions
+ * 2 = Edge triggered, edge on pin delays conversion by delay param (above)
+ * 3 = Edge triggered, edge on pin starts conversion after delay param
+ */
+static int mask;
+module_param(mask, int, 0);
+MODULE_PARM_DESC(mask, "Set adc mask function.");
+
+/*
+ * Coordinate Polling Enable.
+ *
+ * Set to 1 to enable coordinate polling. e.g. x,y[,p] is sampled together
+ * for every poll.
+ */
+static int coord;
+module_param(coord, int, 0);
+MODULE_PARM_DESC(coord, "Polling coordinate mode");
+
+/*
+ * ADC sample delay times in uS
+ */
+static const int delay_table[] = {
+        21,    /* 1 AC97 Link frames */
+        42,    /* 2 */
+        84,    /* 4 */
+        167,   /* 8 */
+        333,   /* 16 */
+        667,   /* 32 */
+        1000,  /* 48 */
+        1333,  /* 64 */
+        2000,  /* 96 */
+        2667,  /* 128 */
+        3333,  /* 160 */
+        4000,  /* 192 */
+        4667,  /* 224 */
+        5333,  /* 256 */
+        6000,  /* 288 */
+        0      /* No delay, switch matrix always on */
+};
+
+/*
+ * Delay after issuing a POLL command.
+ *
+ * The delay is 3 AC97 link frames + the touchpanel settling delay
+ */
+static inline void poll_delay(int d)
+{
+        udelay(3 * AC97_LINK_FRAME + delay_table[d]);
+}
+
+/*
+ * set up the physical settings of the WM9713
+ */
+static void wm9713_phy_init(struct wm97xx *wm)
+{
+        u16 dig1 = 0, dig2, dig3;
+
+        /* default values */
+        dig2 = WM97XX_DELAY(4) | WM97XX_SLT(5);
+        dig3 = WM9712_RPU(1);
+
+        /* rpu */
+        if (rpu) {
+                dig3 &= 0xffc0;
+                dig3 |= WM9712_RPU(rpu);
+                dev_info(wm->dev, "setting pen detect pull-up to %d Ohms\n",
+                         64000 / rpu);
+        }
+
+        /* touchpanel pressure */
+        if (pil == 2) {
+                dig3 |= WM9712_PIL;
+                dev_info(wm->dev,
+                         "setting pressure measurement current to 400uA.");
+        } else if (pil)
+                dev_info(wm->dev,
+                         "setting pressure measurement current to 200uA.");
+        if (!pil)
+                pressure = 0;
+
+        /* sample settling delay */
+        if (delay < 0 || delay > 15) {
+                dev_info(wm->dev, "supplied delay out of range.");
+                delay = 4;
+                dev_info(wm->dev, "setting adc sample delay to %d u Secs.",
+                         delay_table[delay]);
+        }
+        dig2 &= 0xff0f;
+        dig2 |= WM97XX_DELAY(delay);
+
+        /* mask */
+        dig3 |= ((mask & 0x3) << 4);
+        if (coord)
+                dig3 |= WM9713_WAIT;
+
+        wm->misc = wm97xx_reg_read(wm, 0x5a);
+
+        wm97xx_reg_write(wm, AC97_WM9713_DIG1, dig1);
+        wm97xx_reg_write(wm, AC97_WM9713_DIG2, dig2);
+        wm97xx_reg_write(wm, AC97_WM9713_DIG3, dig3);
+        wm97xx_reg_write(wm, AC97_GPIO_STICKY, 0x0);
+}
+
+static void wm9713_dig_enable(struct wm97xx *wm, int enable)
+{
+        u16 val;
+
+        if (enable) {
+                val = wm97xx_reg_read(wm, AC97_EXTENDED_MID);
+                wm97xx_reg_write(wm, AC97_EXTENDED_MID, val & 0x7fff);
+                wm97xx_reg_write(wm, AC97_WM9713_DIG3, wm->dig[2] |
+                                 WM97XX_PRP_DET_DIG);
+                wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD); /* dummy read */
+        } else {
+                wm97xx_reg_write(wm, AC97_WM9713_DIG3, wm->dig[2] &
+                                        ~WM97XX_PRP_DET_DIG);
+                val = wm97xx_reg_read(wm, AC97_EXTENDED_MID);
+                wm97xx_reg_write(wm, AC97_EXTENDED_MID, val | 0x8000);
+        }
+}
+
+static void wm9713_dig_restore(struct wm97xx *wm)
+{
+        wm97xx_reg_write(wm, AC97_WM9713_DIG1, wm->dig_save[0]);
+        wm97xx_reg_write(wm, AC97_WM9713_DIG2, wm->dig_save[1]);
+        wm97xx_reg_write(wm, AC97_WM9713_DIG3, wm->dig_save[2]);
+}
+
+static void wm9713_aux_prepare(struct wm97xx *wm)
+{
+        memcpy(wm->dig_save, wm->dig, sizeof(wm->dig));
+        wm97xx_reg_write(wm, AC97_WM9713_DIG1, 0);
+        wm97xx_reg_write(wm, AC97_WM9713_DIG2, 0);
+        wm97xx_reg_write(wm, AC97_WM9713_DIG3, WM97XX_PRP_DET_DIG);
+}
+
+static inline int is_pden(struct wm97xx *wm)
+{
+        return wm->dig[2] & WM9713_PDEN;
+}
+
+/*
+ * Read a sample from the WM9713 adc in polling mode.
+ */
+static int wm9713_poll_sample(struct wm97xx *wm, int adcsel, int *sample)
+{
+        u16 dig1;
+        int timeout = 5 * delay;
+
+        if (!wm->pen_probably_down) {
+                u16 data = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+                if (!(data & WM97XX_PEN_DOWN))
+                        return RC_PENUP;
+                wm->pen_probably_down = 1;
+        }
+
+        /* set up digitiser */
+        if (adcsel & 0x8000)
+                adcsel = 1 << ((adcsel & 0x7fff) + 3);
+
+        dig1 = wm97xx_reg_read(wm, AC97_WM9713_DIG1);
+        dig1 &= ~WM9713_ADCSEL_MASK;
+
+        if (wm->mach_ops && wm->mach_ops->pre_sample)
+                wm->mach_ops->pre_sample(adcsel);
+        wm97xx_reg_write(wm, AC97_WM9713_DIG1, dig1 | adcsel | WM9713_POLL);
+
+        /* wait 3 AC97 time slots + delay for conversion */
+        poll_delay(delay);
+
+        /* wait for POLL to go low */
+        while ((wm97xx_reg_read(wm, AC97_WM9713_DIG1) & WM9713_POLL) &&
+                timeout) {
+                udelay(AC97_LINK_FRAME);
+                timeout--;
+        }
+
+        if (timeout <= 0) {
+                /* If PDEN is set, we can get a timeout when pen goes up */
+                if (is_pden(wm))
+                        wm->pen_probably_down = 0;
+                else
+                        dev_dbg(wm->dev, "adc sample timeout");
+                return RC_PENUP;
+        }
+
+        *sample = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+        if (wm->mach_ops && wm->mach_ops->post_sample)
+                wm->mach_ops->post_sample(adcsel);
+
+        /* check we have correct sample */
+        if ((*sample & WM97XX_ADCSRC_MASK) != ffs(adcsel >> 1) << 12) {
+                dev_dbg(wm->dev, "adc wrong sample, read %x got %x", adcsel,
+                        *sample & WM97XX_ADCSRC_MASK);
+                return RC_PENUP;
+        }
+
+        if (!(*sample & WM97XX_PEN_DOWN)) {
+                wm->pen_probably_down = 0;
+                return RC_PENUP;
+        }
+
+        return RC_VALID;
+}
+
+/*
+ * Read a coordinate from the WM9713 adc in polling mode.
+ */
+static int wm9713_poll_coord(struct wm97xx *wm, struct wm97xx_data *data)
+{
+        u16 dig1;
+        int timeout = 5 * delay;
+
+        if (!wm->pen_probably_down) {
+                u16 val = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+                if (!(val & WM97XX_PEN_DOWN))
+                        return RC_PENUP;
+                wm->pen_probably_down = 1;
+        }
+
+        /* set up digitiser */
+        dig1 = wm97xx_reg_read(wm, AC97_WM9713_DIG1);
+        dig1 &= ~WM9713_ADCSEL_MASK;
+        if (pil)
+                dig1 |= WM9713_ADCSEL_PRES;
+
+        if (wm->mach_ops && wm->mach_ops->pre_sample)
+                wm->mach_ops->pre_sample(WM97XX_ADCSEL_X | WM97XX_ADCSEL_Y);
+        wm97xx_reg_write(wm, AC97_WM9713_DIG1,
+                         dig1 | WM9713_POLL | WM9713_COO);
+
+        /* wait 3 AC97 time slots + delay for conversion */
+        poll_delay(delay);
+        data->x = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+        /* wait for POLL to go low */
+        while ((wm97xx_reg_read(wm, AC97_WM9713_DIG1) & WM9713_POLL)
+               && timeout) {
+                udelay(AC97_LINK_FRAME);
+                timeout--;
+        }
+
+        if (timeout <= 0) {
+                /* If PDEN is set, we can get a timeout when pen goes up */
+                if (is_pden(wm))
+                        wm->pen_probably_down = 0;
+                else
+                        dev_dbg(wm->dev, "adc sample timeout");
+                return RC_PENUP;
+        }
+
+        /* read back data */
+        data->y = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+        if (pil)
+                data->p = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+        else
+                data->p = DEFAULT_PRESSURE;
+
+        if (wm->mach_ops && wm->mach_ops->post_sample)
+                wm->mach_ops->post_sample(WM97XX_ADCSEL_X | WM97XX_ADCSEL_Y);
+
+        /* check we have correct sample */
+        if (!(data->x & WM97XX_ADCSEL_X) || !(data->y & WM97XX_ADCSEL_Y))
+                goto err;
+        if (pil && !(data->p & WM97XX_ADCSEL_PRES))
+                goto err;
+
+        if (!(data->x & WM97XX_PEN_DOWN) || !(data->y & WM97XX_PEN_DOWN)) {
+                wm->pen_probably_down = 0;
+                return RC_PENUP;
+        }
+        return RC_VALID;
+err:
+        return 0;
+}
+
+/*
+ * Sample the WM9713 touchscreen in polling mode
+ */
+static int wm9713_poll_touch(struct wm97xx *wm, struct wm97xx_data *data)
+{
+        int rc;
+
+        if (coord) {
+                rc = wm9713_poll_coord(wm, data);
+                if (rc != RC_VALID)
+                        return rc;
+        } else {
+                rc = wm9713_poll_sample(wm, WM9713_ADCSEL_X, &data->x);
+                if (rc != RC_VALID)
+                        return rc;
+                rc = wm9713_poll_sample(wm, WM9713_ADCSEL_Y, &data->y);
+                if (rc != RC_VALID)
+                        return rc;
+                if (pil) {
+                        rc = wm9713_poll_sample(wm, WM9713_ADCSEL_PRES,
+                                                &data->p);
+                        if (rc != RC_VALID)
+                                return rc;
+                } else
+                        data->p = DEFAULT_PRESSURE;
+        }
+        return RC_VALID;
+}
+
+/*
+ * Enable WM9713 continuous mode, i.e. touch data is streamed across
+ * an AC97 slot
+ */
+static int wm9713_acc_enable(struct wm97xx *wm, int enable)
+{
+        u16 dig1, dig2, dig3;
+        int ret = 0;
+
+        dig1 = wm->dig[0];
+        dig2 = wm->dig[1];
+        dig3 = wm->dig[2];
+
+        if (enable) {
+                /* continous mode */
+                if (wm->mach_ops->acc_startup &&
+                        (ret = wm->mach_ops->acc_startup(wm)) < 0)
+                        return ret;
+
+                dig1 &= ~WM9713_ADCSEL_MASK;
+                dig1 |= WM9713_CTC | WM9713_COO | WM9713_ADCSEL_X |
+                        WM9713_ADCSEL_Y;
+                if (pil)
+                        dig1 |= WM9713_ADCSEL_PRES;
+                dig2 &= ~(WM97XX_DELAY_MASK | WM97XX_SLT_MASK  |
+                        WM97XX_CM_RATE_MASK);
+                dig2 |= WM97XX_SLEN | WM97XX_DELAY(delay) |
+                WM97XX_SLT(wm->acc_slot) | WM97XX_RATE(wm->acc_rate);
+                dig3 |= WM9713_PDEN;
+        } else {
+                dig1 &= ~(WM9713_CTC | WM9713_COO);
+                dig2 &= ~WM97XX_SLEN;
+                dig3 &= ~WM9713_PDEN;
+                if (wm->mach_ops->acc_shutdown)
+                        wm->mach_ops->acc_shutdown(wm);
+        }
+
+        wm97xx_reg_write(wm, AC97_WM9713_DIG1, dig1);
+        wm97xx_reg_write(wm, AC97_WM9713_DIG2, dig2);
+        wm97xx_reg_write(wm, AC97_WM9713_DIG3, dig3);
+
+        return ret;
+}
+
+struct wm97xx_codec_drv wm9713_codec = {
+        .id = WM9713_ID2,
+        .name = "wm9713",
+        .poll_sample = wm9713_poll_sample,
+        .poll_touch = wm9713_poll_touch,
+        .acc_enable = wm9713_acc_enable,
+        .phy_init = wm9713_phy_init,
+        .dig_enable = wm9713_dig_enable,
+        .dig_restore = wm9713_dig_restore,
+        .aux_prepare = wm9713_aux_prepare,
+};
+EXPORT_SYMBOL_GPL(wm9713_codec);
+
+/* Module information */
+MODULE_AUTHOR("Liam Girdwood <liam.girdwood@wolfsonmicro.com>");
+MODULE_DESCRIPTION("WM9713 Touch Screen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
new file mode 100644
index 000000000000..e9c7ea46b6e3
--- /dev/null
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -0,0 +1,829 @@
+/*
+ * wm97xx-core.c  --  Touch screen driver core for Wolfson WM9705, WM9712
+ *                    and WM9713 AC97 Codecs.
+ *
+ * Copyright 2003, 2004, 2005, 2006, 2007, 2008 Wolfson Microelectronics PLC.
+ * Author: Liam Girdwood
+ *         liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com
+ * Parts Copyright : Ian Molton <spyro@f2s.com>
+ *                   Andrew Zabolotny <zap@homelink.ru>
+ *                   Russell King <rmk@arm.linux.org.uk>
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ * Notes:
+ *
+ *  Features:
+ *       - supports WM9705, WM9712, WM9713
+ *       - polling mode
+ *       - continuous mode (arch-dependent)
+ *       - adjustable rpu/dpp settings
+ *       - adjustable pressure current
+ *       - adjustable sample settle delay
+ *       - 4 and 5 wire touchscreens (5 wire is WM9712 only)
+ *       - pen down detection
+ *       - battery monitor
+ *       - sample AUX adcs
+ *       - power management
+ *       - codec GPIO
+ *       - codec event notification
+ * Todo
+ *       - Support for async sampling control for noisy LCDs.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/proc_fs.h>
+#include <linux/pm.h>
+#include <linux/interrupt.h>
+#include <linux/bitops.h>
+#include <linux/workqueue.h>
+#include <linux/wm97xx.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+
+#define TS_NAME                 "wm97xx"
+#define WM_CORE_VERSION         "1.00"
+#define DEFAULT_PRESSURE        0xb0c0
+
+
+/*
+ * Touchscreen absolute values
+ *
+ * These parameters are used to help the input layer discard out of
+ * range readings and reduce jitter etc.
+ *
+ *   o min, max:- indicate the min and max values your touch screen returns
+ *   o fuzz:- use a higher number to reduce jitter
+ *
+ * The default values correspond to Mainstone II in QVGA mode
+ *
+ * Please read
+ * Documentation/input/input-programming.txt for more details.
+ */
+
+static int abs_x[3] = {350, 3900, 5};
+module_param_array(abs_x, int, NULL, 0);
+MODULE_PARM_DESC(abs_x, "Touchscreen absolute X min, max, fuzz");
+
+static int abs_y[3] = {320, 3750, 40};
+module_param_array(abs_y, int, NULL, 0);
+MODULE_PARM_DESC(abs_y, "Touchscreen absolute Y min, max, fuzz");
+
+static int abs_p[3] = {0, 150, 4};
+module_param_array(abs_p, int, NULL, 0);
+MODULE_PARM_DESC(abs_p, "Touchscreen absolute Pressure min, max, fuzz");
+
+/*
+ * wm97xx IO access, all IO locking done by AC97 layer
+ */
+int wm97xx_reg_read(struct wm97xx *wm, u16 reg)
+{
+        if (wm->ac97)
+                return wm->ac97->bus->ops->read(wm->ac97, reg);
+        else
+                return -1;
+}
+EXPORT_SYMBOL_GPL(wm97xx_reg_read);
+
+void wm97xx_reg_write(struct wm97xx *wm, u16 reg, u16 val)
+{
+        /* cache digitiser registers */
+        if (reg >= AC97_WM9713_DIG1 && reg <= AC97_WM9713_DIG3)
+                wm->dig[(reg - AC97_WM9713_DIG1) >> 1] = val;
+
+        /* cache gpio regs */
+        if (reg >= AC97_GPIO_CFG && reg <= AC97_MISC_AFE)
+                wm->gpio[(reg - AC97_GPIO_CFG) >> 1] = val;
+
+        /* wm9713 irq reg */
+        if (reg == 0x5a)
+                wm->misc = val;
+
+        if (wm->ac97)
+                wm->ac97->bus->ops->write(wm->ac97, reg, val);
+}
+EXPORT_SYMBOL_GPL(wm97xx_reg_write);
+
+/**
+ * wm97xx_read_aux_adc - Read the aux adc.
+ * @wm: wm97xx device.
+ * @adcsel: codec ADC to be read
+ *
+ * Reads the selected AUX ADC.
+ */
+
+int wm97xx_read_aux_adc(struct wm97xx *wm, u16 adcsel)
+{
+        int power_adc = 0, auxval;
+        u16 power = 0;
+
+        /* get codec */
+        mutex_lock(&wm->codec_mutex);
+
+        /* When the touchscreen is not in use, we may have to power up
+         * the AUX ADC before we can use sample the AUX inputs->
+         */
+        if (wm->id == WM9713_ID2 &&
+            (power = wm97xx_reg_read(wm, AC97_EXTENDED_MID)) & 0x8000) {
+                power_adc = 1;
+                wm97xx_reg_write(wm, AC97_EXTENDED_MID, power & 0x7fff);
+        }
+
+        /* Prepare the codec for AUX reading */
+        wm->codec->aux_prepare(wm);
+
+        /* Turn polling mode on to read AUX ADC */
+        wm->pen_probably_down = 1;
+        wm->codec->poll_sample(wm, adcsel, &auxval);
+
+        if (power_adc)
+                wm97xx_reg_write(wm, AC97_EXTENDED_MID, power | 0x8000);
+
+        wm->codec->dig_restore(wm);
+
+        wm->pen_probably_down = 0;
+
+        mutex_unlock(&wm->codec_mutex);
+        return auxval & 0xfff;
+}
+EXPORT_SYMBOL_GPL(wm97xx_read_aux_adc);
+
+/**
+ * wm97xx_get_gpio - Get the status of a codec GPIO.
+ * @wm: wm97xx device.
+ * @gpio: gpio
+ *
+ * Get the status of a codec GPIO pin
+ */
+
+enum wm97xx_gpio_status wm97xx_get_gpio(struct wm97xx *wm, u32 gpio)
+{
+        u16 status;
+        enum wm97xx_gpio_status ret;
+
+        mutex_lock(&wm->codec_mutex);
+        status = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
+
+        if (status & gpio)
+                ret = WM97XX_GPIO_HIGH;
+        else
+                ret = WM97XX_GPIO_LOW;
+
+        mutex_unlock(&wm->codec_mutex);
+        return ret;
+}
+EXPORT_SYMBOL_GPL(wm97xx_get_gpio);
+
+/**
+ * wm97xx_set_gpio - Set the status of a codec GPIO.
+ * @wm: wm97xx device.
+ * @gpio: gpio
+ *
+ *
+ * Set the status of a codec GPIO pin
+ */
+
+void wm97xx_set_gpio(struct wm97xx *wm, u32 gpio,
+                                enum wm97xx_gpio_status status)
+{
+        u16 reg;
+
+        mutex_lock(&wm->codec_mutex);
+        reg = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
+
+        if (status & WM97XX_GPIO_HIGH)
+                reg |= gpio;
+        else
+                reg &= ~gpio;
+
+        if (wm->id == WM9712_ID2)
+                wm97xx_reg_write(wm, AC97_GPIO_STATUS, reg << 1);
+        else
+                wm97xx_reg_write(wm, AC97_GPIO_STATUS, reg);
+        mutex_unlock(&wm->codec_mutex);
+}
+EXPORT_SYMBOL_GPL(wm97xx_set_gpio);
+
+/*
+ * Codec GPIO pin configuration, this sets pin direction, polarity,
+ * stickyness and wake up.
+ */
+void wm97xx_config_gpio(struct wm97xx *wm, u32 gpio, enum wm97xx_gpio_dir dir,
+                   enum wm97xx_gpio_pol pol, enum wm97xx_gpio_sticky sticky,
+                   enum wm97xx_gpio_wake wake)
+{
+        u16 reg;
+
+        mutex_lock(&wm->codec_mutex);
+        reg = wm97xx_reg_read(wm, AC97_GPIO_POLARITY);
+
+        if (pol == WM97XX_GPIO_POL_HIGH)
+                reg |= gpio;
+        else
+                reg &= ~gpio;
+
+        wm97xx_reg_write(wm, AC97_GPIO_POLARITY, reg);
+        reg = wm97xx_reg_read(wm, AC97_GPIO_STICKY);
+
+        if (sticky == WM97XX_GPIO_STICKY)
+                reg |= gpio;
+        else
+                reg &= ~gpio;
+
+        wm97xx_reg_write(wm, AC97_GPIO_STICKY, reg);
+        reg = wm97xx_reg_read(wm, AC97_GPIO_WAKEUP);
+
+        if (wake == WM97XX_GPIO_WAKE)
+                reg |= gpio;
+        else
+                reg &= ~gpio;
+
+        wm97xx_reg_write(wm, AC97_GPIO_WAKEUP, reg);
+        reg = wm97xx_reg_read(wm, AC97_GPIO_CFG);
+
+        if (dir == WM97XX_GPIO_IN)
+                reg |= gpio;
+        else
+                reg &= ~gpio;
+
+        wm97xx_reg_write(wm, AC97_GPIO_CFG, reg);
+        mutex_unlock(&wm->codec_mutex);
+}
+EXPORT_SYMBOL_GPL(wm97xx_config_gpio);
+
+/*
+ * Configure the WM97XX_PRP value to use while system is suspended.
+ * If a value other than 0 is set then WM97xx pen detection will be
+ * left enabled in the configured mode while the system is in suspend,
+ * the device has users and suspend has not been disabled via the
+ * wakeup sysfs entries.
+ *
+ * @wm:   WM97xx device to configure
+ * @mode: WM97XX_PRP value to configure while suspended
+ */
+void wm97xx_set_suspend_mode(struct wm97xx *wm, u16 mode)
+{
+        wm->suspend_mode = mode;
+        device_init_wakeup(&wm->input_dev->dev, mode != 0);
+}
+EXPORT_SYMBOL_GPL(wm97xx_set_suspend_mode);
+
+/*
+ * Handle a pen down interrupt.
+ */
+static void wm97xx_pen_irq_worker(struct work_struct *work)
+{
+        struct wm97xx *wm = container_of(work, struct wm97xx, pen_event_work);
+        int pen_was_down = wm->pen_is_down;
+
+        /* do we need to enable the touch panel reader */
+        if (wm->id == WM9705_ID2) {
+                if (wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD) &
+                                        WM97XX_PEN_DOWN)
+                        wm->pen_is_down = 1;
+                else
+                        wm->pen_is_down = 0;
+        } else {
+                u16 status, pol;
+                mutex_lock(&wm->codec_mutex);
+                status = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
+                pol = wm97xx_reg_read(wm, AC97_GPIO_POLARITY);
+
+                if (WM97XX_GPIO_13 & pol & status) {
+                        wm->pen_is_down = 1;
+                        wm97xx_reg_write(wm, AC97_GPIO_POLARITY, pol &
+                                                ~WM97XX_GPIO_13);
+                } else {
+                        wm->pen_is_down = 0;
+                        wm97xx_reg_write(wm, AC97_GPIO_POLARITY, pol |
+                                         WM97XX_GPIO_13);
+                }
+
+                if (wm->id == WM9712_ID2)
+                        wm97xx_reg_write(wm, AC97_GPIO_STATUS, (status &
+                                                ~WM97XX_GPIO_13) << 1);
+                else
+                        wm97xx_reg_write(wm, AC97_GPIO_STATUS, status &
+                                                ~WM97XX_GPIO_13);
+                mutex_unlock(&wm->codec_mutex);
+        }
+
+        /* If the system is not using continuous mode or it provides a
+         * pen down operation then we need to schedule polls while the
+         * pen is down.  Otherwise the machine driver is responsible
+         * for scheduling reads.
+         */
+        if (!wm->mach_ops->acc_enabled || wm->mach_ops->acc_pen_down) {
+                if (wm->pen_is_down && !pen_was_down) {
+                        /* Data is not availiable immediately on pen down */
+                        queue_delayed_work(wm->ts_workq, &wm->ts_reader, 1);
+                }
+
+                /* Let ts_reader report the pen up for debounce. */
+                if (!wm->pen_is_down && pen_was_down)
+                        wm->pen_is_down = 1;
+        }
+
+        if (!wm->pen_is_down && wm->mach_ops->acc_enabled)
+                wm->mach_ops->acc_pen_up(wm);
+
+        wm->mach_ops->irq_enable(wm, 1);
+}
+
+/*
+ * Codec PENDOWN irq handler
+ *
+ * We have to disable the codec interrupt in the handler because it
+ * can take upto 1ms to clear the interrupt source. We schedule a task
+ * in a work queue to do the actual interaction with the chip.  The
+ * interrupt is then enabled again in the slow handler when the source
+ * has been cleared.
+ */
+static irqreturn_t wm97xx_pen_interrupt(int irq, void *dev_id)
+{
+        struct wm97xx *wm = dev_id;
+
+        if (!work_pending(&wm->pen_event_work)) {
+                wm->mach_ops->irq_enable(wm, 0);
+                queue_work(wm->ts_workq, &wm->pen_event_work);
+        }
+
+        return IRQ_HANDLED;
+}
+
+/*
+ * initialise pen IRQ handler and workqueue
+ */
+static int wm97xx_init_pen_irq(struct wm97xx *wm)
+{
+        u16 reg;
+
+        /* If an interrupt is supplied an IRQ enable operation must also be
+         * provided. */
+        BUG_ON(!wm->mach_ops->irq_enable);
+
+        if (request_irq(wm->pen_irq, wm97xx_pen_interrupt,
+                        IRQF_SHARED | IRQF_SAMPLE_RANDOM,
+                        "wm97xx-pen", wm)) {
+                dev_err(wm->dev,
+                        "Failed to register pen down interrupt, polling");
+                wm->pen_irq = 0;
+                return -EINVAL;
+        }
+
+        /* Configure GPIO as interrupt source on WM971x */
+        if (wm->id != WM9705_ID2) {
+                BUG_ON(!wm->mach_ops->irq_gpio);
+                reg = wm97xx_reg_read(wm, AC97_MISC_AFE);
+                wm97xx_reg_write(wm, AC97_MISC_AFE,
+                                reg & ~(wm->mach_ops->irq_gpio));
+                reg = wm97xx_reg_read(wm, 0x5a);
+                wm97xx_reg_write(wm, 0x5a, reg & ~0x0001);
+        }
+
+        return 0;
+}
+
+static int wm97xx_read_samples(struct wm97xx *wm)
+{
+        struct wm97xx_data data;
+        int rc;
+
+        mutex_lock(&wm->codec_mutex);
+
+        if (wm->mach_ops && wm->mach_ops->acc_enabled)
+                rc = wm->mach_ops->acc_pen_down(wm);
+        else
+                rc = wm->codec->poll_touch(wm, &data);
+
+        if (rc & RC_PENUP) {
+                if (wm->pen_is_down) {
+                        wm->pen_is_down = 0;
+                        dev_dbg(wm->dev, "pen up\n");
+                        input_report_abs(wm->input_dev, ABS_PRESSURE, 0);
+                        input_sync(wm->input_dev);
+                } else if (!(rc & RC_AGAIN)) {
+                        /* We need high frequency updates only while
+                        * pen is down, the user never will be able to
+                        * touch screen faster than a few times per
+                        * second... On the other hand, when the user
+                        * is actively working with the touchscreen we
+                        * don't want to lose the quick response. So we
+                        * will slowly increase sleep time after the
+                        * pen is up and quicky restore it to ~one task
+                        * switch when pen is down again.
+                        */
+                        if (wm->ts_reader_interval < HZ / 10)
+                                wm->ts_reader_interval++;
+                }
+
+        } else if (rc & RC_VALID) {
+                dev_dbg(wm->dev,
+                        "pen down: x=%x:%d, y=%x:%d, pressure=%x:%d\n",
+                        data.x >> 12, data.x & 0xfff, data.y >> 12,
+                        data.y & 0xfff, data.p >> 12, data.p & 0xfff);
+                input_report_abs(wm->input_dev, ABS_X, data.x & 0xfff);
+                input_report_abs(wm->input_dev, ABS_Y, data.y & 0xfff);
+                input_report_abs(wm->input_dev, ABS_PRESSURE, data.p & 0xfff);
+                input_sync(wm->input_dev);
+                wm->pen_is_down = 1;
+                wm->ts_reader_interval = wm->ts_reader_min_interval;
+        } else if (rc & RC_PENDOWN) {
+                dev_dbg(wm->dev, "pen down\n");
+                wm->pen_is_down = 1;
+                wm->ts_reader_interval = wm->ts_reader_min_interval;
+        }
+
+        mutex_unlock(&wm->codec_mutex);
+        return rc;
+}
+
+/*
+* The touchscreen sample reader.
+*/
+static void wm97xx_ts_reader(struct work_struct *work)
+{
+        int rc;
+        struct wm97xx *wm = container_of(work, struct wm97xx, ts_reader.work);
+
+        BUG_ON(!wm->codec);
+
+        do {
+                rc = wm97xx_read_samples(wm);
+        } while (rc & RC_AGAIN);
+
+        if (wm->pen_is_down || !wm->pen_irq)
+                queue_delayed_work(wm->ts_workq, &wm->ts_reader,
+                                   wm->ts_reader_interval);
+}
+
+/**
+ * wm97xx_ts_input_open - Open the touch screen input device.
+ * @idev:       Input device to be opened.
+ *
+ * Called by the input sub system to open a wm97xx touchscreen device.
+ * Starts the touchscreen thread and touch digitiser.
+ */
+static int wm97xx_ts_input_open(struct input_dev *idev)
+{
+        struct wm97xx *wm = input_get_drvdata(idev);
+
+        wm->ts_workq = create_singlethread_workqueue("kwm97xx");
+        if (wm->ts_workq == NULL) {
+                dev_err(wm->dev,
+                        "Failed to create workqueue\n");
+                return -EINVAL;
+        }
+
+        /* start digitiser */
+        if (wm->mach_ops && wm->mach_ops->acc_enabled)
+                wm->codec->acc_enable(wm, 1);
+        wm->codec->dig_enable(wm, 1);
+
+        INIT_DELAYED_WORK(&wm->ts_reader, wm97xx_ts_reader);
+        INIT_WORK(&wm->pen_event_work, wm97xx_pen_irq_worker);
+
+        wm->ts_reader_min_interval = HZ >= 100 ? HZ / 100 : 1;
+        if (wm->ts_reader_min_interval < 1)
+                wm->ts_reader_min_interval = 1;
+        wm->ts_reader_interval = wm->ts_reader_min_interval;
+
+        wm->pen_is_down = 0;
+        if (wm->pen_irq)
+                wm97xx_init_pen_irq(wm);
+        else
+                dev_err(wm->dev, "No IRQ specified\n");
+
+        /* If we either don't have an interrupt for pen down events or
+         * failed to acquire it then we need to poll.
+         */
+        if (wm->pen_irq == 0)
+                queue_delayed_work(wm->ts_workq, &wm->ts_reader,
+                                   wm->ts_reader_interval);
+
+        return 0;
+}
+
+/**
+ * wm97xx_ts_input_close - Close the touch screen input device.
+ * @idev:       Input device to be closed.
+ *
+ * Called by the input sub system to close a wm97xx touchscreen
+ * device.  Kills the touchscreen thread and stops the touch
+ * digitiser.
+ */
+
+static void wm97xx_ts_input_close(struct input_dev *idev)
+{
+        struct wm97xx *wm = input_get_drvdata(idev);
+        u16 reg;
+
+        if (wm->pen_irq) {
+                /* Return the interrupt to GPIO usage (disabling it) */
+                if (wm->id != WM9705_ID2) {
+                        BUG_ON(!wm->mach_ops->irq_gpio);
+                        reg = wm97xx_reg_read(wm, AC97_MISC_AFE);
+                        wm97xx_reg_write(wm, AC97_MISC_AFE,
+                                         reg | wm->mach_ops->irq_gpio);
+                }
+
+                free_irq(wm->pen_irq, wm);
+        }
+
+        wm->pen_is_down = 0;
+
+        /* Balance out interrupt disables/enables */
+        if (cancel_work_sync(&wm->pen_event_work))
+                wm->mach_ops->irq_enable(wm, 1);
+
+        /* ts_reader rearms itself so we need to explicitly stop it
+         * before we destroy the workqueue.
+         */
+        cancel_delayed_work_sync(&wm->ts_reader);
+
+        destroy_workqueue(wm->ts_workq);
+
+        /* stop digitiser */
+        wm->codec->dig_enable(wm, 0);
+        if (wm->mach_ops && wm->mach_ops->acc_enabled)
+                wm->codec->acc_enable(wm, 0);
+}
+
+static int wm97xx_probe(struct device *dev)
+{
+        struct wm97xx *wm;
+        int ret = 0, id = 0;
+
+        wm = kzalloc(sizeof(struct wm97xx), GFP_KERNEL);
+        if (!wm)
+                return -ENOMEM;
+        mutex_init(&wm->codec_mutex);
+
+        wm->dev = dev;
+        dev->driver_data = wm;
+        wm->ac97 = to_ac97_t(dev);
+
+        /* check that we have a supported codec */
+        id = wm97xx_reg_read(wm, AC97_VENDOR_ID1);
+        if (id != WM97XX_ID1) {
+                dev_err(dev, "Device with vendor %04x is not a wm97xx\n", id);
+                ret = -ENODEV;
+                goto alloc_err;
+        }
+
+        wm->id = wm97xx_reg_read(wm, AC97_VENDOR_ID2);
+
+        dev_info(wm->dev, "detected a wm97%02x codec\n", wm->id & 0xff);
+
+        switch (wm->id & 0xff) {
+#ifdef CONFIG_TOUCHSCREEN_WM9705
+        case 0x05:
+                wm->codec = &wm9705_codec;
+                break;
+#endif
+#ifdef CONFIG_TOUCHSCREEN_WM9712
+        case 0x12:
+                wm->codec = &wm9712_codec;
+                break;
+#endif
+#ifdef CONFIG_TOUCHSCREEN_WM9713
+        case 0x13:
+                wm->codec = &wm9713_codec;
+                break;
+#endif
+        default:
+                dev_err(wm->dev, "Support for wm97%02x not compiled in.\n",
+                        wm->id & 0xff);
+                ret = -ENODEV;
+                goto alloc_err;
+        }
+
+        wm->input_dev = input_allocate_device();
+        if (wm->input_dev == NULL) {
+                ret = -ENOMEM;
+                goto alloc_err;
+        }
+
+        /* set up touch configuration */
+        wm->input_dev->name = "wm97xx touchscreen";
+        wm->input_dev->open = wm97xx_ts_input_open;
+        wm->input_dev->close = wm97xx_ts_input_close;
+        set_bit(EV_ABS, wm->input_dev->evbit);
+        set_bit(ABS_X, wm->input_dev->absbit);
+        set_bit(ABS_Y, wm->input_dev->absbit);
+        set_bit(ABS_PRESSURE, wm->input_dev->absbit);
+        input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
+                             abs_x[2], 0);
+        input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
+                             abs_y[2], 0);
+        input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
+                             abs_p[2], 0);
+        input_set_drvdata(wm->input_dev, wm);
+        wm->input_dev->dev.parent = dev;
+        ret = input_register_device(wm->input_dev);
+        if (ret < 0)
+                goto dev_alloc_err;
+
+        /* set up physical characteristics */
+        wm->codec->phy_init(wm);
+
+        /* load gpio cache */
+        wm->gpio[0] = wm97xx_reg_read(wm, AC97_GPIO_CFG);
+        wm->gpio[1] = wm97xx_reg_read(wm, AC97_GPIO_POLARITY);
+        wm->gpio[2] = wm97xx_reg_read(wm, AC97_GPIO_STICKY);
+        wm->gpio[3] = wm97xx_reg_read(wm, AC97_GPIO_WAKEUP);
+        wm->gpio[4] = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
+        wm->gpio[5] = wm97xx_reg_read(wm, AC97_MISC_AFE);
+
+        /* register our battery device */
+        wm->battery_dev = platform_device_alloc("wm97xx-battery", -1);
+        if (!wm->battery_dev) {
+                ret = -ENOMEM;
+                goto batt_err;
+        }
+        platform_set_drvdata(wm->battery_dev, wm);
+        wm->battery_dev->dev.parent = dev;
+        ret = platform_device_add(wm->battery_dev);
+        if (ret < 0)
+                goto batt_reg_err;
+
+        /* register our extended touch device (for machine specific
+         * extensions) */
+        wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
+        if (!wm->touch_dev) {
+                ret = -ENOMEM;
+                goto touch_err;
+        }
+        platform_set_drvdata(wm->touch_dev, wm);
+        wm->touch_dev->dev.parent = dev;
+        ret = platform_device_add(wm->touch_dev);
+        if (ret < 0)
+                goto touch_reg_err;
+
+        return ret;
+
+ touch_reg_err:
+        platform_device_put(wm->touch_dev);
+ touch_err:
+        platform_device_unregister(wm->battery_dev);
+        wm->battery_dev = NULL;
+ batt_reg_err:
+        platform_device_put(wm->battery_dev);
+ batt_err:
+        input_unregister_device(wm->input_dev);
+        wm->input_dev = NULL;
+ dev_alloc_err:
+        input_free_device(wm->input_dev);
+ alloc_err:
+        kfree(wm);
+
+        return ret;
+}
+
+static int wm97xx_remove(struct device *dev)
+{
+        struct wm97xx *wm = dev_get_drvdata(dev);
+
+        platform_device_unregister(wm->battery_dev);
+        platform_device_unregister(wm->touch_dev);
+        input_unregister_device(wm->input_dev);
+        kfree(wm);
+
+        return 0;
+}
+
+#ifdef CONFIG_PM
+static int wm97xx_suspend(struct device *dev, pm_message_t state)
+{
+        struct wm97xx *wm = dev_get_drvdata(dev);
+        u16 reg;
+        int suspend_mode;
+
+        if (device_may_wakeup(&wm->input_dev->dev))
+                suspend_mode = wm->suspend_mode;
+        else
+                suspend_mode = 0;
+
+        if (wm->input_dev->users)
+                cancel_delayed_work_sync(&wm->ts_reader);
+
+        /* Power down the digitiser (bypassing the cache for resume) */
+        reg = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER2);
+        reg &= ~WM97XX_PRP_DET_DIG;
+        if (wm->input_dev->users)
+                reg |= suspend_mode;
+        wm->ac97->bus->ops->write(wm->ac97, AC97_WM97XX_DIGITISER2, reg);
+
+        /* WM9713 has an additional power bit - turn it off if there
+         * are no users or if suspend mode is zero. */
+        if (wm->id == WM9713_ID2 &&
+            (!wm->input_dev->users || !suspend_mode)) {
+                reg = wm97xx_reg_read(wm, AC97_EXTENDED_MID) | 0x8000;
+                wm97xx_reg_write(wm, AC97_EXTENDED_MID, reg);
+        }
+
+        return 0;
+}
+
+static int wm97xx_resume(struct device *dev)
+{
+        struct wm97xx *wm = dev_get_drvdata(dev);
+
+        /* restore digitiser and gpios */
+        if (wm->id == WM9713_ID2) {
+                wm97xx_reg_write(wm, AC97_WM9713_DIG1, wm->dig[0]);
+                wm97xx_reg_write(wm, 0x5a, wm->misc);
+                if (wm->input_dev->users) {
+                        u16 reg;
+                        reg = wm97xx_reg_read(wm, AC97_EXTENDED_MID) & 0x7fff;
+                        wm97xx_reg_write(wm, AC97_EXTENDED_MID, reg);
+                }
+        }
+
+        wm97xx_reg_write(wm, AC97_WM9713_DIG2, wm->dig[1]);
+        wm97xx_reg_write(wm, AC97_WM9713_DIG3, wm->dig[2]);
+
+        wm97xx_reg_write(wm, AC97_GPIO_CFG, wm->gpio[0]);
+        wm97xx_reg_write(wm, AC97_GPIO_POLARITY, wm->gpio[1]);
+        wm97xx_reg_write(wm, AC97_GPIO_STICKY, wm->gpio[2]);
+        wm97xx_reg_write(wm, AC97_GPIO_WAKEUP, wm->gpio[3]);
+        wm97xx_reg_write(wm, AC97_GPIO_STATUS, wm->gpio[4]);
+        wm97xx_reg_write(wm, AC97_MISC_AFE, wm->gpio[5]);
+
+        if (wm->input_dev->users && !wm->pen_irq) {
+                wm->ts_reader_interval = wm->ts_reader_min_interval;
+                queue_delayed_work(wm->ts_workq, &wm->ts_reader,
+                                   wm->ts_reader_interval);
+        }
+
+        return 0;
+}
+
+#else
+#define wm97xx_suspend          NULL
+#define wm97xx_resume           NULL
+#endif
+
+/*
+ * Machine specific operations
+ */
+int wm97xx_register_mach_ops(struct wm97xx *wm,
+                             struct wm97xx_mach_ops *mach_ops)
+{
+        mutex_lock(&wm->codec_mutex);
+        if (wm->mach_ops) {
+                mutex_unlock(&wm->codec_mutex);
+                return -EINVAL;
+        }
+        wm->mach_ops = mach_ops;
+        mutex_unlock(&wm->codec_mutex);
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(wm97xx_register_mach_ops);
+
+void wm97xx_unregister_mach_ops(struct wm97xx *wm)
+{
+        mutex_lock(&wm->codec_mutex);
+        wm->mach_ops = NULL;
+        mutex_unlock(&wm->codec_mutex);
+}
+EXPORT_SYMBOL_GPL(wm97xx_unregister_mach_ops);
+
+static struct device_driver wm97xx_driver = {
+        .name =         "ac97",
+        .bus =          &ac97_bus_type,
+        .owner =        THIS_MODULE,
+        .probe =        wm97xx_probe,
+        .remove =       wm97xx_remove,
+        .suspend =      wm97xx_suspend,
+        .resume =       wm97xx_resume,
+};
+
+static int __init wm97xx_init(void)
+{
+        return driver_register(&wm97xx_driver);
+}
+
+static void __exit wm97xx_exit(void)
+{
+        driver_unregister(&wm97xx_driver);
+}
+
+module_init(wm97xx_init);
+module_exit(wm97xx_exit);
+
+/* Module information */
+MODULE_AUTHOR("Liam Girdwood <liam.girdwood@wolfsonmicro.com>");
+MODULE_DESCRIPTION("WM97xx Core - Touch Screen / AUX ADC / GPIO Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/macintosh/mac_hid.c b/drivers/macintosh/mac_hid.c
index 89302309da92..f972ff377b63 100644
--- a/drivers/macintosh/mac_hid.c
+++ b/drivers/macintosh/mac_hid.c
@@ -103,6 +103,9 @@ int mac_hid_mouse_emulate_buttons(int caller, unsigned int keycode, int down)
         return 0;
 }
 
+static struct lock_class_key emumousebtn_event_class;
+static struct lock_class_key emumousebtn_mutex_class;
+
 static int emumousebtn_input_register(void)
 {
         int ret;
@@ -111,6 +114,9 @@ static int emumousebtn_input_register(void)
         if (!emumousebtn)
                 return -ENOMEM;
 
+        lockdep_set_class(emumousebtn->event_lock, &emumousebtn_event_class);
+        lockdep_set_class(emumousebtn->mutex, &emumousebtn_mutex_class);
+
         emumousebtn->name = "Macintosh mouse button emulation";
         emumousebtn->id.bustype = BUS_ADB;
         emumousebtn->id.vendor = 0x0001;
diff --git a/include/linux/input.h b/include/linux/input.h
index cae2c35d1206..28a094fcfe20 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -1025,10 +1025,6 @@ struct ff_effect {
  * @node: used to place the device onto input_dev_list
  */
 struct input_dev {
-        /* private: */
-        void *private;  /* do not use */
-        /* public: */
-
         const char *name;
         const char *phys;
         const char *uniq;
@@ -1238,12 +1234,12 @@ static inline void input_put_device(struct input_dev *dev)
 
 static inline void *input_get_drvdata(struct input_dev *dev)
 {
-        return dev->private;
+        return dev_get_drvdata(&dev->dev);
 }
 
 static inline void input_set_drvdata(struct input_dev *dev, void *data)
 {
-        dev->private = data;
+        dev_set_drvdata(&dev->dev, data);
 }
 
 int __must_check input_register_device(struct input_dev *);
diff --git a/include/linux/keyboard.h b/include/linux/keyboard.h
index 65c2d70853e9..a3c984d780f0 100644
--- a/include/linux/keyboard.h
+++ b/include/linux/keyboard.h
@@ -33,6 +33,7 @@ struct keyboard_notifier_param {
         struct vc_data *vc;     /* VC on which the keyboard press was done */
         int down;               /* Pressure of the key? */
         int shift;              /* Current shift mask */
+        int ledstate;           /* Current led state */
         unsigned int value;     /* keycode, unicode value or keysym */
 };
 
diff --git a/include/linux/serio.h b/include/linux/serio.h
index 9f3825014674..95674d97dabd 100644
--- a/include/linux/serio.h
+++ b/include/linux/serio.h
@@ -211,5 +211,6 @@ static inline void serio_unpin_driver(struct serio *serio)
 #define SERIO_TOUCHWIN  0x33
 #define SERIO_TAOSEVM   0x34
 #define SERIO_FUJITSU   0x35
+#define SERIO_ZHENHUA   0x36
 
 #endif
diff --git a/include/linux/spi/ads7846.h b/include/linux/spi/ads7846.h
index 334d31411629..daf744017a31 100644
--- a/include/linux/spi/ads7846.h
+++ b/include/linux/spi/ads7846.h
@@ -14,7 +14,8 @@ enum ads7846_filter {
 struct ads7846_platform_data {
         u16     model;                  /* 7843, 7845, 7846. */
         u16     vref_delay_usecs;       /* 0 for external vref; etc */
-        int     keep_vref_on:1;         /* set to keep vref on for differential
+        u16     vref_mv;                /* external vref value, milliVolts */
+        bool    keep_vref_on;           /* set to keep vref on for differential
                                          * measurements as well */
 
         /* Settling time of the analog signals; a function of Vcc and the
diff --git a/include/linux/wm97xx.h b/include/linux/wm97xx.h
new file mode 100644
index 000000000000..4d13732e9cf0
--- /dev/null
+++ b/include/linux/wm97xx.h
@@ -0,0 +1,314 @@
+
+/*
+ * Register bits and API for Wolfson WM97xx series of codecs
+ */
+
+#ifndef _LINUX_WM97XX_H
+#define _LINUX_WM97XX_H
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/ac97_codec.h>
+#include <sound/initval.h>
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/input.h>        /* Input device layer */
+#include <linux/platform_device.h>
+
+/*
+ * WM97xx AC97 Touchscreen registers
+ */
+#define AC97_WM97XX_DIGITISER1          0x76
+#define AC97_WM97XX_DIGITISER2          0x78
+#define AC97_WM97XX_DIGITISER_RD        0x7a
+#define AC97_WM9713_DIG1                0x74
+#define AC97_WM9713_DIG2                AC97_WM97XX_DIGITISER1
+#define AC97_WM9713_DIG3                AC97_WM97XX_DIGITISER2
+
+/*
+ * WM97xx register bits
+ */
+#define WM97XX_POLL             0x8000  /* initiate a polling measurement */
+#define WM97XX_ADCSEL_X         0x1000  /* x coord measurement */
+#define WM97XX_ADCSEL_Y         0x2000  /* y coord measurement */
+#define WM97XX_ADCSEL_PRES      0x3000  /* pressure measurement */
+#define WM97XX_ADCSEL_MASK      0x7000
+#define WM97XX_COO              0x0800  /* enable coordinate mode */
+#define WM97XX_CTC              0x0400  /* enable continuous mode */
+#define WM97XX_CM_RATE_93       0x0000  /* 93.75Hz continuous rate */
+#define WM97XX_CM_RATE_187      0x0100  /* 187.5Hz continuous rate */
+#define WM97XX_CM_RATE_375      0x0200  /* 375Hz continuous rate */
+#define WM97XX_CM_RATE_750      0x0300  /* 750Hz continuous rate */
+#define WM97XX_CM_RATE_8K       0x00f0  /* 8kHz continuous rate */
+#define WM97XX_CM_RATE_12K      0x01f0  /* 12kHz continuous rate */
+#define WM97XX_CM_RATE_24K      0x02f0  /* 24kHz continuous rate */
+#define WM97XX_CM_RATE_48K      0x03f0  /* 48kHz continuous rate */
+#define WM97XX_CM_RATE_MASK     0x03f0
+#define WM97XX_RATE(i)          (((i & 3) << 8) | ((i & 4) ? 0xf0 : 0))
+#define WM97XX_DELAY(i)         ((i << 4) & 0x00f0)     /* sample delay times */
+#define WM97XX_DELAY_MASK       0x00f0
+#define WM97XX_SLEN             0x0008  /* slot read back enable */
+#define WM97XX_SLT(i)           ((i - 5) & 0x7) /* panel slot (5-11) */
+#define WM97XX_SLT_MASK         0x0007
+#define WM97XX_PRP_DETW         0x4000  /* detect on, digitise off, wake */
+#define WM97XX_PRP_DET          0x8000  /* detect on, digitise off, no wake */
+#define WM97XX_PRP_DET_DIG      0xc000  /* setect on, digitise on */
+#define WM97XX_RPR              0x2000  /* wake up on pen down */
+#define WM97XX_PEN_DOWN         0x8000  /* pen is down */
+#define WM97XX_ADCSRC_MASK      0x7000  /* ADC source mask */
+
+#define WM97XX_AUX_ID1          0x8001
+#define WM97XX_AUX_ID2          0x8002
+#define WM97XX_AUX_ID3          0x8003
+#define WM97XX_AUX_ID4          0x8004
+
+
+/* WM9712 Bits */
+#define WM9712_45W              0x1000  /* set for 5-wire touchscreen */
+#define WM9712_PDEN             0x0800  /* measure only when pen down */
+#define WM9712_WAIT             0x0200  /* wait until adc is read before next sample */
+#define WM9712_PIL              0x0100  /* current used for pressure measurement. set 400uA else 200uA */
+#define WM9712_MASK_HI          0x0040  /* hi on mask pin (47) stops conversions */
+#define WM9712_MASK_EDGE        0x0080  /* rising/falling edge on pin delays sample */
+#define WM9712_MASK_SYNC        0x00c0  /* rising/falling edge on mask initiates sample */
+#define WM9712_RPU(i)           (i&0x3f)        /* internal pull up on pen detect (64k / rpu) */
+#define WM9712_PD(i)            (0x1 << i)      /* power management */
+
+/* WM9712 Registers */
+#define AC97_WM9712_POWER       0x24
+#define AC97_WM9712_REV         0x58
+
+/* WM9705 Bits */
+#define WM9705_PDEN             0x1000  /* measure only when pen is down */
+#define WM9705_PINV             0x0800  /* inverts sense of pen down output */
+#define WM9705_BSEN             0x0400  /* BUSY flag enable, pin47 is 1 when busy */
+#define WM9705_BINV             0x0200  /* invert BUSY (pin47) output */
+#define WM9705_WAIT             0x0100  /* wait until adc is read before next sample */
+#define WM9705_PIL              0x0080  /* current used for pressure measurement. set 400uA else 200uA */
+#define WM9705_PHIZ             0x0040  /* set PHONE and PCBEEP inputs to high impedance */
+#define WM9705_MASK_HI          0x0010  /* hi on mask stops conversions */
+#define WM9705_MASK_EDGE        0x0020  /* rising/falling edge on pin delays sample */
+#define WM9705_MASK_SYNC        0x0030  /* rising/falling edge on mask initiates sample */
+#define WM9705_PDD(i)           (i & 0x000f)    /* pen detect comparator threshold */
+
+
+/* WM9713 Bits */
+#define WM9713_PDPOL            0x0400  /* Pen down polarity */
+#define WM9713_POLL             0x0200  /* initiate a polling measurement */
+#define WM9713_CTC              0x0100  /* enable continuous mode */
+#define WM9713_ADCSEL_X         0x0002  /* X measurement */
+#define WM9713_ADCSEL_Y         0x0004  /* Y measurement */
+#define WM9713_ADCSEL_PRES      0x0008  /* Pressure measurement */
+#define WM9713_COO              0x0001  /* enable coordinate mode */
+#define WM9713_PDEN             0x0800  /* measure only when pen down */
+#define WM9713_ADCSEL_MASK      0x00fe  /* ADC selection mask */
+#define WM9713_WAIT             0x0200  /* coordinate wait */
+
+/* AUX ADC ID's */
+#define TS_COMP1                0x0
+#define TS_COMP2                0x1
+#define TS_BMON                 0x2
+#define TS_WIPER                0x3
+
+/* ID numbers */
+#define WM97XX_ID1              0x574d
+#define WM9712_ID2              0x4c12
+#define WM9705_ID2              0x4c05
+#define WM9713_ID2              0x4c13
+
+/* Codec GPIO's */
+#define WM97XX_MAX_GPIO         16
+#define WM97XX_GPIO_1           (1 << 1)
+#define WM97XX_GPIO_2           (1 << 2)
+#define WM97XX_GPIO_3           (1 << 3)
+#define WM97XX_GPIO_4           (1 << 4)
+#define WM97XX_GPIO_5           (1 << 5)
+#define WM97XX_GPIO_6           (1 << 6)
+#define WM97XX_GPIO_7           (1 << 7)
+#define WM97XX_GPIO_8           (1 << 8)
+#define WM97XX_GPIO_9           (1 << 9)
+#define WM97XX_GPIO_10          (1 << 10)
+#define WM97XX_GPIO_11          (1 << 11)
+#define WM97XX_GPIO_12          (1 << 12)
+#define WM97XX_GPIO_13          (1 << 13)
+#define WM97XX_GPIO_14          (1 << 14)
+#define WM97XX_GPIO_15          (1 << 15)
+
+
+#define AC97_LINK_FRAME         21      /* time in uS for AC97 link frame */
+
+
+/*---------------- Return codes from sample reading functions ---------------*/
+
+/* More data is available; call the sample gathering function again */
+#define RC_AGAIN                        0x00000001
+/* The returned sample is valid */
+#define RC_VALID                        0x00000002
+/* The pen is up (the first RC_VALID without RC_PENUP means pen is down) */
+#define RC_PENUP                        0x00000004
+/* The pen is down (RC_VALID implies RC_PENDOWN, but sometimes it is helpful
+   to tell the handler that the pen is down but we don't know yet his coords,
+   so the handler should not sleep or wait for pendown irq) */
+#define RC_PENDOWN                      0x00000008
+
+/*
+ * The wm97xx driver provides a private API for writing platform-specific
+ * drivers.
+ */
+
+/* The structure used to return arch specific sampled data into */
+struct wm97xx_data {
+    int x;
+    int y;
+    int p;
+};
+
+/*
+ * Codec GPIO status
+ */
+enum wm97xx_gpio_status {
+    WM97XX_GPIO_HIGH,
+    WM97XX_GPIO_LOW
+};
+
+/*
+ * Codec GPIO direction
+ */
+enum wm97xx_gpio_dir {
+    WM97XX_GPIO_IN,
+    WM97XX_GPIO_OUT
+};
+
+/*
+ * Codec GPIO polarity
+ */
+enum wm97xx_gpio_pol {
+    WM97XX_GPIO_POL_HIGH,
+    WM97XX_GPIO_POL_LOW
+};
+
+/*
+ * Codec GPIO sticky
+ */
+enum wm97xx_gpio_sticky {
+    WM97XX_GPIO_STICKY,
+    WM97XX_GPIO_NOTSTICKY
+};
+
+/*
+ * Codec GPIO wake
+ */
+enum wm97xx_gpio_wake {
+    WM97XX_GPIO_WAKE,
+    WM97XX_GPIO_NOWAKE
+};
+
+/*
+ * Digitiser ioctl commands
+ */
+#define WM97XX_DIG_START        0x1
+#define WM97XX_DIG_STOP         0x2
+#define WM97XX_PHY_INIT         0x3
+#define WM97XX_AUX_PREPARE      0x4
+#define WM97XX_DIG_RESTORE      0x5
+
+struct wm97xx;
+
+extern struct wm97xx_codec_drv wm9705_codec;
+extern struct wm97xx_codec_drv wm9712_codec;
+extern struct wm97xx_codec_drv wm9713_codec;
+
+/*
+ * Codec driver interface - allows mapping to WM9705/12/13 and newer codecs
+ */
+struct wm97xx_codec_drv {
+        u16 id;
+        char *name;
+
+        /* read 1 sample */
+        int (*poll_sample) (struct wm97xx *, int adcsel, int *sample);
+
+        /* read X,Y,[P] in poll */
+        int (*poll_touch) (struct wm97xx *, struct wm97xx_data *);
+
+        int (*acc_enable) (struct wm97xx *, int enable);
+        void (*phy_init) (struct wm97xx *);
+        void (*dig_enable) (struct wm97xx *, int enable);
+        void (*dig_restore) (struct wm97xx *);
+        void (*aux_prepare) (struct wm97xx *);
+};
+
+
+/* Machine specific and accelerated touch operations */
+struct wm97xx_mach_ops {
+
+        /* accelerated touch readback - coords are transmited on AC97 link */
+        int acc_enabled;
+        void (*acc_pen_up) (struct wm97xx *);
+        int (*acc_pen_down) (struct wm97xx *);
+        int (*acc_startup) (struct wm97xx *);
+        void (*acc_shutdown) (struct wm97xx *);
+
+        /* interrupt mask control - required for accelerated operation */
+        void (*irq_enable) (struct wm97xx *, int enable);
+
+        /* GPIO pin used for accelerated operation */
+        int irq_gpio;
+
+        /* pre and post sample - can be used to minimise any analog noise */
+        void (*pre_sample) (int);  /* function to run before sampling */
+        void (*post_sample) (int);  /* function to run after sampling */
+};
+
+struct wm97xx {
+        u16 dig[3], id, gpio[6], misc;  /* Cached codec registers */
+        u16 dig_save[3];                /* saved during aux reading */
+        struct wm97xx_codec_drv *codec; /* attached codec driver*/
+        struct input_dev *input_dev;    /* touchscreen input device */
+        struct snd_ac97 *ac97;          /* ALSA codec access */
+        struct device *dev;             /* ALSA device */
+        struct platform_device *battery_dev;
+        struct platform_device *touch_dev;
+        struct wm97xx_mach_ops *mach_ops;
+        struct mutex codec_mutex;
+        struct delayed_work ts_reader;  /* Used to poll touchscreen */
+        unsigned long ts_reader_interval; /* Current interval for timer */
+        unsigned long ts_reader_min_interval; /* Minimum interval */
+        unsigned int pen_irq;           /* Pen IRQ number in use */
+        struct workqueue_struct *ts_workq;
+        struct work_struct pen_event_work;
+        u16 acc_slot;                   /* AC97 slot used for acc touch data */
+        u16 acc_rate;                   /* acc touch data rate */
+        unsigned pen_is_down:1;         /* Pen is down */
+        unsigned aux_waiting:1;         /* aux measurement waiting */
+        unsigned pen_probably_down:1;   /* used in polling mode */
+        u16 suspend_mode;               /* PRP in suspend mode */
+};
+
+/*
+ * Codec GPIO access (not supported on WM9705)
+ * This can be used to set/get codec GPIO and Virtual GPIO status.
+ */
+enum wm97xx_gpio_status wm97xx_get_gpio(struct wm97xx *wm, u32 gpio);
+void wm97xx_set_gpio(struct wm97xx *wm, u32 gpio,
+                          enum wm97xx_gpio_status status);
+void wm97xx_config_gpio(struct wm97xx *wm, u32 gpio,
+                                     enum wm97xx_gpio_dir dir,
+                                     enum wm97xx_gpio_pol pol,
+                                     enum wm97xx_gpio_sticky sticky,
+                                     enum wm97xx_gpio_wake wake);
+
+void wm97xx_set_suspend_mode(struct wm97xx *wm, u16 mode);
+
+/* codec AC97 IO access */
+int wm97xx_reg_read(struct wm97xx *wm, u16 reg);
+void wm97xx_reg_write(struct wm97xx *wm, u16 reg, u16 val);
+
+/* aux adc readback */
+int wm97xx_read_aux_adc(struct wm97xx *wm, u16 adcsel);
+
+/* machine ops */
+int wm97xx_register_mach_ops(struct wm97xx *, struct wm97xx_mach_ops *);
+void wm97xx_unregister_mach_ops(struct wm97xx *);
+
+#endif