27 files changed, 659 insertions, 318 deletions

diff --git a/drivers/input/joystick/as5011.c b/drivers/input/joystick/as5011.c
index 121cd63d3334..005d852a06e9 100644
--- a/drivers/input/joystick/as5011.c
+++ b/drivers/input/joystick/as5011.c
@@ -234,7 +234,7 @@ static int as5011_probe(struct i2c_client *client,
         int irq;
         int error;
 
-        plat_data = client->dev.platform_data;
+        plat_data = dev_get_platdata(&client->dev);
         if (!plat_data)
                 return -EINVAL;
 
@@ -288,6 +288,7 @@ static int as5011_probe(struct i2c_client *client,
         if (irq < 0) {
                 dev_err(&client->dev,
                         "Failed to get irq number for button gpio\n");
+                error = irq;
                 goto err_free_button_gpio;
         }
 
diff --git a/drivers/input/joystick/maplecontrol.c b/drivers/input/joystick/maplecontrol.c
index 59c10ec5a2a1..8aa6e4c497da 100644
--- a/drivers/input/joystick/maplecontrol.c
+++ b/drivers/input/joystick/maplecontrol.c
@@ -61,7 +61,7 @@ static void dc_pad_callback(struct mapleq *mq)
 
 static int dc_pad_open(struct input_dev *dev)
 {
-        struct dc_pad *pad = dev->dev.platform_data;
+        struct dc_pad *pad = dev_get_platdata(&dev->dev);
 
         maple_getcond_callback(pad->mdev, dc_pad_callback, HZ/20,
                 MAPLE_FUNC_CONTROLLER);
@@ -71,7 +71,7 @@ static int dc_pad_open(struct input_dev *dev)
 
 static void dc_pad_close(struct input_dev *dev)
 {
-        struct dc_pad *pad = dev->dev.platform_data;
+        struct dc_pad *pad = dev_get_platdata(&dev->dev);
 
         maple_getcond_callback(pad->mdev, dc_pad_callback, 0,
                 MAPLE_FUNC_CONTROLLER);
diff --git a/drivers/input/keyboard/imx_keypad.c b/drivers/input/keyboard/imx_keypad.c
index 03c8cc5cb6c1..328cfc1eed95 100644
--- a/drivers/input/keyboard/imx_keypad.c
+++ b/drivers/input/keyboard/imx_keypad.c
@@ -442,12 +442,6 @@ static int imx_keypad_probe(struct platform_device *pdev)
                 return -EINVAL;
         }
 
-        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (res == NULL) {
-                dev_err(&pdev->dev, "no I/O memory defined in platform data\n");
-                return -EINVAL;
-        }
-
         input_dev = devm_input_allocate_device(&pdev->dev);
         if (!input_dev) {
                 dev_err(&pdev->dev, "failed to allocate the input device\n");
@@ -468,6 +462,7 @@ static int imx_keypad_probe(struct platform_device *pdev)
         setup_timer(&keypad->check_matrix_timer,
                     imx_keypad_check_for_events, (unsigned long) keypad);
 
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         keypad->mmio_base = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(keypad->mmio_base))
                 return PTR_ERR(keypad->mmio_base);
diff --git a/drivers/input/keyboard/max7359_keypad.c b/drivers/input/keyboard/max7359_keypad.c
index 7c7af2b01e65..bc2cdaf563fd 100644
--- a/drivers/input/keyboard/max7359_keypad.c
+++ b/drivers/input/keyboard/max7359_keypad.c
@@ -271,7 +271,7 @@ static int max7359_remove(struct i2c_client *client)
         return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int max7359_suspend(struct device *dev)
 {
         struct i2c_client *client = to_i2c_client(dev);
diff --git a/drivers/input/keyboard/nspire-keypad.c b/drivers/input/keyboard/nspire-keypad.c
index 20d872d6f603..b3e3edab6d9f 100644
--- a/drivers/input/keyboard/nspire-keypad.c
+++ b/drivers/input/keyboard/nspire-keypad.c
@@ -171,12 +171,6 @@ static int nspire_keypad_probe(struct platform_device *pdev)
                 return -EINVAL;
         }
 
-        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&pdev->dev, "missing platform resources\n");
-                return -EINVAL;
-        }
-
         keypad = devm_kzalloc(&pdev->dev, sizeof(struct nspire_keypad),
                               GFP_KERNEL);
         if (!keypad) {
@@ -208,6 +202,7 @@ static int nspire_keypad_probe(struct platform_device *pdev)
                 return PTR_ERR(keypad->clk);
         }
 
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         keypad->reg_base = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(keypad->reg_base))
                 return PTR_ERR(keypad->reg_base);
diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c
index f4aa53a1fd69..30acfd49fa6c 100644
--- a/drivers/input/keyboard/omap4-keypad.c
+++ b/drivers/input/keyboard/omap4-keypad.c
@@ -53,21 +53,17 @@
 #define OMAP4_KBD_FULLCODE63_32         0x48
 
 /* OMAP4 bit definitions */
-#define OMAP4_DEF_IRQENABLE_EVENTEN     (1 << 0)
-#define OMAP4_DEF_IRQENABLE_LONGKEY     (1 << 1)
-#define OMAP4_DEF_IRQENABLE_TIMEOUTEN   (1 << 2)
-#define OMAP4_DEF_WUP_EVENT_ENA         (1 << 0)
-#define OMAP4_DEF_WUP_LONG_KEY_ENA      (1 << 1)
-#define OMAP4_DEF_CTRL_NOSOFTMODE       (1 << 1)
-#define OMAP4_DEF_CTRLPTVVALUE          (1 << 2)
-#define OMAP4_DEF_CTRLPTV               (1 << 1)
+#define OMAP4_DEF_IRQENABLE_EVENTEN     BIT(0)
+#define OMAP4_DEF_IRQENABLE_LONGKEY     BIT(1)
+#define OMAP4_DEF_WUP_EVENT_ENA         BIT(0)
+#define OMAP4_DEF_WUP_LONG_KEY_ENA      BIT(1)
+#define OMAP4_DEF_CTRL_NOSOFTMODE       BIT(1)
+#define OMAP4_DEF_CTRL_PTV_SHIFT        2
 
 /* OMAP4 values */
-#define OMAP4_VAL_IRQDISABLE            0x00
-#define OMAP4_VAL_DEBOUNCINGTIME        0x07
-#define OMAP4_VAL_FUNCTIONALCFG         0x1E
-
-#define OMAP4_MASK_IRQSTATUSDISABLE     0xFFFF
+#define OMAP4_VAL_IRQDISABLE            0x0
+#define OMAP4_VAL_DEBOUNCINGTIME        0x7
+#define OMAP4_VAL_PVT                   0x7
 
 enum {
         KBD_REVISION_OMAP4 = 0,
@@ -78,6 +74,7 @@ struct omap4_keypad {
         struct input_dev *input;
 
         void __iomem *base;
+        bool irq_wake_enabled;
         unsigned int irq;
 
         unsigned int rows;
@@ -116,8 +113,22 @@ static void kbd_write_irqreg(struct omap4_keypad *keypad_data,
 }
 
 
-/* Interrupt handler */
-static irqreturn_t omap4_keypad_interrupt(int irq, void *dev_id)
+/* Interrupt handlers */
+static irqreturn_t omap4_keypad_irq_handler(int irq, void *dev_id)
+{
+        struct omap4_keypad *keypad_data = dev_id;
+
+        if (kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS)) {
+                /* Disable interrupts */
+                kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,
+                                 OMAP4_VAL_IRQDISABLE);
+                return IRQ_WAKE_THREAD;
+        }
+
+        return IRQ_NONE;
+}
+
+static irqreturn_t omap4_keypad_irq_thread_fn(int irq, void *dev_id)
 {
         struct omap4_keypad *keypad_data = dev_id;
         struct input_dev *input_dev = keypad_data->input;
@@ -125,10 +136,6 @@ static irqreturn_t omap4_keypad_interrupt(int irq, void *dev_id)
         unsigned int col, row, code, changed;
         u32 *new_state = (u32 *) key_state;
 
-        /* Disable interrupts */
-        kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,
-                         OMAP4_VAL_IRQDISABLE);
-
         *new_state = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE31_0);
         *(new_state + 1) = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE63_32);
 
@@ -175,11 +182,13 @@ static int omap4_keypad_open(struct input_dev *input)
         disable_irq(keypad_data->irq);
 
         kbd_writel(keypad_data, OMAP4_KBD_CTRL,
-                        OMAP4_VAL_FUNCTIONALCFG);
+                        OMAP4_DEF_CTRL_NOSOFTMODE |
+                        (OMAP4_VAL_PVT << OMAP4_DEF_CTRL_PTV_SHIFT));
         kbd_writel(keypad_data, OMAP4_KBD_DEBOUNCINGTIME,
                         OMAP4_VAL_DEBOUNCINGTIME);
+        /* clear pending interrupts */
         kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,
-                        OMAP4_VAL_IRQDISABLE);
+                         kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS));
         kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,
                         OMAP4_DEF_IRQENABLE_EVENTEN |
                                 OMAP4_DEF_IRQENABLE_LONGKEY);
@@ -363,14 +372,15 @@ static int omap4_keypad_probe(struct platform_device *pdev)
                 goto err_free_keymap;
         }
 
-        error = request_irq(keypad_data->irq, omap4_keypad_interrupt,
-                             IRQF_TRIGGER_RISING,
-                             "omap4-keypad", keypad_data);
+        error = request_threaded_irq(keypad_data->irq, omap4_keypad_irq_handler,
+                                     omap4_keypad_irq_thread_fn, 0,
+                                     "omap4-keypad", keypad_data);
         if (error) {
                 dev_err(&pdev->dev, "failed to register interrupt\n");
                 goto err_free_input;
         }
 
+        device_init_wakeup(&pdev->dev, true);
         pm_runtime_put_sync(&pdev->dev);
 
         error = input_register_device(keypad_data->input);
@@ -384,6 +394,7 @@ static int omap4_keypad_probe(struct platform_device *pdev)
 
 err_pm_disable:
         pm_runtime_disable(&pdev->dev);
+        device_init_wakeup(&pdev->dev, false);
         free_irq(keypad_data->irq, keypad_data);
 err_free_keymap:
         kfree(keypad_data->keymap);
@@ -409,6 +420,8 @@ static int omap4_keypad_remove(struct platform_device *pdev)
 
         pm_runtime_disable(&pdev->dev);
 
+        device_init_wakeup(&pdev->dev, false);
+
         input_unregister_device(keypad_data->input);
 
         iounmap(keypad_data->base);
@@ -430,12 +443,46 @@ static const struct of_device_id omap_keypad_dt_match[] = {
 MODULE_DEVICE_TABLE(of, omap_keypad_dt_match);
 #endif
 
+#ifdef CONFIG_PM_SLEEP
+static int omap4_keypad_suspend(struct device *dev)
+{
+        struct platform_device *pdev = to_platform_device(dev);
+        struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);
+        int error;
+
+        if (device_may_wakeup(&pdev->dev)) {
+                error = enable_irq_wake(keypad_data->irq);
+                if (!error)
+                        keypad_data->irq_wake_enabled = true;
+        }
+
+        return 0;
+}
+
+static int omap4_keypad_resume(struct device *dev)
+{
+        struct platform_device *pdev = to_platform_device(dev);
+        struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);
+
+        if (device_may_wakeup(&pdev->dev) && keypad_data->irq_wake_enabled) {
+                disable_irq_wake(keypad_data->irq);
+                keypad_data->irq_wake_enabled = false;
+        }
+
+        return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(omap4_keypad_pm_ops,
+                         omap4_keypad_suspend, omap4_keypad_resume);
+
 static struct platform_driver omap4_keypad_driver = {
         .probe          = omap4_keypad_probe,
         .remove         = omap4_keypad_remove,
         .driver         = {
                 .name   = "omap4-keypad",
                 .owner  = THIS_MODULE,
+                .pm     = &omap4_keypad_pm_ops,
                 .of_match_table = of_match_ptr(omap_keypad_dt_match),
         },
 };
diff --git a/drivers/input/keyboard/qt1070.c b/drivers/input/keyboard/qt1070.c
index 42b773b3125a..6c561ec3cc09 100644
--- a/drivers/input/keyboard/qt1070.c
+++ b/drivers/input/keyboard/qt1070.c
@@ -243,6 +243,32 @@ static int qt1070_remove(struct i2c_client *client)
         return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int qt1070_suspend(struct device *dev)
+{
+        struct i2c_client *client = to_i2c_client(dev);
+        struct qt1070_data *data = i2c_get_clientdata(client);
+
+        if (device_may_wakeup(dev))
+                enable_irq_wake(data->irq);
+
+        return 0;
+}
+
+static int qt1070_resume(struct device *dev)
+{
+        struct i2c_client *client = to_i2c_client(dev);
+        struct qt1070_data *data = i2c_get_clientdata(client);
+
+        if (device_may_wakeup(dev))
+                disable_irq_wake(data->irq);
+
+        return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(qt1070_pm_ops, qt1070_suspend, qt1070_resume);
+
 static const struct i2c_device_id qt1070_id[] = {
         { "qt1070", 0 },
         { },
@@ -253,6 +279,7 @@ static struct i2c_driver qt1070_driver = {
         .driver = {
                 .name   = "qt1070",
                 .owner  = THIS_MODULE,
+                .pm     = &qt1070_pm_ops,
         },
         .id_table       = qt1070_id,
         .probe          = qt1070_probe,
diff --git a/drivers/input/keyboard/spear-keyboard.c b/drivers/input/keyboard/spear-keyboard.c
index 7111124b5362..85ff530d9a91 100644
--- a/drivers/input/keyboard/spear-keyboard.c
+++ b/drivers/input/keyboard/spear-keyboard.c
@@ -191,12 +191,6 @@ static int spear_kbd_probe(struct platform_device *pdev)
         int irq;
         int error;
 
-        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&pdev->dev, "no keyboard resource defined\n");
-                return -EBUSY;
-        }
-
         irq = platform_get_irq(pdev, 0);
         if (irq < 0) {
                 dev_err(&pdev->dev, "not able to get irq for the device\n");
@@ -228,6 +222,7 @@ static int spear_kbd_probe(struct platform_device *pdev)
                 kbd->suspended_rate = pdata->suspended_rate;
         }
 
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         kbd->io_base = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(kbd->io_base))
                 return PTR_ERR(kbd->io_base);
diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c
index b46142f78ef2..9cd20e6905a0 100644
--- a/drivers/input/keyboard/tegra-kbc.c
+++ b/drivers/input/keyboard/tegra-kbc.c
@@ -638,12 +638,6 @@ static int tegra_kbc_probe(struct platform_device *pdev)
         if (!tegra_kbc_check_pin_cfg(kbc, &num_rows))
                 return -EINVAL;
 
-        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&pdev->dev, "failed to get I/O memory\n");
-                return -ENXIO;
-        }
-
         kbc->irq = platform_get_irq(pdev, 0);
         if (kbc->irq < 0) {
                 dev_err(&pdev->dev, "failed to get keyboard IRQ\n");
@@ -658,6 +652,7 @@ static int tegra_kbc_probe(struct platform_device *pdev)
 
         setup_timer(&kbc->timer, tegra_kbc_keypress_timer, (unsigned long)kbc);
 
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         kbc->mmio = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(kbc->mmio))
                 return PTR_ERR(kbc->mmio);
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 0b541cdf9b8e..aa51baaa9b1e 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -647,4 +647,14 @@ config INPUT_SIRFSOC_ONKEY
 
           If unsure, say N.
 
+config INPUT_IDEAPAD_SLIDEBAR
+        tristate "IdeaPad Laptop Slidebar"
+        depends on INPUT
+        depends on SERIO_I8042
+        help
+          Say Y here if you have an IdeaPad laptop with a slidebar.
+
+          To compile this driver as a module, choose M here: the
+          module will be called ideapad_slidebar.
+
 endif
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 829de43a2427..0ebfb6dbf0f7 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -61,3 +61,4 @@ obj-$(CONFIG_INPUT_WISTRON_BTNS)	+= wistron_btns.o
 obj-$(CONFIG_INPUT_WM831X_ON)           += wm831x-on.o
 obj-$(CONFIG_INPUT_XEN_KBDDEV_FRONTEND) += xen-kbdfront.o
 obj-$(CONFIG_INPUT_YEALINK)             += yealink.o
+obj-$(CONFIG_INPUT_IDEAPAD_SLIDEBAR)    += ideapad_slidebar.o
diff --git a/drivers/input/misc/ideapad_slidebar.c b/drivers/input/misc/ideapad_slidebar.c
new file mode 100644
index 000000000000..edfd6239f131
--- /dev/null
+++ b/drivers/input/misc/ideapad_slidebar.c
@@ -0,0 +1,358 @@
+/*
+ * Input driver for slidebars on some Lenovo IdeaPad laptops
+ *
+ * Copyright (C) 2013 Andrey Moiseev <o2g.org.ru@gmail.com>
+ *
+ * Reverse-engineered from Lenovo SlideNav software (SBarHook.dll).
+ *
+ * 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.
+ *
+ * Trademarks are the property of their respective owners.
+ */
+
+/*
+ * Currently tested and works on:
+ *      Lenovo IdeaPad Y550
+ *      Lenovo IdeaPad Y550P
+ *
+ * Other models can be added easily. To test,
+ * load with 'force' parameter set 'true'.
+ *
+ * LEDs blinking and input mode are managed via sysfs,
+ * (hex, unsigned byte value):
+ * /sys/devices/platform/ideapad_slidebar/slidebar_mode
+ *
+ * The value is in byte range, however, I only figured out
+ * how bits 0b10011001 work. Some other bits, probably,
+ * are meaningfull too.
+ *
+ * Possible states:
+ *
+ * STD_INT, ONMOV_INT, OFF_INT, LAST_POLL, OFF_POLL
+ *
+ * Meaning:
+ *           released      touched
+ * STD       'heartbeat'   lights follow the finger
+ * ONMOV     no lights     lights follow the finger
+ * LAST      at last pos   lights follow the finger
+ * OFF       no lights     no lights
+ *
+ * INT       all input events are generated, interrupts are used
+ * POLL      no input events by default, to get them,
+ *           send 0b10000000 (read below)
+ *
+ * Commands: write
+ *
+ * All      |  0b01001 -> STD_INT
+ * possible |  0b10001 -> ONMOV_INT
+ * states   |  0b01000 -> OFF_INT
+ *
+ *                      |  0b0 -> LAST_POLL
+ * STD_INT or ONMOV_INT |
+ *                      |  0b1 -> STD_INT
+ *
+ *                      |  0b0 -> OFF_POLL
+ * OFF_INT or OFF_POLL  |
+ *                      |  0b1 -> OFF_INT
+ *
+ * Any state |   0b10000000 ->  if the slidebar has updated data,
+ *                              produce one input event (last position),
+ *                              switch to respective POLL mode
+ *                              (like 0x0), if not in POLL mode yet.
+ *
+ * Get current state: read
+ *
+ * masked by 0x11 read value means:
+ *
+ * 0x00   LAST
+ * 0x01   STD
+ * 0x10   OFF
+ * 0x11   ONMOV
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/dmi.h>
+#include <linux/spinlock.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/i8042.h>
+#include <linux/serio.h>
+
+#define IDEAPAD_BASE    0xff29
+
+static bool force;
+module_param(force, bool, 0);
+MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
+
+static DEFINE_SPINLOCK(io_lock);
+
+static struct input_dev *slidebar_input_dev;
+static struct platform_device *slidebar_platform_dev;
+
+static u8 slidebar_pos_get(void)
+{
+        u8 res;
+        unsigned long flags;
+
+        spin_lock_irqsave(&io_lock, flags);
+        outb(0xf4, 0xff29);
+        outb(0xbf, 0xff2a);
+        res = inb(0xff2b);
+        spin_unlock_irqrestore(&io_lock, flags);
+
+        return res;
+}
+
+static u8 slidebar_mode_get(void)
+{
+        u8 res;
+        unsigned long flags;
+
+        spin_lock_irqsave(&io_lock, flags);
+        outb(0xf7, 0xff29);
+        outb(0x8b, 0xff2a);
+        res = inb(0xff2b);
+        spin_unlock_irqrestore(&io_lock, flags);
+
+        return res;
+}
+
+static void slidebar_mode_set(u8 mode)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&io_lock, flags);
+        outb(0xf7, 0xff29);
+        outb(0x8b, 0xff2a);
+        outb(mode, 0xff2b);
+        spin_unlock_irqrestore(&io_lock, flags);
+}
+
+static bool slidebar_i8042_filter(unsigned char data, unsigned char str,
+                                  struct serio *port)
+{
+        static bool extended = false;
+
+        /* We are only interested in data coming form KBC port */
+        if (str & I8042_STR_AUXDATA)
+                return false;
+
+        /* Scancodes: e03b on move, e0bb on release. */
+        if (data == 0xe0) {
+                extended = true;
+                return true;
+        }
+
+        if (!extended)
+                return false;
+
+        extended = false;
+
+        if (likely((data & 0x7f) != 0x3b)) {
+                serio_interrupt(port, 0xe0, 0);
+                return false;
+        }
+
+        if (data & 0x80) {
+                input_report_key(slidebar_input_dev, BTN_TOUCH, 0);
+        } else {
+                input_report_key(slidebar_input_dev, BTN_TOUCH, 1);
+                input_report_abs(slidebar_input_dev, ABS_X, slidebar_pos_get());
+        }
+        input_sync(slidebar_input_dev);
+
+        return true;
+}
+
+static ssize_t show_slidebar_mode(struct device *dev,
+                                  struct device_attribute *attr,
+                                  char *buf)
+{
+        return sprintf(buf, "%x\n", slidebar_mode_get());
+}
+
+static ssize_t store_slidebar_mode(struct device *dev,
+                                   struct device_attribute *attr,
+                                   const char *buf, size_t count)
+{
+        u8 mode;
+        int error;
+
+        error = kstrtou8(buf, 0, &mode);
+        if (error)
+                return error;
+
+        slidebar_mode_set(mode);
+
+        return count;
+}
+
+static DEVICE_ATTR(slidebar_mode, S_IWUSR | S_IRUGO,
+                   show_slidebar_mode, store_slidebar_mode);
+
+static struct attribute *ideapad_attrs[] = {
+        &dev_attr_slidebar_mode.attr,
+        NULL
+};
+
+static struct attribute_group ideapad_attr_group = {
+        .attrs = ideapad_attrs
+};
+
+static const struct attribute_group *ideapad_attr_groups[] = {
+        &ideapad_attr_group,
+        NULL
+};
+
+static int __init ideapad_probe(struct platform_device* pdev)
+{
+        int err;
+
+        if (!request_region(IDEAPAD_BASE, 3, "ideapad_slidebar")) {
+                dev_err(&pdev->dev, "IO ports are busy\n");
+                return -EBUSY;
+        }
+
+        slidebar_input_dev = input_allocate_device();
+        if (!slidebar_input_dev) {
+                dev_err(&pdev->dev, "Failed to allocate input device\n");
+                err = -ENOMEM;
+                goto err_release_ports;
+        }
+
+        slidebar_input_dev->name = "IdeaPad Slidebar";
+        slidebar_input_dev->id.bustype = BUS_HOST;
+        slidebar_input_dev->dev.parent = &pdev->dev;
+        input_set_capability(slidebar_input_dev, EV_KEY, BTN_TOUCH);
+        input_set_capability(slidebar_input_dev, EV_ABS, ABS_X);
+        input_set_abs_params(slidebar_input_dev, ABS_X, 0, 0xff, 0, 0);
+
+        err = i8042_install_filter(slidebar_i8042_filter);
+        if (err) {
+                dev_err(&pdev->dev,
+                        "Failed to install i8042 filter: %d\n", err);
+                goto err_free_dev;
+        }
+
+        err = input_register_device(slidebar_input_dev);
+        if (err) {
+                dev_err(&pdev->dev,
+                        "Failed to register input device: %d\n", err);
+                goto err_remove_filter;
+        }
+
+        return 0;
+
+err_remove_filter:
+        i8042_remove_filter(slidebar_i8042_filter);
+err_free_dev:
+        input_free_device(slidebar_input_dev);
+err_release_ports:
+        release_region(IDEAPAD_BASE, 3);
+        return err;
+}
+
+static int ideapad_remove(struct platform_device *pdev)
+{
+        i8042_remove_filter(slidebar_i8042_filter);
+        input_unregister_device(slidebar_input_dev);
+        release_region(IDEAPAD_BASE, 3);
+
+        return 0;
+}
+
+static struct platform_driver slidebar_drv = {
+        .driver = {
+                .name = "ideapad_slidebar",
+                .owner = THIS_MODULE,
+        },
+        .remove = ideapad_remove,
+};
+
+static int __init ideapad_dmi_check(const struct dmi_system_id *id)
+{
+        pr_info("Laptop model '%s'\n", id->ident);
+        return 1;
+}
+
+static const struct dmi_system_id ideapad_dmi[] __initconst = {
+        {
+                .ident = "Lenovo IdeaPad Y550",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "20017"),
+                        DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo IdeaPad Y550")
+                },
+                .callback = ideapad_dmi_check
+        },
+        {
+                .ident = "Lenovo IdeaPad Y550P",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "20035"),
+                        DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo IdeaPad Y550P")
+                },
+                .callback = ideapad_dmi_check
+        },
+        { NULL, }
+};
+MODULE_DEVICE_TABLE(dmi, ideapad_dmi);
+
+static int __init slidebar_init(void)
+{
+        int err;
+
+        if (!force && !dmi_check_system(ideapad_dmi)) {
+                pr_err("DMI does not match\n");
+                return -ENODEV;
+        }
+
+        slidebar_platform_dev = platform_device_alloc("ideapad_slidebar", -1);
+        if (!slidebar_platform_dev) {
+                pr_err("Not enough memory\n");
+                return -ENOMEM;
+        }
+
+        slidebar_platform_dev->dev.groups = ideapad_attr_groups;
+
+        err = platform_device_add(slidebar_platform_dev);
+        if (err) {
+                pr_err("Failed to register platform device\n");
+                goto err_free_dev;
+        }
+
+        err = platform_driver_probe(&slidebar_drv, ideapad_probe);
+        if (err) {
+                pr_err("Failed to register platform driver\n");
+                goto err_delete_dev;
+        }
+
+        return 0;
+
+err_delete_dev:
+        platform_device_del(slidebar_platform_dev);
+err_free_dev:
+        platform_device_put(slidebar_platform_dev);
+        return err;
+}
+
+static void __exit slidebar_exit(void)
+{
+        platform_device_unregister(slidebar_platform_dev);
+        platform_driver_unregister(&slidebar_drv);
+}
+
+module_init(slidebar_init);
+module_exit(slidebar_exit);
+
+MODULE_AUTHOR("Andrey Moiseev <o2g.org.ru@gmail.com>");
+MODULE_DESCRIPTION("Slidebar input support for some Lenovo IdeaPad laptops");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/pwm-beeper.c b/drivers/input/misc/pwm-beeper.c
index a37f0c909aba..2ff4d1c78ab8 100644
--- a/drivers/input/misc/pwm-beeper.c
+++ b/drivers/input/misc/pwm-beeper.c
@@ -143,7 +143,7 @@ static int pwm_beeper_remove(struct platform_device *pdev)
         return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int pwm_beeper_suspend(struct device *dev)
 {
         struct pwm_beeper *beeper = dev_get_drvdata(dev);
diff --git a/drivers/input/misc/twl6040-vibra.c b/drivers/input/misc/twl6040-vibra.c
index 0c2dfc8e9691..7864b0c3ebb3 100644
--- a/drivers/input/misc/twl6040-vibra.c
+++ b/drivers/input/misc/twl6040-vibra.c
@@ -257,7 +257,6 @@ static SIMPLE_DEV_PM_OPS(twl6040_vibra_pm_ops, twl6040_vibra_suspend, NULL);
 
 static int twl6040_vibra_probe(struct platform_device *pdev)
 {
-        struct twl6040_vibra_data *pdata = pdev->dev.platform_data;
         struct device *twl6040_core_dev = pdev->dev.parent;
         struct device_node *twl6040_core_node = NULL;
         struct vibra_info *info;
@@ -270,8 +269,8 @@ static int twl6040_vibra_probe(struct platform_device *pdev)
                                                  "vibra");
 #endif
 
-        if (!pdata && !twl6040_core_node) {
-                dev_err(&pdev->dev, "platform_data not available\n");
+        if (!twl6040_core_node) {
+                dev_err(&pdev->dev, "parent of node is missing?\n");
                 return -EINVAL;
         }
 
@@ -284,27 +283,17 @@ static int twl6040_vibra_probe(struct platform_device *pdev)
         info->dev = &pdev->dev;
 
         info->twl6040 = dev_get_drvdata(pdev->dev.parent);
-        if (pdata) {
-                info->vibldrv_res = pdata->vibldrv_res;
-                info->vibrdrv_res = pdata->vibrdrv_res;
-                info->viblmotor_res = pdata->viblmotor_res;
-                info->vibrmotor_res = pdata->vibrmotor_res;
-                vddvibl_uV = pdata->vddvibl_uV;
-                vddvibr_uV = pdata->vddvibr_uV;
-        } else {
-                of_property_read_u32(twl6040_core_node, "ti,vibldrv-res",
-                                     &info->vibldrv_res);
-                of_property_read_u32(twl6040_core_node, "ti,vibrdrv-res",
-                                     &info->vibrdrv_res);
-                of_property_read_u32(twl6040_core_node, "ti,viblmotor-res",
-                                     &info->viblmotor_res);
-                of_property_read_u32(twl6040_core_node, "ti,vibrmotor-res",
-                                     &info->vibrmotor_res);
-                of_property_read_u32(twl6040_core_node, "ti,vddvibl-uV",
-                                     &vddvibl_uV);
-                of_property_read_u32(twl6040_core_node, "ti,vddvibr-uV",
-                                     &vddvibr_uV);
-        }
+
+        of_property_read_u32(twl6040_core_node, "ti,vibldrv-res",
+                             &info->vibldrv_res);
+        of_property_read_u32(twl6040_core_node, "ti,vibrdrv-res",
+                             &info->vibrdrv_res);
+        of_property_read_u32(twl6040_core_node, "ti,viblmotor-res",
+                             &info->viblmotor_res);
+        of_property_read_u32(twl6040_core_node, "ti,vibrmotor-res",
+                             &info->vibrmotor_res);
+        of_property_read_u32(twl6040_core_node, "ti,vddvibl-uV", &vddvibl_uV);
+        of_property_read_u32(twl6040_core_node, "ti,vddvibr-uV", &vddvibr_uV);
 
         if ((!info->vibldrv_res && !info->viblmotor_res) ||
             (!info->vibrdrv_res && !info->vibrmotor_res)) {
@@ -334,8 +323,8 @@ static int twl6040_vibra_probe(struct platform_device *pdev)
          * When booted with Device tree the regulators are attached to the
          * parent device (twl6040 MFD core)
          */
-        ret = regulator_bulk_get(pdata ? info->dev : twl6040_core_dev,
-                                 ARRAY_SIZE(info->supplies), info->supplies);
+        ret = regulator_bulk_get(twl6040_core_dev, ARRAY_SIZE(info->supplies),
+                                 info->supplies);
         if (ret) {
                 dev_err(info->dev, "couldn't get regulators %d\n", ret);
                 return ret;
diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c
index 56536f4b9572..b6505454bcc4 100644
--- a/drivers/input/misc/wistron_btns.c
+++ b/drivers/input/misc/wistron_btns.c
@@ -46,7 +46,6 @@
 MODULE_AUTHOR("Miloslav Trmac <mitr@volny.cz>");
 MODULE_DESCRIPTION("Wistron laptop button driver");
 MODULE_LICENSE("GPL v2");
-MODULE_VERSION("0.3");
 
 static bool force; /* = 0; */
 module_param(force, bool, 0);
@@ -563,7 +562,7 @@ static struct key_entry keymap_wistron_md96500[] __initdata = {
         { KE_KEY, 0x36, {KEY_WWW} },
         { KE_WIFI, 0x30 },
         { KE_BLUETOOTH, 0x44 },
-        { KE_END, FE_UNTESTED }
+        { KE_END, 0 }
 };
 
 static struct key_entry keymap_wistron_generic[] __initdata = {
@@ -635,7 +634,7 @@ static struct key_entry keymap_prestigio[] __initdata = {
  * a list of buttons and their key codes (reported when loading this module
  * with force=1) and the output of dmidecode to $MODULE_AUTHOR.
  */
-static const struct dmi_system_id __initconst dmi_ids[] = {
+static const struct dmi_system_id dmi_ids[] __initconst = {
         {
                 /* Fujitsu-Siemens Amilo Pro V2000 */
                 .callback = dmi_matched,
@@ -972,6 +971,7 @@ static const struct dmi_system_id __initconst dmi_ids[] = {
         },
         { NULL, }
 };
+MODULE_DEVICE_TABLE(dmi, dmi_ids);
 
 /* Copy the good keymap, as the original ones are free'd */
 static int __init copy_keymap(void)
diff --git a/drivers/input/mouse/lifebook.c b/drivers/input/mouse/lifebook.c
index 2c4db636de6c..23222dd5a66f 100644
--- a/drivers/input/mouse/lifebook.c
+++ b/drivers/input/mouse/lifebook.c
@@ -44,7 +44,7 @@ static int lifebook_set_6byte_proto(const struct dmi_system_id *d)
         return 1;
 }
 
-static const struct dmi_system_id __initconst lifebook_dmi_table[] = {
+static const struct dmi_system_id lifebook_dmi_table[] __initconst = {
         {
                 /* FLORA-ie 55mi */
                 .matches = {
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index b2420ae19e14..26386f9d2569 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -1433,7 +1433,7 @@ static int synaptics_reconnect(struct psmouse *psmouse)
 
 static bool impaired_toshiba_kbc;
 
-static const struct dmi_system_id __initconst toshiba_dmi_table[] = {
+static const struct dmi_system_id toshiba_dmi_table[] __initconst = {
 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
         {
                 /* Toshiba Satellite */
@@ -1472,7 +1472,7 @@ static const struct dmi_system_id __initconst toshiba_dmi_table[] = {
 
 static bool broken_olpc_ec;
 
-static const struct dmi_system_id __initconst olpc_dmi_table[] = {
+static const struct dmi_system_id olpc_dmi_table[] __initconst = {
 #if defined(CONFIG_DMI) && defined(CONFIG_OLPC)
         {
                 /* OLPC XO-1 or XO-1.5 */
diff --git a/drivers/input/serio/arc_ps2.c b/drivers/input/serio/arc_ps2.c
index 3fb7727c8ea5..8024a6d7fccb 100644
--- a/drivers/input/serio/arc_ps2.c
+++ b/drivers/input/serio/arc_ps2.c
@@ -189,12 +189,6 @@ static int arc_ps2_probe(struct platform_device *pdev)
         int irq;
         int error, id, i;
 
-        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&pdev->dev, "no IO memory defined\n");
-                return -EINVAL;
-        }
-
         irq = platform_get_irq_byname(pdev, "arc_ps2_irq");
         if (irq < 0) {
                 dev_err(&pdev->dev, "no IRQ defined\n");
@@ -208,6 +202,7 @@ static int arc_ps2_probe(struct platform_device *pdev)
                 return -ENOMEM;
         }
 
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         arc_ps2->addr = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(arc_ps2->addr))
                 return PTR_ERR(arc_ps2->addr);
diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h
index 3452708fbe3b..fc080beffedc 100644
--- a/drivers/input/serio/i8042.h
+++ b/drivers/input/serio/i8042.h
@@ -41,30 +41,6 @@
 #define I8042_CTL_TIMEOUT       10000
 
 /*
- * Status register bits.
- */
-
-#define I8042_STR_PARITY        0x80
-#define I8042_STR_TIMEOUT       0x40
-#define I8042_STR_AUXDATA       0x20
-#define I8042_STR_KEYLOCK       0x10
-#define I8042_STR_CMDDAT        0x08
-#define I8042_STR_MUXERR        0x04
-#define I8042_STR_IBF           0x02
-#define I8042_STR_OBF           0x01
-
-/*
- * Control register bits.
- */
-
-#define I8042_CTR_KBDINT        0x01
-#define I8042_CTR_AUXINT        0x02
-#define I8042_CTR_IGNKEYLOCK    0x08
-#define I8042_CTR_KBDDIS        0x10
-#define I8042_CTR_AUXDIS        0x20
-#define I8042_CTR_XLATE         0x40
-
-/*
  * Return codes.
  */
 
diff --git a/drivers/input/serio/olpc_apsp.c b/drivers/input/serio/olpc_apsp.c
index 818aa466b5d2..51b1d40cc286 100644
--- a/drivers/input/serio/olpc_apsp.c
+++ b/drivers/input/serio/olpc_apsp.c
@@ -183,9 +183,6 @@ static int olpc_apsp_probe(struct platform_device *pdev)
 
         np = pdev->dev.of_node;
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res)
-                return -ENOENT;
-
         priv->base = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(priv->base)) {
                 dev_err(&pdev->dev, "Failed to map WTM registers\n");
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index aaf23aeae2ea..79b69ea47f74 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -221,39 +221,6 @@ static int wacom_calc_hid_res(int logical_extents, int physical_extents,
         return logical_extents / physical_extents;
 }
 
-/*
- * The physical dimension specified by the HID descriptor is likely not in
- * the "100th of a mm" units expected by wacom_calculate_touch_res. This
- * function adjusts the value of [xy]_phy based on the unit and exponent
- * provided by the HID descriptor. If an error occurs durring conversion
- * (e.g. from the unit being left unspecified) [xy]_phy is not modified.
- */
-static void wacom_fix_phy_from_hid(struct wacom_features *features)
-{
-        int xres = wacom_calc_hid_res(features->x_max, features->x_phy,
-                                        features->unit, features->unitExpo);
-        int yres = wacom_calc_hid_res(features->y_max, features->y_phy,
-                                        features->unit, features->unitExpo);
-
-        if (xres > 0 && yres > 0) {
-                features->x_phy = (100 * features->x_max) / xres;
-                features->y_phy = (100 * features->y_max) / yres;
-        }
-}
-
-/*
- * Static values for max X/Y and resolution of Pen interface is stored in
- * features. This mean physical size of active area can be computed.
- * This is useful to do when Pen and Touch have same active area of tablet.
- * This means for Touch device, we only need to find max X/Y value and we
- * have enough information to compute resolution of touch.
- */
-static void wacom_set_phy_from_res(struct wacom_features *features)
-{
-        features->x_phy = (features->x_max * 100) / features->x_resolution;
-        features->y_phy = (features->y_max * 100) / features->y_resolution;
-}
-
 static int wacom_parse_logical_collection(unsigned char *report,
                                           struct wacom_features *features)
 {
@@ -265,8 +232,6 @@ static int wacom_parse_logical_collection(unsigned char *report,
                 features->pktlen = WACOM_PKGLEN_BBTOUCH3;
                 features->device_type = BTN_TOOL_FINGER;
 
-                wacom_set_phy_from_res(features);
-
                 features->x_max = features->y_max =
                         get_unaligned_le16(&report[10]);
 
@@ -640,9 +605,6 @@ static int wacom_retrieve_hid_descriptor(struct usb_interface *intf,
                 }
         }
         error = wacom_parse_hid(intf, hid_desc, features);
-        if (error)
-                goto out;
-        wacom_fix_phy_from_hid(features);
 
  out:
         return error;
@@ -1228,7 +1190,6 @@ static void wacom_wireless_work(struct work_struct *work)
                         *((struct wacom_features *)id->driver_info);
                 wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3;
                 wacom_wac2->features.device_type = BTN_TOOL_FINGER;
-                wacom_set_phy_from_res(&wacom_wac2->features);
                 wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096;
                 error = wacom_register_input(wacom2);
                 if (error)
@@ -1251,6 +1212,33 @@ fail1:
         return;
 }
 
+/*
+ * Not all devices report physical dimensions from HID.
+ * Compute the default from hardcoded logical dimension
+ * and resolution before driver overwrites them.
+ */
+static void wacom_set_default_phy(struct wacom_features *features)
+{
+        if (features->x_resolution) {
+                features->x_phy = (features->x_max * 100) /
+                                        features->x_resolution;
+                features->y_phy = (features->y_max * 100) /
+                                        features->y_resolution;
+        }
+}
+
+static void wacom_calculate_res(struct wacom_features *features)
+{
+        features->x_resolution = wacom_calc_hid_res(features->x_max,
+                                                    features->x_phy,
+                                                    features->unit,
+                                                    features->unitExpo);
+        features->y_resolution = wacom_calc_hid_res(features->y_max,
+                                                    features->y_phy,
+                                                    features->unit,
+                                                    features->unitExpo);
+}
+
 static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id)
 {
         struct usb_device *dev = interface_to_usbdev(intf);
@@ -1297,6 +1285,9 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
 
         endpoint = &intf->cur_altsetting->endpoint[0].desc;
 
+        /* set the default size in case we do not get them from hid */
+        wacom_set_default_phy(features);
+
         /* Retrieve the physical and logical size for touch devices */
         error = wacom_retrieve_hid_descriptor(intf, features);
         if (error)
@@ -1312,8 +1303,6 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
                         features->device_type = BTN_TOOL_FINGER;
                         features->pktlen = WACOM_PKGLEN_BBTOUCH3;
 
-                        wacom_set_phy_from_res(features);
-
                         features->x_max = 4096;
                         features->y_max = 4096;
                 } else {
@@ -1323,6 +1312,13 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
 
         wacom_setup_device_quirks(features);
 
+        /* set unit to "100th of a mm" for devices not reported by HID */
+        if (!features->unit) {
+                features->unit = 0x11;
+                features->unitExpo = 16 - 3;
+        }
+        wacom_calculate_res(features);
+
         strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name));
 
         if (features->quirks & WACOM_QUIRK_MULTI_INPUT) {
@@ -1334,7 +1330,6 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
                                 " Pen" : " Finger",
                         sizeof(wacom_wac->name));
 
-
                 other_dev = wacom_get_sibling(dev, features->oVid, features->oPid);
                 if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL)
                         other_dev = dev;
@@ -1366,8 +1361,10 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
         usb_set_intfdata(intf, wacom);
 
         if (features->quirks & WACOM_QUIRK_MONITOR) {
-                if (usb_submit_urb(wacom->irq, GFP_KERNEL))
+                if (usb_submit_urb(wacom->irq, GFP_KERNEL)) {
+                        error = -EIO;
                         goto fail5;
+                }
         }
 
         return 0;
@@ -1422,8 +1419,8 @@ static int wacom_resume(struct usb_interface *intf)
         wacom_query_tablet_data(intf, features);
         wacom_led_control(wacom);
 
-        if ((wacom->open || features->quirks & WACOM_QUIRK_MONITOR)
-             && usb_submit_urb(wacom->irq, GFP_NOIO) < 0)
+        if ((wacom->open || (features->quirks & WACOM_QUIRK_MONITOR)) &&
+            usb_submit_urb(wacom->irq, GFP_NOIO) < 0)
                 rv = -EIO;
 
         mutex_unlock(&wacom->lock);
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index f3e91f0b57ae..b2aa503c16b1 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -1445,13 +1445,6 @@ void wacom_setup_device_quirks(struct wacom_features *features)
         }
 }
 
-static unsigned int wacom_calculate_touch_res(unsigned int logical_max,
-                                              unsigned int physical_max)
-{
-       /* Touch physical dimensions are in 100th of mm */
-       return (logical_max * 100) / physical_max;
-}
-
 static void wacom_abs_set_axis(struct input_dev *input_dev,
                                struct wacom_wac *wacom_wac)
 {
@@ -1475,11 +1468,9 @@ static void wacom_abs_set_axis(struct input_dev *input_dev,
                         input_set_abs_params(input_dev, ABS_Y, 0,
                                 features->y_max, features->y_fuzz, 0);
                         input_abs_set_res(input_dev, ABS_X,
-                                wacom_calculate_touch_res(features->x_max,
-                                                        features->x_phy));
+                                          features->x_resolution);
                         input_abs_set_res(input_dev, ABS_Y,
-                                wacom_calculate_touch_res(features->y_max,
-                                                        features->y_phy));
+                                          features->y_resolution);
                 }
 
                 if (features->touch_max > 1) {
@@ -1488,11 +1479,9 @@ static void wacom_abs_set_axis(struct input_dev *input_dev,
                         input_set_abs_params(input_dev, ABS_MT_POSITION_Y, 0,
                                 features->y_max, features->y_fuzz, 0);
                         input_abs_set_res(input_dev, ABS_MT_POSITION_X,
-                                wacom_calculate_touch_res(features->x_max,
-                                                        features->x_phy));
+                                          features->x_resolution);
                         input_abs_set_res(input_dev, ABS_MT_POSITION_Y,
-                                wacom_calculate_touch_res(features->y_max,
-                                                        features->y_phy));
+                                          features->y_resolution);
                 }
         }
 }
diff --git a/drivers/input/touchscreen/cy8ctmg110_ts.c b/drivers/input/touchscreen/cy8ctmg110_ts.c
index 96e0eedcc7e5..8c651985a5c4 100644
--- a/drivers/input/touchscreen/cy8ctmg110_ts.c
+++ b/drivers/input/touchscreen/cy8ctmg110_ts.c
@@ -291,7 +291,7 @@ err_free_mem:
         return err;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int cy8ctmg110_suspend(struct device *dev)
 {
         struct i2c_client *client = to_i2c_client(dev);
@@ -319,9 +319,9 @@ static int cy8ctmg110_resume(struct device *dev)
         }
         return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(cy8ctmg110_pm, cy8ctmg110_suspend, cy8ctmg110_resume);
-#endif
 
 static int cy8ctmg110_remove(struct i2c_client *client)
 {
@@ -351,9 +351,7 @@ static struct i2c_driver cy8ctmg110_driver = {
         .driver         = {
                 .owner  = THIS_MODULE,
                 .name   = CY8CTMG110_DRIVER_NAME,
-#ifdef CONFIG_PM
                 .pm     = &cy8ctmg110_pm,
-#endif
         },
         .id_table       = cy8ctmg110_idtable,
         .probe          = cy8ctmg110_probe,
diff --git a/drivers/input/touchscreen/cyttsp4_core.c b/drivers/input/touchscreen/cyttsp4_core.c
index edcf7993034b..d038575f49db 100644
--- a/drivers/input/touchscreen/cyttsp4_core.c
+++ b/drivers/input/touchscreen/cyttsp4_core.c
@@ -1246,9 +1246,6 @@ static void cyttsp4_watchdog_timer(unsigned long handle)
 
         dev_vdbg(cd->dev, "%s: Watchdog timer triggered\n", __func__);
 
-        if (!cd)
-                return;
-
         if (!work_pending(&cd->watchdog_work))
                 schedule_work(&cd->watchdog_work);
 
@@ -1552,106 +1549,6 @@ exit:
         return rc;
 }
 
-static int cyttsp4_core_sleep(struct cyttsp4 *cd)
-{
-        int rc;
-
-        rc = cyttsp4_request_exclusive(cd, cd->dev,
-                        CY_CORE_SLEEP_REQUEST_EXCLUSIVE_TIMEOUT);
-        if (rc < 0) {
-                dev_err(cd->dev, "%s: fail get exclusive ex=%p own=%p\n",
-                                __func__, cd->exclusive_dev, cd->dev);
-                return 0;
-        }
-
-        rc = cyttsp4_core_sleep_(cd);
-
-        if (cyttsp4_release_exclusive(cd, cd->dev) < 0)
-                dev_err(cd->dev, "%s: fail to release exclusive\n", __func__);
-        else
-                dev_vdbg(cd->dev, "%s: pass release exclusive\n", __func__);
-
-        return rc;
-}
-
-static int cyttsp4_core_wake_(struct cyttsp4 *cd)
-{
-        struct device *dev = cd->dev;
-        int rc;
-        u8 mode;
-        int t;
-
-        /* Already woken? */
-        mutex_lock(&cd->system_lock);
-        if (cd->sleep_state == SS_SLEEP_OFF) {
-                mutex_unlock(&cd->system_lock);
-                return 0;
-        }
-        cd->int_status &= ~CY_INT_IGNORE;
-        cd->int_status |= CY_INT_AWAKE;
-        cd->sleep_state = SS_WAKING;
-
-        if (cd->cpdata->power) {
-                dev_dbg(dev, "%s: Power up HW\n", __func__);
-                rc = cd->cpdata->power(cd->cpdata, 1, dev, &cd->ignore_irq);
-        } else {
-                dev_dbg(dev, "%s: No power function\n", __func__);
-                rc = -ENOSYS;
-        }
-        if (rc < 0) {
-                dev_err(dev, "%s: HW Power up fails r=%d\n",
-                                __func__, rc);
-
-                /* Initiate a read transaction to wake up */
-                cyttsp4_adap_read(cd, CY_REG_BASE, sizeof(mode), &mode);
-        } else
-                dev_vdbg(cd->dev, "%s: HW power up succeeds\n",
-                        __func__);
-        mutex_unlock(&cd->system_lock);
-
-        t = wait_event_timeout(cd->wait_q,
-                        (cd->int_status & CY_INT_AWAKE) == 0,
-                        msecs_to_jiffies(CY_CORE_WAKEUP_TIMEOUT));
-        if (IS_TMO(t)) {
-                dev_err(dev, "%s: TMO waiting for wakeup\n", __func__);
-                mutex_lock(&cd->system_lock);
-                cd->int_status &= ~CY_INT_AWAKE;
-                /* Try starting up */
-                cyttsp4_queue_startup_(cd);
-                mutex_unlock(&cd->system_lock);
-        }
-
-        mutex_lock(&cd->system_lock);
-        cd->sleep_state = SS_SLEEP_OFF;
-        mutex_unlock(&cd->system_lock);
-
-        cyttsp4_start_wd_timer(cd);
-
-        return 0;
-}
-
-static int cyttsp4_core_wake(struct cyttsp4 *cd)
-{
-        int rc;
-
-        rc = cyttsp4_request_exclusive(cd, cd->dev,
-                        CY_CORE_REQUEST_EXCLUSIVE_TIMEOUT);
-        if (rc < 0) {
-                dev_err(cd->dev, "%s: fail get exclusive ex=%p own=%p\n",
-                                __func__, cd->exclusive_dev, cd->dev);
-                return 0;
-        }
-
-        rc = cyttsp4_core_wake_(cd);
-
-        if (cyttsp4_release_exclusive(cd, cd->dev) < 0)
-                dev_err(cd->dev, "%s: fail to release exclusive\n", __func__);
-        else
-                dev_vdbg(cd->dev, "%s: pass release exclusive\n", __func__);
-
-        return rc;
-}
-
 static int cyttsp4_startup_(struct cyttsp4 *cd)
 {
         int retry = CY_CORE_STARTUP_RETRY_COUNT;
@@ -1821,6 +1718,106 @@ static void cyttsp4_free_si_ptrs(struct cyttsp4 *cd)
 }
 
 #if defined(CONFIG_PM_SLEEP) || defined(CONFIG_PM_RUNTIME)
+static int cyttsp4_core_sleep(struct cyttsp4 *cd)
+{
+        int rc;
+
+        rc = cyttsp4_request_exclusive(cd, cd->dev,
+                        CY_CORE_SLEEP_REQUEST_EXCLUSIVE_TIMEOUT);
+        if (rc < 0) {
+                dev_err(cd->dev, "%s: fail get exclusive ex=%p own=%p\n",
+                                __func__, cd->exclusive_dev, cd->dev);
+                return 0;
+        }
+
+        rc = cyttsp4_core_sleep_(cd);
+
+        if (cyttsp4_release_exclusive(cd, cd->dev) < 0)
+                dev_err(cd->dev, "%s: fail to release exclusive\n", __func__);
+        else
+                dev_vdbg(cd->dev, "%s: pass release exclusive\n", __func__);
+
+        return rc;
+}
+
+static int cyttsp4_core_wake_(struct cyttsp4 *cd)
+{
+        struct device *dev = cd->dev;
+        int rc;
+        u8 mode;
+        int t;
+
+        /* Already woken? */
+        mutex_lock(&cd->system_lock);
+        if (cd->sleep_state == SS_SLEEP_OFF) {
+                mutex_unlock(&cd->system_lock);
+                return 0;
+        }
+        cd->int_status &= ~CY_INT_IGNORE;
+        cd->int_status |= CY_INT_AWAKE;
+        cd->sleep_state = SS_WAKING;
+
+        if (cd->cpdata->power) {
+                dev_dbg(dev, "%s: Power up HW\n", __func__);
+                rc = cd->cpdata->power(cd->cpdata, 1, dev, &cd->ignore_irq);
+        } else {
+                dev_dbg(dev, "%s: No power function\n", __func__);
+                rc = -ENOSYS;
+        }
+        if (rc < 0) {
+                dev_err(dev, "%s: HW Power up fails r=%d\n",
+                                __func__, rc);
+
+                /* Initiate a read transaction to wake up */
+                cyttsp4_adap_read(cd, CY_REG_BASE, sizeof(mode), &mode);
+        } else
+                dev_vdbg(cd->dev, "%s: HW power up succeeds\n",
+                        __func__);
+        mutex_unlock(&cd->system_lock);
+
+        t = wait_event_timeout(cd->wait_q,
+                        (cd->int_status & CY_INT_AWAKE) == 0,
+                        msecs_to_jiffies(CY_CORE_WAKEUP_TIMEOUT));
+        if (IS_TMO(t)) {
+                dev_err(dev, "%s: TMO waiting for wakeup\n", __func__);
+                mutex_lock(&cd->system_lock);
+                cd->int_status &= ~CY_INT_AWAKE;
+                /* Try starting up */
+                cyttsp4_queue_startup_(cd);
+                mutex_unlock(&cd->system_lock);
+        }
+
+        mutex_lock(&cd->system_lock);
+        cd->sleep_state = SS_SLEEP_OFF;
+        mutex_unlock(&cd->system_lock);
+
+        cyttsp4_start_wd_timer(cd);
+
+        return 0;
+}
+
+static int cyttsp4_core_wake(struct cyttsp4 *cd)
+{
+        int rc;
+
+        rc = cyttsp4_request_exclusive(cd, cd->dev,
+                        CY_CORE_REQUEST_EXCLUSIVE_TIMEOUT);
+        if (rc < 0) {
+                dev_err(cd->dev, "%s: fail get exclusive ex=%p own=%p\n",
+                                __func__, cd->exclusive_dev, cd->dev);
+                return 0;
+        }
+
+        rc = cyttsp4_core_wake_(cd);
+
+        if (cyttsp4_release_exclusive(cd, cd->dev) < 0)
+                dev_err(cd->dev, "%s: fail to release exclusive\n", __func__);
+        else
+                dev_vdbg(cd->dev, "%s: pass release exclusive\n", __func__);
+
+        return rc;
+}
+
 static int cyttsp4_core_suspend(struct device *dev)
 {
         struct cyttsp4 *cd = dev_get_drvdata(dev);
diff --git a/drivers/input/touchscreen/eeti_ts.c b/drivers/input/touchscreen/eeti_ts.c
index 8fe5086c8d2e..1ce3d29ffca5 100644
--- a/drivers/input/touchscreen/eeti_ts.c
+++ b/drivers/input/touchscreen/eeti_ts.c
@@ -264,7 +264,7 @@ static int eeti_ts_remove(struct i2c_client *client)
         return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int eeti_ts_suspend(struct device *dev)
 {
         struct i2c_client *client = to_i2c_client(dev);
@@ -302,9 +302,9 @@ static int eeti_ts_resume(struct device *dev)
 
         return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(eeti_ts_pm, eeti_ts_suspend, eeti_ts_resume);
-#endif
 
 static const struct i2c_device_id eeti_ts_id[] = {
         { "eeti_ts", 0 },
@@ -315,9 +315,7 @@ MODULE_DEVICE_TABLE(i2c, eeti_ts_id);
 static struct i2c_driver eeti_ts_driver = {
         .driver = {
                 .name = "eeti_ts",
-#ifdef CONFIG_PM
                 .pm = &eeti_ts_pm,
-#endif
         },
         .probe = eeti_ts_probe,
         .remove = eeti_ts_remove,
diff --git a/drivers/input/touchscreen/htcpen.c b/drivers/input/touchscreen/htcpen.c
index 6c4fb8436957..66500852341b 100644
--- a/drivers/input/touchscreen/htcpen.c
+++ b/drivers/input/touchscreen/htcpen.c
@@ -221,7 +221,7 @@ static struct isa_driver htcpen_isa_driver = {
         }
 };
 
-static struct dmi_system_id __initdata htcshift_dmi_table[] = {
+static struct dmi_system_id htcshift_dmi_table[] __initdata = {
         {
                 .ident = "Shift",
                 .matches = {
diff --git a/drivers/input/touchscreen/max11801_ts.c b/drivers/input/touchscreen/max11801_ts.c
index 00bc6caa27f5..9f84fcd08732 100644
--- a/drivers/input/touchscreen/max11801_ts.c
+++ b/drivers/input/touchscreen/max11801_ts.c
@@ -181,12 +181,11 @@ static int max11801_ts_probe(struct i2c_client *client,
         struct input_dev *input_dev;
         int error;
 
-        data = kzalloc(sizeof(struct max11801_data), GFP_KERNEL);
-        input_dev = input_allocate_device();
+        data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
+        input_dev = devm_input_allocate_device(&client->dev);
         if (!data || !input_dev) {
                 dev_err(&client->dev, "Failed to allocate memory\n");
-                error = -ENOMEM;
-                goto err_free_mem;
+                return -ENOMEM;
         }
 
         data->client = client;
@@ -205,38 +204,21 @@ static int max11801_ts_probe(struct i2c_client *client,
 
         max11801_ts_phy_init(data);
 
-        error = request_threaded_irq(client->irq, NULL, max11801_ts_interrupt,
-                                     IRQF_TRIGGER_LOW | IRQF_ONESHOT,
-                                     "max11801_ts", data);
+        error = devm_request_threaded_irq(&client->dev, client->irq, NULL,
+                                          max11801_ts_interrupt,
+                                          IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+                                          "max11801_ts", data);
         if (error) {
                 dev_err(&client->dev, "Failed to register interrupt\n");
-                goto err_free_mem;
+                return error;
         }
 
         error = input_register_device(data->input_dev);
         if (error)
-                goto err_free_irq;
+                return error;
 
         i2c_set_clientdata(client, data);
         return 0;
-
-err_free_irq:
-        free_irq(client->irq, data);
-err_free_mem:
-        input_free_device(input_dev);
-        kfree(data);
-        return error;
-}
-
-static int max11801_ts_remove(struct i2c_client *client)
-{
-        struct max11801_data *data = i2c_get_clientdata(client);
-
-        free_irq(client->irq, data);
-        input_unregister_device(data->input_dev);
-        kfree(data);
-
-        return 0;
 }
 
 static const struct i2c_device_id max11801_ts_id[] = {
@@ -252,7 +234,6 @@ static struct i2c_driver max11801_ts_driver = {
         },
         .id_table       = max11801_ts_id,
         .probe          = max11801_ts_probe,
-        .remove         = max11801_ts_remove,
 };
 
 module_i2c_driver(max11801_ts_driver);