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: (64 commits)
  Input: tc3589x-keypad - add missing kerneldoc
  Input: ucb1400-ts - switch to using dev_xxx() for diagnostic messages
  Input: ucb1400_ts - convert to threaded IRQ
  Input: ucb1400_ts - drop inline annotations
  Input: usb1400_ts - add __devinit/__devexit section annotations
  Input: ucb1400_ts - set driver owner
  Input: ucb1400_ts - convert to use dev_pm_ops
  Input: psmouse - make sure we do not use stale methods
  Input: evdev - do not block waiting for an event if fd is nonblock
  Input: evdev - if no events and non-block, return EAGAIN not 0
  Input: evdev - only allow reading events if a full packet is present
  Input: add driver for pixcir i2c touchscreens
  Input: samsung-keypad - implement runtime power management support
  Input: tegra-kbc - report wakeup key for some platforms
  Input: tegra-kbc - add device tree bindings
  Input: add driver for AUO In-Cell touchscreens using pixcir ICs
  Input: mpu3050 - configure the sampling method
  Input: mpu3050 - ensure we enable interrupts
  Input: mpu3050 - add of_match table for device-tree probing
  Input: sentelic - document the latest hardware
  ...

Fix up fairly trivial conflicts (device tree matching conflicting with
some independent cleanups) in drivers/input/keyboard/samsung-keypad.c

31 files changed, 704 insertions, 372 deletions

diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 615c21f2a553..cdc385b2cf7d 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -221,6 +221,22 @@ config KEYBOARD_TCA6416
           To compile this driver as a module, choose M here: the
           module will be called tca6416_keypad.
 
+config KEYBOARD_TCA8418
+        tristate "TCA8418 Keypad Support"
+        depends on I2C
+        help
+          This driver implements basic keypad functionality
+          for keys connected through TCA8418 keypad decoder.
+
+          Say Y here if your device has keys connected to
+          TCA8418 keypad decoder.
+
+          If enabled the complete TCA8418 device will be managed through
+          this driver.
+
+          To compile this driver as a module, choose M here: the
+          module will be called tca8418_keypad.
+
 config KEYBOARD_MATRIX
         tristate "GPIO driven matrix keypad support"
         depends on GENERIC_GPIO
@@ -425,9 +441,10 @@ config KEYBOARD_PMIC8XXX
 
 config KEYBOARD_SAMSUNG
         tristate "Samsung keypad support"
-        depends on SAMSUNG_DEV_KEYPAD
+        depends on HAVE_CLK
         help
-          Say Y here if you want to use the Samsung keypad.
+          Say Y here if you want to use the keypad on your Samsung mobile
+          device.
 
           To compile this driver as a module, choose M here: the
           module will be called samsung-keypad.
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index ddde0fd476f7..df7061f12918 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_KEYBOARD_EP93XX)		+= ep93xx_keypad.o
 obj-$(CONFIG_KEYBOARD_GPIO)             += gpio_keys.o
 obj-$(CONFIG_KEYBOARD_GPIO_POLLED)      += gpio_keys_polled.o
 obj-$(CONFIG_KEYBOARD_TCA6416)          += tca6416-keypad.o
+obj-$(CONFIG_KEYBOARD_TCA8418)          += tca8418_keypad.o
 obj-$(CONFIG_KEYBOARD_HIL)              += hil_kbd.o
 obj-$(CONFIG_KEYBOARD_HIL_OLD)          += hilkbd.o
 obj-$(CONFIG_KEYBOARD_IMX)              += imx_keypad.o
diff --git a/drivers/input/keyboard/adp5520-keys.c b/drivers/input/keyboard/adp5520-keys.c
index 3db8006dac3a..e9e8674dfda1 100644
--- a/drivers/input/keyboard/adp5520-keys.c
+++ b/drivers/input/keyboard/adp5520-keys.c
@@ -202,18 +202,7 @@ static struct platform_driver adp5520_keys_driver = {
         .probe          = adp5520_keys_probe,
         .remove         = __devexit_p(adp5520_keys_remove),
 };
-
-static int __init adp5520_keys_init(void)
-{
-        return platform_driver_register(&adp5520_keys_driver);
-}
-module_init(adp5520_keys_init);
-
-static void __exit adp5520_keys_exit(void)
-{
-        platform_driver_unregister(&adp5520_keys_driver);
-}
-module_exit(adp5520_keys_exit);
+module_platform_driver(adp5520_keys_driver);
 
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("Keys ADP5520 Driver");
diff --git a/drivers/input/keyboard/amikbd.c b/drivers/input/keyboard/amikbd.c
index 79172af164f2..6df5f6aa7908 100644
--- a/drivers/input/keyboard/amikbd.c
+++ b/drivers/input/keyboard/amikbd.c
@@ -259,19 +259,6 @@ static struct platform_driver amikbd_driver = {
                 .owner  = THIS_MODULE,
         },
 };
-
-static int __init amikbd_init(void)
-{
-        return platform_driver_probe(&amikbd_driver, amikbd_probe);
-}
-
-module_init(amikbd_init);
-
-static void __exit amikbd_exit(void)
-{
-        platform_driver_unregister(&amikbd_driver);
-}
-
-module_exit(amikbd_exit);
+module_platform_driver(amikbd_driver);
 
 MODULE_ALIAS("platform:amiga-keyboard");
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index 19cfc0cf558c..e05a2e7073c6 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -1305,7 +1305,7 @@ static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
 static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
 {
         struct input_dev *old_dev, *new_dev;
-        unsigned long value;
+        unsigned int value;
         int err;
         bool old_extra;
         unsigned char old_set;
@@ -1313,7 +1313,11 @@ static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t coun
         if (!atkbd->write)
                 return -EIO;
 
-        if (strict_strtoul(buf, 10, &value) || value > 1)
+        err = kstrtouint(buf, 10, &value);
+        if (err)
+                return err;
+
+        if (value > 1)
                 return -EINVAL;
 
         if (atkbd->extra != value) {
@@ -1389,11 +1393,15 @@ static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
 static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
 {
         struct input_dev *old_dev, *new_dev;
-        unsigned long value;
+        unsigned int value;
         int err;
         bool old_scroll;
 
-        if (strict_strtoul(buf, 10, &value) || value > 1)
+        err = kstrtouint(buf, 10, &value);
+        if (err)
+                return err;
+
+        if (value > 1)
                 return -EINVAL;
 
         if (atkbd->scroll != value) {
@@ -1433,7 +1441,7 @@ static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
 static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
 {
         struct input_dev *old_dev, *new_dev;
-        unsigned long value;
+        unsigned int value;
         int err;
         unsigned char old_set;
         bool old_extra;
@@ -1441,7 +1449,11 @@ static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
         if (!atkbd->write)
                 return -EIO;
 
-        if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3))
+        err = kstrtouint(buf, 10, &value);
+        if (err)
+                return err;
+
+        if (value != 2 && value != 3)
                 return -EINVAL;
 
         if (atkbd->set != value) {
@@ -1484,14 +1496,18 @@ static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
 static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
 {
         struct input_dev *old_dev, *new_dev;
-        unsigned long value;
+        unsigned int value;
         int err;
         bool old_softrepeat, old_softraw;
 
         if (!atkbd->write)
                 return -EIO;
 
-        if (strict_strtoul(buf, 10, &value) || value > 1)
+        err = kstrtouint(buf, 10, &value);
+        if (err)
+                return err;
+
+        if (value > 1)
                 return -EINVAL;
 
         if (atkbd->softrepeat != value) {
@@ -1534,11 +1550,15 @@ static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
 static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
 {
         struct input_dev *old_dev, *new_dev;
-        unsigned long value;
+        unsigned int value;
         int err;
         bool old_softraw;
 
-        if (strict_strtoul(buf, 10, &value) || value > 1)
+        err = kstrtouint(buf, 10, &value);
+        if (err)
+                return err;
+
+        if (value > 1)
                 return -EINVAL;
 
         if (atkbd->softraw != value) {
diff --git a/drivers/input/keyboard/bf54x-keys.c b/drivers/input/keyboard/bf54x-keys.c
index 7d989603f875..8eb9116e0a5f 100644
--- a/drivers/input/keyboard/bf54x-keys.c
+++ b/drivers/input/keyboard/bf54x-keys.c
@@ -384,7 +384,7 @@ static int bfin_kpad_resume(struct platform_device *pdev)
 # define bfin_kpad_resume  NULL
 #endif
 
-struct platform_driver bfin_kpad_device_driver = {
+static struct platform_driver bfin_kpad_device_driver = {
         .driver         = {
                 .name   = DRV_NAME,
                 .owner  = THIS_MODULE,
@@ -394,19 +394,7 @@ struct platform_driver bfin_kpad_device_driver = {
         .suspend        = bfin_kpad_suspend,
         .resume         = bfin_kpad_resume,
 };
-
-static int __init bfin_kpad_init(void)
-{
-        return platform_driver_register(&bfin_kpad_device_driver);
-}
-
-static void __exit bfin_kpad_exit(void)
-{
-        platform_driver_unregister(&bfin_kpad_device_driver);
-}
-
-module_init(bfin_kpad_init);
-module_exit(bfin_kpad_exit);
+module_platform_driver(bfin_kpad_device_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
diff --git a/drivers/input/keyboard/davinci_keyscan.c b/drivers/input/keyboard/davinci_keyscan.c
index 9d82b3aeff5e..469825247552 100644
--- a/drivers/input/keyboard/davinci_keyscan.c
+++ b/drivers/input/keyboard/davinci_keyscan.c
@@ -328,18 +328,7 @@ static struct platform_driver davinci_ks_driver = {
         },
         .remove = __devexit_p(davinci_ks_remove),
 };
-
-static int __init davinci_ks_init(void)
-{
-        return platform_driver_probe(&davinci_ks_driver, davinci_ks_probe);
-}
-module_init(davinci_ks_init);
-
-static void __exit davinci_ks_exit(void)
-{
-        platform_driver_unregister(&davinci_ks_driver);
-}
-module_exit(davinci_ks_exit);
+module_platform_driver(davinci_ks_driver);
 
 MODULE_AUTHOR("Miguel Aguilar");
 MODULE_DESCRIPTION("Texas Instruments DaVinci Key Scan Driver");
diff --git a/drivers/input/keyboard/ep93xx_keypad.c b/drivers/input/keyboard/ep93xx_keypad.c
index 4662c5da8018..0ba69f3fcb52 100644
--- a/drivers/input/keyboard/ep93xx_keypad.c
+++ b/drivers/input/keyboard/ep93xx_keypad.c
@@ -390,19 +390,7 @@ static struct platform_driver ep93xx_keypad_driver = {
         .suspend        = ep93xx_keypad_suspend,
         .resume         = ep93xx_keypad_resume,
 };
-
-static int __init ep93xx_keypad_init(void)
-{
-        return platform_driver_register(&ep93xx_keypad_driver);
-}
-
-static void __exit ep93xx_keypad_exit(void)
-{
-        platform_driver_unregister(&ep93xx_keypad_driver);
-}
-
-module_init(ep93xx_keypad_init);
-module_exit(ep93xx_keypad_exit);
+module_platform_driver(ep93xx_keypad_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c
index 4c17aff20657..20c8ab172214 100644
--- a/drivers/input/keyboard/gpio_keys_polled.c
+++ b/drivers/input/keyboard/gpio_keys_polled.c
@@ -241,19 +241,7 @@ static struct platform_driver gpio_keys_polled_driver = {
                 .owner  = THIS_MODULE,
         },
 };
-
-static int __init gpio_keys_polled_init(void)
-{
-        return platform_driver_register(&gpio_keys_polled_driver);
-}
-
-static void __exit gpio_keys_polled_exit(void)
-{
-        platform_driver_unregister(&gpio_keys_polled_driver);
-}
-
-module_init(gpio_keys_polled_init);
-module_exit(gpio_keys_polled_exit);
+module_platform_driver(gpio_keys_polled_driver);
 
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
diff --git a/drivers/input/keyboard/imx_keypad.c b/drivers/input/keyboard/imx_keypad.c
index ccebd2d09151..fb87b3bcadb9 100644
--- a/drivers/input/keyboard/imx_keypad.c
+++ b/drivers/input/keyboard/imx_keypad.c
@@ -619,19 +619,7 @@ static struct platform_driver imx_keypad_driver = {
         .probe          = imx_keypad_probe,
         .remove         = __devexit_p(imx_keypad_remove),
 };
-
-static int __init imx_keypad_init(void)
-{
-        return platform_driver_register(&imx_keypad_driver);
-}
-
-static void __exit imx_keypad_exit(void)
-{
-        platform_driver_unregister(&imx_keypad_driver);
-}
-
-module_init(imx_keypad_init);
-module_exit(imx_keypad_exit);
+module_platform_driver(imx_keypad_driver);
 
 MODULE_AUTHOR("Alberto Panizzo <maramaopercheseimorto@gmail.com>");
 MODULE_DESCRIPTION("IMX Keypad Port Driver");
diff --git a/drivers/input/keyboard/jornada680_kbd.c b/drivers/input/keyboard/jornada680_kbd.c
index 7197c5698747..24f3ea01c4d5 100644
--- a/drivers/input/keyboard/jornada680_kbd.c
+++ b/drivers/input/keyboard/jornada680_kbd.c
@@ -260,19 +260,7 @@ static struct platform_driver jornada680kbd_driver = {
         .probe  = jornada680kbd_probe,
         .remove = __devexit_p(jornada680kbd_remove),
 };
-
-static int __init jornada680kbd_init(void)
-{
-        return platform_driver_register(&jornada680kbd_driver);
-}
-
-static void __exit jornada680kbd_exit(void)
-{
-        platform_driver_unregister(&jornada680kbd_driver);
-}
-
-module_init(jornada680kbd_init);
-module_exit(jornada680kbd_exit);
+module_platform_driver(jornada680kbd_driver);
 
 MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");
 MODULE_DESCRIPTION("HP Jornada 620/660/680/690 Keyboard Driver");
diff --git a/drivers/input/keyboard/jornada720_kbd.c b/drivers/input/keyboard/jornada720_kbd.c
index 0aa6740e60d0..eeafc30b207b 100644
--- a/drivers/input/keyboard/jornada720_kbd.c
+++ b/drivers/input/keyboard/jornada720_kbd.c
@@ -174,16 +174,4 @@ static struct platform_driver jornada720_kbd_driver = {
         .probe   = jornada720_kbd_probe,
         .remove  = __devexit_p(jornada720_kbd_remove),
 };
-
-static int __init jornada720_kbd_init(void)
-{
-        return platform_driver_register(&jornada720_kbd_driver);
-}
-
-static void __exit jornada720_kbd_exit(void)
-{
-        platform_driver_unregister(&jornada720_kbd_driver);
-}
-
-module_init(jornada720_kbd_init);
-module_exit(jornada720_kbd_exit);
+module_platform_driver(jornada720_kbd_driver);
diff --git a/drivers/input/keyboard/lm8323.c b/drivers/input/keyboard/lm8323.c
index 82d1dc8badd5..21823bfc7911 100644
--- a/drivers/input/keyboard/lm8323.c
+++ b/drivers/input/keyboard/lm8323.c
@@ -545,13 +545,12 @@ static ssize_t lm8323_pwm_store_time(struct device *dev,
 {
         struct led_classdev *led_cdev = dev_get_drvdata(dev);
         struct lm8323_pwm *pwm = cdev_to_pwm(led_cdev);
-        int ret;
-        unsigned long time;
+        int ret, time;
 
-        ret = strict_strtoul(buf, 10, &time);
+        ret = kstrtoint(buf, 10, &time);
         /* Numbers only, please. */
         if (ret)
-                return -EINVAL;
+                return ret;
 
         pwm->fade_time = time;
 
@@ -613,9 +612,9 @@ static ssize_t lm8323_set_disable(struct device *dev,
 {
         struct lm8323_chip *lm = dev_get_drvdata(dev);
         int ret;
-        unsigned long i;
+        unsigned int i;
 
-        ret = strict_strtoul(buf, 10, &i);
+        ret = kstrtouint(buf, 10, &i);
 
         mutex_lock(&lm->lock);
         lm->kp_enabled = !i;
diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c
index e2ae657717ea..9b223d73de32 100644
--- a/drivers/input/keyboard/matrix_keypad.c
+++ b/drivers/input/keyboard/matrix_keypad.c
@@ -496,19 +496,7 @@ static struct platform_driver matrix_keypad_driver = {
 #endif
         },
 };
-
-static int __init matrix_keypad_init(void)
-{
-        return platform_driver_register(&matrix_keypad_driver);
-}
-
-static void __exit matrix_keypad_exit(void)
-{
-        platform_driver_unregister(&matrix_keypad_driver);
-}
-
-module_init(matrix_keypad_init);
-module_exit(matrix_keypad_exit);
+module_platform_driver(matrix_keypad_driver);
 
 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
 MODULE_DESCRIPTION("GPIO Driven Matrix Keypad Driver");
diff --git a/drivers/input/keyboard/nomadik-ske-keypad.c b/drivers/input/keyboard/nomadik-ske-keypad.c
index fcdec5e2b297..5a71e55c9c54 100644
--- a/drivers/input/keyboard/nomadik-ske-keypad.c
+++ b/drivers/input/keyboard/nomadik-ske-keypad.c
@@ -379,7 +379,7 @@ static const struct dev_pm_ops ske_keypad_dev_pm_ops = {
 };
 #endif
 
-struct platform_driver ske_keypad_driver = {
+static struct platform_driver ske_keypad_driver = {
         .driver = {
                 .name = "nmk-ske-keypad",
                 .owner  = THIS_MODULE,
@@ -390,18 +390,7 @@ struct platform_driver ske_keypad_driver = {
         .probe = ske_keypad_probe,
         .remove = __devexit_p(ske_keypad_remove),
 };
-
-static int __init ske_keypad_init(void)
-{
-        return platform_driver_probe(&ske_keypad_driver, ske_keypad_probe);
-}
-module_init(ske_keypad_init);
-
-static void __exit ske_keypad_exit(void)
-{
-        platform_driver_unregister(&ske_keypad_driver);
-}
-module_exit(ske_keypad_exit);
+module_platform_driver(ske_keypad_driver);
 
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Naveen Kumar <naveen.gaddipati@stericsson.com> / Sundar Iyer <sundar.iyer@stericsson.com>");
diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c
index 323bcdfff248..6b630d9d3dff 100644
--- a/drivers/input/keyboard/omap-keypad.c
+++ b/drivers/input/keyboard/omap-keypad.c
@@ -473,20 +473,7 @@ static struct platform_driver omap_kp_driver = {
                 .owner  = THIS_MODULE,
         },
 };
-
-static int __init omap_kp_init(void)
-{
-        printk(KERN_INFO "OMAP Keypad Driver\n");
-        return platform_driver_register(&omap_kp_driver);
-}
-
-static void __exit omap_kp_exit(void)
-{
-        platform_driver_unregister(&omap_kp_driver);
-}
-
-module_init(omap_kp_init);
-module_exit(omap_kp_exit);
+module_platform_driver(omap_kp_driver);
 
 MODULE_AUTHOR("Timo Teräs");
 MODULE_DESCRIPTION("OMAP Keypad Driver");
diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c
index c51a3c4a7feb..d5c5d77f4b82 100644
--- a/drivers/input/keyboard/omap4-keypad.c
+++ b/drivers/input/keyboard/omap4-keypad.c
@@ -335,18 +335,7 @@ static struct platform_driver omap4_keypad_driver = {
                 .owner  = THIS_MODULE,
         },
 };
-
-static int __init omap4_keypad_init(void)
-{
-        return platform_driver_register(&omap4_keypad_driver);
-}
-module_init(omap4_keypad_init);
-
-static void __exit omap4_keypad_exit(void)
-{
-        platform_driver_unregister(&omap4_keypad_driver);
-}
-module_exit(omap4_keypad_exit);
+module_platform_driver(omap4_keypad_driver);
 
 MODULE_AUTHOR("Texas Instruments");
 MODULE_DESCRIPTION("OMAP4 Keypad Driver");
diff --git a/drivers/input/keyboard/opencores-kbd.c b/drivers/input/keyboard/opencores-kbd.c
index 1f1a5563f60a..abe728c7b88e 100644
--- a/drivers/input/keyboard/opencores-kbd.c
+++ b/drivers/input/keyboard/opencores-kbd.c
@@ -163,18 +163,7 @@ static struct platform_driver opencores_kbd_device_driver = {
                 .name = "opencores-kbd",
         },
 };
-
-static int __init opencores_kbd_init(void)
-{
-        return platform_driver_register(&opencores_kbd_device_driver);
-}
-module_init(opencores_kbd_init);
-
-static void __exit opencores_kbd_exit(void)
-{
-        platform_driver_unregister(&opencores_kbd_device_driver);
-}
-module_exit(opencores_kbd_exit);
+module_platform_driver(opencores_kbd_device_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Javier Herrero <jherrero@hvsistemas.es>");
diff --git a/drivers/input/keyboard/pmic8xxx-keypad.c b/drivers/input/keyboard/pmic8xxx-keypad.c
index e7cc51d0fb34..01a1c9f8a383 100644
--- a/drivers/input/keyboard/pmic8xxx-keypad.c
+++ b/drivers/input/keyboard/pmic8xxx-keypad.c
@@ -780,18 +780,7 @@ static struct platform_driver pmic8xxx_kp_driver = {
                 .pm = &pm8xxx_kp_pm_ops,
         },
 };
-
-static int __init pmic8xxx_kp_init(void)
-{
-        return platform_driver_register(&pmic8xxx_kp_driver);
-}
-module_init(pmic8xxx_kp_init);
-
-static void __exit pmic8xxx_kp_exit(void)
-{
-        platform_driver_unregister(&pmic8xxx_kp_driver);
-}
-module_exit(pmic8xxx_kp_exit);
+module_platform_driver(pmic8xxx_kp_driver);
 
 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("PMIC8XXX keypad driver");
diff --git a/drivers/input/keyboard/pxa27x_keypad.c b/drivers/input/keyboard/pxa27x_keypad.c
index eca6ae63de14..29fe1b2be1c1 100644
--- a/drivers/input/keyboard/pxa27x_keypad.c
+++ b/drivers/input/keyboard/pxa27x_keypad.c
@@ -602,19 +602,7 @@ static struct platform_driver pxa27x_keypad_driver = {
 #endif
         },
 };
-
-static int __init pxa27x_keypad_init(void)
-{
-        return platform_driver_register(&pxa27x_keypad_driver);
-}
-
-static void __exit pxa27x_keypad_exit(void)
-{
-        platform_driver_unregister(&pxa27x_keypad_driver);
-}
-
-module_init(pxa27x_keypad_init);
-module_exit(pxa27x_keypad_exit);
+module_platform_driver(pxa27x_keypad_driver);
 
 MODULE_DESCRIPTION("PXA27x Keypad Controller Driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/pxa930_rotary.c b/drivers/input/keyboard/pxa930_rotary.c
index 35451bf780c7..d7f1134b789e 100644
--- a/drivers/input/keyboard/pxa930_rotary.c
+++ b/drivers/input/keyboard/pxa930_rotary.c
@@ -195,18 +195,7 @@ static struct platform_driver pxa930_rotary_driver = {
         .probe          = pxa930_rotary_probe,
         .remove         = __devexit_p(pxa930_rotary_remove),
 };
-
-static int __init pxa930_rotary_init(void)
-{
-        return platform_driver_register(&pxa930_rotary_driver);
-}
-module_init(pxa930_rotary_init);
-
-static void __exit pxa930_rotary_exit(void)
-{
-        platform_driver_unregister(&pxa930_rotary_driver);
-}
-module_exit(pxa930_rotary_exit);
+module_platform_driver(pxa930_rotary_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Driver for PXA93x Enhanced Rotary Controller");
diff --git a/drivers/input/keyboard/samsung-keypad.c b/drivers/input/keyboard/samsung-keypad.c
index 8a0060cd3982..17ba7f9f80f3 100644
--- a/drivers/input/keyboard/samsung-keypad.c
+++ b/drivers/input/keyboard/samsung-keypad.c
@@ -20,11 +20,13 @@
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
 #include <linux/slab.h>
 #include <linux/of.h>
 #include <linux/of_gpio.h>
 #include <linux/sched.h>
-#include <plat/keypad.h>
+#include <linux/input/samsung-keypad.h>
 
 #define SAMSUNG_KEYIFCON                        0x00
 #define SAMSUNG_KEYIFSTSCLR                     0x04
@@ -65,10 +67,12 @@ enum samsung_keypad_type {
 
 struct samsung_keypad {
         struct input_dev *input_dev;
+        struct platform_device *pdev;
         struct clk *clk;
         void __iomem *base;
         wait_queue_head_t wait;
         bool stopped;
+        bool wake_enabled;
         int irq;
         enum samsung_keypad_type type;
         unsigned int row_shift;
@@ -155,6 +159,8 @@ static irqreturn_t samsung_keypad_irq(int irq, void *dev_id)
         unsigned int val;
         bool key_down;
 
+        pm_runtime_get_sync(&keypad->pdev->dev);
+
         do {
                 val = readl(keypad->base + SAMSUNG_KEYIFSTSCLR);
                 /* Clear interrupt. */
@@ -169,6 +175,8 @@ static irqreturn_t samsung_keypad_irq(int irq, void *dev_id)
 
         } while (key_down && !keypad->stopped);
 
+        pm_runtime_put_sync(&keypad->pdev->dev);
+
         return IRQ_HANDLED;
 }
 
@@ -176,6 +184,8 @@ static void samsung_keypad_start(struct samsung_keypad *keypad)
 {
         unsigned int val;
 
+        pm_runtime_get_sync(&keypad->pdev->dev);
+
         /* Tell IRQ thread that it may poll the device. */
         keypad->stopped = false;
 
@@ -188,12 +198,16 @@ static void samsung_keypad_start(struct samsung_keypad *keypad)
 
         /* KEYIFCOL reg clear. */
         writel(0, keypad->base + SAMSUNG_KEYIFCOL);
+
+        pm_runtime_put_sync(&keypad->pdev->dev);
 }
 
 static void samsung_keypad_stop(struct samsung_keypad *keypad)
 {
         unsigned int val;
 
+        pm_runtime_get_sync(&keypad->pdev->dev);
+
         /* Signal IRQ thread to stop polling and disable the handler. */
         keypad->stopped = true;
         wake_up(&keypad->wait);
@@ -214,6 +228,8 @@ static void samsung_keypad_stop(struct samsung_keypad *keypad)
          * re-enable the handler.
          */
         enable_irq(keypad->irq);
+
+        pm_runtime_put_sync(&keypad->pdev->dev);
 }
 
 static int samsung_keypad_open(struct input_dev *input_dev)
@@ -418,9 +434,11 @@ static int __devinit samsung_keypad_probe(struct platform_device *pdev)
         }
 
         keypad->input_dev = input_dev;
+        keypad->pdev = pdev;
         keypad->row_shift = row_shift;
         keypad->rows = pdata->rows;
         keypad->cols = pdata->cols;
+        keypad->stopped = true;
         init_waitqueue_head(&keypad->wait);
 
         if (pdev->dev.of_node) {
@@ -467,13 +485,14 @@ static int __devinit samsung_keypad_probe(struct platform_device *pdev)
                 goto err_put_clk;
         }
 
+        device_init_wakeup(&pdev->dev, pdata->wakeup);
+        platform_set_drvdata(pdev, keypad);
+        pm_runtime_enable(&pdev->dev);
+
         error = input_register_device(keypad->input_dev);
         if (error)
                 goto err_free_irq;
 
-        device_init_wakeup(&pdev->dev, pdata->wakeup);
-        platform_set_drvdata(pdev, keypad);
-
         if (pdev->dev.of_node) {
                 devm_kfree(&pdev->dev, (void *)pdata->keymap_data->keymap);
                 devm_kfree(&pdev->dev, (void *)pdata->keymap_data);
@@ -483,6 +502,9 @@ static int __devinit samsung_keypad_probe(struct platform_device *pdev)
 
 err_free_irq:
         free_irq(keypad->irq, keypad);
+        pm_runtime_disable(&pdev->dev);
+        device_init_wakeup(&pdev->dev, 0);
+        platform_set_drvdata(pdev, NULL);
 err_put_clk:
         clk_put(keypad->clk);
         samsung_keypad_dt_gpio_free(keypad);
@@ -499,6 +521,7 @@ static int __devexit samsung_keypad_remove(struct platform_device *pdev)
 {
         struct samsung_keypad *keypad = platform_get_drvdata(pdev);
 
+        pm_runtime_disable(&pdev->dev);
         device_init_wakeup(&pdev->dev, 0);
         platform_set_drvdata(pdev, NULL);
 
@@ -519,11 +542,57 @@ static int __devexit samsung_keypad_remove(struct platform_device *pdev)
         return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_RUNTIME
+static int samsung_keypad_runtime_suspend(struct device *dev)
+{
+        struct platform_device *pdev = to_platform_device(dev);
+        struct samsung_keypad *keypad = platform_get_drvdata(pdev);
+        unsigned int val;
+        int error;
+
+        if (keypad->stopped)
+                return 0;
+
+        /* This may fail on some SoCs due to lack of controller support */
+        error = enable_irq_wake(keypad->irq);
+        if (!error)
+                keypad->wake_enabled = true;
+
+        val = readl(keypad->base + SAMSUNG_KEYIFCON);
+        val |= SAMSUNG_KEYIFCON_WAKEUPEN;
+        writel(val, keypad->base + SAMSUNG_KEYIFCON);
+
+        clk_disable(keypad->clk);
+
+        return 0;
+}
+
+static int samsung_keypad_runtime_resume(struct device *dev)
+{
+        struct platform_device *pdev = to_platform_device(dev);
+        struct samsung_keypad *keypad = platform_get_drvdata(pdev);
+        unsigned int val;
+
+        if (keypad->stopped)
+                return 0;
+
+        clk_enable(keypad->clk);
+
+        val = readl(keypad->base + SAMSUNG_KEYIFCON);
+        val &= ~SAMSUNG_KEYIFCON_WAKEUPEN;
+        writel(val, keypad->base + SAMSUNG_KEYIFCON);
+
+        if (keypad->wake_enabled)
+                disable_irq_wake(keypad->irq);
+
+        return 0;
+}
+#endif
+
+#ifdef CONFIG_PM_SLEEP
 static void samsung_keypad_toggle_wakeup(struct samsung_keypad *keypad,
                                          bool enable)
 {
-        struct device *dev = keypad->input_dev->dev.parent;
         unsigned int val;
 
         clk_enable(keypad->clk);
@@ -531,11 +600,11 @@ static void samsung_keypad_toggle_wakeup(struct samsung_keypad *keypad,
         val = readl(keypad->base + SAMSUNG_KEYIFCON);
         if (enable) {
                 val |= SAMSUNG_KEYIFCON_WAKEUPEN;
-                if (device_may_wakeup(dev))
+                if (device_may_wakeup(&keypad->pdev->dev))
                         enable_irq_wake(keypad->irq);
         } else {
                 val &= ~SAMSUNG_KEYIFCON_WAKEUPEN;
-                if (device_may_wakeup(dev))
+                if (device_may_wakeup(&keypad->pdev->dev))
                         disable_irq_wake(keypad->irq);
         }
         writel(val, keypad->base + SAMSUNG_KEYIFCON);
@@ -578,12 +647,13 @@ static int samsung_keypad_resume(struct device *dev)
 
         return 0;
 }
+#endif
 
 static const struct dev_pm_ops samsung_keypad_pm_ops = {
-        .suspend        = samsung_keypad_suspend,
-        .resume         = samsung_keypad_resume,
+        SET_SYSTEM_SLEEP_PM_OPS(samsung_keypad_suspend, samsung_keypad_resume)
+        SET_RUNTIME_PM_OPS(samsung_keypad_runtime_suspend,
+                           samsung_keypad_runtime_resume, NULL)
 };
-#endif
 
 #ifdef CONFIG_OF
 static const struct of_device_id samsung_keypad_dt_match[] = {
@@ -615,27 +685,13 @@ static struct platform_driver samsung_keypad_driver = {
                 .name   = "samsung-keypad",
                 .owner  = THIS_MODULE,
                 .of_match_table = samsung_keypad_dt_match,
-#ifdef CONFIG_PM
                 .pm     = &samsung_keypad_pm_ops,
-#endif
         },
         .id_table       = samsung_keypad_driver_ids,
 };
-
-static int __init samsung_keypad_init(void)
-{
-        return platform_driver_register(&samsung_keypad_driver);
-}
-module_init(samsung_keypad_init);
-
-static void __exit samsung_keypad_exit(void)
-{
-        platform_driver_unregister(&samsung_keypad_driver);
-}
-module_exit(samsung_keypad_exit);
+module_platform_driver(samsung_keypad_driver);
 
 MODULE_DESCRIPTION("Samsung keypad driver");
 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
 MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:samsung-keypad");
diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c
index 934aeb583b30..da54ad5db154 100644
--- a/drivers/input/keyboard/sh_keysc.c
+++ b/drivers/input/keyboard/sh_keysc.c
@@ -337,19 +337,7 @@ static struct platform_driver sh_keysc_device_driver = {
                 .pm     = &sh_keysc_dev_pm_ops,
         }
 };
-
-static int __init sh_keysc_init(void)
-{
-        return platform_driver_register(&sh_keysc_device_driver);
-}
-
-static void __exit sh_keysc_exit(void)
-{
-        platform_driver_unregister(&sh_keysc_device_driver);
-}
-
-module_init(sh_keysc_init);
-module_exit(sh_keysc_exit);
+module_platform_driver(sh_keysc_device_driver);
 
 MODULE_AUTHOR("Magnus Damm");
 MODULE_DESCRIPTION("SuperH KEYSC Keypad Driver");
diff --git a/drivers/input/keyboard/spear-keyboard.c b/drivers/input/keyboard/spear-keyboard.c
index d712dffd2157..c88bd63dc9cc 100644
--- a/drivers/input/keyboard/spear-keyboard.c
+++ b/drivers/input/keyboard/spear-keyboard.c
@@ -326,18 +326,7 @@ static struct platform_driver spear_kbd_driver = {
 #endif
         },
 };
-
-static int __init spear_kbd_init(void)
-{
-        return platform_driver_register(&spear_kbd_driver);
-}
-module_init(spear_kbd_init);
-
-static void __exit spear_kbd_exit(void)
-{
-        platform_driver_unregister(&spear_kbd_driver);
-}
-module_exit(spear_kbd_exit);
+module_platform_driver(spear_kbd_driver);
 
 MODULE_AUTHOR("Rajeev Kumar");
 MODULE_DESCRIPTION("SPEAr Keyboard Driver");
diff --git a/drivers/input/keyboard/stmpe-keypad.c b/drivers/input/keyboard/stmpe-keypad.c
index ab7610ca10eb..9397cf9c625c 100644
--- a/drivers/input/keyboard/stmpe-keypad.c
+++ b/drivers/input/keyboard/stmpe-keypad.c
@@ -368,18 +368,7 @@ static struct platform_driver stmpe_keypad_driver = {
         .probe          = stmpe_keypad_probe,
         .remove         = __devexit_p(stmpe_keypad_remove),
 };
-
-static int __init stmpe_keypad_init(void)
-{
-        return platform_driver_register(&stmpe_keypad_driver);
-}
-module_init(stmpe_keypad_init);
-
-static void __exit stmpe_keypad_exit(void)
-{
-        platform_driver_unregister(&stmpe_keypad_driver);
-}
-module_exit(stmpe_keypad_exit);
+module_platform_driver(stmpe_keypad_driver);
 
 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("STMPExxxx keypad driver");
diff --git a/drivers/input/keyboard/tc3589x-keypad.c b/drivers/input/keyboard/tc3589x-keypad.c
index f60c9e82f204..2dee3e4e7c6f 100644
--- a/drivers/input/keyboard/tc3589x-keypad.c
+++ b/drivers/input/keyboard/tc3589x-keypad.c
@@ -74,11 +74,13 @@
 
 /**
  * struct tc_keypad - data structure used by keypad driver
+ * @tc3589x:    pointer to tc35893
  * @input:      pointer to input device object
  * @board:      keypad platform device
  * @krow:       number of rows
  * @kcol:       number of coloumns
  * @keymap:     matrix scan code table for keycodes
+ * @keypad_stopped: holds keypad status
  */
 struct tc_keypad {
         struct tc3589x *tc3589x;
@@ -453,18 +455,7 @@ static struct platform_driver tc3589x_keypad_driver = {
         .probe  = tc3589x_keypad_probe,
         .remove = __devexit_p(tc3589x_keypad_remove),
 };
-
-static int __init tc3589x_keypad_init(void)
-{
-        return platform_driver_register(&tc3589x_keypad_driver);
-}
-module_init(tc3589x_keypad_init);
-
-static void __exit tc3589x_keypad_exit(void)
-{
-        return platform_driver_unregister(&tc3589x_keypad_driver);
-}
-module_exit(tc3589x_keypad_exit);
+module_platform_driver(tc3589x_keypad_driver);
 
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Jayeeta Banerjee/Sundar Iyer");
diff --git a/drivers/input/keyboard/tca8418_keypad.c b/drivers/input/keyboard/tca8418_keypad.c
new file mode 100644
index 000000000000..958ec107bfbc
--- /dev/null
+++ b/drivers/input/keyboard/tca8418_keypad.c
@@ -0,0 +1,430 @@
+/*
+ * Driver for TCA8418 I2C keyboard
+ *
+ * Copyright (C) 2011 Fuel7, Inc.  All rights reserved.
+ *
+ * Author: Kyle Manna <kyle.manna@fuel7.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * 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 021110-1307, USA.
+ *
+ * If you can't comply with GPLv2, alternative licensing terms may be
+ * arranged. Please contact Fuel7, Inc. (http://fuel7.com/) for proprietary
+ * alternative licensing inquiries.
+ */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/workqueue.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/input/tca8418_keypad.h>
+
+/* TCA8418 hardware limits */
+#define TCA8418_MAX_ROWS        8
+#define TCA8418_MAX_COLS        10
+
+/* TCA8418 register offsets */
+#define REG_CFG                 0x01
+#define REG_INT_STAT            0x02
+#define REG_KEY_LCK_EC          0x03
+#define REG_KEY_EVENT_A         0x04
+#define REG_KEY_EVENT_B         0x05
+#define REG_KEY_EVENT_C         0x06
+#define REG_KEY_EVENT_D         0x07
+#define REG_KEY_EVENT_E         0x08
+#define REG_KEY_EVENT_F         0x09
+#define REG_KEY_EVENT_G         0x0A
+#define REG_KEY_EVENT_H         0x0B
+#define REG_KEY_EVENT_I         0x0C
+#define REG_KEY_EVENT_J         0x0D
+#define REG_KP_LCK_TIMER        0x0E
+#define REG_UNLOCK1             0x0F
+#define REG_UNLOCK2             0x10
+#define REG_GPIO_INT_STAT1      0x11
+#define REG_GPIO_INT_STAT2      0x12
+#define REG_GPIO_INT_STAT3      0x13
+#define REG_GPIO_DAT_STAT1      0x14
+#define REG_GPIO_DAT_STAT2      0x15
+#define REG_GPIO_DAT_STAT3      0x16
+#define REG_GPIO_DAT_OUT1       0x17
+#define REG_GPIO_DAT_OUT2       0x18
+#define REG_GPIO_DAT_OUT3       0x19
+#define REG_GPIO_INT_EN1        0x1A
+#define REG_GPIO_INT_EN2        0x1B
+#define REG_GPIO_INT_EN3        0x1C
+#define REG_KP_GPIO1            0x1D
+#define REG_KP_GPIO2            0x1E
+#define REG_KP_GPIO3            0x1F
+#define REG_GPI_EM1             0x20
+#define REG_GPI_EM2             0x21
+#define REG_GPI_EM3             0x22
+#define REG_GPIO_DIR1           0x23
+#define REG_GPIO_DIR2           0x24
+#define REG_GPIO_DIR3           0x25
+#define REG_GPIO_INT_LVL1       0x26
+#define REG_GPIO_INT_LVL2       0x27
+#define REG_GPIO_INT_LVL3       0x28
+#define REG_DEBOUNCE_DIS1       0x29
+#define REG_DEBOUNCE_DIS2       0x2A
+#define REG_DEBOUNCE_DIS3       0x2B
+#define REG_GPIO_PULL1          0x2C
+#define REG_GPIO_PULL2          0x2D
+#define REG_GPIO_PULL3          0x2E
+
+/* TCA8418 bit definitions */
+#define CFG_AI                  BIT(7)
+#define CFG_GPI_E_CFG           BIT(6)
+#define CFG_OVR_FLOW_M          BIT(5)
+#define CFG_INT_CFG             BIT(4)
+#define CFG_OVR_FLOW_IEN        BIT(3)
+#define CFG_K_LCK_IEN           BIT(2)
+#define CFG_GPI_IEN             BIT(1)
+#define CFG_KE_IEN              BIT(0)
+
+#define INT_STAT_CAD_INT        BIT(4)
+#define INT_STAT_OVR_FLOW_INT   BIT(3)
+#define INT_STAT_K_LCK_INT      BIT(2)
+#define INT_STAT_GPI_INT        BIT(1)
+#define INT_STAT_K_INT          BIT(0)
+
+/* TCA8418 register masks */
+#define KEY_LCK_EC_KEC          0x7
+#define KEY_EVENT_CODE          0x7f
+#define KEY_EVENT_VALUE         0x80
+
+
+static const struct i2c_device_id tca8418_id[] = {
+        { TCA8418_NAME, 8418, },
+        { }
+};
+MODULE_DEVICE_TABLE(i2c, tca8418_id);
+
+struct tca8418_keypad {
+        unsigned int rows;
+        unsigned int cols;
+        unsigned int keypad_mask; /* Mask for keypad col/rol regs */
+        unsigned int irq;
+        unsigned int row_shift;
+
+        struct i2c_client *client;
+        struct input_dev *input;
+
+        /* Flexible array member, must be at end of struct */
+        unsigned short keymap[];
+};
+
+/*
+ * Write a byte to the TCA8418
+ */
+static int tca8418_write_byte(struct tca8418_keypad *keypad_data,
+                              int reg, u8 val)
+{
+        int error;
+
+        error = i2c_smbus_write_byte_data(keypad_data->client, reg, val);
+        if (error < 0) {
+                dev_err(&keypad_data->client->dev,
+                        "%s failed, reg: %d, val: %d, error: %d\n",
+                        __func__, reg, val, error);
+                return error;
+        }
+
+        return 0;
+}
+
+/*
+ * Read a byte from the TCA8418
+ */
+static int tca8418_read_byte(struct tca8418_keypad *keypad_data,
+                             int reg, u8 *val)
+{
+        int error;
+
+        error = i2c_smbus_read_byte_data(keypad_data->client, reg);
+        if (error < 0) {
+                dev_err(&keypad_data->client->dev,
+                                "%s failed, reg: %d, error: %d\n",
+                                __func__, reg, error);
+                return error;
+        }
+
+        *val = (u8)error;
+
+        return 0;
+}
+
+static void tca8418_read_keypad(struct tca8418_keypad *keypad_data)
+{
+        int error, col, row;
+        u8 reg, state, code;
+
+        /* Initial read of the key event FIFO */
+        error = tca8418_read_byte(keypad_data, REG_KEY_EVENT_A, &reg);
+
+        /* Assume that key code 0 signifies empty FIFO */
+        while (error >= 0 && reg > 0) {
+                state = reg & KEY_EVENT_VALUE;
+                code  = reg & KEY_EVENT_CODE;
+
+                row = code / TCA8418_MAX_COLS;
+                col = code % TCA8418_MAX_COLS;
+
+                row = (col) ? row : row - 1;
+                col = (col) ? col - 1 : TCA8418_MAX_COLS - 1;
+
+                code = MATRIX_SCAN_CODE(row, col, keypad_data->row_shift);
+                input_event(keypad_data->input, EV_MSC, MSC_SCAN, code);
+                input_report_key(keypad_data->input,
+                                keypad_data->keymap[code], state);
+
+                /* Read for next loop */
+                error = tca8418_read_byte(keypad_data, REG_KEY_EVENT_A, &reg);
+        }
+
+        if (error < 0)
+                dev_err(&keypad_data->client->dev,
+                        "unable to read REG_KEY_EVENT_A\n");
+
+        input_sync(keypad_data->input);
+}
+
+/*
+ * Threaded IRQ handler and this can (and will) sleep.
+ */
+static irqreturn_t tca8418_irq_handler(int irq, void *dev_id)
+{
+        struct tca8418_keypad *keypad_data = dev_id;
+        u8 reg;
+        int error;
+
+        error = tca8418_read_byte(keypad_data, REG_INT_STAT, &reg);
+        if (error) {
+                dev_err(&keypad_data->client->dev,
+                        "unable to read REG_INT_STAT\n");
+                goto exit;
+        }
+
+        if (reg & INT_STAT_OVR_FLOW_INT)
+                dev_warn(&keypad_data->client->dev, "overflow occurred\n");
+
+        if (reg & INT_STAT_K_INT)
+                tca8418_read_keypad(keypad_data);
+
+exit:
+        /* Clear all interrupts, even IRQs we didn't check (GPI, CAD, LCK) */
+        reg = 0xff;
+        error = tca8418_write_byte(keypad_data, REG_INT_STAT, reg);
+        if (error)
+                dev_err(&keypad_data->client->dev,
+                        "unable to clear REG_INT_STAT\n");
+
+        return IRQ_HANDLED;
+}
+
+/*
+ * Configure the TCA8418 for keypad operation
+ */
+static int __devinit tca8418_configure(struct tca8418_keypad *keypad_data)
+{
+        int reg, error;
+
+        /* Write config register, if this fails assume device not present */
+        error = tca8418_write_byte(keypad_data, REG_CFG,
+                                CFG_INT_CFG | CFG_OVR_FLOW_IEN | CFG_KE_IEN);
+        if (error < 0)
+                return -ENODEV;
+
+
+        /* Assemble a mask for row and column registers */
+        reg  =  ~(~0 << keypad_data->rows);
+        reg += (~(~0 << keypad_data->cols)) << 8;
+        keypad_data->keypad_mask = reg;
+
+        /* Set registers to keypad mode */
+        error |= tca8418_write_byte(keypad_data, REG_KP_GPIO1, reg);
+        error |= tca8418_write_byte(keypad_data, REG_KP_GPIO2, reg >> 8);
+        error |= tca8418_write_byte(keypad_data, REG_KP_GPIO3, reg >> 16);
+
+        /* Enable column debouncing */
+        error |= tca8418_write_byte(keypad_data, REG_DEBOUNCE_DIS1, reg);
+        error |= tca8418_write_byte(keypad_data, REG_DEBOUNCE_DIS2, reg >> 8);
+        error |= tca8418_write_byte(keypad_data, REG_DEBOUNCE_DIS3, reg >> 16);
+
+        return error;
+}
+
+static int __devinit tca8418_keypad_probe(struct i2c_client *client,
+                                          const struct i2c_device_id *id)
+{
+        const struct tca8418_keypad_platform_data *pdata =
+                                                client->dev.platform_data;
+        struct tca8418_keypad *keypad_data;
+        struct input_dev *input;
+        int error, row_shift, max_keys;
+
+        /* Copy the platform data */
+        if (!pdata) {
+                dev_dbg(&client->dev, "no platform data\n");
+                return -EINVAL;
+        }
+
+        if (!pdata->keymap_data) {
+                dev_err(&client->dev, "no keymap data defined\n");
+                return -EINVAL;
+        }
+
+        if (!pdata->rows || pdata->rows > TCA8418_MAX_ROWS) {
+                dev_err(&client->dev, "invalid rows\n");
+                return -EINVAL;
+        }
+
+        if (!pdata->cols || pdata->cols > TCA8418_MAX_COLS) {
+                dev_err(&client->dev, "invalid columns\n");
+                return -EINVAL;
+        }
+
+        /* Check i2c driver capabilities */
+        if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE)) {
+                dev_err(&client->dev, "%s adapter not supported\n",
+                        dev_driver_string(&client->adapter->dev));
+                return -ENODEV;
+        }
+
+        row_shift = get_count_order(pdata->cols);
+        max_keys = pdata->rows << row_shift;
+
+        /* Allocate memory for keypad_data, keymap and input device */
+        keypad_data = kzalloc(sizeof(*keypad_data) +
+                        max_keys * sizeof(keypad_data->keymap[0]), GFP_KERNEL);
+        if (!keypad_data)
+                return -ENOMEM;
+
+        keypad_data->rows = pdata->rows;
+        keypad_data->cols = pdata->cols;
+        keypad_data->client = client;
+        keypad_data->row_shift = row_shift;
+
+        /* Initialize the chip or fail if chip isn't present */
+        error = tca8418_configure(keypad_data);
+        if (error < 0)
+                goto fail1;
+
+        /* Configure input device */
+        input = input_allocate_device();
+        if (!input) {
+                error = -ENOMEM;
+                goto fail1;
+        }
+        keypad_data->input = input;
+
+        input->name = client->name;
+        input->dev.parent = &client->dev;
+
+        input->id.bustype = BUS_I2C;
+        input->id.vendor  = 0x0001;
+        input->id.product = 0x001;
+        input->id.version = 0x0001;
+
+        input->keycode     = keypad_data->keymap;
+        input->keycodesize = sizeof(keypad_data->keymap[0]);
+        input->keycodemax  = max_keys;
+
+        __set_bit(EV_KEY, input->evbit);
+        if (pdata->rep)
+                __set_bit(EV_REP, input->evbit);
+
+        input_set_capability(input, EV_MSC, MSC_SCAN);
+
+        input_set_drvdata(input, keypad_data);
+
+        matrix_keypad_build_keymap(pdata->keymap_data, row_shift,
+                        input->keycode, input->keybit);
+
+        if (pdata->irq_is_gpio)
+                client->irq = gpio_to_irq(client->irq);
+
+        error = request_threaded_irq(client->irq, NULL, tca8418_irq_handler,
+                                     IRQF_TRIGGER_FALLING,
+                                     client->name, keypad_data);
+        if (error) {
+                dev_dbg(&client->dev,
+                        "Unable to claim irq %d; error %d\n",
+                        client->irq, error);
+                goto fail2;
+        }
+
+        error = input_register_device(input);
+        if (error) {
+                dev_dbg(&client->dev,
+                        "Unable to register input device, error: %d\n", error);
+                goto fail3;
+        }
+
+        i2c_set_clientdata(client, keypad_data);
+        return 0;
+
+fail3:
+        free_irq(client->irq, keypad_data);
+fail2:
+        input_free_device(input);
+fail1:
+        kfree(keypad_data);
+        return error;
+}
+
+static int __devexit tca8418_keypad_remove(struct i2c_client *client)
+{
+        struct tca8418_keypad *keypad_data = i2c_get_clientdata(client);
+
+        free_irq(keypad_data->client->irq, keypad_data);
+
+        input_unregister_device(keypad_data->input);
+
+        kfree(keypad_data);
+
+        return 0;
+}
+
+
+static struct i2c_driver tca8418_keypad_driver = {
+        .driver = {
+                .name   = TCA8418_NAME,
+                .owner  = THIS_MODULE,
+        },
+        .probe          = tca8418_keypad_probe,
+        .remove         = __devexit_p(tca8418_keypad_remove),
+        .id_table       = tca8418_id,
+};
+
+static int __init tca8418_keypad_init(void)
+{
+        return i2c_add_driver(&tca8418_keypad_driver);
+}
+subsys_initcall(tca8418_keypad_init);
+
+static void __exit tca8418_keypad_exit(void)
+{
+        i2c_del_driver(&tca8418_keypad_driver);
+}
+module_exit(tca8418_keypad_exit);
+
+MODULE_AUTHOR("Kyle Manna <kyle.manna@fuel7.com>");
+MODULE_DESCRIPTION("Keypad driver for TCA8418");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c
index cf3228b0ab90..a136e2e832be 100644
--- a/drivers/input/keyboard/tegra-kbc.c
+++ b/drivers/input/keyboard/tegra-kbc.c
@@ -26,6 +26,7 @@
 #include <linux/delay.h>
 #include <linux/io.h>
 #include <linux/interrupt.h>
+#include <linux/of.h>
 #include <linux/clk.h>
 #include <linux/slab.h>
 #include <mach/clk.h>
@@ -52,6 +53,7 @@
 /* KBC Interrupt Register */
 #define KBC_INT_0       0x4
 #define KBC_INT_FIFO_CNT_INT_STATUS     (1 << 2)
+#define KBC_INT_KEYPRESS_INT_STATUS     (1 << 0)
 
 #define KBC_ROW_CFG0_0  0x8
 #define KBC_COL_CFG0_0  0x18
@@ -74,15 +76,17 @@ struct tegra_kbc {
         unsigned int cp_to_wkup_dly;
         bool use_fn_map;
         bool use_ghost_filter;
+        bool keypress_caused_wake;
         const struct tegra_kbc_platform_data *pdata;
         unsigned short keycode[KBC_MAX_KEY * 2];
         unsigned short current_keys[KBC_MAX_KPENT];
         unsigned int num_pressed_keys;
+        u32 wakeup_key;
         struct timer_list timer;
         struct clk *clk;
 };
 
-static const u32 tegra_kbc_default_keymap[] = {
+static const u32 tegra_kbc_default_keymap[] __devinitdata = {
         KEY(0, 2, KEY_W),
         KEY(0, 3, KEY_S),
         KEY(0, 4, KEY_A),
@@ -217,7 +221,8 @@ static const u32 tegra_kbc_default_keymap[] = {
         KEY(31, 4, KEY_HELP),
 };
 
-static const struct matrix_keymap_data tegra_kbc_default_keymap_data = {
+static const
+struct matrix_keymap_data tegra_kbc_default_keymap_data __devinitdata = {
         .keymap         = tegra_kbc_default_keymap,
         .keymap_size    = ARRAY_SIZE(tegra_kbc_default_keymap),
 };
@@ -409,6 +414,9 @@ static irqreturn_t tegra_kbc_isr(int irq, void *args)
                  */
                 tegra_kbc_set_fifo_interrupt(kbc, false);
                 mod_timer(&kbc->timer, jiffies + kbc->cp_dly_jiffies);
+        } else if (val & KBC_INT_KEYPRESS_INT_STATUS) {
+                /* We can be here only through system resume path */
+                kbc->keypress_caused_wake = true;
         }
 
         spin_unlock_irqrestore(&kbc->lock, flags);
@@ -576,6 +584,56 @@ tegra_kbc_check_pin_cfg(const struct tegra_kbc_platform_data *pdata,
         return true;
 }
 
+#ifdef CONFIG_OF
+static struct tegra_kbc_platform_data * __devinit
+tegra_kbc_dt_parse_pdata(struct platform_device *pdev)
+{
+        struct tegra_kbc_platform_data *pdata;
+        struct device_node *np = pdev->dev.of_node;
+
+        if (!np)
+                return NULL;
+
+        pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
+        if (!pdata)
+                return NULL;
+
+        if (!of_property_read_u32(np, "debounce-delay", &prop))
+                pdata->debounce_cnt = prop;
+
+        if (!of_property_read_u32(np, "repeat-delay", &prop))
+                pdata->repeat_cnt = prop;
+
+        if (of_find_property(np, "needs-ghost-filter", NULL))
+                pdata->use_ghost_filter = true;
+
+        if (of_find_property(np, "wakeup-source", NULL))
+                pdata->wakeup = true;
+
+        /*
+         * All currently known keymaps with device tree support use the same
+         * pin_cfg, so set it up here.
+         */
+        for (i = 0; i < KBC_MAX_ROW; i++) {
+                pdata->pin_cfg[i].num = i;
+                pdata->pin_cfg[i].is_row = true;
+        }
+
+        for (i = 0; i < KBC_MAX_COL; i++) {
+                pdata->pin_cfg[KBC_MAX_ROW + i].num = i;
+                pdata->pin_cfg[KBC_MAX_ROW + i].is_row = false;
+        }
+
+        return pdata;
+}
+#else
+static inline struct tegra_kbc_platform_data *tegra_kbc_dt_parse_pdata(
+        struct platform_device *pdev)
+{
+        return NULL;
+}
+#endif
+
 static int __devinit tegra_kbc_probe(struct platform_device *pdev)
 {
         const struct tegra_kbc_platform_data *pdata = pdev->dev.platform_data;
@@ -590,21 +648,28 @@ static int __devinit tegra_kbc_probe(struct platform_device *pdev)
         unsigned int scan_time_rows;
 
         if (!pdata)
-                return -EINVAL;
+                pdata = tegra_kbc_dt_parse_pdata(pdev);
 
-        if (!tegra_kbc_check_pin_cfg(pdata, &pdev->dev, &num_rows))
+        if (!pdata)
                 return -EINVAL;
 
+        if (!tegra_kbc_check_pin_cfg(pdata, &pdev->dev, &num_rows)) {
+                err = -EINVAL;
+                goto err_free_pdata;
+        }
+
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         if (!res) {
                 dev_err(&pdev->dev, "failed to get I/O memory\n");
-                return -ENXIO;
+                err = -ENXIO;
+                goto err_free_pdata;
         }
 
         irq = platform_get_irq(pdev, 0);
         if (irq < 0) {
                 dev_err(&pdev->dev, "failed to get keyboard IRQ\n");
-                return -ENXIO;
+                err = -ENXIO;
+                goto err_free_pdata;
         }
 
         kbc = kzalloc(sizeof(*kbc), GFP_KERNEL);
@@ -674,9 +739,10 @@ static int __devinit tegra_kbc_probe(struct platform_device *pdev)
         keymap_data = pdata->keymap_data ?: &tegra_kbc_default_keymap_data;
         matrix_keypad_build_keymap(keymap_data, KBC_ROW_SHIFT,
                                    input_dev->keycode, input_dev->keybit);
+        kbc->wakeup_key = pdata->wakeup_key;
 
-        err = request_irq(kbc->irq, tegra_kbc_isr, IRQF_TRIGGER_HIGH,
-                          pdev->name, kbc);
+        err = request_irq(kbc->irq, tegra_kbc_isr,
+                          IRQF_NO_SUSPEND | IRQF_TRIGGER_HIGH, pdev->name, kbc);
         if (err) {
                 dev_err(&pdev->dev, "failed to request keyboard IRQ\n");
                 goto err_put_clk;
@@ -706,6 +772,9 @@ err_free_mem_region:
 err_free_mem:
         input_free_device(input_dev);
         kfree(kbc);
+err_free_pdata:
+        if (!pdev->dev.platform_data)
+                kfree(pdata);
 
         return err;
 }
@@ -715,6 +784,8 @@ static int __devexit tegra_kbc_remove(struct platform_device *pdev)
         struct tegra_kbc *kbc = platform_get_drvdata(pdev);
         struct resource *res;
 
+        platform_set_drvdata(pdev, NULL);
+
         free_irq(kbc->irq, pdev);
         clk_put(kbc->clk);
 
@@ -723,9 +794,14 @@ static int __devexit tegra_kbc_remove(struct platform_device *pdev)
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         release_mem_region(res->start, resource_size(res));
 
-        kfree(kbc);
+        /*
+         * If we do not have platform data attached to the device we
+         * allocated it ourselves and thus need to free it.
+         */
+        if (!pdev->dev.platform_data)
+                kfree(kbc->pdata);
 
-        platform_set_drvdata(pdev, NULL);
+        kfree(kbc);
 
         return 0;
 }
@@ -754,6 +830,8 @@ static int tegra_kbc_suspend(struct device *dev)
                 tegra_kbc_setup_wakekeys(kbc, true);
                 msleep(30);
 
+                kbc->keypress_caused_wake = false;
+                enable_irq(kbc->irq);
                 enable_irq_wake(kbc->irq);
         } else {
                 if (kbc->idev->users)
@@ -780,7 +858,19 @@ static int tegra_kbc_resume(struct device *dev)
 
                 tegra_kbc_set_fifo_interrupt(kbc, true);
 
-                enable_irq(kbc->irq);
+                if (kbc->keypress_caused_wake && kbc->wakeup_key) {
+                        /*
+                         * We can't report events directly from the ISR
+                         * because timekeeping is stopped when processing
+                         * wakeup request and we get a nasty warning when
+                         * we try to call do_gettimeofday() in evdev
+                         * handler.
+                         */
+                        input_report_key(kbc->idev, kbc->wakeup_key, 1);
+                        input_sync(kbc->idev);
+                        input_report_key(kbc->idev, kbc->wakeup_key, 0);
+                        input_sync(kbc->idev);
+                }
         } else {
                 if (kbc->idev->users)
                         err = tegra_kbc_start(kbc);
@@ -793,6 +883,12 @@ static int tegra_kbc_resume(struct device *dev)
 
 static SIMPLE_DEV_PM_OPS(tegra_kbc_pm_ops, tegra_kbc_suspend, tegra_kbc_resume);
 
+static const struct of_device_id tegra_kbc_of_match[] = {
+        { .compatible = "nvidia,tegra20-kbc", },
+        { },
+};
+MODULE_DEVICE_TABLE(of, tegra_kbc_of_match);
+
 static struct platform_driver tegra_kbc_driver = {
         .probe          = tegra_kbc_probe,
         .remove         = __devexit_p(tegra_kbc_remove),
@@ -800,20 +896,10 @@ static struct platform_driver tegra_kbc_driver = {
                 .name   = "tegra-kbc",
                 .owner  = THIS_MODULE,
                 .pm     = &tegra_kbc_pm_ops,
+                .of_match_table = tegra_kbc_of_match,
         },
 };
-
-static void __exit tegra_kbc_exit(void)
-{
-        platform_driver_unregister(&tegra_kbc_driver);
-}
-module_exit(tegra_kbc_exit);
-
-static int __init tegra_kbc_init(void)
-{
-        return platform_driver_register(&tegra_kbc_driver);
-}
-module_init(tegra_kbc_init);
+module_platform_driver(tegra_kbc_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Rakesh Iyer <riyer@nvidia.com>");
diff --git a/drivers/input/keyboard/tnetv107x-keypad.c b/drivers/input/keyboard/tnetv107x-keypad.c
index 66e55e5cfdd6..fb39c94b6fdd 100644
--- a/drivers/input/keyboard/tnetv107x-keypad.c
+++ b/drivers/input/keyboard/tnetv107x-keypad.c
@@ -322,19 +322,7 @@ static struct platform_driver keypad_driver = {
         .driver.name    = "tnetv107x-keypad",
         .driver.owner   = THIS_MODULE,
 };
-
-static int __init keypad_init(void)
-{
-        return platform_driver_register(&keypad_driver);
-}
-
-static void __exit keypad_exit(void)
-{
-        platform_driver_unregister(&keypad_driver);
-}
-
-module_init(keypad_init);
-module_exit(keypad_exit);
+module_platform_driver(keypad_driver);
 
 MODULE_AUTHOR("Cyril Chemparathy");
 MODULE_DESCRIPTION("TNETV107X Keypad Driver");
diff --git a/drivers/input/keyboard/twl4030_keypad.c b/drivers/input/keyboard/twl4030_keypad.c
index a26922cf0e84..a588578037eb 100644
--- a/drivers/input/keyboard/twl4030_keypad.c
+++ b/drivers/input/keyboard/twl4030_keypad.c
@@ -460,18 +460,7 @@ static struct platform_driver twl4030_kp_driver = {
                 .owner  = THIS_MODULE,
         },
 };
-
-static int __init twl4030_kp_init(void)
-{
-        return platform_driver_register(&twl4030_kp_driver);
-}
-module_init(twl4030_kp_init);
-
-static void __exit twl4030_kp_exit(void)
-{
-        platform_driver_unregister(&twl4030_kp_driver);
-}
-module_exit(twl4030_kp_exit);
+module_platform_driver(twl4030_kp_driver);
 
 MODULE_AUTHOR("Texas Instruments");
 MODULE_DESCRIPTION("TWL4030 Keypad Driver");
diff --git a/drivers/input/keyboard/w90p910_keypad.c b/drivers/input/keyboard/w90p910_keypad.c
index 318586dadacf..99bbb7e775ae 100644
--- a/drivers/input/keyboard/w90p910_keypad.c
+++ b/drivers/input/keyboard/w90p910_keypad.c
@@ -262,19 +262,7 @@ static struct platform_driver w90p910_keypad_driver = {
                 .owner  = THIS_MODULE,
         },
 };
-
-static int __init w90p910_keypad_init(void)
-{
-        return platform_driver_register(&w90p910_keypad_driver);
-}
-
-static void __exit w90p910_keypad_exit(void)
-{
-        platform_driver_unregister(&w90p910_keypad_driver);
-}
-
-module_init(w90p910_keypad_init);
-module_exit(w90p910_keypad_exit);
+module_platform_driver(w90p910_keypad_driver);
 
 MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");
 MODULE_DESCRIPTION("w90p910 keypad driver");