Merge branch 'next' into for-linus

Prepare first set of updates for 3.9 merge window.

34 files changed, 3314 insertions, 1043 deletions

diff --git a/drivers/input/Kconfig b/drivers/input/Kconfig
index 55f7e57d4e42..38b523a1ece0 100644
--- a/drivers/input/Kconfig
+++ b/drivers/input/Kconfig
@@ -3,7 +3,7 @@
 #
 
 menu "Input device support"
-	depends on !S390 && !UML
+	depends on !UML
 
 config INPUT
 	tristate "Generic input layer (needed for keyboard, mouse, ...)" if EXPERT
diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c
index c2f436ce7f5b..53eaf89f2db5 100644
--- a/drivers/input/input-mt.c
+++ b/drivers/input/input-mt.c
@@ -18,6 +18,7 @@ static void copy_abs(struct input_dev *dev, unsigned int dst, unsigned int src)
 {
 	if (dev->absinfo && test_bit(src, dev->absbit)) {
 		dev->absinfo[dst] = dev->absinfo[src];
+		dev->absinfo[dst].fuzz = 0;
 		dev->absbit[BIT_WORD(dst)] |= BIT_MASK(dst);
 	}
 }
diff --git a/drivers/input/joystick/walkera0701.c b/drivers/input/joystick/walkera0701.c
index f8f892b076e8..b76ac580703c 100644
--- a/drivers/input/joystick/walkera0701.c
+++ b/drivers/input/joystick/walkera0701.c
@@ -12,7 +12,7 @@
  * the Free Software Foundation.
 */
 
-/* #define WK0701_DEBUG */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #define RESERVE 20000
 #define SYNC_PULSE 1306000
@@ -67,6 +67,7 @@ static inline void walkera0701_parse_frame(struct walkera_dev *w)
 {
 	int i;
 	int val1, val2, val3, val4, val5, val6, val7, val8;
+	int magic, magic_bit;
 	int crc1, crc2;
 
 	for (crc1 = crc2 = i = 0; i < 10; i++) {
@@ -102,17 +103,12 @@ static inline void walkera0701_parse_frame(struct walkera_dev *w)
 	val8 = (w->buf[18] & 1) << 8 | (w->buf[19] << 4) | w->buf[20];
 	val8 *= (w->buf[18] & 2) - 1;	/*sign */
 
-#ifdef WK0701_DEBUG
-	{
-		int magic, magic_bit;
-		magic = (w->buf[21] << 4) | w->buf[22];
-		magic_bit = (w->buf[24] & 8) >> 3;
-		printk(KERN_DEBUG
-		       "walkera0701: %4d %4d %4d %4d  %4d %4d %4d %4d (magic %2x %d)\n",
-		       val1, val2, val3, val4, val5, val6, val7, val8, magic,
-		       magic_bit);
-	}
-#endif
+	magic = (w->buf[21] << 4) | w->buf[22];
+	magic_bit = (w->buf[24] & 8) >> 3;
+	pr_debug("%4d %4d %4d %4d  %4d %4d %4d %4d (magic %2x %d)\n",
+		 val1, val2, val3, val4, val5, val6, val7, val8,
+		 magic, magic_bit);
+
 	input_report_abs(w->input_dev, ABS_X, val2);
 	input_report_abs(w->input_dev, ABS_Y, val1);
 	input_report_abs(w->input_dev, ABS_Z, val6);
@@ -187,6 +183,9 @@ static int walkera0701_open(struct input_dev *dev)
 {
 	struct walkera_dev *w = input_get_drvdata(dev);
 
+	if (parport_claim(w->pardevice))
+		return -EBUSY;
+
 	parport_enable_irq(w->parport);
 	return 0;
 }
@@ -197,40 +196,51 @@ static void walkera0701_close(struct input_dev *dev)
 
 	parport_disable_irq(w->parport);
 	hrtimer_cancel(&w->timer);
+
+	parport_release(w->pardevice);
 }
 
 static int walkera0701_connect(struct walkera_dev *w, int parport)
 {
-	int err = -ENODEV;
+	int error;
 
 	w->parport = parport_find_number(parport);
-	if (w->parport == NULL)
+	if (!w->parport) {
+		pr_err("parport %d does not exist\n", parport);
 		return -ENODEV;
+	}
 
 	if (w->parport->irq == -1) {
-		printk(KERN_ERR "walkera0701: parport without interrupt\n");
-		goto init_err;
+		pr_err("parport %d does not have interrupt assigned\n",
+			parport);
+		error = -EINVAL;
+		goto err_put_parport;
 	}
 
-	err = -EBUSY;
 	w->pardevice = parport_register_device(w->parport, "walkera0701",
 				    NULL, NULL, walkera0701_irq_handler,
 				    PARPORT_DEV_EXCL, w);
-	if (!w->pardevice)
-		goto init_err;
-
-	if (parport_negotiate(w->pardevice->port, IEEE1284_MODE_COMPAT))
-		goto init_err1;
+	if (!w->pardevice) {
+		pr_err("failed to register parport device\n");
+		error = -EIO;
+		goto err_put_parport;
+	}
 
-	if (parport_claim(w->pardevice))
-		goto init_err1;
+	if (parport_negotiate(w->pardevice->port, IEEE1284_MODE_COMPAT)) {
+		pr_err("failed to negotiate parport mode\n");
+		error = -EIO;
+		goto err_unregister_device;
+	}
 
 	hrtimer_init(&w->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	w->timer.function = timer_handler;
 
 	w->input_dev = input_allocate_device();
-	if (!w->input_dev)
-		goto init_err2;
+	if (!w->input_dev) {
+		pr_err("failed to allocate input device\n");
+		error = -ENOMEM;
+		goto err_unregister_device;
+	}
 
 	input_set_drvdata(w->input_dev, w);
 	w->input_dev->name = "Walkera WK-0701 TX";
@@ -241,6 +251,7 @@ static int walkera0701_connect(struct walkera_dev *w, int parport)
 	w->input_dev->id.vendor = 0x0001;
 	w->input_dev->id.product = 0x0001;
 	w->input_dev->id.version = 0x0100;
+	w->input_dev->dev.parent = w->parport->dev;
 	w->input_dev->open = walkera0701_open;
 	w->input_dev->close = walkera0701_close;
 
@@ -254,27 +265,26 @@ static int walkera0701_connect(struct walkera_dev *w, int parport)
 	input_set_abs_params(w->input_dev, ABS_RUDDER, -512, 512, 0, 0);
 	input_set_abs_params(w->input_dev, ABS_MISC, -512, 512, 0, 0);
 
-	err = input_register_device(w->input_dev);
-	if (err)
-		goto init_err3;
+	error = input_register_device(w->input_dev);
+	if (error) {
+		pr_err("failed to register input device\n");
+		goto err_free_input_dev;
+	}
 
 	return 0;
 
- init_err3:
+err_free_input_dev:
 	input_free_device(w->input_dev);
- init_err2:
-	parport_release(w->pardevice);
- init_err1:
+err_unregister_device:
 	parport_unregister_device(w->pardevice);
- init_err:
+err_put_parport:
 	parport_put_port(w->parport);
-	return err;
+	return error;
 }
 
 static void walkera0701_disconnect(struct walkera_dev *w)
 {
 	input_unregister_device(w->input_dev);
-	parport_release(w->pardevice);
 	parport_unregister_device(w->pardevice);
 	parport_put_port(w->parport);
 }
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 48309641b1b2..992137cf3a64 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -224,7 +224,7 @@ config KEYBOARD_TCA6416
 
 config KEYBOARD_TCA8418
 	tristate "TCA8418 Keypad Support"
-	depends on I2C
+	depends on I2C && GENERIC_HARDIRQS
 	select INPUT_MATRIXKMAP
 	help
 	  This driver implements basic keypad functionality
@@ -303,7 +303,7 @@ config KEYBOARD_HP7XX
 
 config KEYBOARD_LM8323
 	tristate "LM8323 keypad chip"
-	depends on I2C
+	depends on I2C && GENERIC_HARDIRQS
 	depends on LEDS_CLASS
 	help
 	  If you say yes here you get support for the National Semiconductor
@@ -420,7 +420,7 @@ config KEYBOARD_NOMADIK
 
 config KEYBOARD_TEGRA
 	tristate "NVIDIA Tegra internal matrix keyboard controller support"
-	depends on ARCH_TEGRA
+	depends on ARCH_TEGRA && OF
 	select INPUT_MATRIXKMAP
 	help
 	  Say Y here if you want to use a matrix keyboard connected directly
@@ -479,6 +479,16 @@ config KEYBOARD_SAMSUNG
 	  To compile this driver as a module, choose M here: the
 	  module will be called samsung-keypad.
 
+config KEYBOARD_GOLDFISH_EVENTS
+	depends on GOLDFISH
+	tristate "Generic Input Event device for Goldfish"
+	help
+	  Say Y here to get an input event device for the Goldfish virtual
+	  device emulator.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called goldfish-events.
+
 config KEYBOARD_STOWAWAY
 	tristate "Stowaway keyboard"
 	select SERIO
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index 44e76002f54b..49b16453d00e 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_KEYBOARD_ATKBD)		+= atkbd.o
 obj-$(CONFIG_KEYBOARD_BFIN)		+= bf54x-keys.o
 obj-$(CONFIG_KEYBOARD_DAVINCI)		+= davinci_keyscan.o
 obj-$(CONFIG_KEYBOARD_EP93XX)		+= ep93xx_keypad.o
+obj-$(CONFIG_KEYBOARD_GOLDFISH_EVENTS)	+= goldfish_events.o
 obj-$(CONFIG_KEYBOARD_GPIO)		+= gpio_keys.o
 obj-$(CONFIG_KEYBOARD_GPIO_POLLED)	+= gpio_keys_polled.o
 obj-$(CONFIG_KEYBOARD_TCA6416)		+= tca6416-keypad.o
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index add5ffd9fe26..2626773ff29b 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -676,6 +676,39 @@ static inline void atkbd_disable(struct atkbd *atkbd)
 	serio_continue_rx(atkbd->ps2dev.serio);
 }
 
+static int atkbd_activate(struct atkbd *atkbd)
+{
+	struct ps2dev *ps2dev = &atkbd->ps2dev;
+
+/*
+ * Enable the keyboard to receive keystrokes.
+ */
+
+	if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) {
+		dev_err(&ps2dev->serio->dev,
+			"Failed to enable keyboard on %s\n",
+			ps2dev->serio->phys);
+		return -1;
+	}
+
+	return 0;
+}
+
+/*
+ * atkbd_deactivate() resets and disables the keyboard from sending
+ * keystrokes.
+ */
+
+static void atkbd_deactivate(struct atkbd *atkbd)
+{
+	struct ps2dev *ps2dev = &atkbd->ps2dev;
+
+	if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_DIS))
+		dev_err(&ps2dev->serio->dev,
+			"Failed to deactivate keyboard on %s\n",
+			ps2dev->serio->phys);
+}
+
 /*
  * atkbd_probe() probes for an AT keyboard on a serio port.
  */
@@ -726,11 +759,17 @@ static int atkbd_probe(struct atkbd *atkbd)
 
 	if (atkbd->id == 0xaca1 && atkbd->translated) {
 		dev_err(&ps2dev->serio->dev,
-			"NCD terminal keyboards are only supported on non-translating controlelrs. "
+			"NCD terminal keyboards are only supported on non-translating controllers. "
 			"Use i8042.direct=1 to disable translation.\n");
 		return -1;
 	}
 
+/*
+ * Make sure nothing is coming from the keyboard and disturbs our
+ * internal state.
+ */
+	atkbd_deactivate(atkbd);
+
 	return 0;
 }
 
@@ -825,24 +864,6 @@ static int atkbd_reset_state(struct atkbd *atkbd)
 	return 0;
 }
 
-static int atkbd_activate(struct atkbd *atkbd)
-{
-	struct ps2dev *ps2dev = &atkbd->ps2dev;
-
-/*
- * Enable the keyboard to receive keystrokes.
- */
-
-	if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) {
-		dev_err(&ps2dev->serio->dev,
-			"Failed to enable keyboard on %s\n",
-			ps2dev->serio->phys);
-		return -1;
-	}
-
-	return 0;
-}
-
 /*
  * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
  * reboot.
@@ -1150,7 +1171,6 @@ static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
 
 		atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
 		atkbd_reset_state(atkbd);
-		atkbd_activate(atkbd);
 
 	} else {
 		atkbd->set = 2;
@@ -1165,6 +1185,8 @@ static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
 		goto fail3;
 
 	atkbd_enable(atkbd);
+	if (serio->write)
+		atkbd_activate(atkbd);
 
 	err = input_register_device(atkbd->dev);
 	if (err)
@@ -1208,8 +1230,6 @@ static int atkbd_reconnect(struct serio *serio)
 		if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
 			goto out;
 
-		atkbd_activate(atkbd);
-
 		/*
 		 * Restore LED state and repeat rate. While input core
 		 * will do this for us at resume time reconnect may happen
@@ -1223,7 +1243,17 @@ static int atkbd_reconnect(struct serio *serio)
 
 	}
 
+	/*
+	 * Reset our state machine in case reconnect happened in the middle
+	 * of multi-byte scancode.
+	 */
+	atkbd->xl_bit = 0;
+	atkbd->emul = 0;
+
 	atkbd_enable(atkbd);
+	if (atkbd->write)
+		atkbd_activate(atkbd);
+
 	retval = 0;
 
  out:
diff --git a/drivers/input/keyboard/goldfish_events.c b/drivers/input/keyboard/goldfish_events.c
new file mode 100644
index 000000000000..9f60a2ec88db
--- /dev/null
+++ b/drivers/input/keyboard/goldfish_events.c
@@ -0,0 +1,194 @@
+/*
+ * Copyright (C) 2007 Google, Inc.
+ * Copyright (C) 2012 Intel, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/types.h>
+#include <linux/input.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+
+enum {
+	REG_READ        = 0x00,
+	REG_SET_PAGE    = 0x00,
+	REG_LEN         = 0x04,
+	REG_DATA        = 0x08,
+
+	PAGE_NAME       = 0x00000,
+	PAGE_EVBITS     = 0x10000,
+	PAGE_ABSDATA    = 0x20000 | EV_ABS,
+};
+
+struct event_dev {
+	struct input_dev *input;
+	int irq;
+	void __iomem *addr;
+	char name[0];
+};
+
+static irqreturn_t events_interrupt(int irq, void *dev_id)
+{
+	struct event_dev *edev = dev_id;
+	unsigned type, code, value;
+
+	type = __raw_readl(edev->addr + REG_READ);
+	code = __raw_readl(edev->addr + REG_READ);
+	value = __raw_readl(edev->addr + REG_READ);
+
+	input_event(edev->input, type, code, value);
+	input_sync(edev->input);
+	return IRQ_HANDLED;
+}
+
+static void events_import_bits(struct event_dev *edev,
+			unsigned long bits[], unsigned type, size_t count)
+{
+	void __iomem *addr = edev->addr;
+	int i, j;
+	size_t size;
+	uint8_t val;
+
+	__raw_writel(PAGE_EVBITS | type, addr + REG_SET_PAGE);
+
+	size = __raw_readl(addr + REG_LEN) * 8;
+	if (size < count)
+		count = size;
+
+	addr += REG_DATA;
+	for (i = 0; i < count; i += 8) {
+		val = __raw_readb(addr++);
+		for (j = 0; j < 8; j++)
+			if (val & 1 << j)
+				set_bit(i + j, bits);
+	}
+}
+
+static void events_import_abs_params(struct event_dev *edev)
+{
+	struct input_dev *input_dev = edev->input;
+	void __iomem *addr = edev->addr;
+	u32 val[4];
+	int count;
+	int i, j;
+
+	__raw_writel(PAGE_ABSDATA, addr + REG_SET_PAGE);
+
+	count = __raw_readl(addr + REG_LEN) / sizeof(val);
+	if (count > ABS_MAX)
+		count = ABS_MAX;
+
+	for (i = 0; i < count; i++) {
+		if (!test_bit(i, input_dev->absbit))
+			continue;
+
+		for (j = 0; j < ARRAY_SIZE(val); j++) {
+			int offset = (i * ARRAY_SIZE(val) + j) * sizeof(u32);
+			val[j] = __raw_readl(edev->addr + REG_DATA + offset);
+		}
+
+		input_set_abs_params(input_dev, i,
+				     val[0], val[1], val[2], val[3]);
+	}
+}
+
+static int events_probe(struct platform_device *pdev)
+{
+	struct input_dev *input_dev;
+	struct event_dev *edev;
+	struct resource *res;
+	unsigned keymapnamelen;
+	void __iomem *addr;
+	int irq;
+	int i;
+	int error;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return -EINVAL;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -EINVAL;
+
+	addr = devm_ioremap(&pdev->dev, res->start, 4096);
+	if (!addr)
+		return -ENOMEM;
+
+	__raw_writel(PAGE_NAME, addr + REG_SET_PAGE);
+	keymapnamelen = __raw_readl(addr + REG_LEN);
+
+	edev = devm_kzalloc(&pdev->dev,
+			    sizeof(struct event_dev) + keymapnamelen + 1,
+			    GFP_KERNEL);
+	if (!edev)
+		return -ENOMEM;
+
+	input_dev = devm_input_allocate_device(&pdev->dev);
+	if (!input_dev)
+		return -ENOMEM;
+
+	edev->input = input_dev;
+	edev->addr = addr;
+	edev->irq = irq;
+
+	for (i = 0; i < keymapnamelen; i++)
+		edev->name[i] = __raw_readb(edev->addr + REG_DATA + i);
+
+	pr_debug("events_probe() keymap=%s\n", edev->name);
+
+	input_dev->name = edev->name;
+	input_dev->id.bustype = BUS_HOST;
+
+	events_import_bits(edev, input_dev->evbit, EV_SYN, EV_MAX);
+	events_import_bits(edev, input_dev->keybit, EV_KEY, KEY_MAX);
+	events_import_bits(edev, input_dev->relbit, EV_REL, REL_MAX);
+	events_import_bits(edev, input_dev->absbit, EV_ABS, ABS_MAX);
+	events_import_bits(edev, input_dev->mscbit, EV_MSC, MSC_MAX);
+	events_import_bits(edev, input_dev->ledbit, EV_LED, LED_MAX);
+	events_import_bits(edev, input_dev->sndbit, EV_SND, SND_MAX);
+	events_import_bits(edev, input_dev->ffbit, EV_FF, FF_MAX);
+	events_import_bits(edev, input_dev->swbit, EV_SW, SW_MAX);
+
+	events_import_abs_params(edev);
+
+	error = devm_request_irq(&pdev->dev, edev->irq, events_interrupt, 0,
+				 "goldfish-events-keypad", edev);
+	if (error)
+		return error;
+
+	error = input_register_device(input_dev);
+	if (error)
+		return error;
+
+	return 0;
+}
+
+static struct platform_driver events_driver = {
+	.probe	= events_probe,
+	.driver	= {
+		.owner	= THIS_MODULE,
+		.name	= "goldfish_events",
+	},
+};
+
+module_platform_driver(events_driver);
+
+MODULE_AUTHOR("Brian Swetland");
+MODULE_DESCRIPTION("Goldfish Event Device");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/imx_keypad.c b/drivers/input/keyboard/imx_keypad.c
index 6d150e3e1f55..98f9113251d2 100644
--- a/drivers/input/keyboard/imx_keypad.c
+++ b/drivers/input/keyboard/imx_keypad.c
@@ -20,6 +20,7 @@
 #include <linux/jiffies.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/timer.h>
@@ -414,15 +415,23 @@ open_err:
 	return -EIO;
 }
 
+#ifdef CONFIG_OF
+static struct of_device_id imx_keypad_of_match[] = {
+	{ .compatible = "fsl,imx21-kpp", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, imx_keypad_of_match);
+#endif
+
 static int imx_keypad_probe(struct platform_device *pdev)
 {
 	const struct matrix_keymap_data *keymap_data = pdev->dev.platform_data;
 	struct imx_keypad *keypad;
 	struct input_dev *input_dev;
 	struct resource *res;
-	int irq, error, i;
+	int irq, error, i, row, col;
 
-	if (keymap_data == NULL) {
+	if (!keymap_data && !pdev->dev.of_node) {
 		dev_err(&pdev->dev, "no keymap defined\n");
 		return -EINVAL;
 	}
@@ -480,22 +489,6 @@ static int imx_keypad_probe(struct platform_device *pdev)
 		goto failed_unmap;
 	}
 
-	/* Search for rows and cols enabled */
-	for (i = 0; i < keymap_data->keymap_size; i++) {
-		keypad->rows_en_mask |= 1 << KEY_ROW(keymap_data->keymap[i]);
-		keypad->cols_en_mask |= 1 << KEY_COL(keymap_data->keymap[i]);
-	}
-
-	if (keypad->rows_en_mask > ((1 << MAX_MATRIX_KEY_ROWS) - 1) ||
-	    keypad->cols_en_mask > ((1 << MAX_MATRIX_KEY_COLS) - 1)) {
-		dev_err(&pdev->dev,
-			"invalid key data (too many rows or colums)\n");
-		error = -EINVAL;
-		goto failed_clock_put;
-	}
-	dev_dbg(&pdev->dev, "enabled rows mask: %x\n", keypad->rows_en_mask);
-	dev_dbg(&pdev->dev, "enabled cols mask: %x\n", keypad->cols_en_mask);
-
 	/* Init the Input device */
 	input_dev->name = pdev->name;
 	input_dev->id.bustype = BUS_HOST;
@@ -512,6 +505,19 @@ static int imx_keypad_probe(struct platform_device *pdev)
 		goto failed_clock_put;
 	}
 
+	/* Search for rows and cols enabled */
+	for (row = 0; row < MAX_MATRIX_KEY_ROWS; row++) {
+		for (col = 0; col < MAX_MATRIX_KEY_COLS; col++) {
+			i = MATRIX_SCAN_CODE(row, col, MATRIX_ROW_SHIFT);
+			if (keypad->keycodes[i] != KEY_RESERVED) {
+				keypad->rows_en_mask |= 1 << row;
+				keypad->cols_en_mask |= 1 << col;
+			}
+		}
+	}
+	dev_dbg(&pdev->dev, "enabled rows mask: %x\n", keypad->rows_en_mask);
+	dev_dbg(&pdev->dev, "enabled cols mask: %x\n", keypad->cols_en_mask);
+
 	__set_bit(EV_REP, input_dev->evbit);
 	input_set_capability(input_dev, EV_MSC, MSC_SCAN);
 	input_set_drvdata(input_dev, keypad);
@@ -631,6 +637,7 @@ static struct platform_driver imx_keypad_driver = {
 		.name	= "imx-keypad",
 		.owner	= THIS_MODULE,
 		.pm	= &imx_kbd_pm_ops,
+		.of_match_table = of_match_ptr(imx_keypad_of_match),
 	},
 	.probe		= imx_keypad_probe,
 	.remove		= imx_keypad_remove,
diff --git a/drivers/input/keyboard/qt2160.c b/drivers/input/keyboard/qt2160.c
index 3dc2b0f27b0c..1c0ddad0a1cc 100644
--- a/drivers/input/keyboard/qt2160.c
+++ b/drivers/input/keyboard/qt2160.c
@@ -20,6 +20,7 @@
 
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/leds.h>
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/jiffies.h>
@@ -39,6 +40,11 @@
 #define QT2160_CMD_GPIOS      6
 #define QT2160_CMD_SUBVER     7
 #define QT2160_CMD_CALIBRATE  10
+#define QT2160_CMD_DRIVE_X    70
+#define QT2160_CMD_PWMEN_X    74
+#define QT2160_CMD_PWM_DUTY   76
+
+#define QT2160_NUM_LEDS_X	8
 
 #define QT2160_CYCLE_INTERVAL	(2*HZ)
 
@@ -49,6 +55,17 @@ static unsigned char qt2160_key2code[] = {
 	KEY_C, KEY_D, KEY_E, KEY_F,
 };
 
+#ifdef CONFIG_LEDS_CLASS
+struct qt2160_led {
+	struct qt2160_data *qt2160;
+	struct led_classdev cdev;
+	struct work_struct work;
+	char name[32];
+	int id;
+	enum led_brightness new_brightness;
+};
+#endif
+
 struct qt2160_data {
 	struct i2c_client *client;
 	struct input_dev *input;
@@ -56,8 +73,61 @@ struct qt2160_data {
 	spinlock_t lock;        /* Protects canceling/rescheduling of dwork */
 	unsigned short keycodes[ARRAY_SIZE(qt2160_key2code)];
 	u16 key_matrix;
+#ifdef CONFIG_LEDS_CLASS
+	struct qt2160_led leds[QT2160_NUM_LEDS_X];
+	struct mutex led_lock;
+#endif
 };
 
+static int qt2160_read(struct i2c_client *client, u8 reg);
+static int qt2160_write(struct i2c_client *client, u8 reg, u8 data);
+
+#ifdef CONFIG_LEDS_CLASS
+
+static void qt2160_led_work(struct work_struct *work)
+{
+	struct qt2160_led *led = container_of(work, struct qt2160_led, work);
+	struct qt2160_data *qt2160 = led->qt2160;
+	struct i2c_client *client = qt2160->client;
+	int value = led->new_brightness;
+	u32 drive, pwmen;
+
+	mutex_lock(&qt2160->led_lock);
+
+	drive = qt2160_read(client, QT2160_CMD_DRIVE_X);
+	pwmen = qt2160_read(client, QT2160_CMD_PWMEN_X);
+	if (value != LED_OFF) {
+		drive |= (1 << led->id);
+		pwmen |= (1 << led->id);
+
+	} else {
+		drive &= ~(1 << led->id);
+		pwmen &= ~(1 << led->id);
+	}
+	qt2160_write(client, QT2160_CMD_DRIVE_X, drive);
+	qt2160_write(client, QT2160_CMD_PWMEN_X, pwmen);
+
+	/*
+	 * Changing this register will change the brightness
+	 * of every LED in the qt2160. It's a HW limitation.
+	 */
+	if (value != LED_OFF)
+		qt2160_write(client, QT2160_CMD_PWM_DUTY, value);
+
+	mutex_unlock(&qt2160->led_lock);
+}
+
+static void qt2160_led_set(struct led_classdev *cdev,
+			   enum led_brightness value)
+{
+	struct qt2160_led *led = container_of(cdev, struct qt2160_led, cdev);
+
+	led->new_brightness = value;
+	schedule_work(&led->work);
+}
+
+#endif /* CONFIG_LEDS_CLASS */
+
 static int qt2160_read_block(struct i2c_client *client,
 			     u8 inireg, u8 *buffer, unsigned int count)
 {
@@ -216,6 +286,63 @@ static int qt2160_write(struct i2c_client *client, u8 reg, u8 data)
 	return ret;
 }
 
+#ifdef CONFIG_LEDS_CLASS
+
+static int qt2160_register_leds(struct qt2160_data *qt2160)
+{
+	struct i2c_client *client = qt2160->client;
+	int ret;
+	int i;
+
+	mutex_init(&qt2160->led_lock);
+
+	for (i = 0; i < QT2160_NUM_LEDS_X; i++) {
+		struct qt2160_led *led = &qt2160->leds[i];
+
+		snprintf(led->name, sizeof(led->name), "qt2160:x%d", i);
+		led->cdev.name = led->name;
+		led->cdev.brightness_set = qt2160_led_set;
+		led->cdev.brightness = LED_OFF;
+		led->id = i;
+		led->qt2160 = qt2160;
+
+		INIT_WORK(&led->work, qt2160_led_work);
+
+		ret = led_classdev_register(&client->dev, &led->cdev);
+		if (ret < 0)
+			return ret;
+	}
+
+	/* Tur off LEDs */
+	qt2160_write(client, QT2160_CMD_DRIVE_X, 0);
+	qt2160_write(client, QT2160_CMD_PWMEN_X, 0);
+	qt2160_write(client, QT2160_CMD_PWM_DUTY, 0);
+
+	return 0;
+}
+
+static void qt2160_unregister_leds(struct qt2160_data *qt2160)
+{
+	int i;
+
+	for (i = 0; i < QT2160_NUM_LEDS_X; i++) {
+		led_classdev_unregister(&qt2160->leds[i].cdev);
+		cancel_work_sync(&qt2160->leds[i].work);
+	}
+}
+
+#else
+
+static inline int qt2160_register_leds(struct qt2160_data *qt2160)
+{
+	return 0;
+}
+
+static inline void qt2160_unregister_leds(struct qt2160_data *qt2160)
+{
+}
+
+#endif
 
 static bool qt2160_identify(struct i2c_client *client)
 {
@@ -249,7 +376,7 @@ static bool qt2160_identify(struct i2c_client *client)
 }
 
 static int qt2160_probe(struct i2c_client *client,
-				  const struct i2c_device_id *id)
+			const struct i2c_device_id *id)
 {
 	struct qt2160_data *qt2160;
 	struct input_dev *input;
@@ -314,11 +441,17 @@ static int qt2160_probe(struct i2c_client *client,
 		}
 	}
 
+	error = qt2160_register_leds(qt2160);
+	if (error) {
+		dev_err(&client->dev, "Failed to register leds\n");
+		goto err_free_irq;