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:
  MAINTAINERS - Add an entry for the input MT protocol
  Input: wacom - fix serial number handling on Cintiq 21UX2
  Input: fixup X86_MRST selects
  Input: sysrq - fix "stuck" SysRq mode
  Input: ad7877 - fix spi word size to 16 bit
  Input: pcf8574_keypad - fix off by one in pcf8574_kp_irq_handler()

7 files changed, 28 insertions, 9 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index b15f01e3a0d..78758e12a81 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2887,6 +2887,13 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git
 S:	Maintained
 F:	drivers/input/
 
+INPUT MULTITOUCH (MT) PROTOCOL
+M:	Henrik Rydberg <rydberg@euromail.se>
+L:	linux-input@vger.kernel.org
+S:	Maintained
+F:	Documentation/input/multi-touch-protocol.txt
+K:	\b(ABS|SYN)_MT_
+
 INTEL IDLE DRIVER
 M:	Len Brown <lenb@kernel.org>
 L:	linux-pm@lists.linux-foundation.org
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 5d15630a583..5d64e3acb00 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -580,8 +580,12 @@ static bool sysrq_filter(struct input_handle *handle, unsigned int type,
 	case KEY_RIGHTALT:
 		if (value)
 			sysrq_alt = code;
-		else if (sysrq_down && code == sysrq_alt_use)
-			sysrq_down = false;
+		else {
+			if (sysrq_down && code == sysrq_alt_use)
+				sysrq_down = false;
+
+			sysrq_alt = 0;
+		}
 		break;
 
 	case KEY_SYSRQ:
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index d8fa5d724c5..0f9a4785d79 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -69,7 +69,7 @@ config KEYBOARD_ATARI
 	  module will be called atakbd.
 
 config KEYBOARD_ATKBD
-	tristate "AT keyboard" if EMBEDDED || !X86
+	tristate "AT keyboard" if EMBEDDED || !X86 || X86_MRST
 	default y
 	select SERIO
 	select SERIO_LIBPS2
diff --git a/drivers/input/misc/pcf8574_keypad.c b/drivers/input/misc/pcf8574_keypad.c
index 0ac47d2898e..4b42ffc0532 100644
--- a/drivers/input/misc/pcf8574_keypad.c
+++ b/drivers/input/misc/pcf8574_keypad.c
@@ -69,7 +69,7 @@ static irqreturn_t pcf8574_kp_irq_handler(int irq, void *dev_id)
 	unsigned char nextstate = read_state(lp);
 
 	if (lp->laststate != nextstate) {
-		int key_down = nextstate <= ARRAY_SIZE(lp->btncode);
+		int key_down = nextstate < ARRAY_SIZE(lp->btncode);
 		unsigned short keycode = key_down ?
 			lp->btncode[nextstate] : lp->btncode[lp->laststate];
 
diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig
index 3bfe8fafc6a..256b9e9394d 100644
--- a/drivers/input/serio/Kconfig
+++ b/drivers/input/serio/Kconfig
@@ -22,7 +22,7 @@ config SERIO_I8042
 	tristate "i8042 PC Keyboard controller" if EMBEDDED || !X86
 	default y
 	depends on !PARISC && (!ARM || ARCH_SHARK || FOOTBRIDGE_HOST) && \
-		   (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN
+		   (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN && !X86_MRST
 	help
 	  i8042 is the chip over which the standard AT keyboard and PS/2
 	  mouse are connected to the computer. If you use these devices,
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index d564af58175..415f6306105 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -284,12 +284,13 @@ static int wacom_intuos_inout(struct wacom_wac *wacom)
 			(data[4] << 20) + (data[5] << 12) +
 			(data[6] << 4) + (data[7] >> 4);
 
-		wacom->id[idx] = (data[2] << 4) | (data[3] >> 4);
+		wacom->id[idx] = (data[2] << 4) | (data[3] >> 4) |
+			((data[7] & 0x0f) << 20) | ((data[8] & 0xf0) << 12);
 
-		switch (wacom->id[idx]) {
+		switch (wacom->id[idx] & 0xfffff) {
 		case 0x812: /* Inking pen */
 		case 0x801: /* Intuos3 Inking pen */
-		case 0x20802: /* Intuos4 Classic Pen */
+		case 0x20802: /* Intuos4 Inking Pen */
 		case 0x012:
 			wacom->tool[idx] = BTN_TOOL_PENCIL;
 			break;
@@ -513,7 +514,7 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
 			input_report_abs(input, ABS_RX, ((data[1] & 0x1f) << 8) | data[2]);
 			input_report_abs(input, ABS_RY, ((data[3] & 0x1f) << 8) | data[4]);
 
-			if ((data[5] & 0x1f) | (data[6] & 0x1f) | (data[1] & 0x1f) |
+			if ((data[5] & 0x1f) | data[6] | (data[1] & 0x1f) |
 				data[2] | (data[3] & 0x1f) | data[4] | data[8] |
 				(data[7] & 0x01)) {
 				input_report_key(input, wacom->tool[1], 1);
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
index 0d2d7e54b46..5f0221cffef 100644
--- a/drivers/input/touchscreen/ad7877.c
+++ b/drivers/input/touchscreen/ad7877.c
@@ -679,6 +679,13 @@ static int __devinit ad7877_probe(struct spi_device *spi)
 		return -EINVAL;
 	}
 
+	spi->bits_per_word = 16;
+	err = spi_setup(spi);
+	if (err) {
+		dev_dbg(&spi->dev, "spi master doesn't support 16 bits/word\n");
+		return err;
+	}
+
 	ts = kzalloc(sizeof(struct ad7877), GFP_KERNEL);
 	input_dev = input_allocate_device();
 	if (!ts || !input_dev) {