Merge branch 'master' into next

Conflicts:
	security/keys/keyring.c

Resolved conflict with whitespace fix in find_keyring_by_name()

Signed-off-by: James Morris <jmorris@namei.org>

41 files changed, 508 insertions, 196 deletions

diff --git a/Documentation/DocBook/libata.tmpl b/Documentation/DocBook/libata.tmpl
index ba997577150..ff3e5bec1c2 100644
--- a/Documentation/DocBook/libata.tmpl
+++ b/Documentation/DocBook/libata.tmpl
@@ -107,10 +107,6 @@ void (*dev_config) (struct ata_port *, struct ata_device *);
 	issue of SET FEATURES - XFER MODE, and prior to operation.
 	</para>
 	<para>
-	Called by ata_device_add() after ata_dev_identify() determines
-	a device is present.
-	</para>
-	<para>
 	This entry may be specified as NULL in ata_port_operations.
 	</para>
 
@@ -154,8 +150,8 @@ unsigned int (*mode_filter) (struct ata_port *, struct ata_device *, unsigned in
 
 	<sect2><title>Taskfile read/write</title>
 	<programlisting>
-void (*tf_load) (struct ata_port *ap, struct ata_taskfile *tf);
-void (*tf_read) (struct ata_port *ap, struct ata_taskfile *tf);
+void (*sff_tf_load) (struct ata_port *ap, struct ata_taskfile *tf);
+void (*sff_tf_read) (struct ata_port *ap, struct ata_taskfile *tf);
 	</programlisting>
 
 	<para>
@@ -164,36 +160,35 @@ void (*tf_read) (struct ata_port *ap, struct ata_taskfile *tf);
 	hardware registers / DMA buffers, to obtain the current set of
 	taskfile register values.
 	Most drivers for taskfile-based hardware (PIO or MMIO) use
-	ata_tf_load() and ata_tf_read() for these hooks.
+	ata_sff_tf_load() and ata_sff_tf_read() for these hooks.
 	</para>
 
 	</sect2>
 
 	<sect2><title>PIO data read/write</title>
 	<programlisting>
-void (*data_xfer) (struct ata_device *, unsigned char *, unsigned int, int);
+void (*sff_data_xfer) (struct ata_device *, unsigned char *, unsigned int, int);
 	</programlisting>
 
 	<para>
 All bmdma-style drivers must implement this hook.  This is the low-level
 operation that actually copies the data bytes during a PIO data
 transfer.
-Typically the driver
-will choose one of ata_pio_data_xfer_noirq(), ata_pio_data_xfer(), or
-ata_mmio_data_xfer().
+Typically the driver will choose one of ata_sff_data_xfer_noirq(),
+ata_sff_data_xfer(), or ata_sff_data_xfer32().
 	</para>
 
 	</sect2>
 
 	<sect2><title>ATA command execute</title>
 	<programlisting>
-void (*exec_command)(struct ata_port *ap, struct ata_taskfile *tf);
+void (*sff_exec_command)(struct ata_port *ap, struct ata_taskfile *tf);
 	</programlisting>
 
 	<para>
 	causes an ATA command, previously loaded with
 	->tf_load(), to be initiated in hardware.
-	Most drivers for taskfile-based hardware use ata_exec_command()
+	Most drivers for taskfile-based hardware use ata_sff_exec_command()
 	for this hook.
 	</para>
 
@@ -218,8 +213,8 @@ command.
 
 	<sect2><title>Read specific ATA shadow registers</title>
 	<programlisting>
-u8   (*check_status)(struct ata_port *ap);
-u8   (*check_altstatus)(struct ata_port *ap);
+u8   (*sff_check_status)(struct ata_port *ap);
+u8   (*sff_check_altstatus)(struct ata_port *ap);
 	</programlisting>
 
 	<para>
@@ -227,20 +222,14 @@ u8   (*check_altstatus)(struct ata_port *ap);
 	hardware.  On some hardware, reading the Status register has
 	the side effect of clearing the interrupt condition.
 	Most drivers for taskfile-based hardware use
-	ata_check_status() for this hook.
-	</para>
-	<para>
-	Note that because this is called from ata_device_add(), at
-	least a dummy function that clears device interrupts must be
-	provided for all drivers, even if the controller doesn't
-	actually have a taskfile status register.
+	ata_sff_check_status() for this hook.
 	</para>
 
 	</sect2>
 
 	<sect2><title>Select ATA device on bus</title>
 	<programlisting>
-void (*dev_select)(struct ata_port *ap, unsigned int device);
+void (*sff_dev_select)(struct ata_port *ap, unsigned int device);
 	</programlisting>
 
 	<para>
@@ -251,9 +240,7 @@ void (*dev_select)(struct ata_port *ap, unsigned int device);
 	</para>
 	<para>
 	Most drivers for taskfile-based hardware use
-	ata_std_dev_select() for this hook.  Controllers which do not
-	support second drives on a port (such as SATA contollers) will
-	use ata_noop_dev_select().
+	ata_sff_dev_select() for this hook.
 	</para>
 
 	</sect2>
@@ -441,13 +428,13 @@ void (*irq_clear) (struct ata_port *);
 	to struct ata_host_set.
 	</para>
 	<para>
-	Most legacy IDE drivers use ata_interrupt() for the
+	Most legacy IDE drivers use ata_sff_interrupt() for the
 	irq_handler hook, which scans all ports in the host_set,
 	determines which queued command was active (if any), and calls
-	ata_host_intr(ap,qc).
+	ata_sff_host_intr(ap,qc).
 	</para>
 	<para>
-	Most legacy IDE drivers use ata_bmdma_irq_clear() for the
+	Most legacy IDE drivers use ata_sff_irq_clear() for the
 	irq_clear() hook, which simply clears the interrupt and error
 	flags in the DMA status register.
 	</para>
@@ -496,10 +483,6 @@ void (*host_stop) (struct ata_host_set *host_set);
 	data from port at this time.
 	</para>
 	<para>
-	Many drivers use ata_port_stop() as this hook, which frees the
-	PRD table.
-	</para>
-	<para>
 	->host_stop() is called after all ->port_stop() calls
 have completed.  The hook must finalize hardware shutdown, release DMA
 and other resources, etc.
diff --git a/Documentation/input/elantech.txt b/Documentation/input/elantech.txt
index a10c3b6ba7c..56941ae1f5d 100644
--- a/Documentation/input/elantech.txt
+++ b/Documentation/input/elantech.txt
@@ -333,14 +333,14 @@ byte 0:
 byte 1:
 
    bit   7   6   5   4   3   2   1   0
-        x15 x14 x13 x12 x11 x10 x9  x8
+         .   .   .   .   .  x10 x9  x8
 
 byte 2:
 
    bit   7   6   5   4   3   2   1   0
         x7  x6  x5  x4  x4  x2  x1  x0
 
-         x15..x0 = absolute x value (horizontal)
+         x10..x0 = absolute x value (horizontal)
 
 byte 3:
 
@@ -350,14 +350,14 @@ byte 3:
 byte 4:
 
    bit   7   6   5   4   3   2   1   0
-        y15 y14 y13 y12 y11 y10 y8  y8
+         .   .   .   .   .   .  y9  y8
 
 byte 5:
 
    bit   7   6   5   4   3   2   1   0
         y7  y6  y5  y4  y3  y2  y1  y0
 
-         y15..y0 = absolute y value (vertical)
+         y9..y0 = absolute y value (vertical)
 
 
 4.2.2 Two finger touch
diff --git a/crypto/async_tx/async_raid6_recov.c b/crypto/async_tx/async_raid6_recov.c
index 943f2abac9b..ce038d861eb 100644
--- a/crypto/async_tx/async_raid6_recov.c
+++ b/crypto/async_tx/async_raid6_recov.c
@@ -324,6 +324,7 @@ struct dma_async_tx_descriptor *
 async_raid6_2data_recov(int disks, size_t bytes, int faila, int failb,
 			struct page **blocks, struct async_submit_ctl *submit)
 {
+	void *scribble = submit->scribble;
 	int non_zero_srcs, i;
 
 	BUG_ON(faila == failb);
@@ -332,11 +333,13 @@ async_raid6_2data_recov(int disks, size_t bytes, int faila, int failb,
 
 	pr_debug("%s: disks: %d len: %zu\n", __func__, disks, bytes);
 
-	/* we need to preserve the contents of 'blocks' for the async
-	 * case, so punt to synchronous if a scribble buffer is not available
+	/* if a dma resource is not available or a scribble buffer is not
+	 * available punt to the synchronous path.  In the 'dma not
+	 * available' case be sure to use the scribble buffer to
+	 * preserve the content of 'blocks' as the caller intended.
 	 */
-	if (!submit->scribble) {
-		void **ptrs = (void **) blocks;
+	if (!async_dma_find_channel(DMA_PQ) || !scribble) {
+		void **ptrs = scribble ? scribble : (void **) blocks;
 
 		async_tx_quiesce(&submit->depend_tx);
 		for (i = 0; i < disks; i++)
@@ -406,11 +409,13 @@ async_raid6_datap_recov(int disks, size_t bytes, int faila,
 
 	pr_debug("%s: disks: %d len: %zu\n", __func__, disks, bytes);
 
-	/* we need to preserve the contents of 'blocks' for the async
-	 * case, so punt to synchronous if a scribble buffer is not available
+	/* if a dma resource is not available or a scribble buffer is not
+	 * available punt to the synchronous path.  In the 'dma not
+	 * available' case be sure to use the scribble buffer to
+	 * preserve the content of 'blocks' as the caller intended.
 	 */
-	if (!scribble) {
-		void **ptrs = (void **) blocks;
+	if (!async_dma_find_channel(DMA_PQ) || !scribble) {
+		void **ptrs = scribble ? scribble : (void **) blocks;
 
 		async_tx_quiesce(&submit->depend_tx);
 		for (i = 0; i < disks; i++)
diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c
index 4164dd244dd..d94b8f0bd74 100644
--- a/drivers/ata/pata_pcmcia.c
+++ b/drivers/ata/pata_pcmcia.c
@@ -424,7 +424,7 @@ static struct pcmcia_device_id pcmcia_devices[] = {
 	PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
 	PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
 	PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
-	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x3e520e17),
+	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x55d5bffb),
 	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 4GB", 0x2e6d1829, 0x531e7d10),
 	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
 	PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2      ", 0x547e66dc, 0x8671043b),
@@ -446,7 +446,7 @@ static struct pcmcia_device_id pcmcia_devices[] = {
 	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
 	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
 	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
-	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x9351e59d),
+	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x7558f133),
 	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS8GCF133", 0x709b1bf1, 0xb2f89b47),
 	PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
 	PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
diff --git a/drivers/ide/ide-cs.c b/drivers/ide/ide-cs.c
index defce2877ee..b85450865ff 100644
--- a/drivers/ide/ide-cs.c
+++ b/drivers/ide/ide-cs.c
@@ -409,7 +409,7 @@ static struct pcmcia_device_id ide_ids[] = {
 	PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
 	PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
 	PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
-	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x3e520e17),
+	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x55d5bffb),
 	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 4GB", 0x2e6d1829, 0x531e7d10),
 	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
 	PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2      ", 0x547e66dc, 0x8671043b),
@@ -431,7 +431,7 @@ static struct pcmcia_device_id ide_ids[] = {
 	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
 	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
 	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
-	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x9351e59d),
+	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x7558f133),
 	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS8GCF133", 0x709b1bf1, 0xb2f89b47),
 	PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
 	PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index c52bec4d053..423e0e6031a 100644
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -929,6 +929,24 @@ static const struct input_device_id joydev_ids[] = {
 		.evbit = { BIT_MASK(EV_ABS) },
 		.absbit = { BIT_MASK(ABS_THROTTLE) },
 	},
+	{
+		.flags = INPUT_DEVICE_ID_MATCH_EVBIT |
+				INPUT_DEVICE_ID_MATCH_KEYBIT,
+		.evbit = { BIT_MASK(EV_KEY) },
+		.keybit = {[BIT_WORD(BTN_JOYSTICK)] = BIT_MASK(BTN_JOYSTICK) },
+	},
+	{
+		.flags = INPUT_DEVICE_ID_MATCH_EVBIT |
+				INPUT_DEVICE_ID_MATCH_KEYBIT,
+		.evbit = { BIT_MASK(EV_KEY) },
+		.keybit = { [BIT_WORD(BTN_GAMEPAD)] = BIT_MASK(BTN_GAMEPAD) },
+	},
+	{
+		.flags = INPUT_DEVICE_ID_MATCH_EVBIT |
+				INPUT_DEVICE_ID_MATCH_KEYBIT,
+		.evbit = { BIT_MASK(EV_KEY) },
+		.keybit = { [BIT_WORD(BTN_TRIGGER_HAPPY)] = BIT_MASK(BTN_TRIGGER_HAPPY) },
+	},
 	{ }	/* Terminating entry */
 };
 
diff --git a/drivers/input/misc/ati_remote.c b/drivers/input/misc/ati_remote.c
index 614b65d78fe..e8bbc619f6d 100644
--- a/drivers/input/misc/ati_remote.c
+++ b/drivers/input/misc/ati_remote.c
@@ -98,10 +98,12 @@
  * Module and Version Information, Module Parameters
  */
 
-#define ATI_REMOTE_VENDOR_ID	0x0bc7
-#define ATI_REMOTE_PRODUCT_ID	0x004
-#define LOLA_REMOTE_PRODUCT_ID	0x002
-#define MEDION_REMOTE_PRODUCT_ID 0x006
+#define ATI_REMOTE_VENDOR_ID		0x0bc7
+#define LOLA_REMOTE_PRODUCT_ID		0x0002
+#define LOLA2_REMOTE_PRODUCT_ID		0x0003
+#define ATI_REMOTE_PRODUCT_ID		0x0004
+#define NVIDIA_REMOTE_PRODUCT_ID	0x0005
+#define MEDION_REMOTE_PRODUCT_ID	0x0006
 
 #define DRIVER_VERSION	        "2.2.1"
 #define DRIVER_AUTHOR           "Torrey Hoffman <thoffman@arnor.net>"
@@ -142,8 +144,10 @@ MODULE_PARM_DESC(repeat_delay, "Delay before sending repeats, default = 500 msec
 #define err(format, arg...) printk(KERN_ERR format , ## arg)
 
 static struct usb_device_id ati_remote_table[] = {
-	{ USB_DEVICE(ATI_REMOTE_VENDOR_ID, ATI_REMOTE_PRODUCT_ID) },
 	{ USB_DEVICE(ATI_REMOTE_VENDOR_ID, LOLA_REMOTE_PRODUCT_ID) },
+	{ USB_DEVICE(ATI_REMOTE_VENDOR_ID, LOLA2_REMOTE_PRODUCT_ID) },
+	{ USB_DEVICE(ATI_REMOTE_VENDOR_ID, ATI_REMOTE_PRODUCT_ID) },
+	{ USB_DEVICE(ATI_REMOTE_VENDOR_ID, NVIDIA_REMOTE_PRODUCT_ID) },
 	{ USB_DEVICE(ATI_REMOTE_VENDOR_ID, MEDION_REMOTE_PRODUCT_ID) },
 	{}	/* Terminating entry */
 };
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 0d22cb9ce42..99d58764ef0 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -64,7 +64,6 @@ static const struct alps_model_info alps_model_data[] = {
 	{ { 0x62, 0x02, 0x14 }, 0xcf, 0xcf,
 		ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED },
 	{ { 0x73, 0x02, 0x50 }, 0xcf, 0xcf, ALPS_FOUR_BUTTONS },	  /* Dell Vostro 1400 */
-	{ { 0x73, 0x02, 0x64 }, 0xf8, 0xf8, 0 },			  /* HP Pavilion dm3 */
 	{ { 0x52, 0x01, 0x14 }, 0xff, 0xff,
 		ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED },	  /* Toshiba Tecra A11-11L */
 };
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index a138b5da79f..0520c2e1992 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -25,6 +25,10 @@
 			printk(KERN_DEBUG format, ##arg);	\
 	} while (0)
 
+static bool force_elantech;
+module_param_named(force_elantech, force_elantech, bool, 0644);
+MODULE_PARM_DESC(force_elantech, "Force the Elantech PS/2 protocol extension to be used, 1 = enabled, 0 = disabled (default).");
+
 /*
  * Send a Synaptics style sliced query command
  */
@@ -182,13 +186,17 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse)
 	static int old_fingers;
 
 	if (etd->fw_version_maj == 0x01) {
-		/* byte 0:  D   U  p1  p2   1  p3   R   L
-		   byte 1:  f   0  th  tw  x9  x8  y9  y8 */
+		/*
+		 * byte 0:  D   U  p1  p2   1  p3   R   L
+		 * byte 1:  f   0  th  tw  x9  x8  y9  y8
+		 */
 		fingers = ((packet[1] & 0x80) >> 7) +
 				((packet[1] & 0x30) >> 4);
 	} else {
-		/* byte 0: n1  n0  p2  p1   1  p3   R   L
-		   byte 1:  0   0   0   0  x9  x8  y9  y8 */
+		/*
+		 * byte 0: n1  n0  p2  p1   1  p3   R   L
+		 * byte 1:  0   0   0   0  x9  x8  y9  y8
+		 */
 		fingers = (packet[0] & 0xc0) >> 6;
 	}
 
@@ -202,13 +210,15 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse)
 
 	input_report_key(dev, BTN_TOUCH, fingers != 0);
 
-	/* byte 2: x7  x6  x5  x4  x3  x2  x1  x0
-	   byte 3: y7  y6  y5  y4  y3  y2  y1  y0 */
+	/*
+	 * byte 2: x7  x6  x5  x4  x3  x2  x1  x0
+	 * byte 3: y7  y6  y5  y4  y3  y2  y1  y0
+	 */
 	if (fingers) {
 		input_report_abs(dev, ABS_X,
 			((packet[1] & 0x0c) << 6) | packet[2]);
-		input_report_abs(dev, ABS_Y, ETP_YMAX_V1 -
-			(((packet[1] & 0x03) << 8) | packet[3]));
+		input_report_abs(dev, ABS_Y,
+			ETP_YMAX_V1 - (((packet[1] & 0x03) << 8) | packet[3]));
 	}
 
 	input_report_key(dev, BTN_TOOL_FINGER, fingers == 1);
@@ -247,34 +257,47 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse)
 
 	switch (fingers) {
 	case 1:
-		/* byte 1: x15 x14 x13 x12 x11 x10 x9  x8
-		   byte 2: x7  x6  x5  x4  x4  x2  x1  x0 */
-		input_report_abs(dev, ABS_X, (packet[1] << 8) | packet[2]);
-		/* byte 4: y15 y14 y13 y12 y11 y10 y8  y8
-		   byte 5: y7  y6  y5  y4  y3  y2  y1  y0 */
-		input_report_abs(dev, ABS_Y, ETP_YMAX_V2 -
-			((packet[4] << 8) | packet[5]));
+		/*
+		 * byte 1:  .   .   .   .   .  x10 x9  x8
+		 * byte 2: x7  x6  x5  x4  x4  x2  x1  x0
+		 */
+		input_report_abs(dev, ABS_X,
+			((packet[1] & 0x07) << 8) | packet[2]);
+		/*
+		 * byte 4:  .   .   .   .   .   .  y9  y8
+		 * byte 5: y7  y6  y5  y4  y3  y2  y1  y0
+		 */
+		input_report_abs(dev, ABS_Y,
+			ETP_YMAX_V2 - (((packet[4] & 0x03) << 8) | packet[5]));
 		break;
 
 	case 2:
-		/* The coordinate of each finger is reported separately with
-		   a lower resolution for two finger touches */
-		/* byte 0:  .   .  ay8 ax8  .   .   .   .
-		   byte 1: ax7 ax6 ax5 ax4 ax3 ax2 ax1 ax0 */
+		/*
+		 * The coordinate of each finger is reported separately
+		 * with a lower resolution for two finger touches:
+		 * byte 0:  .   .  ay8 ax8  .   .   .   .
+		 * byte 1: ax7 ax6 ax5 ax4 ax3 ax2 ax1 ax0
+		 */
 		x1 = ((packet[0] & 0x10) << 4) | packet[1];
 		/* byte 2: ay7 ay6 ay5 ay4 ay3 ay2 ay1 ay0 */
 		y1 = ETP_2FT_YMAX - (((packet[0] & 0x20) << 3) | packet[2]);
-		/* byte 3:  .   .  by8 bx8  .   .   .   .
-		   byte 4: bx7 bx6 bx5 bx4 bx3 bx2 bx1 bx0 */
+		/*
+		 * byte 3:  .   .  by8 bx8  .   .   .   .
+		 * byte 4: bx7 bx6 bx5 bx4 bx3 bx2 bx1 bx0
+		 */
 		x2 = ((packet[3] & 0x10) << 4) | packet[4];
 		/* byte 5: by7 by8 by5 by4 by3 by2 by1 by0 */
 		y2 = ETP_2FT_YMAX - (((packet[3] & 0x20) << 3) | packet[5]);
-		/* For compatibility with the X Synaptics driver scale up one
-		   coordinate and report as ordinary mouse movent */
+		/*
+		 * For compatibility with the X Synaptics driver scale up
+		 * one coordinate and report as ordinary mouse movent
+		 */
 		input_report_abs(dev, ABS_X, x1 << 2);
 		input_report_abs(dev, ABS_Y, y1 << 2);
-		/* For compatibility with the proprietary X Elantech driver
-		   report both coordinates as hat coordinates */
+		/*
+		 * For compatibility with the proprietary X Elantech driver
+		 * report both coordinates as hat coordinates
+		 */
 		input_report_abs(dev, ABS_HAT0X, x1);
 		input_report_abs(dev, ABS_HAT0Y, y1);
 		input_report_abs(dev, ABS_HAT1X, x2);
@@ -596,8 +619,12 @@ int elantech_detect(struct psmouse *psmouse, bool set_properties)
 		 param[0], param[1], param[2]);
 
 	if (param[0] == 0 || param[1] != 0) {
-		pr_debug("elantech.c: Probably not a real Elantech touchpad. Aborting.\n");
-		return -1;
+		if (!force_elantech) {
+			pr_debug("elantech.c: Probably not a real Elantech touchpad. Aborting.\n");
+			return -1;
+		}
+
+		pr_debug("elantech.c: Probably not a real Elantech touchpad. Enabling anyway due to force_elantech.\n");
 	}
 
 	if (set_properties) {
@@ -666,7 +693,8 @@ int elantech_init(struct psmouse *psmouse)
 	 * Assume every version greater than this is new EeePC style
 	 * hardware with 6 byte packets
 	 */
-	if (etd->fw_version_maj >= 0x02 && etd->fw_version_min >= 0x30) {
+	if ((etd->fw_version_maj == 0x02 && etd->fw_version_min >= 0x30) ||
+	    etd->fw_version_maj > 0x02) {
 		etd->hw_version = 2;
 		/* For now show extra debug information */
 		etd->debug = 1;
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index d8c0c8d6992..cbc80726494 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -110,6 +110,7 @@ static struct workqueue_struct *kpsmoused_wq;
 struct psmouse_protocol {
 	enum psmouse_type type;
 	bool maxproto;
+	bool ignore_parity; /* Protocol should ignore parity errors from KBC */
 	const char *name;
 	const char *alias;
 	int (*detect)(struct psmouse *, bool);
@@ -288,7 +289,9 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 	if (psmouse->state == PSMOUSE_IGNORE)
 		goto out;
 
-	if (flags & (SERIO_PARITY|SERIO_TIMEOUT)) {
+	if (unlikely((flags & SERIO_TIMEOUT) ||
+		     ((flags & SERIO_PARITY) && !psmouse->ignore_parity))) {
+
 		if (psmouse->state == PSMOUSE_ACTIVATED)
 			printk(KERN_WARNING "psmouse.c: bad data from KBC -%s%s\n",
 				flags & SERIO_TIMEOUT ? " timeout" : "",
@@ -759,6 +762,7 @@ static const struct psmouse_protocol psmouse_protocols[] = {
 		.name		= "PS/2",
 		.alias		= "bare",
 		.maxproto	= true,
+		.ignore_parity	= true,
 		.detect		= ps2bare_detect,
 	},
 #ifdef CONFIG_MOUSE_PS2_LOGIPS2PP
@@ -786,6 +790,7 @@ static const struct psmouse_protocol psmouse_protocols[] = {
 		.name		= "ImPS/2",
 		.alias		= "imps",
 		.maxproto	= true,
+		.ignore_parity	= true,
 		.detect		= intellimouse_detect,
 	},
 	{
@@ -793,6 +798,7 @@ static const struct psmouse_protocol psmouse_protocols[] = {
 		.name		= "ImExPS/2",
 		.alias		= "exps",
 		.maxproto	= true,
+		.ignore_parity	= true,
 		.detect		= im_explorer_detect,
 	},
 #ifdef CONFIG_MOUSE_PS2_SYNAPTICS
@@ -1222,6 +1228,7 @@ static void psmouse_disconnect(struct serio *serio)
 static int psmouse_switch_protocol(struct psmouse *psmouse,
 				   const struct psmouse_protocol *proto)
 {
+	const struct psmouse_protocol *selected_proto;
 	struct input_dev *input_dev = psmouse->dev;
 
 	input_dev->dev.parent = &psmouse->ps2dev.serio->dev;
@@ -1245,9 +1252,14 @@ static int psmouse_switch_protocol(struct psmouse *psmouse,
 			return -1;
 
 		psmouse->type = proto->type;
-	} else
+		selected_proto = proto;
+	} else {
 		psmouse->type = psmouse_extensions(psmouse,
 						   psmouse_max_proto, true);
+		selected_proto = psmouse_protocol_by_type(psmouse->type);
+	}
+
+	psmouse->ignore_parity = selected_proto->ignore_parity;
 
 	/*
 	 * If mouse's packet size is 3 there is no point in polling the
@@ -1267,7 +1279,7 @@ static int psmouse_switch_protocol(struct psmouse *psmouse,
 		psmouse->resync_time = 0;
 
 	snprintf(psmouse->devname, sizeof(psmouse->devname), "%s %s %s",
-		 psmouse_protocol_by_type(psmouse->type)->name, psmouse->vendor, psmouse->name);
+		 selected_proto->name, psmouse->vendor, psmouse->name);
 
 	input_dev->name = psmouse->devname;
 	input_dev->phys = psmouse->phys;
diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
index e053bdd137f..593e910bfc7 100644
--- a/drivers/input/mouse/psmouse.h
+++ b/drivers/input/mouse/psmouse.h
@@ -47,6 +47,7 @@ struct psmouse {
 	unsigned char pktcnt;
 	unsigned char pktsize;
 	unsigned char type;
+	bool ignore_parity;
 	bool acks_disable_command;
 	unsigned int model;
 	unsigned long last;
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 026df601016..ebd7a99efea 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -137,7 +137,8 @@ static int synaptics_capability(struct psmouse *psmouse)
 	if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap))
 		return -1;
 	priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2];
-	priv->ext_cap = 0;
+	priv->ext_cap = priv->ext_cap_0c = 0;
+
 	if (!SYN_CAP_VALID(priv->capabilities))
 		return -1;
 
@@ -150,7 +151,7 @@ static int synaptics_capability(struct psmouse *psmouse)
 	if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) {
 		if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) {
 			printk(KERN_ERR "Synaptics claims to have extended capabilities,"
-			       " but I'm not able to read them.");
+			       " but I'm not able to read them.\n");
 		} else {
 			priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2];
 
@@ -162,6 +163,16 @@ static int synaptics_capability(struct psmouse *psmouse)
 				priv->ext_cap &= 0xff0fff;
 		}
 	}
+
+	if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) {
+		if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) {
+			printk(KERN_ERR "Synaptics claims to have extended capability 0x0c,"
+			       " but I'm not able to read it.\n");
+		} else {
+			priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2];
+		}
+	}
+
 	return 0;
 }
 
@@ -348,7 +359,15 @@ static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data
 		hw->left  = (buf[0] & 0x01) ? 1 : 0;
 		hw->right = (buf[0] & 0x02) ? 1 : 0;
 
-		if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
+		if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
+			/*
+			 * Clickpad's button is transmitted as middle button,
+			 * however, since it is primary button, we will report
+			 * it as BTN_LEFT.
+			 */
+			hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
+
+		} else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
 			hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
 			if (hw->w == 2)
 				hw->scroll = (signed char)(buf[1]);
@@ -593,6 +612,12 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
 
 	dev->absres[ABS_X] = priv->x_res;
 	dev->absres[ABS_Y] = priv->y_res;
+
+	if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
+		/* Clickpads report only left button */
+		__clear_bit(BTN_RIGHT, dev->keybit);
+		__clear_bit(BTN_MIDDLE, dev->keybit);
+	}
 }
 
 stat