omap24xx: Remove 2.6.36

SVN-Revision: 25395

1 files changed, 0 insertions, 1031 deletions

diff --git a/target/linux/omap24xx/patches-2.6.36/600-tsc2005.patch b/target/linux/omap24xx/patches-2.6.36/600-tsc2005.patch
deleted file mode 100644
index 6146eb975c..0000000000
--- a/target/linux/omap24xx/patches-2.6.36/600-tsc2005.patch
+++ /dev/null
@@ -1,1031 +0,0 @@
----
- drivers/input/touchscreen/Kconfig   |   11 
- drivers/input/touchscreen/Makefile  |    1 
- drivers/input/touchscreen/tsc2005.c |  958 ++++++++++++++++++++++++++++++++++++
- include/linux/spi/tsc2005.h         |   30 +
- 4 files changed, 1000 insertions(+)
-
---- linux-2.6.36-rc4.orig/drivers/input/touchscreen/Kconfig
-+++ linux-2.6.36-rc4/drivers/input/touchscreen/Kconfig
-@@ -586,6 +586,17 @@ config TOUCHSCREEN_TOUCHIT213
- 	  To compile this driver as a module, choose M here: the
- 	  module will be called touchit213.
- 
-+config TOUCHSCREEN_TSC2005
-+        tristate "TSC2005 based touchscreens"
-+        depends on SPI_MASTER
-+        help
-+          Say Y here if you have a TSC2005 based touchscreen.
-+
-+	  If unsure, say N.
-+
-+	  To compile this driver as a module, choose M here: the
-+	  module will be called tsc2005.
-+
- config TOUCHSCREEN_TSC2007
- 	tristate "TSC2007 based touchscreens"
- 	depends on I2C
---- linux-2.6.36-rc4.orig/drivers/input/touchscreen/Makefile
-+++ linux-2.6.36-rc4/drivers/input/touchscreen/Makefile
-@@ -40,6 +40,7 @@ obj-$(CONFIG_TOUCHSCREEN_STMPE)		+= stmp
- obj-$(CONFIG_TOUCHSCREEN_TOUCHIT213)	+= touchit213.o
- obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT)	+= touchright.o
- obj-$(CONFIG_TOUCHSCREEN_TOUCHWIN)	+= touchwin.o
-+obj-$(CONFIG_TOUCHSCREEN_TSC2005)	+= tsc2005.o
- obj-$(CONFIG_TOUCHSCREEN_TSC2007)	+= tsc2007.o
- obj-$(CONFIG_TOUCHSCREEN_UCB1400)	+= ucb1400_ts.o
- obj-$(CONFIG_TOUCHSCREEN_WACOM_W8001)	+= wacom_w8001.o
---- /dev/null
-+++ linux-2.6.36-rc4/drivers/input/touchscreen/tsc2005.c
-@@ -0,0 +1,958 @@
-+/*
-+ * TSC2005 touchscreen driver
-+ *
-+ * Copyright (C) 2006-2008 Nokia Corporation
-+ *
-+ * Author: Lauri Leukkunen <lauri.leukkunen@nokia.com>
-+ * based on TSC2301 driver by Klaus K. Pedersen <klaus.k.pedersen@nokia.com>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License as published by
-+ * the Free Software Foundation; either version 2 of the License, or
-+ * (at your option) any later version.
-+ *
-+ * 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 02111-1307 USA
-+ *
-+ */
-+
-+#include <linux/kernel.h>
-+#include <linux/module.h>
-+#include <linux/input.h>
-+#include <linux/interrupt.h>
-+#include <linux/delay.h>
-+#include <linux/spi/spi.h>
-+
-+#include <linux/spi/tsc2005.h>
-+
-+/**
-+ * The touchscreen interface operates as follows:
-+ *
-+ * Initialize:
-+ *    Request access to GPIO103 (DAV)
-+ *    tsc2005_ts_irq_handler will trigger when DAV line goes down
-+ *
-+ *  1) Pen is pressed against touchscreeen
-+ *  2) TSC2005 performs AD conversion
-+ *  3) After the conversion is done TSC2005 drives DAV line down
-+ *  4) GPIO IRQ is received and tsc2005_ts_irq_handler is called
-+ *  5) tsc2005_ts_irq_handler queues up an spi transfer to fetch
-+ *     the x, y, z1, z2 values
-+ *  6) tsc2005_ts_rx() reports coordinates to input layer and
-+ *     sets up tsc2005_ts_timer() to be called after TSC2005_TS_SCAN_TIME
-+ *  7)  When the penup_timer expires, there have not been DAV interrupts
-+ *     during the last 20ms which means the pen has been lifted.
-+ */
-+
-+#define TSC2005_VDD_LOWER_27
-+
-+#ifdef TSC2005_VDD_LOWER_27
-+#define TSC2005_HZ     (10000000)
-+#else
-+#define TSC2005_HZ     (25000000)
-+#endif
-+
-+#define TSC2005_CMD	(0x80)
-+#define TSC2005_REG	(0x00)
-+
-+#define TSC2005_CMD_STOP	(1)
-+#define TSC2005_CMD_10BIT	(0 << 2)
-+#define TSC2005_CMD_12BIT	(1 << 2)
-+
-+#define TSC2005_CMD_SCAN_XYZZ	(0 << 3)
-+#define TSC2005_CMD_SCAN_XY	(1 << 3)
-+#define TSC2005_CMD_SCAN_X	(2 << 3)
-+#define TSC2005_CMD_SCAN_Y	(3 << 3)
-+#define TSC2005_CMD_SCAN_ZZ	(4 << 3)
-+#define TSC2005_CMD_AUX_SINGLE	(5 << 3)
-+#define TSC2005_CMD_TEMP1	(6 << 3)
-+#define TSC2005_CMD_TEMP2	(7 << 3)
-+#define TSC2005_CMD_AUX_CONT	(8 << 3)
-+#define TSC2005_CMD_TEST_X_CONN	(9 << 3)
-+#define TSC2005_CMD_TEST_Y_CONN	(10 << 3)
-+#define TSC2005_CMD_TEST_SHORT	(11 << 3)
-+/* command 12 reserved, according to 2008-03 erratum */
-+#define TSC2005_CMD_DRIVE_XX	(13 << 3)
-+#define TSC2005_CMD_DRIVE_YY	(14 << 3)
-+#define TSC2005_CMD_DRIVE_YX	(15 << 3)
-+
-+#define TSC2005_REG_X		(0 << 3)
-+#define TSC2005_REG_Y		(1 << 3)
-+#define TSC2005_REG_Z1		(2 << 3)
-+#define TSC2005_REG_Z2		(3 << 3)
-+#define TSC2005_REG_AUX		(4 << 3)
-+#define TSC2005_REG_TEMP1	(5 << 3)
-+#define TSC2005_REG_TEMP2	(6 << 3)
-+#define TSC2005_REG_STATUS	(7 << 3)
-+#define TSC2005_REG_AUX_HIGH	(8 << 3)
-+#define TSC2005_REG_AUX_LOW	(9 << 3)
-+#define TSC2005_REG_TEMP_HIGH	(10 << 3)
-+#define TSC2005_REG_TEMP_LOW	(11 << 3)
-+#define TSC2005_REG_CFR0	(12 << 3)
-+#define TSC2005_REG_CFR1	(13 << 3)
-+#define TSC2005_REG_CFR2	(14 << 3)
-+#define TSC2005_REG_FUNCTION	(15 << 3)
-+
-+#define TSC2005_REG_PND0	(1 << 1)
-+#define TSC2005_REG_READ	(0x01)
-+#define TSC2005_REG_WRITE	(0x00)
-+
-+
-+#define TSC2005_CFR0_LONGSAMPLING	(1)
-+#define TSC2005_CFR0_DETECTINWAIT	(1 << 1)
-+#define TSC2005_CFR0_SENSETIME_32US	(0)
-+#define TSC2005_CFR0_SENSETIME_96US	(1 << 2)
-+#define TSC2005_CFR0_SENSETIME_544US	(1 << 3)
-+#define TSC2005_CFR0_SENSETIME_2080US	(1 << 4)
-+#define TSC2005_CFR0_SENSETIME_2656US	(0x001C)
-+#define TSC2005_CFR0_PRECHARGE_20US	(0x0000)
-+#define TSC2005_CFR0_PRECHARGE_84US	(0x0020)
-+#define TSC2005_CFR0_PRECHARGE_276US	(0x0040)
-+#define TSC2005_CFR0_PRECHARGE_1044US	(0x0080)
-+#define TSC2005_CFR0_PRECHARGE_1364US	(0x00E0)
-+#define TSC2005_CFR0_STABTIME_0US	(0x0000)
-+#define TSC2005_CFR0_STABTIME_100US	(0x0100)
-+#define TSC2005_CFR0_STABTIME_500US	(0x0200)
-+#define TSC2005_CFR0_STABTIME_1MS	(0x0300)
-+#define TSC2005_CFR0_STABTIME_5MS	(0x0400)
-+#define TSC2005_CFR0_STABTIME_100MS	(0x0700)
-+#define TSC2005_CFR0_CLOCK_4MHZ		(0x0000)
-+#define TSC2005_CFR0_CLOCK_2MHZ		(0x0800)
-+#define TSC2005_CFR0_CLOCK_1MHZ		(0x1000)
-+#define TSC2005_CFR0_RESOLUTION12	(0x2000)
-+#define TSC2005_CFR0_STATUS		(0x4000)
-+#define TSC2005_CFR0_PENMODE		(0x8000)
-+
-+#define TSC2005_CFR0_INITVALUE	(TSC2005_CFR0_STABTIME_1MS  |	\
-+				 TSC2005_CFR0_CLOCK_1MHZ    |	\
-+				 TSC2005_CFR0_RESOLUTION12  |	\
-+				 TSC2005_CFR0_PRECHARGE_276US | \
-+				 TSC2005_CFR0_PENMODE)
-+
-+/* Bits common to both read and write of config register 0 */
-+#define	TSC2005_CFR0_RW_MASK	0x3fff
-+
-+#define TSC2005_CFR1_BATCHDELAY_0MS	(0x0000)
-+#define TSC2005_CFR1_BATCHDELAY_1MS	(0x0001)
-+#define TSC2005_CFR1_BATCHDELAY_2MS	(0x0002)
-+#define TSC2005_CFR1_BATCHDELAY_4MS	(0x0003)
-+#define TSC2005_CFR1_BATCHDELAY_10MS	(0x0004)
-+#define TSC2005_CFR1_BATCHDELAY_20MS	(0x0005)
-+#define TSC2005_CFR1_BATCHDELAY_40MS	(0x0006)
-+#define TSC2005_CFR1_BATCHDELAY_100MS	(0x0007)
-+
-+#define TSC2005_CFR1_INITVALUE	(TSC2005_CFR1_BATCHDELAY_4MS)
-+
-+#define TSC2005_CFR2_MAVE_TEMP	(0x0001)
-+#define TSC2005_CFR2_MAVE_AUX	(0x0002)
-+#define TSC2005_CFR2_MAVE_Z	(0x0004)
-+#define TSC2005_CFR2_MAVE_Y	(0x0008)
-+#define TSC2005_CFR2_MAVE_X	(0x0010)
-+#define TSC2005_CFR2_AVG_1	(0x0000)
-+#define TSC2005_CFR2_AVG_3	(0x0400)
-+#define TSC2005_CFR2_AVG_7	(0x0800)
-+#define TSC2005_CFR2_MEDIUM_1	(0x0000)
-+#define TSC2005_CFR2_MEDIUM_3	(0x1000)
-+#define TSC2005_CFR2_MEDIUM_7	(0x2000)
-+#define TSC2005_CFR2_MEDIUM_15	(0x3000)
-+
-+#define TSC2005_CFR2_IRQ_MASK   (0xC000)
-+#define TSC2005_CFR2_IRQ_DAV	(0x4000)
-+#define TSC2005_CFR2_IRQ_PEN	(0x8000)
-+#define TSC2005_CFR2_IRQ_PENDAV	(0x0000)
-+
-+#define TSC2005_CFR2_INITVALUE	(TSC2005_CFR2_IRQ_PENDAV |	\
-+				 TSC2005_CFR2_MAVE_X    |	\
-+				 TSC2005_CFR2_MAVE_Y    |	\
-+				 TSC2005_CFR2_MAVE_Z    |	\
-+				 TSC2005_CFR2_MEDIUM_15 |	\
-+				 TSC2005_CFR2_AVG_7)
-+
-+#define MAX_12BIT					((1 << 12) - 1)
-+#define TS_SAMPLES					4
-+#define TSC2005_TS_PENUP_TIME				40
-+
-+static const u32 tsc2005_read_reg[] = {
-+	(TSC2005_REG | TSC2005_REG_X | TSC2005_REG_READ) << 16,
-+	(TSC2005_REG | TSC2005_REG_Y | TSC2005_REG_READ) << 16,
-+	(TSC2005_REG | TSC2005_REG_Z1 | TSC2005_REG_READ) << 16,
-+	(TSC2005_REG | TSC2005_REG_Z2 | TSC2005_REG_READ) << 16,
-+};
-+#define NUM_READ_REGS	(sizeof(tsc2005_read_reg)/sizeof(tsc2005_read_reg[0]))
-+
-+struct tsc2005 {
-+	struct spi_device	*spi;
-+
-+	struct input_dev	*idev;
-+	char			phys[32];
-+	struct timer_list	penup_timer;
-+
-+	/* ESD recovery via a hardware reset if the tsc2005
-+	 * doesn't respond after a configurable period (in ms) of
-+	 * IRQ/SPI inactivity. If esd_timeout is 0, timer and work
-+	 * fields are used.
-+	 */
-+	u32			esd_timeout;
-+	struct timer_list	esd_timer;
-+	struct work_struct	esd_work;
-+
-+	spinlock_t		lock;
-+	struct mutex		mutex;
-+
-+	struct spi_message	read_msg;
-+	struct spi_transfer	read_xfer[NUM_READ_REGS];
-+	u32                     data[NUM_READ_REGS];
-+
-+	/* previously reported x,y,p (if pen_down) */
-+	int			out_x;
-+	int			out_y;
-+	int			out_p;
-+	/* fudge parameters - changes must exceed one of these. */
-+	int			fudge_x;
-+	int			fudge_y;
-+	int			fudge_p;
-+	/* raw copy of previous x,y,z */
-+	int			in_x;
-+	int			in_y;
-+	int			in_z1;
-+	int			in_z2;
-+	/* average accumulators for each component */
-+	int			sample_cnt;
-+	int			avg_x;
-+	int			avg_y;
-+	int			avg_z1;
-+	int			avg_z2;
-+	/* configuration */
-+	int			x_plate_ohm;
-+	int			hw_avg_max;
-+	int			stab_time;
-+	int			p_max;
-+	int			touch_pressure;
-+	/* status */
-+	u8			sample_sent;
-+	u8			pen_down;
-+	u8			disabled;
-+	u8			disable_depth;
-+	u8			spi_pending;
-+
-+	void (*set_reset)(bool enable);
-+};
-+
-+static void tsc2005_cmd(struct tsc2005 *ts, u8 cmd)
-+{
-+	u8 data = TSC2005_CMD | TSC2005_CMD_12BIT | cmd;
-+	struct spi_message msg;
-+	struct spi_transfer xfer = { 0 };
-+
-+	xfer.tx_buf = &data;
-+	xfer.rx_buf = NULL;
-+	xfer.len = 1;
-+	xfer.bits_per_word = 8;
-+
-+	spi_message_init(&msg);
-+	spi_message_add_tail(&xfer, &msg);
-+	spi_sync(ts->spi, &msg);
-+}
-+
-+static void tsc2005_write(struct tsc2005 *ts, u8 reg, u16 value)
-+{
-+	u32 tx;
-+	struct spi_message msg;
-+	struct spi_transfer xfer = { 0 };
-+
-+	tx = (TSC2005_REG | reg | TSC2005_REG_PND0 |
-+	       TSC2005_REG_WRITE) << 16;
-+	tx |= value;
-+
-+	xfer.tx_buf = &tx;
-+	xfer.rx_buf = NULL;
-+	xfer.len = 4;
-+	xfer.bits_per_word = 24;
-+
-+	spi_message_init(&msg);
-+	spi_message_add_tail(&xfer, &msg);
-+	spi_sync(ts->spi, &msg);
-+}
-+
-+static void tsc2005_read(struct tsc2005 *ts, u8 reg, u16 *value)
-+{
-+	u32 tx;
-+	u32 rx = 0;
-+	struct spi_message msg;
-+	struct spi_transfer xfer = { 0 };
-+
-+	tx = (TSC2005_REG | reg | TSC2005_REG_READ) << 16;
-+
-+	xfer.tx_buf = &tx;
-+	xfer.rx_buf = &rx;
-+	xfer.len = 4;
-+	xfer.bits_per_word = 24;
-+
-+	spi_message_init(&msg);
-+	spi_message_add_tail(&xfer, &msg);
-+	spi_sync(ts->spi, &msg);
-+	*value = rx;
-+}
-+
-+static void tsc2005_ts_update_pen_state(struct tsc2005 *ts,
-+					int x, int y, int pressure)
-+{
-+	if (pressure) {
-+		input_report_abs(ts->idev, ABS_X, x);
-+		input_report_abs(ts->idev, ABS_Y, y);
-+		input_report_abs(ts->idev, ABS_PRESSURE, pressure);
-+		if (!ts->pen_down) {
-+			input_report_key(ts->idev, BTN_TOUCH, 1);
-+			ts->pen_down = 1;
-+		}
-+	} else {
-+		input_report_abs(ts->idev, ABS_PRESSURE, 0);
-+		if (ts->pen_down) {
-+			input_report_key(ts->idev, BTN_TOUCH, 0);
-+			ts->pen_down = 0;
-+		}
-+	}
-+
-+	input_sync(ts->idev);
-+}
-+
-+/*
-+ * This function is called by the SPI framework after the coordinates
-+ * have been read from TSC2005
-+ */
-+static void tsc2005_ts_rx(void *arg)
-+{
-+	struct tsc2005 *ts = arg;
-+	unsigned long flags;
-+	int inside_rect, pressure_limit;
-+	int x, y, z1, z2, pressure;
-+
-+	spin_lock_irqsave(&ts->lock, flags);
-+
-+	if (ts->disable_depth) {
-+		ts->spi_pending = 0;
-+		goto out;
-+	}
-+
-+	x = ts->data[0];
-+	y = ts->data[1];
-+	z1 = ts->data[2];
-+	z2 = ts->data[3];
-+
-+	/* validate pressure and position */
-+	if (x > MAX_12BIT || y > MAX_12BIT)
-+		goto out;
-+
-+	/* skip coords if the pressure-components are out of range */
-+	if (z1 < 100 || z2 > MAX_12BIT || z1 >= z2)
-+		goto out;
-+
-+	/* skip point if this is a pen down with the exact same values as
-+	 * the value before pen-up - that implies SPI fed us stale data
-+	 */
-+	if (!ts->pen_down &&
-+	    ts->in_x == x &&
-+	    ts->in_y == y &&
-+	    ts->in_z1 == z1 &&
-+	    ts->in_z2 == z2)
-+		goto out;
-+
-+	/* At this point we are happy we have a valid and useful reading.
-+	 * Remember it for later comparisons. We may now begin downsampling
-+	 */
-+	ts->in_x = x;
-+	ts->in_y = y;
-+	ts->in_z1 = z1;
-+	ts->in_z2 = z2;
-+
-+	/* don't run average on the "pen down" event */
-+	if (ts->sample_sent) {
-+		ts->avg_x += x;
-+		ts->avg_y += y;
-+		ts->avg_z1 += z1;
-+		ts->avg_z2 += z2;
-+
-+		if (++ts->sample_cnt < TS_SAMPLES)
-+			goto out;
-+
-+		x = ts->avg_x / TS_SAMPLES;
-+		y = ts->avg_y / TS_SAMPLES;
-+		z1 = ts->avg_z1 / TS_SAMPLES;
-+		z2 = ts->avg_z2 / TS_SAMPLES;
-+	}
-+
-+	ts->sample_cnt = 0;
-+	ts->avg_x = 0;
-+	ts->avg_y = 0;
-+	ts->avg_z1 = 0;
-+	ts->avg_z2 = 0;
-+
-+	pressure = x * (z2 - z1) / z1;
-+	pressure = pressure * ts->x_plate_ohm / 4096;
-+
-+	pressure_limit = ts->sample_sent ? ts->p_max : ts->touch_pressure;
-+	if (pressure > pressure_limit)
-+		goto out;
-+
-+	/* Discard the event if it still is within the previous rect -
-+	 * unless the pressure is clearly harder, but then use previous
-+	 * x,y position. If any coordinate deviates enough, fudging
-+	 * of all three will still take place in the input layer.
-+	 */
-+	inside_rect = (ts->sample_sent &&
-+		x > (int)ts->out_x - ts->fudge_x &&
-+		x < (int)ts->out_x + ts->fudge_x &&
-+		y > (int)ts->out_y - ts->fudge_y &&
-+		y < (int)ts->out_y + ts->fudge_y);
-+	if (inside_rect)
-+		x = ts->out_x, y = ts->out_y;
-+
-+	if (!inside_rect || pressure < (ts->out_p - ts->fudge_p)) {
-+		tsc2005_ts_update_pen_state(ts, x, y, pressure);
-+		ts->sample_sent = 1;
-+		ts->out_x = x;
-+		ts->out_y = y;
-+		ts->out_p = pressure;
-+	}
-+out:
-+	if (ts->spi_pending > 1) {
-+		/* One or more interrupts (sometimes several dozens)
-+		 * occured while waiting for the SPI read - get
-+		 * another read going.
-+		 */
-+		ts->spi_pending = 1;
-+		if (spi_async(ts->spi, &ts->read_msg)) {
-+			dev_err(&ts->spi->dev, "ts: spi_async() failed");
-+			ts->spi_pending = 0;
-+		}
-+	} else
-+		ts->spi_pending = 0;
-+
-+	/* kick pen up timer - to make sure it expires again(!) */
-+	if (ts->sample_sent) {
-+		mod_timer(&ts->penup_timer,
-+			  jiffies + msecs_to_jiffies(TSC2005_TS_PENUP_TIME));
-+		/* Also kick the watchdog, as we still think we're alive */
-+		if (ts->esd_timeout && ts->disable_depth == 0) {
-+			unsigned long wdj = msecs_to_jiffies(ts->esd_timeout);
-+			mod_timer(&ts->esd_timer, round_jiffies(jiffies+wdj));
-+		}
-+	}
-+	spin_unlock_irqrestore(&ts->lock, flags);
-+}
-+
-+/* This penup timer is very forgiving of delayed SPI reads. The
-+ * (ESD) watchdog will rescue us if spi_pending remains set, unless
-+ * we are enterring the disabled state. In that case we must just
-+ * handle the pen up, and let disabling complete.
-+ */
-+static void tsc2005_ts_penup_timer_handler(unsigned long data)
-+{
-+	struct tsc2005 *ts = (struct tsc2005 *)data;
-+	if ((!ts->spi_pending || ts->disable_depth) &&
-+	    ts->sample_sent) {
-+		tsc2005_ts_update_pen_state(ts, 0, 0, 0);
-+		ts->sample_sent = 0;
-+	}
-+}
-+
-+/*
-+ * This interrupt is called when pen is down and coordinates are
-+ * available. That is indicated by a either:
-+ * a) a rising edge on PINTDAV or (PENDAV mode)
-+ * b) a falling edge on DAV line (DAV mode)
-+ * depending on the setting of the IRQ bits in the CFR2 setting above.
-+ */
-+static irqreturn_t tsc2005_ts_irq_handler(int irq, void *dev_id)
-+{
-+	struct tsc2005 *ts = dev_id;
-+	if (ts->disable_depth)
-+		goto out;
-+
-+	if (!ts->spi_pending) {
-+		if (spi_async(ts->spi, &ts->read_msg)) {
-+			dev_err(&ts->spi->dev, "ts: spi_async() failed");
-+			goto out;
-+		}
-+	}
-+	/* By shifting in 1s we can never wrap */
-+	ts->spi_pending = (ts->spi_pending<<1)+1;
-+
-+	/* Kick pen up timer only if it's not been started yet. Strictly,
-+	 * it isn't even necessary to start it at all here,  but doing so
-+	 * keeps an equivalence between pen state and timer state.
-+	 * The SPI read loop will keep pushing it into the future.
-+	 * If it times out with an SPI pending, it's ignored anyway.
-+	 */
-+	if (!timer_pending(&ts->penup_timer)) {
-+		unsigned long pu = msecs_to_jiffies(TSC2005_TS_PENUP_TIME);
-+		ts->penup_timer.expires = jiffies + pu;
-+		add_timer(&ts->penup_timer);
-+	}
-+out:
-+	return IRQ_HANDLED;
-+}
-+
-+static void tsc2005_ts_setup_spi_xfer(struct tsc2005 *ts)
-+{
-+	struct spi_message *m = &ts->read_msg;
-+	struct spi_transfer *x = &ts->read_xfer[0];
-+	int i;
-+
-+	spi_message_init(m);
-+
-+	for (i = 0; i < NUM_READ_REGS; i++, x++) {
-+		x->tx_buf = &tsc2005_read_reg[i];
-+		x->rx_buf = &ts->data[i];
-+		x->len = 4;
-+		x->bits_per_word = 24;
-+		x->cs_change = i < (NUM_READ_REGS - 1);
-+		spi_message_add_tail(x, m);
-+	}
-+
-+	m->complete = tsc2005_ts_rx;
-+	m->context = ts;
-+}
-+
-+static ssize_t tsc2005_ts_pen_down_show(struct device *dev,
-+					struct device_attribute *attr,
-+					char *buf)
-+{
-+	struct tsc2005 *ts = dev_get_drvdata(dev);
-+
-+	return sprintf(buf, "%u\n", ts->pen_down);
-+}
-+
-+static DEVICE_ATTR(pen_down, S_IRUGO, tsc2005_ts_pen_down_show, NULL);
-+
-+static int tsc2005_configure(struct tsc2005 *ts, int flags)
-+{
-+	tsc2005_write(ts, TSC2005_REG_CFR0, TSC2005_CFR0_INITVALUE);
-+	tsc2005_write(ts, TSC2005_REG_CFR1, TSC2005_CFR1_INITVALUE);
-+	tsc2005_write(ts, TSC2005_REG_CFR2, TSC2005_CFR2_INITVALUE);
-+	tsc2005_cmd(ts, flags);
-+
-+	return 0;
-+}
-+
-+static void tsc2005_start_scan(struct tsc2005 *ts)
-+{
-+	tsc2005_configure(ts, TSC2005_CMD_SCAN_XYZZ);
-+}
-+
-+static void tsc2005_stop_scan(struct tsc2005 *ts)
-+{
-+	tsc2005_cmd(ts, TSC2005_CMD_STOP);
-+}
-+
-+/* Must be called with mutex held */
-+static void tsc2005_disable(struct tsc2005 *ts)
-+{
-+	if (ts->disable_depth++ != 0)
-+		return;
-+
-+	disable_irq(ts->spi->irq);
-+	if (ts->esd_timeout)
-+		del_timer(&ts->esd_timer);
-+
-+	/* wait until penup timer expire normally */
-+	do {
-+		msleep(4);
-+	} while (ts->sample_sent);
-+
-+	tsc2005_stop_scan(ts);
-+}
-+
-+static void tsc2005_enable(struct tsc2005 *ts)
-+{
-+	if (ts->disable_depth != 1)
-+		goto out;
-+
-+	if (ts->esd_timeout) {
-+		unsigned long wdj = msecs_to_jiffies(ts->esd_timeout);
-+		ts->esd_timer.expires = round_jiffies(jiffies+wdj);
-+		add_timer(&ts->esd_timer);
-+	}
-+	tsc2005_start_scan(ts);
-+	enable_irq(ts->spi->irq);
-+out:
-+	--ts->disable_depth;
-+}
-+
-+static ssize_t tsc2005_disable_show(struct device *dev,
-+				    struct device_attribute *attr, char *buf)
-+{
-+	struct tsc2005 *ts = dev_get_drvdata(dev);
-+
-+	return sprintf(buf, "%u\n", ts->disabled);
-+}
-+
-+static ssize_t tsc2005_disable_store(struct device *dev,
-+				     struct device_attribute *attr,
-+				     const char *buf, size_t count)
-+{
-+	struct tsc2005		*ts = dev_get_drvdata(dev);
-+	unsigned long res;
-+	int i;
-+
-+	if (strict_strtoul(buf, 10, &res) < 0)
-+		return -EINVAL;
-+	i = res ? 1 : 0;
-+
-+	mutex_lock(&ts->mutex);
-+	if (i == ts->disabled)
-+		goto out;
-+	ts->disabled = i;
-+
-+	if (i)
-+		tsc2005_disable(ts);
-+	else
-+		tsc2005_enable(ts);
-+out:
-+	mutex_unlock(&ts->mutex);
-+	return count;
-+}
-+
-+static DEVICE_ATTR(disable_ts, 0664, tsc2005_disable_show,
-+		   tsc2005_disable_store);
-+
-+static ssize_t tsc2005_ctrl_selftest_show(struct device *dev,
-+					  struct device_attribute *attr,
-+					  char *buf)
-+{
-+	u16 temp_high_orig, temp_high_test, temp_high;
-+	unsigned int result = 1;
-+	struct tsc2005 *ts = dev_get_drvdata(dev);
-+
-+	if (!ts->set_reset) {
-+		dev_warn(&ts->spi->dev,
-+			 "unable to selftest: reset not configured\n");
-+		result = 0;
-+		goto out;
-+	}
-+
-+	mutex_lock(&ts->mutex);
-+	tsc2005_disable(ts);
-+
-+	/* Test ctrl communications via temp high / low registers */
-+	tsc2005_read(ts, TSC2005_REG_TEMP_HIGH, &temp_high_orig);
-+
-+	temp_high_test = (temp_high_orig - 1) & 0x0FFF;
-+
-+	tsc2005_write(ts, TSC2005_REG_TEMP_HIGH, temp_high_test);
-+
-+	tsc2005_read(ts, TSC2005_REG_TEMP_HIGH, &temp_high);
-+
-+	if (temp_high != temp_high_test) {
-+		result = 0;
-+		dev_warn(dev, "selftest failed: %d != %d\n",
-+			 temp_high, temp_high_test);
-+	}
-+
-+	/* HW Reset */
-+	ts->set_reset(0);
-+	msleep(1); /* only 10us required */
-+	ts->set_reset(1);
-+
-+	tsc2005_enable(ts);
-+
-+	/* Test that reset really happened */
-+	tsc2005_read(ts, TSC2005_REG_TEMP_HIGH, &temp_high);
-+
-+	if (temp_high != temp_high_orig) {
-+		result = 0;
-+		dev_warn(dev, "selftest failed after reset: "
-+			 "%d != %d\n",
-+			 temp_high, temp_high_orig);
-+	}
-+
-+	mutex_unlock(&ts->mutex);
-+
-+out:
-+	return sprintf(buf, "%u\n", result);
-+}
-+
-+static DEVICE_ATTR(ts_ctrl_selftest, S_IRUGO, tsc2005_ctrl_selftest_show, NULL);
-+
-+static void tsc2005_esd_timer_handler(unsigned long data)
-+{
-+	struct tsc2005 *ts = (struct tsc2005 *)data;
-+	if (!ts->disable_depth)
-+		schedule_work(&ts->esd_work);
-+}
-+
-+static void tsc2005_rst_handler(struct work_struct *work)
-+{
-+	u16 reg_val;
-+	struct tsc2005 *ts = container_of(work, struct tsc2005, esd_work);
-+	unsigned long wdj;
-+
-+	mutex_lock(&ts->mutex);
-+
-+	/* If we are disabled, or the a touch has been detected,
-+	 * then ignore this timeout. The enable will restart the
-+	 * watchdog, as it restarts scanning
-+	 */
-+	if (ts->disable_depth)
-+		goto out;
-+
-+	/* If we cannot read our known value from configuration register 0
-+	 * then reset the controller as if from power-up and start
-+	 * scanning again. Always re-arm the watchdog.
-+	 */
-+	tsc2005_read(ts, TSC2005_REG_CFR0, &reg_val);
-+	if ((reg_val ^ TSC2005_CFR0_INITVALUE) & TSC2005_CFR0_RW_MASK) {
-+		dev_info(&ts->spi->dev, "TSC not responding, resetting.\n");
-+		/* If this timer kicked in, the penup timer, if ever active
-+		 * at all, must have expired ages ago, so no need to del it.
-+		 */
-+		ts->set_reset(0);
-+		if (ts->sample_sent) {
-+			tsc2005_ts_update_pen_state(ts, 0, 0, 0);
-+			ts->sample_sent = 0;
-+		}
-+		ts->spi_pending = 0;
-+		msleep(1); /* only 10us required */
-+		ts->set_reset(1);
-+		tsc2005_start_scan(ts);
-+	}
-+	wdj = msecs_to_jiffies(ts->esd_timeout);
-+	mod_timer(&ts->esd_timer, round_jiffies(jiffies+wdj));
-+
-+out:
-+	mutex_unlock(&ts->mutex);
-+}
-+
-+static int __devinit tsc2005_ts_init(struct tsc2005 *ts,
-+				     struct tsc2005_platform_data *pdata)
-+{
-+	struct input_dev *idev;
-+	int r;
-+	int x_max, y_max;
-+
-+	init_timer(&ts->penup_timer);
-+	setup_timer(&ts->penup_timer, tsc2005_ts_penup_timer_handler,
-+			(unsigned long)ts);
-+
-+	spin_lock_init(&ts->lock);
-+	mutex_init(&ts->mutex);
-+
-+	ts->x_plate_ohm		= pdata->ts_x_plate_ohm ? : 280;
-+	ts->hw_avg_max		= pdata->ts_hw_avg;
-+	ts->stab_time		= pdata->ts_stab_time;
-+	x_max			= pdata->ts_x_max ? : 4096;
-+	ts->fudge_x		= pdata->ts_x_fudge ? : 4;
-+	y_max			= pdata->ts_y_max ? : 4096;
-+	ts->fudge_y		= pdata->ts_y_fudge ? : 8;
-+	ts->p_max		= pdata->ts_pressure_max ? : MAX_12BIT;
-+	ts->touch_pressure	= pdata->ts_touch_pressure ? : ts->p_max;
-+	ts->fudge_p		= pdata->ts_pressure_fudge ? : 2;
-+
-+	ts->set_reset		= pdata->set_reset;
-+
-+	idev = input_allocate_device();
-+	if (idev == NULL) {
-+		r = -ENOMEM;
-+		goto err1;
-+	}
-+
-+	idev->name = "TSC2005 touchscreen";
-+	snprintf(ts->phys, sizeof(ts->phys), "%s/input-ts",
-+		 dev_name(&ts->spi->dev));
-+	idev->phys = ts->phys;
-+
-+	idev->evbit[0] = BIT(EV_ABS) | BIT(EV_KEY);
-+	idev->absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE);
-+	idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
-+	ts->idev = idev;
-+
-+	tsc2005_ts_setup_spi_xfer(ts);
-+
-+	input_set_abs_params(idev, ABS_X, 0, x_max, ts->fudge_x, 0);
-+	input_set_abs_params(idev, ABS_Y, 0, y_max, ts->fudge_y, 0);
-+	input_set_abs_params(idev, ABS_PRESSURE, 0, ts->p_max, ts->fudge_p, 0);
-+
-+	tsc2005_start_scan(ts);
-+
-+	r = request_irq(ts->spi->irq, tsc2005_ts_irq_handler,
-+			(((TSC2005_CFR2_INITVALUE & TSC2005_CFR2_IRQ_MASK) ==
-+			  TSC2005_CFR2_IRQ_PENDAV)
-+			 ? IRQF_TRIGGER_RISING
-+			 : IRQF_TRIGGER_FALLING) |
-+			IRQF_DISABLED, "tsc2005", ts);
-+	if (r < 0) {
-+		dev_err(&ts->spi->dev, "unable to get DAV IRQ");
-+		goto err2;
-+	}
-+
-+	set_irq_wake(ts->spi->irq, 1);
-+
-+	r = input_register_device(idev);
-+	if (r < 0) {
-+		dev_err(&ts->spi->dev, "can't register touchscreen device\n");
-+		goto err3;
-+	}
-+
-+	/* We can tolerate these failing */
-+	r = device_create_file(&ts->spi->dev, &dev_attr_ts_ctrl_selftest);
-+	if (r < 0)
-+		dev_warn(&ts->spi->dev, "can't create sysfs file for %s: %d\n",
-+			 dev_attr_ts_ctrl_selftest.attr.name, r);
-+
-+	r = device_create_file(&ts->spi->dev, &dev_attr_pen_down);
-+	if (r < 0)
-+		dev_warn(&ts->spi->dev, "can't create sysfs file for %s: %d\n",
-+			 dev_attr_pen_down.attr.name, r);
-+
-+	r = device_create_file(&ts->spi->dev, &dev_attr_disable_ts);
-+	if (r < 0)
-+		dev_warn(&ts->spi->dev, "can't create sysfs file for %s: %d\n",
-+			 dev_attr_disable_ts.attr.name, r);
-+
-+	/* Finally, configure and start the optional EDD watchdog. */
-+	ts->esd_timeout = pdata->esd_timeout;
-+	if (ts->esd_timeout && ts->set_reset) {
-+		unsigned long wdj;
-+		setup_timer(&ts->esd_timer, tsc2005_esd_timer_handler,
-+			    (unsigned long)ts);
-+		INIT_WORK(&ts->esd_work, tsc2005_rst_handler);
-+		wdj = msecs_to_jiffies(ts->esd_timeout);
-+		ts->esd_timer.expires = round_jiffies(jiffies+wdj);
-+		add_timer(&ts->esd_timer);
-+	}
-+
-+	return 0;
-+err3:
-+	free_irq(ts->spi->irq, ts);
-+err2:
-+	tsc2005_stop_scan(ts);
-+	input_free_device(idev);
-+err1:
-+	return r;
-+}
-+
-+static int __devinit tsc2005_probe(struct spi_device *spi)
-+{
-+	struct tsc2005			*ts;
-+	struct tsc2005_platform_data	*pdata = spi->dev.platform_data;
-+	int r;
-+
-+	if (spi->irq < 0) {
-+		dev_dbg(&spi->dev, "no irq?\n");
-+		return -ENODEV;
-+	}
-+	if (!pdata) {
-+		dev_dbg(&spi->dev, "no platform data?\n");
-+		return -ENODEV;
-+	}
-+
-+	ts = kzalloc(sizeof(*ts), GFP_KERNEL);
-+	if (ts == NULL)
-+		return -ENOMEM;
-+
-+	dev_set_drvdata(&spi->dev, ts);
-+	ts->spi = spi;
-+	spi->dev.power.power_state = PMSG_ON;
-+
-+	spi->mode = SPI_MODE_0;
-+	spi->bits_per_word = 8;
-+	/* The max speed might've been defined by the board-specific
-+	 * struct */
-+	if (!spi->max_speed_hz)
-+		spi->max_speed_hz = TSC2005_HZ;
-+
-+	spi_setup(spi);
-+
-+	r = tsc2005_ts_init(ts, pdata);
-+	if (r)
-+		goto err1;
-+
-+	return 0;
-+
-+err1:
-+	kfree(ts);
-+	return r;
-+}
-+
-+static int __devexit tsc2005_remove(struct spi_device *spi)
-+{
-+	struct tsc2005 *ts = dev_get_drvdata(&spi->dev);
-+
-+	mutex_lock(&ts->mutex);
-+	tsc2005_disable(ts);
-+	mutex_unlock(&ts->mutex);
-+
-+	device_remove_file(&ts->spi->dev, &dev_attr_disable_ts);
-+	device_remove_file(&ts->spi->dev, &dev_attr_pen_down);
-+	device_remove_file(&ts->spi->dev, &dev_attr_ts_ctrl_selftest);
-+
-+	free_irq(ts->spi->irq, ts);
-+	input_unregister_device(ts->idev);
-+
-+	if (ts->esd_timeout)
-+		del_timer(&ts->esd_timer);
-+	kfree(ts);
-+
-+	return 0;
-+}
-+
-+#ifdef CONFIG_PM
-+static int tsc2005_suspend(struct spi_device *spi, pm_message_t mesg)
-+{
-+	struct tsc2005 *ts = dev_get_drvdata(&spi->dev);
-+
-+	mutex_lock(&ts->mutex);
-+	tsc2005_disable(ts);
-+	mutex_unlock(&ts->mutex);
-+
-+	return 0;
-+}
-+
-+static int tsc2005_resume(struct spi_device *spi)
-+{
-+	struct tsc2005 *ts = dev_get_drvdata(&spi->dev);
-+
-+	mutex_lock(&ts->mutex);
-+	tsc2005_enable(ts);
-+	mutex_unlock(&ts->mutex);
-+
-+	return 0;
-+}
-+#endif
-+
-+static struct spi_driver tsc2005_driver = {
-+	.driver = {
-+		.name = "tsc2005",
-+		.owner = THIS_MODULE,
-+	},
-+#ifdef CONFIG_PM
-+	.suspend = tsc2005_suspend,
-+	.resume = tsc2005_resume,
-+#endif
-+	.probe = tsc2005_probe,
-+	.remove = __devexit_p(tsc2005_remove),
-+};
-+
-+static int __init tsc2005_init(void)
-+{
-+	printk(KERN_INFO "TSC2005 driver initializing\n");
-+
-+	return spi_register_driver(&tsc2005_driver);
-+}
-+module_init(tsc2005_init);
-+
-+static void __exit tsc2005_exit(void)
-+{
-+	spi_unregister_driver(&tsc2005_driver);
-+}
-+module_exit(tsc2005_exit);
-+
-+MODULE_AUTHOR("Lauri Leukkunen <lauri.leukkunen@nokia.com>");
-+MODULE_LICENSE("GPL");
-+MODULE_ALIAS("platform:tsc2005");
---- /dev/null
-+++ linux-2.6.36-rc4/include/linux/spi/tsc2005.h
-@@ -0,0 +1,30 @@
-+#ifndef _LINUX_SPI_TSC2005_H
-+#define _LINUX_SPI_TSC2005_H
-+
-+#include <linux/types.h>
-+
-+struct tsc2005_platform_data {
-+	u16	ts_x_plate_ohm;
-+	u32	ts_stab_time;	/* voltage settling time */
-+	u8	ts_hw_avg;	/* HW assiseted averaging. Can be
-+				   0, 4, 8, 16 samples per reading */
-+	u32	ts_touch_pressure;	/* Pressure limit until we report a
-+					   touch event. After that we switch
-+					   to ts_max_pressure. */
-+	u32	ts_pressure_max;/* Samples with bigger pressure value will
-+				   be ignored, since the corresponding X, Y
-+				   values are unreliable */
-+	u32	ts_pressure_fudge;
-+	u32	ts_x_max;
-+	u32	ts_x_fudge;
-+	u32	ts_y_max;
-+	u32	ts_y_fudge;
-+
-+	u32	esd_timeout;    /* msec of inactivity before we check */
-+
-+	unsigned ts_ignore_last:1;
-+
-+	void (*set_reset)(bool enable);
-+};
-+
-+#endif