TSC210x driver using the SPI framework.

This is a rework of the TSC2102 driver from linux-omap-2.6 taking TSC2101
into account with the goal of using only a single driver.
Signed-off-by: Tony Lindgren <tony@atomide.com>

drivers/hwmon/Kconfig

@@ -684,6 +684,18 @@ config SENSORS_APPLESMC
 	  Say Y here if you have an applicable laptop and want to experience
 	  the awesome power of applesmc.
 
+config SENSORS_TSC210X
+	tristate "TI TSC2101/2102 battery & temperature sensors"
+	depends on HWMON && SPI_MASTER
+	select SPI_TSC210X
+	help
+	  Say Y if your board has a TSC210X chip and you want to
+	  have its battery state, auxiliary input and/or temperature
+	  sensors exported through hwmon.
+
+	  This driver can also be built as a module.  In this case
+	  the module will be called tsc210x_sensors.
+
 config HWMON_DEBUG_CHIP
 	bool "Hardware Monitoring Chip debugging messages"
 	default n

drivers/hwmon/Makefile

@@ -62,6 +62,7 @@ obj-$(CONFIG_SENSORS_VT1211)	+= vt1211.o
 obj-$(CONFIG_SENSORS_VT8231)	+= vt8231.o
 obj-$(CONFIG_SENSORS_W83627EHF)	+= w83627ehf.o
 obj-$(CONFIG_SENSORS_W83L785TS)	+= w83l785ts.o
+obj-$(CONFIG_SENSORS_TSC210X)	+= tsc210x_sensors.o
 
 ifeq ($(CONFIG_HWMON_DEBUG_CHIP),y)
 EXTRA_CFLAGS += -DDEBUG

drivers/hwmon/tsc210x_sensors.c

+/*
+ * drivers/hwmon/tsc210x_sensors.c
+ *
+ * hwmon interface for TSC210X sensors
+ *
+ * Copyright (c) 2005-2007 Andrzej Zaborowski  <balrog@zabor.org>
+ *
+ * This package 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 package 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 package; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/autoconf.h>
+#ifdef CONFIG_APM
+# include <linux/apm-emulation.h>
+#endif
+
+#include <linux/spi/tsc210x.h>
+
+struct tsc210x_hwmon {
+	int bat[2], aux[2], temp[2];
+
+	struct class_device *dev;
+	struct tsc210x_config *pdata;
+#ifdef CONFIG_APM
+	spinlock_t apm_lock;
+#endif
+};
+
+#ifdef CONFIG_APM
+# define apm_lock()	spin_lock(&hwmon->apm_lock)
+# define apm_unlock()	spin_unlock(&hwmon->apm_lock)
+#else
+# define apm_lock()
+# define apm_unlock()
+#endif
+
+static void tsc210x_ports(struct tsc210x_hwmon *hwmon, int bat[], int aux[])
+{
+	apm_lock();
+	hwmon->bat[0] = bat[0];
+	hwmon->bat[1] = bat[1];
+	hwmon->aux[0] = aux[0];
+	hwmon->aux[1] = aux[1];
+	apm_unlock();
+}
+
+static void tsc210x_temp1(struct tsc210x_hwmon *hwmon, int temp)
+{
+	apm_lock();
+	hwmon->temp[0] = temp;
+	apm_unlock();
+}
+
+static void tsc210x_temp2(struct tsc210x_hwmon *hwmon, int temp)
+{
+	apm_lock();
+	hwmon->temp[1] = temp;
+	apm_unlock();
+}
+
+#define TSC210X_INPUT(devname, field)	\
+static ssize_t tsc_show_ ## devname(struct device *dev,	\
+		struct device_attribute *devattr, char *buf)	\
+{	\
+	struct tsc210x_hwmon *hwmon = (struct tsc210x_hwmon *)	\
+		platform_get_drvdata(to_platform_device(dev));	\
+	return sprintf(buf, "%i\n", hwmon->field);	\
+}	\
+static DEVICE_ATTR(devname ## _input, S_IRUGO, tsc_show_ ## devname, NULL);
+
+TSC210X_INPUT(in0, bat[0])
+TSC210X_INPUT(in1, bat[1])
+TSC210X_INPUT(in2, aux[0])
+TSC210X_INPUT(in3, aux[1])
+TSC210X_INPUT(in4, temp[0])
+TSC210X_INPUT(in5, temp[1])
+
+static ssize_t tsc_show_temp1(struct device *dev,
+		struct device_attribute *devattr, char *buf)
+{
+	struct tsc210x_hwmon *hwmon = (struct tsc210x_hwmon *)
+		platform_get_drvdata(to_platform_device(dev));
+	int t1, t2;
+	int diff, value;
+
+	t1 = hwmon->temp[0];
+	t2 = hwmon->temp[1];
+
+	/*
+	 * Use method #2 (differential) to calculate current temperature.
+	 * The difference between TEMP2 and TEMP1 input values is
+	 * multiplied by a constant to obtain current temperature.
+	 * To find this constant we use the values measured at 25 C as
+	 * thermometer calibration data.
+	 *
+	 * 298150 is 25 degrees Celcius represented in Kelvins and
+	 * multiplied by 1000 for fixed point precision (273.15 + 25).
+	 * 273150 is zero degrees Celcius.
+	 */
+	diff = hwmon->pdata->temp_at25c[1] - hwmon->pdata->temp_at25c[0];
+	BUG_ON(diff == 0);
+	value = (t2 - t1) * 298150 / diff;	/* This is in Kelvins now */
+
+	value -= 273150;			/* Celcius millidegree */
+	return sprintf(buf, "%i\n", value);
+}
+static DEVICE_ATTR(temp1_input, S_IRUGO, tsc_show_temp1, NULL);
+
+#ifdef CONFIG_APM
+static struct tsc210x_hwmon *apm_hwmon;
+
+static void tsc210x_get_power_status(struct apm_power_info *info)
+{
+	struct tsc210x_hwmon *hwmon = apm_hwmon;
+	apm_lock();
+	hwmon->pdata->apm_report(info, hwmon->bat);
+	apm_unlock();
+}
+#endif
+
+static int tsc210x_hwmon_probe(struct platform_device *pdev)
+{
+	struct tsc210x_hwmon *hwmon;
+	struct tsc210x_config *pdata = pdev->dev.platform_data;
+	int status = 0;
+
+	hwmon = (struct tsc210x_hwmon *)
+		kzalloc(sizeof(struct tsc210x_hwmon), GFP_KERNEL);
+	if (!hwmon) {
+		printk(KERN_ERR "%s: allocation failed\n", __FUNCTION__);
+		return -ENOMEM;
+	}
+
+	hwmon->dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(hwmon->dev)) {
+		kfree(hwmon);
+		printk(KERN_ERR "%s: Class registration failed\n",
+				__FUNCTION__);
+		return PTR_ERR(hwmon->dev);
+	}
+
+	hwmon->pdata = pdata;
+
+#ifdef CONFIG_APM
+	spin_lock_init(&hwmon->apm_lock);
+
+	if (pdata->apm_report) {
+		apm_hwmon = hwmon;
+		apm_get_power_status = tsc210x_get_power_status;
+	}
+#endif
+
+	platform_set_drvdata(pdev, hwmon);
+
+	if (pdata->monitor & (TSC_BAT1 | TSC_BAT2 | TSC_AUX1 | TSC_AUX2))
+		status |= tsc210x_ports_cb(pdev->dev.parent,
+				(tsc210x_ports_t) tsc210x_ports, hwmon);
+	if (pdata->monitor & TSC_TEMP) {
+		status |= tsc210x_temp1_cb(pdev->dev.parent,
+				(tsc210x_temp_t) tsc210x_temp1, hwmon);
+		status |= tsc210x_temp2_cb(pdev->dev.parent,
+				(tsc210x_temp_t) tsc210x_temp2, hwmon);
+	}
+
+	if (status) {
+		tsc210x_ports_cb(pdev->dev.parent, 0, 0);
+		tsc210x_temp1_cb(pdev->dev.parent, 0, 0);
+		tsc210x_temp2_cb(pdev->dev.parent, 0, 0);
+		platform_set_drvdata(pdev, 0);
+#ifdef CONFIG_APM
+		if (pdata->apm_report)
+			apm_get_power_status = 0;
+#endif
+		hwmon_device_unregister(hwmon->dev);
+		kfree(hwmon);
+		return status;
+	}
+
+	if (pdata->monitor & TSC_BAT1)
+		status |= device_create_file(&pdev->dev, &dev_attr_in0_input);
+	if (pdata->monitor & TSC_BAT2)
+		status |= device_create_file(&pdev->dev, &dev_attr_in1_input);
+	if (pdata->monitor & TSC_AUX1)
+		status |= device_create_file(&pdev->dev, &dev_attr_in2_input);
+	if (pdata->monitor & TSC_AUX2)
+		status |= device_create_file(&pdev->dev, &dev_attr_in3_input);
+	if (pdata->monitor & TSC_TEMP) {
+		status |= device_create_file(&pdev->dev, &dev_attr_in4_input);
+		status |= device_create_file(&pdev->dev, &dev_attr_in5_input);
+		status |= device_create_file(&pdev->dev, &dev_attr_temp1_input);
+	}
+	if (status)	/* Not fatal */
+		printk(KERN_ERR "%s: Creating one or more "
+				"attribute files failed\n", __FUNCTION__);
+
+	return 0;
+}
+
+static int tsc210x_hwmon_remove(struct platform_device *pdev)
+{
+	struct tsc210x_hwmon *dev = platform_get_drvdata(pdev);
+
+	tsc210x_ports_cb(pdev->dev.parent, 0, 0);
+	tsc210x_temp1_cb(pdev->dev.parent, 0, 0);
+	tsc210x_temp2_cb(pdev->dev.parent, 0, 0);
+	platform_set_drvdata(pdev, 0);
+#ifdef CONFIG_APM
+	if (dev->pdata->apm_report)
+		apm_get_power_status = 0;
+#endif
+	hwmon_device_unregister(dev->dev);
+	kfree(dev);
+	return 0;
+}
+
+static struct platform_driver tsc210x_hwmon_driver = {
+	.probe 		= tsc210x_hwmon_probe,
+	.remove 	= tsc210x_hwmon_remove,
+	/* Nothing to do on suspend/resume */
+	.driver		= {
+		.name	= "tsc210x-hwmon",
+	},
+};
+
+static int __init tsc210x_hwmon_init(void)
+{
+	return platform_driver_register(&tsc210x_hwmon_driver);
+}
+
+static void __exit tsc210x_hwmon_exit(void)
+{
+	platform_driver_unregister(&tsc210x_hwmon_driver);
+}
+
+module_init(tsc210x_hwmon_init);
+module_exit(tsc210x_hwmon_exit);
+
+MODULE_AUTHOR("Andrzej Zaborowski");
+MODULE_DESCRIPTION("hwmon driver for TI TSC210x-connected sensors.");
+MODULE_LICENSE("GPL");

drivers/input/touchscreen/Kconfig

@@ -192,6 +192,20 @@ config TOUCHSCREEN_TSC2102
 	  To compile this driver as a module, choose M here: the
 	  module will be called tsc2102_ts.
 
+config TOUCHSCREEN_TSC210X
+	tristate "TSC 2101/2102 based touchscreens"
+	depends on SPI_MASTER
+	select SPI_TSC210X
+	help
+	  Say Y here if you have a touchscreen interface using a
+	  TI TSC 210x controller, and your board-specific initialisation
+	  code includes that in its table of SPI devices.
+
+	  If unsure, say N (but it's safe to say "Y").
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called tsc210x_ts.
+
 config TOUCHSCREEN_TSC2301
 	tristate "TSC2301 touchscreen support"
 	depends on SPI_TSC2301

drivers/input/touchscreen/Makefile

@@ -20,4 +20,5 @@ obj-$(CONFIG_TOUCHSCREEN_TOUCHWIN)	+= touchwin.o
 obj-$(CONFIG_TOUCHSCREEN_UCB1400)	+= ucb1400_ts.o
 obj-$(CONFIG_TOUCHSCREEN_TSC2102)	+= tsc2102_ts.o
 obj-$(CONFIG_TOUCHSCREEN_OMAP)	+= omap/
+obj-$(CONFIG_TOUCHSCREEN_TSC210X)	+= tsc210x_ts.o
 obj-$(CONFIG_TOUCHSCREEN_TSC2301)	+= tsc2301_ts.o

drivers/input/touchscreen/tsc210x_ts.c

+/*
+ * input/touchscreen/tsc210x_ts.c
+ *
+ * Touchscreen input device driver for the TSC 2101/2102 chips.
+ *
+ * Copyright (c) 2006-2007 Andrzej Zaborowski  <balrog@zabor.org>
+ *
+ * This package 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 package 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 package; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+
+#include <linux/spi/tsc210x.h>
+
+static void tsc210x_touch(struct input_dev *dev, int touching)
+{
+	if (!touching) {
+		input_report_abs(dev, ABS_X, 0);
+		input_report_abs(dev, ABS_Y, 0);
+		input_report_abs(dev, ABS_PRESSURE, 0);
+		input_sync(dev);
+	}
+
+	input_report_key(dev, BTN_TOUCH, touching);
+}
+
+static void tsc210x_coords(struct input_dev *dev, int x, int y, int z1, int z2)
+{
+	int p;
+
+	/* Calculate the touch resistance a la equation #1 */
+	if (z1 != 0)
+		p = x * (z2 - z1) / (z1 << 4);
+	else
+		p = 1;
+
+	input_report_abs(dev, ABS_X, x);
+	input_report_abs(dev, ABS_Y, y);
+	input_report_abs(dev, ABS_PRESSURE, p);
+	input_sync(dev);
+}
+
+static int tsc210x_ts_probe(struct platform_device *pdev)
+{
+	int status;
+	struct input_dev *dev;
+
+	dev = input_allocate_device();
+	if (!dev)
+		return -ENOMEM;
+
+	status = tsc210x_touch_cb(pdev->dev.parent,
+			(tsc210x_touch_t) tsc210x_touch, dev);
+	if (status) {
+		input_free_device(dev);
+		return status;
+	}
+
+	status = tsc210x_coords_cb(pdev->dev.parent,
+			(tsc210x_coords_t) tsc210x_coords, dev);
+	if (status) {
+		tsc210x_touch_cb(pdev->dev.parent, 0, 0);
+		input_free_device(dev);
+		return status;
+	}
+
+	dev->name = "TSC210x Touchscreen";
+	dev->cdev.dev = &pdev->dev;
+	dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+	dev->keybit[LONG(BTN_TOUCH)] |= BIT(BTN_TOUCH);
+	dev->absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE);
+	dev->phys = "tsc210x/input0";
+	dev->id.bustype = BUS_HOST;
+	dev->id.vendor = 0x0001;
+	dev->id.product = 0x2100;
+	dev->id.version = 0x0001;
+
+	status = input_register_device(dev);
+	if (status) {
+		tsc210x_coords_cb(pdev->dev.parent, 0, 0);
+		tsc210x_touch_cb(pdev->dev.parent, 0, 0);
+		input_free_device(dev);
+		return status;
+	}
+
+	platform_set_drvdata(pdev, dev);
+	printk(KERN_INFO "TSC210x touchscreen initialised\n");
+	return 0;
+}
+
+static int tsc210x_ts_remove(struct platform_device *pdev)
+{
+	struct input_dev *dev = (struct input_dev *)
+		platform_get_drvdata(pdev);
+
+	tsc210x_touch_cb(pdev->dev.parent, 0, 0);
+	tsc210x_coords_cb(pdev->dev.parent, 0, 0);
+	platform_set_drvdata(pdev, 0);
+	input_unregister_device(dev);
+	input_free_device(dev);
+
+	return 0;
+}
+
+static struct platform_driver tsc210x_ts_driver = {
+	.probe 		= tsc210x_ts_probe,
+	.remove 	= tsc210x_ts_remove,
+	/* Nothing to do on suspend/resume */
+	.driver		= {
+		.name	= "tsc210x-ts",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init tsc210x_ts_init(void)
+{
+	int ret;
+
+	ret = platform_driver_register(&tsc210x_ts_driver);
+	if (ret)
+		return -ENODEV;
+
+	return 0;
+}
+
+static void __exit tsc210x_ts_exit(void)
+{
+	platform_driver_unregister(&tsc210x_ts_driver);
+}
+
+module_init(tsc210x_ts_init);
+module_exit(tsc210x_ts_exit);
+
+MODULE_AUTHOR("Andrzej Zaborowski");
+MODULE_DESCRIPTION("Touchscreen input driver for TI TSC2101/2102.");
+MODULE_LICENSE("GPL");

drivers/spi/Kconfig

@@ -227,6 +227,18 @@ config SPI_TSC2102
          Say Y here if you want support for the TSC2102 chip.  It
 	 will be needed for the touchscreen driver on some boards.
 
+config SPI_TSC210X
+	depends on SPI_MASTER && EXPERIMENTAL
+	tristate "TSC2101/TSC2102 chips support"
+	help
+	  Say Y here if you want support for the TSC210x chips.  It
+	  will be needed for the touchscreen driver on some boards.
+
+	  Note that the device has to be present in the board's SPI
+	  devices table for this driver to load.  This driver doesn't
+	  automatically enable touchscreen, sensors or audio
+	  functionality - enable these in their respective menus.
+
 config SPI_TSC2301
 	tristate "TSC2301 driver"
 	depends on SPI_MASTER

drivers/spi/Makefile

@@ -35,6 +35,7 @@ obj-$(CONFIG_SPI_SPIDEV)	+= spidev.o
 obj-$(CONFIG_SPI_TLE62X0)	+= tle62x0.o
 obj-$(CONFIG_SPI_TSC2101)	+= tsc2101.o
 obj-$(CONFIG_SPI_TSC2102)	+= tsc2102.o
+obj-$(CONFIG_SPI_TSC210X)	+= tsc210x.o
 obj-$(CONFIG_SPI_TSC2301)	+= tsc2301.o
 tsc2301-objs			:= tsc2301-core.o
 tsc2301-$(CONFIG_SPI_TSC2301_AUDIO)	+= tsc2301-mixer.o

include/linux/spi/tsc210x.h

+/*
+ * include/linux/spi/tsc2102.h
+ *
+ * TI TSC2101/2102 control register definitions.
+ *
+ * Copyright (c) 2005-2007 Andrzej Zaborowski  <balrog@zabor.org>
+ *
+ * This package 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 package 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 package; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef __LINUX_SPI_TSC210X_H
+#define __LINUX_SPI_TSC210X_H
+
+struct apm_power_info;
+struct tsc210x_config {
+	int use_internal;	/* Use internal reference voltage */
+	uint32_t monitor;	/* What inputs are relevant */
+	int temp_at25c[2];	/* Thermometer calibration data */
+	void (*apm_report)(struct apm_power_info *info, int battery[]);
+				/* Report status to APM based on battery[] */
+	void *alsa_config;	/* .platform_data for the ALSA device */
+	const char *mclk;	/* Optional: bclk name */
+	const char *bclk;	/* Optional: mclk name */
+};
+
+#define TSC_BAT1	(1 << 0)
+#define TSC_BAT2	(1 << 1)
+#define TSC_AUX1	(1 << 2)
+#define TSC_AUX2	(1 << 3)
+#define TSC_TEMP	(1 << 4)
+
+#define TSC_AUX		TSC_AUX1
+#define TSC_VBAT	TSC_BAT1
+
+struct tsc210x_dev;
+extern u16 tsc210x_read_sync(struct tsc210x_dev *dev, int page, u8 address);
+extern void tsc210x_reads_sync(struct tsc210x_dev *dev, int page,
+		u8 startaddress, u16 *data, int numregs);
+extern void tsc210x_write_sync(struct tsc210x_dev *dev, int page,
+		u8 address, u16 data);
+
+typedef void (*tsc210x_touch_t)(void *context, int touching);
+typedef void (*tsc210x_coords_t)(void *context, int x, int y, int z1, int z2);
+typedef void (*tsc210x_ports_t)(void *context, int bat[], int aux[]);
+typedef void (*tsc210x_temp_t)(void *context, int temp);
+extern int tsc210x_touch_cb(struct device *dev,
+		tsc210x_touch_t handler, void *context);
+extern int tsc210x_coords_cb(struct device *dev,
+		tsc210x_coords_t handler, void *context);
+extern int tsc210x_ports_cb(struct device *dev,
+		tsc210x_ports_t handler, void *context);
+extern int tsc210x_temp1_cb(struct device *dev,
+		tsc210x_temp_t handler, void *context);
+extern int tsc210x_temp2_cb(struct device *dev,
+		tsc210x_temp_t handler, void *context);
+
+#ifdef CONFIG_SOUND
+extern void tsc210x_set_dac_volume(struct device *dev,
+		uint8_t left_ch, uint8_t right_ch);
+extern void tsc210x_set_dac_mute(struct device *dev,
+		int left_ch, int right_ch);
+extern void tsc210x_get_dac_mute(struct device *dev,
+		int *left_ch, int *right_ch);
+extern void tsc210x_dac_power(struct device *dev, int on);
+extern int tsc210x_set_rate(struct device *dev, int rate);
+extern void tsc210x_set_i2s_master(struct device *dev, int state);
+extern void tsc210x_set_deemphasis(struct device *dev, int enable);
+extern void tsc2102_set_bassboost(struct device *dev, int enable);
+#endif
+
+/*
+ * Emit a short keyclick typically in order to give feedback to
+ * user on specific events.
+ *
+ * amplitude must be between 0 (lowest) and 2 (highest).
+ * freq must be between 0 (corresponds to 62.5 Hz) and 7 (8 kHz).
+ * length should be between 2 and 32 periods.
+ *
+ * This function sleeps but for a period unrelated to the length of
+ * the sound, i.e. returning doesn't indicate that the sound has
+ * finished.
+ */
+extern void tsc210x_keyclick(struct tsc210x_dev *dev,
+		int amplitude, int freq, int length);
+
+/* Page 0, Touch Screen & Keypad Data registers */
+#define TSC210X_TS_X			0, 0x00
+#define TSC210X_TS_Y			0, 0x01
+#define TSC210X_TS_Z1			0, 0x02
+#define TSC210X_TS_Z2			0, 0x03
+#define TSC210X_TS_BAT1			0, 0x05
+#define TSC2102_TS_BAT2			0, 0x06
+#define TSC210X_TS_AUX1			0, 0x07
+#define TSC2101_TS_AUX2			0, 0x08
+#define TSC210X_TS_TEMP1		0, 0x09
+#define TSC210X_TS_TEMP2		0, 0x0a
+
+/* Page 1, Touch Screen & Keypad Control registers */
+#define TSC210X_TS_ADC_CTRL		1, 0x00
+#define TSC210X_TS_STATUS_CTRL		1, 0x01
+#define TSC2101_TS_BUFFER_CTRL		1, 0x02
+#define TSC210X_TS_REF_CTRL		1, 0x03
+#define TSC210X_TS_RESET_CTRL		1, 0x04
+#define TSC210X_TS_CONFIG_CTRL		1, 0x05
+#define TSC2101_TS_TEMPMAX_CTRL		1, 0x06
+#define TSC2101_TS_TEMPMIN_CTRL		1, 0x07
+#define TSC2101_TS_AUX1MAX_CTRL		1, 0x08
+#define TSC2101_TS_AUX1MIN_CTRL		1, 0x09
+#define TSC2101_TS_AUX2MAX_CTRL		1, 0x0a
+#define TSC2101_TS_AUX2MIN_CTRL		1, 0x0b
+#define TSC2101_TS_MCONFIG_CTRL		1, 0x0c
+#define TSC2101_TS_DELAY_CTRL		1, 0x0d
+
+/* Page 2, Audio Control registers */
+#define TSC210X_AUDIO1_CTRL		2, 0x00
+#define TSC2101_HEADSET_GAIN_CTRL	2, 0x01
+#define TSC210X_DAC_GAIN_CTRL		2, 0x02
+#define TSC2101_MIXER_GAIN_CTRL		2, 0x03
+#define TSC210X_AUDIO2_CTRL		2, 0x04
+#define TSC210X_POWER_CTRL		2, 0x05
+#define TSC210X_AUDIO3_CTRL		2, 0x06
+#define TSC210X_LCH_BASS_BOOST_N0	2, 0x07
+#define TSC210X_LCH_BASS_BOOST_N1	2, 0x08
+#define TSC210X_LCH_BASS_BOOST_N2	2, 0x09
+#define TSC210X_LCH_BASS_BOOST_N3	2, 0x0a
+#define TSC210X_LCH_BASS_BOOST_N4	2, 0x0b
+#define TSC210X_LCH_BASS_BOOST_N5	2, 0x0c
+#define TSC210X_LCH_BASS_BOOST_D1	2, 0x0d
+#define TSC210X_LCH_BASS_BOOST_D2	2, 0x0e
+#define TSC210X_LCH_BASS_BOOST_D4	2, 0x0f
+#define TSC210X_LCH_BASS_BOOST_D5	2, 0x10
+#define TSC210X_RCH_BASS_BOOST_N0	2, 0x11
+#define TSC210X_RCH_BASS_BOOST_N1	2, 0x12
+#define TSC210X_RCH_BASS_BOOST_N2	2, 0x13
+#define TSC210X_RCH_BASS_BOOST_N3	2, 0x14
+#define TSC210X_RCH_BASS_BOOST_N4	2, 0x15
+#define TSC210X_RCH_BASS_BOOST_N5	2, 0x16
+#define TSC210X_RCH_BASS_BOOST_D1	2, 0x17
+#define TSC210X_RCH_BASS_BOOST_D2	2, 0x18
+#define TSC210X_RCH_BASS_BOOST_D4	2, 0x19
+#define TSC210X_RCH_BASS_BOOST_D5	2, 0x1a
+#define TSC210X_PLL1_CTRL		2, 0x1b
+#define TSC210X_PLL2_CTRL		2, 0x1c
+#define TSC210X_AUDIO4_CTRL		2, 0x1d
+#define TSC2101_HANDSET_GAIN_CTRL	2, 0x1e
+#define TSC2101_CELL_GAIN_CTRL		2, 0x1f
+#define TSC2101_AUIDO5_CTRL		2, 0x20
+#define TSC2101_AUDIO6_CTRL		2, 0x21
+#define TSC2101_AUDIO7_CTRL		2, 0x22
+#define TSC2101_GPIO_CTRL		2, 0x23
+#define TSC2101_IN_AGC_CTRL		2, 0x24
+#define TSC2101_POWER_STATUS		2, 0x25
+#define TSC2101_MIX_AGC_CTRL		2, 0x26
+#define TSC2101_CELL_AGC_CTRL		2, 0x27
+
+/* Field masks for Audio Control 1 */
+#define AC1_WLEN(ARG)			(((ARG) & 0x03) << 10)
+#define AC1_DATFM(ARG)			(((ARG) & 0x03) << 8)
+#define AC1_DACFS(ARG)			((ARG) & 0x3f)
+
+/* Field masks for TSC2102_DAC_GAIN_CTRL */
+#define DGC_DALMU			(1 << 15)
+#define DGC_DALVL(ARG)			(((ARG) & 0x7f) << 8)
+#define DGC_DARMU			(1 << 7)
+#define DGC_DARVL(ARG)			(((ARG) & 0x7f))
+
+/* Field formats for TSC210X_AUDIO2_CTRL */
+#define AC2_KCLEN			(1 << 15)
+#define AC2_KCLAC(ARG)			(((ARG) & 0x07) << 12)
+#define AC2_KCLFRQ(ARG)			(((ARG) & 0x07) << 8)
+#define AC2_KCLLN(ARG)			(((ARG) & 0x0f) << 4)
+#define AC2_DLGAF			(1 << 3)
+#define AC2_DRGAF			(1 << 2)
+#define AC2_DASTC			(1 << 1)
+
+/* Field masks for TSC210X_DAC_POWER_CTRL */
+#define CPC_PWDNC			(1 << 15)
+#define CPC_DAODRC			(1 << 12)
+#define CPC_DAPWDN			(1 << 10)
+#define CPC_VGPWDN			(1 << 8)
+#define CPC_DAPWDF			(1 << 6)
+#define CPC_BASSBC			(1 << 1)
+#define CPC_DEEMPF			(0x01)
+
+/* Field masks for TSC210X_AUDIO3_CTRL */
+#define AC3_DMSVOL(ARG)			(((ARG) & 0x03) << 14)
+#define AC3_REFFS			(1 << 13)
+#define AC3_DAXFM			(1 << 12)
+#define AC3_SLVMS			(1 << 11)
+#define AC3_DALOVF			(1 << 7)
+#define AC3_DAROVF			(1 << 6)
+#define AC3_REVID(ARG)			(((ARG) & 0x07))
+
+/* Field masks for TSC210X_PLL1_CTRL */
+#define PLL1_PLLEN			(1 << 15)
+#define PLL1_Q_VAL(ARG)			(((ARG) & 0x0f) << 11)
+#define PLL1_P_VAL(ARG)			(((ARG) & 0x07) << 8)
+#define PLL1_I_VAL(ARG)			(((ARG) & 0x3f) << 2)
+
+/* Field masks for TSC210X_PLL2_CTRL */
+#define PLL2_D_VAL(ARG)			(((ARG) & 0x3fff) << 2)
+
+/* Field masks for TSC210X_AUDIO4_CTRL */
+#define AC4_DASTPD			(1 << 14)
+
+struct tsc210x_rate_info_s {
+	u16 sample_rate;
+	u8 divisor;
+	u8 fs_44k;	/* 44.1 kHz Fsref if 1, 48 kHz if 0 */
+};
+
+#endif	/* __LINUX_SPI_TSC210X_H */