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-rw-r--r--drivers/input/touchscreen/88pm860x-ts.c237
-rw-r--r--drivers/input/touchscreen/Kconfig21
-rw-r--r--drivers/input/touchscreen/Makefile1
-rw-r--r--drivers/input/touchscreen/ad7877.c2
-rw-r--r--drivers/input/touchscreen/ads7846.c20
-rw-r--r--drivers/input/touchscreen/atmel-wm97xx.c1
-rw-r--r--drivers/input/touchscreen/da9034-ts.c1
-rw-r--r--drivers/input/touchscreen/eeti_ts.c1
-rw-r--r--drivers/input/touchscreen/jornada720_ts.c1
-rw-r--r--drivers/input/touchscreen/mc13783_ts.c5
-rw-r--r--drivers/input/touchscreen/mcs5000_ts.c1
-rw-r--r--drivers/input/touchscreen/migor_ts.c1
-rw-r--r--drivers/input/touchscreen/pcap_ts.c1
-rw-r--r--drivers/input/touchscreen/s3c2410_ts.c1
-rw-r--r--drivers/input/touchscreen/ucb1400_ts.c1
-rw-r--r--drivers/input/touchscreen/w90p910_ts.c1
-rw-r--r--drivers/input/touchscreen/wm97xx-core.c1
17 files changed, 288 insertions, 9 deletions
diff --git a/drivers/input/touchscreen/88pm860x-ts.c b/drivers/input/touchscreen/88pm860x-ts.c
new file mode 100644
index 000000000000..b3aebc2166ba
--- /dev/null
+++ b/drivers/input/touchscreen/88pm860x-ts.c
@@ -0,0 +1,237 @@
+/*
+ * Touchscreen driver for Marvell 88PM860x
+ *
+ * Copyright (C) 2009 Marvell International Ltd.
+ * Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/mfd/88pm860x.h>
+#include <linux/slab.h>
+
+#define MEAS_LEN (8)
+#define ACCURATE_BIT (12)
+
+/* touch register */
+#define MEAS_EN3 (0x52)
+
+#define MEAS_TSIX_1 (0x8D)
+#define MEAS_TSIX_2 (0x8E)
+#define MEAS_TSIY_1 (0x8F)
+#define MEAS_TSIY_2 (0x90)
+#define MEAS_TSIZ1_1 (0x91)
+#define MEAS_TSIZ1_2 (0x92)
+#define MEAS_TSIZ2_1 (0x93)
+#define MEAS_TSIZ2_2 (0x94)
+
+/* bit definitions of touch */
+#define MEAS_PD_EN (1 << 3)
+#define MEAS_TSIX_EN (1 << 4)
+#define MEAS_TSIY_EN (1 << 5)
+#define MEAS_TSIZ1_EN (1 << 6)
+#define MEAS_TSIZ2_EN (1 << 7)
+
+struct pm860x_touch {
+ struct input_dev *idev;
+ struct i2c_client *i2c;
+ struct pm860x_chip *chip;
+ int irq;
+ int res_x; /* resistor of Xplate */
+};
+
+static irqreturn_t pm860x_touch_handler(int irq, void *data)
+{
+ struct pm860x_touch *touch = data;
+ struct pm860x_chip *chip = touch->chip;
+ unsigned char buf[MEAS_LEN];
+ int x, y, pen_down;
+ int z1, z2, rt = 0;
+ int ret;
+
+ ret = pm860x_bulk_read(touch->i2c, MEAS_TSIX_1, MEAS_LEN, buf);
+ if (ret < 0)
+ goto out;
+
+ pen_down = buf[1] & (1 << 6);
+ x = ((buf[0] & 0xFF) << 4) | (buf[1] & 0x0F);
+ y = ((buf[2] & 0xFF) << 4) | (buf[3] & 0x0F);
+ z1 = ((buf[4] & 0xFF) << 4) | (buf[5] & 0x0F);
+ z2 = ((buf[6] & 0xFF) << 4) | (buf[7] & 0x0F);
+
+ if (pen_down) {
+ if ((x != 0) && (z1 != 0) && (touch->res_x != 0)) {
+ rt = z2 / z1 - 1;
+ rt = (rt * touch->res_x * x) >> ACCURATE_BIT;
+ dev_dbg(chip->dev, "z1:%d, z2:%d, rt:%d\n",
+ z1, z2, rt);
+ }
+ input_report_abs(touch->idev, ABS_X, x);
+ input_report_abs(touch->idev, ABS_Y, y);
+ input_report_abs(touch->idev, ABS_PRESSURE, rt);
+ input_report_key(touch->idev, BTN_TOUCH, 1);
+ dev_dbg(chip->dev, "pen down at [%d, %d].\n", x, y);
+ } else {
+ input_report_abs(touch->idev, ABS_PRESSURE, 0);
+ input_report_key(touch->idev, BTN_TOUCH, 0);
+ dev_dbg(chip->dev, "pen release\n");
+ }
+ input_sync(touch->idev);
+
+out:
+ return IRQ_HANDLED;
+}
+
+static int pm860x_touch_open(struct input_dev *dev)
+{
+ struct pm860x_touch *touch = input_get_drvdata(dev);
+ int data, ret;
+
+ data = MEAS_PD_EN | MEAS_TSIX_EN | MEAS_TSIY_EN
+ | MEAS_TSIZ1_EN | MEAS_TSIZ2_EN;
+ ret = pm860x_set_bits(touch->i2c, MEAS_EN3, data, data);
+ if (ret < 0)
+ goto out;
+ return 0;
+out:
+ return ret;
+}
+
+static void pm860x_touch_close(struct input_dev *dev)
+{
+ struct pm860x_touch *touch = input_get_drvdata(dev);
+ int data;
+
+ data = MEAS_PD_EN | MEAS_TSIX_EN | MEAS_TSIY_EN
+ | MEAS_TSIZ1_EN | MEAS_TSIZ2_EN;
+ pm860x_set_bits(touch->i2c, MEAS_EN3, data, 0);
+}
+
+static int __devinit pm860x_touch_probe(struct platform_device *pdev)
+{
+ struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
+ struct pm860x_platform_data *pm860x_pdata = \
+ pdev->dev.parent->platform_data;
+ struct pm860x_touch_pdata *pdata = NULL;
+ struct pm860x_touch *touch;
+ int irq, ret;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "No IRQ resource!\n");
+ return -EINVAL;
+ }
+
+ if (!pm860x_pdata) {
+ dev_err(&pdev->dev, "platform data is missing\n");
+ return -EINVAL;
+ }
+
+ pdata = pm860x_pdata->touch;
+ if (!pdata) {
+ dev_err(&pdev->dev, "touchscreen data is missing\n");
+ return -EINVAL;
+ }
+
+ touch = kzalloc(sizeof(struct pm860x_touch), GFP_KERNEL);
+ if (touch == NULL)
+ return -ENOMEM;
+ dev_set_drvdata(&pdev->dev, touch);
+
+ touch->idev = input_allocate_device();
+ if (touch->idev == NULL) {
+ dev_err(&pdev->dev, "Failed to allocate input device!\n");
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ touch->idev->name = "88pm860x-touch";
+ touch->idev->phys = "88pm860x/input0";
+ touch->idev->id.bustype = BUS_I2C;
+ touch->idev->dev.parent = &pdev->dev;
+ touch->idev->open = pm860x_touch_open;
+ touch->idev->close = pm860x_touch_close;
+ touch->chip = chip;
+ touch->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
+ touch->irq = irq + chip->irq_base;
+ touch->res_x = pdata->res_x;
+ input_set_drvdata(touch->idev, touch);
+
+ ret = request_threaded_irq(touch->irq, NULL, pm860x_touch_handler,
+ IRQF_ONESHOT, "touch", touch);
+ if (ret < 0)
+ goto out_irq;
+
+ __set_bit(EV_ABS, touch->idev->evbit);
+ __set_bit(ABS_X, touch->idev->absbit);
+ __set_bit(ABS_Y, touch->idev->absbit);
+ __set_bit(ABS_PRESSURE, touch->idev->absbit);
+ __set_bit(EV_SYN, touch->idev->evbit);
+ __set_bit(EV_KEY, touch->idev->evbit);
+ __set_bit(BTN_TOUCH, touch->idev->keybit);
+
+ input_set_abs_params(touch->idev, ABS_X, 0, 1 << ACCURATE_BIT, 0, 0);
+ input_set_abs_params(touch->idev, ABS_Y, 0, 1 << ACCURATE_BIT, 0, 0);
+ input_set_abs_params(touch->idev, ABS_PRESSURE, 0, 1 << ACCURATE_BIT,
+ 0, 0);
+
+ ret = input_register_device(touch->idev);
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to register touch!\n");
+ goto out_rg;
+ }
+
+ platform_set_drvdata(pdev, touch);
+ return 0;
+out_rg:
+ free_irq(touch->irq, touch);
+out_irq:
+ input_free_device(touch->idev);
+out:
+ kfree(touch);
+ return ret;
+}
+
+static int __devexit pm860x_touch_remove(struct platform_device *pdev)
+{
+ struct pm860x_touch *touch = platform_get_drvdata(pdev);
+
+ input_unregister_device(touch->idev);
+ free_irq(touch->irq, touch);
+ platform_set_drvdata(pdev, NULL);
+ kfree(touch);
+ return 0;
+}
+
+static struct platform_driver pm860x_touch_driver = {
+ .driver = {
+ .name = "88pm860x-touch",
+ .owner = THIS_MODULE,
+ },
+ .probe = pm860x_touch_probe,
+ .remove = __devexit_p(pm860x_touch_remove),
+};
+
+static int __init pm860x_touch_init(void)
+{
+ return platform_driver_register(&pm860x_touch_driver);
+}
+module_init(pm860x_touch_init);
+
+static void __exit pm860x_touch_exit(void)
+{
+ platform_driver_unregister(&pm860x_touch_driver);
+}
+module_exit(pm860x_touch_exit);
+
+MODULE_DESCRIPTION("Touchscreen driver for Marvell Semiconductor 88PM860x");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:88pm860x-touch");
+
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 6457e060ae49..8a8fa4d2d6a8 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -11,18 +11,31 @@ menuconfig INPUT_TOUCHSCREEN
if INPUT_TOUCHSCREEN
+config TOUCHSCREEN_88PM860X
+ tristate "Marvell 88PM860x touchscreen"
+ depends on MFD_88PM860X
+ help
+ Say Y here if you have a 88PM860x PMIC and want to enable
+ support for the built-in touchscreen.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called 88pm860x-ts.
+
config TOUCHSCREEN_ADS7846
- tristate "ADS7846/TSC2046 and ADS7843 based touchscreens"
+ tristate "ADS7846/TSC2046/AD7873 and AD(S)7843 based touchscreens"
depends on SPI_MASTER
depends on HWMON = n || HWMON
help
Say Y here if you have a touchscreen interface using the
- ADS7846/TSC2046 or ADS7843 controller, and your board-specific
- setup code includes that in its table of SPI devices.
+ ADS7846/TSC2046/AD7873 or ADS7843/AD7843 controller,
+ and your board-specific setup code includes that in its
+ table of SPI devices.
If HWMON is selected, and the driver is told the reference voltage
on your board, you will also get hwmon interfaces for the voltage
- (and on ads7846/tsc2046, temperature) sensors of this chip.
+ (and on ads7846/tsc2046/ad7873, temperature) sensors of this chip.
If unsure, say N (but it's safe to say "Y").
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index d61a3b4def9a..7fef7d5cca23 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -6,6 +6,7 @@
wm97xx-ts-y := wm97xx-core.o
+obj-$(CONFIG_TOUCHSCREEN_88PM860X) += 88pm860x-ts.o
obj-$(CONFIG_TOUCHSCREEN_AD7877) += ad7877.o
obj-$(CONFIG_TOUCHSCREEN_AD7879) += ad7879.o
obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
index eb83939c705e..e019d53d1ab4 100644
--- a/drivers/input/touchscreen/ad7877.c
+++ b/drivers/input/touchscreen/ad7877.c
@@ -46,7 +46,7 @@
#include <linux/spi/ad7877.h>
#include <asm/irq.h>
-#define TS_PEN_UP_TIMEOUT msecs_to_jiffies(50)
+#define TS_PEN_UP_TIMEOUT msecs_to_jiffies(100)
#define MAX_SPI_FREQ_HZ 20000000
#define MAX_12BIT ((1<<12)-1)
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 8b05d8e97543..532279cda0e4 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -36,6 +36,7 @@
* TSC2046 is just newer ads7846 silicon.
* Support for ads7843 tested on Atmel at91sam926x-EK.
* Support for ads7845 has only been stubbed in.
+ * Support for Analog Devices AD7873 and AD7843 tested.
*
* IRQ handling needs a workaround because of a shortcoming in handling
* edge triggered IRQs on some platforms like the OMAP1/2. These
@@ -821,6 +822,9 @@ static int ads7846_suspend(struct spi_device *spi, pm_message_t message)
spin_unlock_irq(&ts->lock);
+ if (device_may_wakeup(&ts->spi->dev))
+ enable_irq_wake(ts->spi->irq);
+
return 0;
}
@@ -829,6 +833,9 @@ static int ads7846_resume(struct spi_device *spi)
{
struct ads7846 *ts = dev_get_drvdata(&spi->dev);
+ if (device_may_wakeup(&ts->spi->dev))
+ disable_irq_wake(ts->spi->irq);
+
spin_lock_irq(&ts->lock);
ts->is_suspended = 0;
@@ -984,6 +991,15 @@ static int __devinit ads7846_probe(struct spi_device *spi)
vref = pdata->keep_vref_on;
+ if (ts->model == 7873) {
+ /* The AD7873 is almost identical to the ADS7846
+ * keep VREF off during differential/ratiometric
+ * conversion modes
+ */
+ ts->model = 7846;
+ vref = 0;
+ }
+
/* set up the transfers to read touchscreen state; this assumes we
* use formula #2 for pressure, not #3.
*/
@@ -1191,6 +1207,8 @@ static int __devinit ads7846_probe(struct spi_device *spi)
if (err)
goto err_remove_attr_group;
+ device_init_wakeup(&spi->dev, pdata->wakeup);
+
return 0;
err_remove_attr_group:
@@ -1220,6 +1238,8 @@ static int __devexit ads7846_remove(struct spi_device *spi)
{
struct ads7846 *ts = dev_get_drvdata(&spi->dev);
+ device_init_wakeup(&spi->dev, false);
+
ads784x_hwmon_unregister(spi, ts);
input_unregister_device(ts->input);
diff --git a/drivers/input/touchscreen/atmel-wm97xx.c b/drivers/input/touchscreen/atmel-wm97xx.c
index a12242f77e23..fa8e56bd9094 100644
--- a/drivers/input/touchscreen/atmel-wm97xx.c
+++ b/drivers/input/touchscreen/atmel-wm97xx.c
@@ -19,6 +19,7 @@
#include <linux/timer.h>
#include <linux/gpio.h>
#include <linux/io.h>
+#include <linux/slab.h>
#define AC97C_ICA 0x10
#define AC97C_CBRHR 0x30
diff --git a/drivers/input/touchscreen/da9034-ts.c b/drivers/input/touchscreen/da9034-ts.c
index 3ffd4c4b170c..2b72a5923c16 100644
--- a/drivers/input/touchscreen/da9034-ts.c
+++ b/drivers/input/touchscreen/da9034-ts.c
@@ -19,6 +19,7 @@
#include <linux/input.h>
#include <linux/workqueue.h>
#include <linux/mfd/da903x.h>
+#include <linux/slab.h>
#define DA9034_MANUAL_CTRL 0x50
#define DA9034_LDO_ADC_EN (1 << 4)
diff --git a/drivers/input/touchscreen/eeti_ts.c b/drivers/input/touchscreen/eeti_ts.c
index 9029bd3f34e5..204b8a1a601c 100644
--- a/drivers/input/touchscreen/eeti_ts.c
+++ b/drivers/input/touchscreen/eeti_ts.c
@@ -33,6 +33,7 @@
#include <linux/timer.h>
#include <linux/gpio.h>
#include <linux/input/eeti_ts.h>
+#include <linux/slab.h>
static int flip_x;
module_param(flip_x, bool, 0644);
diff --git a/drivers/input/touchscreen/jornada720_ts.c b/drivers/input/touchscreen/jornada720_ts.c
index c8b7e8a45c4d..4b0a061811ff 100644
--- a/drivers/input/touchscreen/jornada720_ts.c
+++ b/drivers/input/touchscreen/jornada720_ts.c
@@ -18,6 +18,7 @@
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <mach/hardware.h>
#include <mach/jornada720.h>
diff --git a/drivers/input/touchscreen/mc13783_ts.c b/drivers/input/touchscreen/mc13783_ts.c
index be115b3b65eb..c5bc62d85bb6 100644
--- a/drivers/input/touchscreen/mc13783_ts.c
+++ b/drivers/input/touchscreen/mc13783_ts.c
@@ -17,6 +17,7 @@
#include <linux/module.h>
#include <linux/input.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/init.h>
#define MC13783_TS_NAME "mc13783-ts"
@@ -44,7 +45,7 @@ static irqreturn_t mc13783_ts_handler(int irq, void *data)
{
struct mc13783_ts_priv *priv = data;
- mc13783_ackirq(priv->mc13783, irq);
+ mc13783_irq_ack(priv->mc13783, irq);
/*
* Kick off reading coordinates. Note that if work happens already
@@ -135,7 +136,7 @@ static int mc13783_ts_open(struct input_dev *dev)
mc13783_lock(priv->mc13783);
- mc13783_ackirq(priv->mc13783, MC13783_IRQ_TS);
+ mc13783_irq_ack(priv->mc13783, MC13783_IRQ_TS);
ret = mc13783_irq_request(priv->mc13783, MC13783_IRQ_TS,
mc13783_ts_handler, MC13783_TS_NAME, priv);
diff --git a/drivers/input/touchscreen/mcs5000_ts.c b/drivers/input/touchscreen/mcs5000_ts.c
index 4c28b89757f9..ce8ab0269f6f 100644
--- a/drivers/input/touchscreen/mcs5000_ts.c
+++ b/drivers/input/touchscreen/mcs5000_ts.c
@@ -20,6 +20,7 @@
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/irq.h>
+#include <linux/slab.h>
/* Registers */
#define MCS5000_TS_STATUS 0x00
diff --git a/drivers/input/touchscreen/migor_ts.c b/drivers/input/touchscreen/migor_ts.c
index 141dd584330e..defe5dd3627c 100644
--- a/drivers/input/touchscreen/migor_ts.c
+++ b/drivers/input/touchscreen/migor_ts.c
@@ -23,6 +23,7 @@
#include <linux/kernel.h>
#include <linux/input.h>
#include <linux/interrupt.h>
+#include <linux/slab.h>
#include <asm/io.h>
#include <linux/i2c.h>
#include <linux/timer.h>
diff --git a/drivers/input/touchscreen/pcap_ts.c b/drivers/input/touchscreen/pcap_ts.c
index b79097e3028a..ea6ef16e59b4 100644
--- a/drivers/input/touchscreen/pcap_ts.c
+++ b/drivers/input/touchscreen/pcap_ts.c
@@ -14,6 +14,7 @@
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/string.h>
+#include <linux/slab.h>
#include <linux/pm.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c
index 3755a47d053c..98a7d1279486 100644
--- a/drivers/input/touchscreen/s3c2410_ts.c
+++ b/drivers/input/touchscreen/s3c2410_ts.c
@@ -26,7 +26,6 @@
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/slab.h>
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/init.h>
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index 89dcbe7b4b02..028a5363eea1 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -26,7 +26,6 @@
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/suspend.h>
-#include <linux/slab.h>
#include <linux/kthread.h>
#include <linux/freezer.h>
#include <linux/ucb1400.h>
diff --git a/drivers/input/touchscreen/w90p910_ts.c b/drivers/input/touchscreen/w90p910_ts.c
index 6ccbdbbf33fe..cc18265be1a8 100644
--- a/drivers/input/touchscreen/w90p910_ts.c
+++ b/drivers/input/touchscreen/w90p910_ts.c
@@ -16,6 +16,7 @@
#include <linux/clk.h>
#include <linux/input.h>
#include <linux/interrupt.h>
+#include <linux/slab.h>
/* ADC controller bit defines */
#define ADC_DELAY 0xf00
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index f944918466e5..5109bf3dd858 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -48,6 +48,7 @@
#include <linux/wm97xx.h>
#include <linux/uaccess.h>
#include <linux/io.h>
+#include <linux/slab.h>
#define TS_NAME "wm97xx"
#define WM_CORE_VERSION "1.00"
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