diff options
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/input-compat.c | 6 | ||||
| -rw-r--r-- | drivers/input/input-compat.h | 14 | ||||
| -rw-r--r-- | drivers/input/input.c | 2 | ||||
| -rw-r--r-- | drivers/input/joystick/analog.c | 6 | ||||
| -rw-r--r-- | drivers/input/keyboard/adp5588-keys.c | 10 | ||||
| -rw-r--r-- | drivers/input/keyboard/adp5589-keys.c | 12 | ||||
| -rw-r--r-- | drivers/input/misc/max77693-haptic.c | 17 | ||||
| -rw-r--r-- | drivers/input/misc/max8997_haptic.c | 6 | ||||
| -rw-r--r-- | drivers/input/misc/pwm-beeper.c | 6 | ||||
| -rw-r--r-- | drivers/input/misc/uinput.c | 4 | ||||
| -rw-r--r-- | drivers/input/touchscreen/Kconfig | 9 | ||||
| -rw-r--r-- | drivers/input/touchscreen/Makefile | 1 | ||||
| -rw-r--r-- | drivers/input/touchscreen/ad7879.c | 10 | ||||
| -rw-r--r-- | drivers/input/touchscreen/cyttsp4_core.c | 2 | ||||
| -rw-r--r-- | drivers/input/touchscreen/fsl-imx25-tcq.c | 596 | ||||
| -rw-r--r-- | drivers/input/touchscreen/sun4i-ts.c | 9 | ||||
| -rw-r--r-- | drivers/input/touchscreen/wdt87xx_i2c.c | 2 |
17 files changed, 661 insertions, 51 deletions
diff --git a/drivers/input/input-compat.c b/drivers/input/input-compat.c index 64ca7113ff28..d84d20b9cec0 100644 --- a/drivers/input/input-compat.c +++ b/drivers/input/input-compat.c @@ -17,7 +17,7 @@ int input_event_from_user(const char __user *buffer, struct input_event *event) { - if (INPUT_COMPAT_TEST && !COMPAT_USE_64BIT_TIME) { + if (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) { struct input_event_compat compat_event; if (copy_from_user(&compat_event, buffer, @@ -41,7 +41,7 @@ int input_event_from_user(const char __user *buffer, int input_event_to_user(char __user *buffer, const struct input_event *event) { - if (INPUT_COMPAT_TEST && !COMPAT_USE_64BIT_TIME) { + if (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) { struct input_event_compat compat_event; compat_event.time.tv_sec = event->time.tv_sec; @@ -65,7 +65,7 @@ int input_event_to_user(char __user *buffer, int input_ff_effect_from_user(const char __user *buffer, size_t size, struct ff_effect *effect) { - if (INPUT_COMPAT_TEST) { + if (in_compat_syscall()) { struct ff_effect_compat *compat_effect; if (size != sizeof(struct ff_effect_compat)) diff --git a/drivers/input/input-compat.h b/drivers/input/input-compat.h index 148f66fe3205..1563160a7af3 100644 --- a/drivers/input/input-compat.h +++ b/drivers/input/input-compat.h @@ -17,18 +17,6 @@ #ifdef CONFIG_COMPAT -/* Note to the author of this code: did it ever occur to - you why the ifdefs are needed? Think about it again. -AK */ -#if defined(CONFIG_X86_64) || defined(CONFIG_TILE) -# define INPUT_COMPAT_TEST is_compat_task() -#elif defined(CONFIG_S390) -# define INPUT_COMPAT_TEST test_thread_flag(TIF_31BIT) -#elif defined(CONFIG_MIPS) -# define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT_ADDR) -#else -# define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT) -#endif - struct input_event_compat { struct compat_timeval time; __u16 type; @@ -67,7 +55,7 @@ struct ff_effect_compat { static inline size_t input_event_size(void) { - return (INPUT_COMPAT_TEST && !COMPAT_USE_64BIT_TIME) ? + return (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) ? sizeof(struct input_event_compat) : sizeof(struct input_event); } diff --git a/drivers/input/input.c b/drivers/input/input.c index 880605959aa6..b87ffbd4547d 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -1015,7 +1015,7 @@ static int input_bits_to_string(char *buf, int buf_size, { int len = 0; - if (INPUT_COMPAT_TEST) { + if (in_compat_syscall()) { u32 dword = bits >> 32; if (dword || !skip_empty) len += snprintf(buf, buf_size, "%x ", dword); diff --git a/drivers/input/joystick/analog.c b/drivers/input/joystick/analog.c index 6f8b084e13d0..3d8ff09eba57 100644 --- a/drivers/input/joystick/analog.c +++ b/drivers/input/joystick/analog.c @@ -143,9 +143,9 @@ struct analog_port { #include <linux/i8253.h> -#define GET_TIME(x) do { if (cpu_has_tsc) x = (unsigned int)rdtsc(); else x = get_time_pit(); } while (0) -#define DELTA(x,y) (cpu_has_tsc ? ((y) - (x)) : ((x) - (y) + ((x) < (y) ? PIT_TICK_RATE / HZ : 0))) -#define TIME_NAME (cpu_has_tsc?"TSC":"PIT") +#define GET_TIME(x) do { if (boot_cpu_has(X86_FEATURE_TSC)) x = (unsigned int)rdtsc(); else x = get_time_pit(); } while (0) +#define DELTA(x,y) (boot_cpu_has(X86_FEATURE_TSC) ? ((y) - (x)) : ((x) - (y) + ((x) < (y) ? PIT_TICK_RATE / HZ : 0))) +#define TIME_NAME (boot_cpu_has(X86_FEATURE_TSC)?"TSC":"PIT") static unsigned int get_time_pit(void) { unsigned long flags; diff --git a/drivers/input/keyboard/adp5588-keys.c b/drivers/input/keyboard/adp5588-keys.c index 21a62d0fa764..53fe9a3fb620 100644 --- a/drivers/input/keyboard/adp5588-keys.c +++ b/drivers/input/keyboard/adp5588-keys.c @@ -73,7 +73,7 @@ static int adp5588_write(struct i2c_client *client, u8 reg, u8 val) #ifdef CONFIG_GPIOLIB static int adp5588_gpio_get_value(struct gpio_chip *chip, unsigned off) { - struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc); + struct adp5588_kpad *kpad = gpiochip_get_data(chip); unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]); unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]); int val; @@ -93,7 +93,7 @@ static int adp5588_gpio_get_value(struct gpio_chip *chip, unsigned off) static void adp5588_gpio_set_value(struct gpio_chip *chip, unsigned off, int val) { - struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc); + struct adp5588_kpad *kpad = gpiochip_get_data(chip); unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]); unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]); @@ -112,7 +112,7 @@ static void adp5588_gpio_set_value(struct gpio_chip *chip, static int adp5588_gpio_direction_input(struct gpio_chip *chip, unsigned off) { - struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc); + struct adp5588_kpad *kpad = gpiochip_get_data(chip); unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]); unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]); int ret; @@ -130,7 +130,7 @@ static int adp5588_gpio_direction_input(struct gpio_chip *chip, unsigned off) static int adp5588_gpio_direction_output(struct gpio_chip *chip, unsigned off, int val) { - struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc); + struct adp5588_kpad *kpad = gpiochip_get_data(chip); unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]); unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]); int ret; @@ -210,7 +210,7 @@ static int adp5588_gpio_add(struct adp5588_kpad *kpad) mutex_init(&kpad->gpio_lock); - error = gpiochip_add(&kpad->gc); + error = gpiochip_add_data(&kpad->gc, kpad); if (error) { dev_err(dev, "gpiochip_add failed, err: %d\n", error); return error; diff --git a/drivers/input/keyboard/adp5589-keys.c b/drivers/input/keyboard/adp5589-keys.c index c01a1d648f9f..32d94c63dc33 100644 --- a/drivers/input/keyboard/adp5589-keys.c +++ b/drivers/input/keyboard/adp5589-keys.c @@ -387,7 +387,7 @@ static int adp5589_write(struct i2c_client *client, u8 reg, u8 val) #ifdef CONFIG_GPIOLIB static int adp5589_gpio_get_value(struct gpio_chip *chip, unsigned off) { - struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc); + struct adp5589_kpad *kpad = gpiochip_get_data(chip); unsigned int bank = kpad->var->bank(kpad->gpiomap[off]); unsigned int bit = kpad->var->bit(kpad->gpiomap[off]); @@ -399,7 +399,7 @@ static int adp5589_gpio_get_value(struct gpio_chip *chip, unsigned off) static void adp5589_gpio_set_value(struct gpio_chip *chip, unsigned off, int val) { - struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc); + struct adp5589_kpad *kpad = gpiochip_get_data(chip); unsigned int bank = kpad->var->bank(kpad->gpiomap[off]); unsigned int bit = kpad->var->bit(kpad->gpiomap[off]); @@ -418,7 +418,7 @@ static void adp5589_gpio_set_value(struct gpio_chip *chip, static int adp5589_gpio_direction_input(struct gpio_chip *chip, unsigned off) { - struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc); + struct adp5589_kpad *kpad = gpiochip_get_data(chip); unsigned int bank = kpad->var->bank(kpad->gpiomap[off]); unsigned int bit = kpad->var->bit(kpad->gpiomap[off]); int ret; @@ -438,7 +438,7 @@ static int adp5589_gpio_direction_input(struct gpio_chip *chip, unsigned off) static int adp5589_gpio_direction_output(struct gpio_chip *chip, unsigned off, int val) { - struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc); + struct adp5589_kpad *kpad = gpiochip_get_data(chip); unsigned int bank = kpad->var->bank(kpad->gpiomap[off]); unsigned int bit = kpad->var->bit(kpad->gpiomap[off]); int ret; @@ -525,9 +525,9 @@ static int adp5589_gpio_add(struct adp5589_kpad *kpad) mutex_init(&kpad->gpio_lock); - error = gpiochip_add(&kpad->gc); + error = gpiochip_add_data(&kpad->gc, kpad); if (error) { - dev_err(dev, "gpiochip_add failed, err: %d\n", error); + dev_err(dev, "gpiochip_add_data() failed, err: %d\n", error); return error; } diff --git a/drivers/input/misc/max77693-haptic.c b/drivers/input/misc/max77693-haptic.c index 6d96bff32a0e..29ddeb7be84b 100644 --- a/drivers/input/misc/max77693-haptic.c +++ b/drivers/input/misc/max77693-haptic.c @@ -70,10 +70,13 @@ struct max77693_haptic { static int max77693_haptic_set_duty_cycle(struct max77693_haptic *haptic) { - int delta = (haptic->pwm_dev->period + haptic->pwm_duty) / 2; + struct pwm_args pargs; + int delta; int error; - error = pwm_config(haptic->pwm_dev, delta, haptic->pwm_dev->period); + pwm_get_args(haptic->pwm_dev, &pargs); + delta = (pargs.period + haptic->pwm_duty) / 2; + error = pwm_config(haptic->pwm_dev, delta, pargs.period); if (error) { dev_err(haptic->dev, "failed to configure pwm: %d\n", error); return error; @@ -234,6 +237,7 @@ static int max77693_haptic_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect) { struct max77693_haptic *haptic = input_get_drvdata(dev); + struct pwm_args pargs; u64 period_mag_multi; haptic->magnitude = effect->u.rumble.strong_magnitude; @@ -245,7 +249,8 @@ static int max77693_haptic_play_effect(struct input_dev *dev, void *data, * The formula to convert magnitude to pwm_duty as follows: * - pwm_duty = (magnitude * pwm_period) / MAX_MAGNITUDE(0xFFFF) */ - period_mag_multi = (u64)haptic->pwm_dev->period * haptic->magnitude; + pwm_get_args(haptic->pwm_dev, &pargs); + period_mag_multi = (u64)pargs.period * haptic->magnitude; haptic->pwm_duty = (unsigned int)(period_mag_multi >> MAX_MAGNITUDE_SHIFT); @@ -329,6 +334,12 @@ static int max77693_haptic_probe(struct platform_device *pdev) return PTR_ERR(haptic->pwm_dev); } + /* + * FIXME: pwm_apply_args() should be removed when switching to the + * atomic PWM API. + */ + pwm_apply_args(haptic->pwm_dev); + haptic->motor_reg = devm_regulator_get(&pdev->dev, "haptic"); if (IS_ERR(haptic->motor_reg)) { dev_err(&pdev->dev, "failed to get regulator\n"); diff --git a/drivers/input/misc/max8997_haptic.c b/drivers/input/misc/max8997_haptic.c index 8d6326d7e7be..99bc762881d5 100644 --- a/drivers/input/misc/max8997_haptic.c +++ b/drivers/input/misc/max8997_haptic.c @@ -306,6 +306,12 @@ static int max8997_haptic_probe(struct platform_device *pdev) error); goto err_free_mem; } + + /* + * FIXME: pwm_apply_args() should be removed when switching to + * the atomic PWM API. + */ + pwm_apply_args(chip->pwm); break; default: diff --git a/drivers/input/misc/pwm-beeper.c b/drivers/input/misc/pwm-beeper.c index 18663d4edae5..5f9655d49a65 100644 --- a/drivers/input/misc/pwm-beeper.c +++ b/drivers/input/misc/pwm-beeper.c @@ -115,6 +115,12 @@ static int pwm_beeper_probe(struct platform_device *pdev) goto err_free; } + /* + * FIXME: pwm_apply_args() should be removed when switching to + * the atomic PWM API. + */ + pwm_apply_args(beeper->pwm); + INIT_WORK(&beeper->work, pwm_beeper_work); beeper->input = input_allocate_device(); diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index 79338f4bdecb..65ebbd111702 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -664,7 +664,7 @@ struct uinput_ff_upload_compat { static int uinput_ff_upload_to_user(char __user *buffer, const struct uinput_ff_upload *ff_up) { - if (INPUT_COMPAT_TEST) { + if (in_compat_syscall()) { struct uinput_ff_upload_compat ff_up_compat; ff_up_compat.request_id = ff_up->request_id; @@ -695,7 +695,7 @@ static int uinput_ff_upload_to_user(char __user *buffer, static int uinput_ff_upload_from_user(const char __user *buffer, struct uinput_ff_upload *ff_up) { - if (INPUT_COMPAT_TEST) { + if (in_compat_syscall()) { struct uinput_ff_upload_compat ff_up_compat; if (copy_from_user(&ff_up_compat, buffer, diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 1f99e7f30e27..8ecdc38fd489 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -833,6 +833,15 @@ config TOUCHSCREEN_USB_COMPOSITE To compile this driver as a module, choose M here: the module will be called usbtouchscreen. +config TOUCHSCREEN_MX25 + tristate "Freescale i.MX25 touchscreen input driver" + depends on MFD_MX25_TSADC + help + Enable support for touchscreen connected to your i.MX25. + + To compile this driver as a module, choose M here: the + module will be called fsl-imx25-tcq. + config TOUCHSCREEN_MC13783 tristate "Freescale MC13783 touchscreen input driver" depends on MFD_MC13XXX diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index 4b518c76e0d7..f42975e719e0 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -46,6 +46,7 @@ obj-$(CONFIG_TOUCHSCREEN_INTEL_MID) += intel-mid-touch.o obj-$(CONFIG_TOUCHSCREEN_IPROC) += bcm_iproc_tsc.o obj-$(CONFIG_TOUCHSCREEN_LPC32XX) += lpc32xx_ts.o obj-$(CONFIG_TOUCHSCREEN_MAX11801) += max11801_ts.o +obj-$(CONFIG_TOUCHSCREEN_MX25) += fsl-imx25-tcq.o obj-$(CONFIG_TOUCHSCREEN_MC13783) += mc13783_ts.o obj-$(CONFIG_TOUCHSCREEN_MCS5000) += mcs5000_ts.o obj-$(CONFIG_TOUCHSCREEN_MELFAS_MIP4) += melfas_mip4.o diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c index 69d299d5dd00..e4bf1103e6f8 100644 --- a/drivers/input/touchscreen/ad7879.c +++ b/drivers/input/touchscreen/ad7879.c @@ -379,7 +379,7 @@ static const struct attribute_group ad7879_attr_group = { static int ad7879_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) { - struct ad7879 *ts = container_of(chip, struct ad7879, gc); + struct ad7879 *ts = gpiochip_get_data(chip); int err; mutex_lock(&ts->mutex); @@ -393,7 +393,7 @@ static int ad7879_gpio_direction_input(struct gpio_chip *chip, static int ad7879_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, int level) { - struct ad7879 *ts = container_of(chip, struct ad7879, gc); + struct ad7879 *ts = gpiochip_get_data(chip); int err; mutex_lock(&ts->mutex); @@ -412,7 +412,7 @@ static int ad7879_gpio_direction_output(struct gpio_chip *chip, static int ad7879_gpio_get_value(struct gpio_chip *chip, unsigned gpio) { - struct ad7879 *ts = container_of(chip, struct ad7879, gc); + struct ad7879 *ts = gpiochip_get_data(chip); u16 val; mutex_lock(&ts->mutex); @@ -425,7 +425,7 @@ static int ad7879_gpio_get_value(struct gpio_chip *chip, unsigned gpio) static void ad7879_gpio_set_value(struct gpio_chip *chip, unsigned gpio, int value) { - struct ad7879 *ts = container_of(chip, struct ad7879, gc); + struct ad7879 *ts = gpiochip_get_data(chip); mutex_lock(&ts->mutex); if (value) @@ -456,7 +456,7 @@ static int ad7879_gpio_add(struct ad7879 *ts, ts->gc.owner = THIS_MODULE; ts->gc.parent = ts->dev; - ret = gpiochip_add(&ts->gc); + ret = gpiochip_add_data(&ts->gc, ts); if (ret) dev_err(ts->dev, "failed to register gpio %d\n", ts->gc.base); diff --git a/drivers/input/touchscreen/cyttsp4_core.c b/drivers/input/touchscreen/cyttsp4_core.c index 5ed31057430c..44deca88c579 100644 --- a/drivers/input/touchscreen/cyttsp4_core.c +++ b/drivers/input/touchscreen/cyttsp4_core.c @@ -1499,7 +1499,7 @@ static int cyttsp4_core_sleep_(struct cyttsp4 *cd) if (IS_BOOTLOADER(mode[0], mode[1])) { mutex_unlock(&cd->system_lock); - dev_err(cd->dev, "%s: Device in BOOTLADER mode.\n", __func__); + dev_err(cd->dev, "%s: Device in BOOTLOADER mode.\n", __func__); rc = -EINVAL; goto error; } diff --git a/drivers/input/touchscreen/fsl-imx25-tcq.c b/drivers/input/touchscreen/fsl-imx25-tcq.c new file mode 100644 index 000000000000..fe9877a6af9e --- /dev/null +++ b/drivers/input/touchscreen/fsl-imx25-tcq.c @@ -0,0 +1,596 @@ +/* + * Copyright (C) 2014-2015 Pengutronix, Markus Pargmann <mpa@pengutronix.de> + * + * 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. + * + * Based on driver from 2011: + * Juergen Beisert, Pengutronix <kernel@pengutronix.de> + * + * This is the driver for the imx25 TCQ (Touchscreen Conversion Queue) + * connected to the imx25 ADC. + */ + +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/input.h> +#include <linux/interrupt.h> +#include <linux/mfd/imx25-tsadc.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> + +static const char mx25_tcq_name[] = "mx25-tcq"; + +enum mx25_tcq_mode { + MX25_TS_4WIRE, +}; + +struct mx25_tcq_priv { + struct regmap *regs; + struct regmap *core_regs; + struct input_dev *idev; + enum mx25_tcq_mode mode; + unsigned int pen_threshold; + unsigned int sample_count; + unsigned int expected_samples; + unsigned int pen_debounce; + unsigned int settling_time; + struct clk *clk; + int irq; + struct device *dev; +}; + +static struct regmap_config mx25_tcq_regconfig = { + .fast_io = true, + .max_register = 0x5c, + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, +}; + +static const struct of_device_id mx25_tcq_ids[] = { + { .compatible = "fsl,imx25-tcq", }, + { /* Sentinel */ } +}; + +#define TSC_4WIRE_PRE_INDEX 0 +#define TSC_4WIRE_X_INDEX 1 +#define TSC_4WIRE_Y_INDEX 2 +#define TSC_4WIRE_POST_INDEX 3 +#define TSC_4WIRE_LEAVE 4 + +#define MX25_TSC_DEF_THRESHOLD 80 +#define TSC_MAX_SAMPLES 16 + +#define MX25_TSC_REPEAT_WAIT 14 + +enum mx25_adc_configurations { + MX25_CFG_PRECHARGE = 0, + MX25_CFG_TOUCH_DETECT, + MX25_CFG_X_MEASUREMENT, + MX25_CFG_Y_MEASUREMENT, +}; + +#define MX25_PRECHARGE_VALUE (\ + MX25_ADCQ_CFG_YPLL_OFF | \ + MX25_ADCQ_CFG_XNUR_OFF | \ + MX25_ADCQ_CFG_XPUL_HIGH | \ + MX25_ADCQ_CFG_REFP_INT | \ + MX25_ADCQ_CFG_IN_XP | \ + MX25_ADCQ_CFG_REFN_NGND2 | \ + MX25_ADCQ_CFG_IGS) + +#define MX25_TOUCH_DETECT_VALUE (\ + MX25_ADCQ_CFG_YNLR | \ + MX25_ADCQ_CFG_YPLL_OFF | \ + MX25_ADCQ_CFG_XNUR_OFF | \ + MX25_ADCQ_CFG_XPUL_OFF | \ + MX25_ADCQ_CFG_REFP_INT | \ + MX25_ADCQ_CFG_IN_XP | \ + MX25_ADCQ_CFG_REFN_NGND2 | \ + MX25_ADCQ_CFG_PENIACK) + +static void imx25_setup_queue_cfgs(struct mx25_tcq_priv *priv, + unsigned int settling_cnt) +{ + u32 precharge_cfg = + MX25_PRECHARGE_VALUE | + MX25_ADCQ_CFG_SETTLING_TIME(settling_cnt); + u32 touch_detect_cfg = + MX25_TOUCH_DETECT_VALUE | + MX25_ADCQ_CFG_NOS(1) | + MX25_ADCQ_CFG_SETTLING_TIME(settling_cnt); + + regmap_write(priv->core_regs, MX25_TSC_TICR, precharge_cfg); + + /* PRECHARGE */ + regmap_write(priv->regs, MX25_ADCQ_CFG(MX25_CFG_PRECHARGE), + precharge_cfg); + + /* TOUCH_DETECT */ + regmap_write(priv->regs, MX25_ADCQ_CFG(MX25_CFG_TOUCH_DETECT), + touch_detect_cfg); + + /* X Measurement */ + regmap_write(priv->regs, MX25_ADCQ_CFG(MX25_CFG_X_MEASUREMENT), + MX25_ADCQ_CFG_YPLL_OFF | + MX25_ADCQ_CFG_XNUR_LOW | + MX25_ADCQ_CFG_XPUL_HIGH | + MX25_ADCQ_CFG_REFP_XP | + MX25_ADCQ_CFG_IN_YP | + MX25_ADCQ_CFG_REFN_XN | + MX25_ADCQ_CFG_NOS(priv->sample_count) | + MX25_ADCQ_CFG_SETTLING_TIME(settling_cnt)); + + /* Y Measurement */ + regmap_write(priv->regs, MX25_ADCQ_CFG(MX25_CFG_Y_MEASUREMENT), + MX25_ADCQ_CFG_YNLR | + MX25_ADCQ_CFG_YPLL_HIGH | + MX25_ADCQ_CFG_XNUR_OFF | + MX25_ADCQ_CFG_XPUL_OFF | + MX25_ADCQ_CFG_REFP_YP | + MX25_ADCQ_CFG_IN_XP | + MX25_ADCQ_CFG_REFN_YN | + MX25_ADCQ_CFG_NOS(priv->sample_count) | + MX25_ADCQ_CFG_SETTLING_TIME(settling_cnt)); + + /* Enable the touch detection right now */ + regmap_write(priv->core_regs, MX25_TSC_TICR, touch_detect_cfg | + MX25_ADCQ_CFG_IGS); +} + +static int imx25_setup_queue_4wire(struct mx25_tcq_priv *priv, + unsigned settling_cnt, int *items) +{ + imx25_setup_queue_cfgs(priv, settling_cnt); + + /* Setup the conversion queue */ + regmap_write(priv->regs, MX25_ADCQ_ITEM_7_0, + MX25_ADCQ_ITEM(0, MX25_CFG_PRECHARGE) | + MX25_ADCQ_ITEM(1, MX25_CFG_TOUCH_DETECT) | + MX25_ADCQ_ITEM(2, MX25_CFG_X_MEASUREMENT) | + MX25_ADCQ_ITEM(3, MX25_CFG_Y_MEASUREMENT) | + MX25_ADCQ_ITEM(4, MX25_CFG_PRECHARGE) | + MX25_ADCQ_ITEM(5, MX25_CFG_TOUCH_DETECT)); + + /* + * We measure X/Y with 'sample_count' number of samples and execute a + * touch detection twice, with 1 sample each + */ + priv->expected_samples = priv->sample_count * 2 + 2; + *items = 6; + + return 0; +} + +static void mx25_tcq_disable_touch_irq(struct mx25_tcq_priv *priv) +{ + regmap_update_bits(priv->regs, MX25_ADCQ_CR, MX25_ADCQ_CR_PDMSK, + MX25_ADCQ_CR_PDMSK); +} + +static void mx25_tcq_enable_touch_irq(struct mx25_tcq_priv *priv) +{ + regmap_update_bits(priv->regs, MX25_ADCQ_CR, MX25_ADCQ_CR_PDMSK, 0); +} + +static void mx25_tcq_disable_fifo_irq(struct mx25_tcq_priv *priv) +{ + regmap_update_bits(priv->regs, MX25_ADCQ_MR, MX25_ADCQ_MR_FDRY_IRQ, + MX25_ADCQ_MR_FDRY_IRQ); +} + +static void mx25_tcq_enable_fifo_irq(struct mx25_tcq_priv *priv) +{ + regmap_update_bits(priv->regs, MX25_ADCQ_MR, MX25_ADCQ_MR_FDRY_IRQ, 0); +} + +static void mx25_tcq_force_queue_start(struct mx25_tcq_priv *priv) +{ + regmap_update_bits(priv->regs, MX25_ADCQ_CR, + MX25_ADCQ_CR_FQS, + MX25_ADCQ_CR_FQS); +} + +static void mx25_tcq_force_queue_stop(struct mx25_tcq_priv *priv) +{ + regmap_update_bits(priv->regs, MX25_ADCQ_CR, + MX25_ADCQ_CR_FQS, 0); +} + +static void mx25_tcq_fifo_reset(struct mx25_tcq_priv *priv) +{ + u32 tcqcr; + + regmap_read(priv->regs, MX25_ADCQ_CR, &tcqcr); + regmap_update_bits(priv->regs, MX25_ADCQ_CR, MX25_ADCQ_CR_FRST, + MX25_ADCQ_CR_FRST); + regmap_update_bits(priv->regs, MX25_ADCQ_CR, MX25_ADCQ_CR_FRST, 0); + regmap_write(priv->regs, MX25_ADCQ_CR, tcqcr); +} + +static void mx25_tcq_re_enable_touch_detection(struct mx25_tcq_priv *priv) +{ + /* stop the queue from looping */ + mx25_tcq_force_queue_stop(priv); + + /* for a clean touch detection, preload the X plane */ + regmap_write(priv->core_regs, MX25_TSC_TICR, MX25_PRECHARGE_VALUE); + + /* waste some time now to pre-load the X plate to high voltage */ + mx25_tcq_fifo_reset(priv); + + /* re-enable the detection right now */ + regmap_write(priv->core_regs, MX25_TSC_TICR, + MX25_TOUCH_DETECT_VALUE | MX25_ADCQ_CFG_IGS); + + regmap_update_bits(priv->regs, MX25_ADCQ_SR, MX25_ADCQ_SR_PD, + MX25_ADCQ_SR_PD); + + /* enable the pen down event to be a source for the interrupt */ + regmap_update_bits(priv->regs, MX25_ADCQ_MR, MX25_ADCQ_MR_PD_IRQ, 0); + + /* lets fire the next IRQ if someone touches the touchscreen */ + mx25_tcq_enable_touch_irq(priv); +} + +static void mx25_tcq_create_event_for_4wire(struct mx25_tcq_priv *priv, + u32 *sample_buf, + unsigned int samples) +{ + unsigned int x_pos = 0; + unsigned int y_pos = 0; + unsigned int touch_pre = 0; + unsigned int touch_post = 0; + unsigned int i; + + for (i = 0; i < samples; i++) { + unsigned int index = MX25_ADCQ_FIFO_ID(sample_buf[i]); + unsigned int val = MX25_ADCQ_FIFO_DATA(sample_buf[i]); + + switch (index) { + case 1: + touch_pre = val; + break; + case 2: + x_pos = val; + break; + case 3: + y_pos = val; + break; + case 5: + touch_post = val; + break; + default: + dev_dbg(priv->dev, "Dropped samples because of invalid index %d\n", + index); + return; + } + } + + if (samples != 0) { + /* + * only if both touch measures are below a threshold, + * the position is valid + */ + if (touch_pre < priv->pen_threshold && + touch_post < priv->pen_threshold) { + /* valid samples, generate a report */ + x_pos /= priv->sample_count; + y_pos /= priv->sample_count; + input_report_abs(priv->idev, ABS_X, x_pos); + input_report_abs(priv->idev, ABS_Y, y_pos); + input_report_key(priv->idev, BTN_TOUCH, 1); + input_sync(priv->idev); + + /* get next sample */ + mx25_tcq_enable_fifo_irq(priv); + } else if (touch_pre >= priv->pen_threshold && + touch_post >= priv->pen_threshold) { + /* + * if both samples are invalid, + * generate a release report + */ + input_report_key(priv->idev, BTN_TOUCH, 0); + input_sync(priv->idev); + mx25_tcq_re_enable_touch_detection(priv); + } else { + /* + * if only one of both touch measurements are + * below the threshold, still some bouncing + * happens. Take additional samples in this + * case to be sure + */ + mx25_tcq_enable_fifo_irq(priv); + } + } +} + +static irqreturn_t mx25_tcq_irq_thread(int irq, void *dev_id) +{ + struct mx25_tcq_priv *priv = dev_id; + u32 sample_buf[TSC_MAX_SAMPLES]; + unsigned int samples; + u32 stats; + unsigned int i; + + /* + * Check how many samples are available. We always have to read exactly + * sample_count samples from the fifo, or a multiple of sample_count. + * Otherwise we mixup samples into different touch events. + */ + regmap_read(priv->regs, MX25_ADCQ_SR, &stats); + samples = MX25_ADCQ_SR_FDN(stats); + samples -= samples % priv->sample_count; + + if (!samples) + return IRQ_HANDLED; + + for (i = 0; i != samples; ++i) + regmap_read(priv->regs, MX25_ADCQ_FIFO, &sample_buf[i]); + + mx25_tcq_create_event_for_4wire(priv, sample_buf, samples); + + return IRQ_HANDLED; +} + +static irqreturn_t mx25_tcq_irq(int irq, void *dev_id) +{ + struct mx25_tcq_priv *priv = dev_id; + u32 stat; + int ret = IRQ_HANDLED; + + regmap_read(priv->regs, MX25_ADCQ_SR, &stat); + + if (stat & (MX25_ADCQ_SR_FRR | MX25_ADCQ_SR_FUR | MX25_ADCQ_SR_FOR)) + mx25_tcq_re_enable_touch_detection(priv); + + if (stat & MX25_ADCQ_SR_PD) { + mx25_tcq_disable_touch_irq(priv); + mx25_tcq_force_queue_start(priv); + mx25_tcq_enable_fifo_irq(priv); + } + + if (stat & MX25_ADCQ_SR_FDRY) { + mx25_tcq_disable_fifo_irq(priv); + ret = IRQ_WAKE_THREAD; + } + + regmap_update_bits(priv->regs, MX25_ADCQ_SR, MX25_ADCQ_SR_FRR | + MX25_ADCQ_SR_FUR | MX25_ADCQ_SR_FOR | + MX25_ADCQ_SR_PD, + MX25_ADCQ_SR_FRR | MX25_ADCQ_SR_FUR | + MX25_ADCQ_SR_FOR | MX25_ADCQ_SR_PD); + + return ret; +} + +/* configure the state machine for a 4-wire touchscreen */ +static int mx25_tcq_init(struct mx25_tcq_priv *priv) +{ + u32 tgcr; + unsigned int ipg_div; + unsigned int adc_period; + unsigned int debounce_cnt; + unsigned int settling_cnt; + int itemct; + int error; + + regmap_read(priv->core_regs, MX25_TSC_TGCR, &tgcr); + ipg_div = max_t(unsigned int, 4, MX25_TGCR_GET_ADCCLK(tgcr)); + adc_period = USEC_PER_SEC * ipg_div * 2 + 2; + adc_period /= clk_get_rate(priv->clk) / 1000 + 1; + debounce_cnt = DIV_ROUND_UP(priv->pen_debounce, adc_period * 8) - 1; + settling_cnt = DIV_ROUND_UP(priv->settling_time, adc_period * 8) - 1; + + /* Reset */ + regmap_write(priv->regs, MX25_ADCQ_CR, + MX25_ADCQ_CR_QRST | MX25_ADCQ_CR_FRST); + regmap_update_bits(priv->regs, MX25_ADCQ_CR, + MX25_ADCQ_CR_QRST | MX25_ADCQ_CR_FRST, 0); + + /* up to 128 * 8 ADC clocks are possible */ + if (debounce_cnt > 127) + debounce_cnt = 127; + + /* up to 255 * 8 ADC clocks are possible */ + if (settling_cnt > 255) + settling_cnt = 255; + + error = imx25_setup_queue_4wire(priv, settling_cnt, &itemct); + if (error) + return error; + + regmap_update_bits(priv->regs, MX25_ADCQ_CR, + MX25_ADCQ_CR_LITEMID_MASK | MX25_ADCQ_CR_WMRK_MASK, + MX25_ADCQ_CR_LITEMID(itemct - 1) | + MX25_ADCQ_CR_WMRK(priv->expected_samples - 1)); + + /* setup debounce count */ + regmap_update_bits(priv->core_regs, MX25_TSC_TGCR, + MX25_TGCR_PDBTIME_MASK, + MX25_TGCR_PDBTIME(debounce_cnt)); + + /* enable debounce */ + regmap_update_bits(priv->core_regs, MX25_TSC_TGCR, MX25_TGCR_PDBEN, + MX25_TGCR_PDBEN); + regmap_update_bits(priv->core_regs, MX25_TSC_TGCR, MX25_TGCR_PDEN, + MX25_TGCR_PDEN); + + /* enable the engine on demand */ + regmap_update_bits(priv->regs, MX25_ADCQ_CR, MX25_ADCQ_CR_QSM_MASK, + MX25_ADCQ_CR_QSM_FQS); + + /* Enable repeat and repeat wait */ + regmap_update_bits(priv->regs, MX25_ADCQ_CR, + MX25_ADCQ_CR_RPT | MX25_ADCQ_CR_RWAIT_MASK, + MX25_ADCQ_CR_RPT | + MX25_ADCQ_CR_RWAIT(MX25_TSC_REPEAT_WAIT)); + + return 0; +} + +static int mx25_tcq_parse_dt(struct platform_device *pdev, + struct mx25_tcq_priv *priv) +{ + struct device_node *np = pdev->dev.of_node; + u32 wires; + int error; + + /* Setup defaults */ + priv->pen_threshold = 500; + priv->sample_count = 3; + priv->pen_debounce = 1000000; + priv->settling_time = 250000; + + error = of_property_read_u32(np, "fsl,wires", &wires); + if (error) { + dev_err(&pdev->dev, "Failed to find fsl,wires properties\n"); + return error; + } + + if (wires == 4) { + priv->mode = MX25_TS_4WIRE; + } else { + dev_err(&pdev->dev, "%u-wire mode not supported\n", wires); + return -EINVAL; + } + + /* These are optional, we don't care about the return values */ + of_property_read_u32(np, "fsl,pen-threshold", &priv->pen_threshold); + of_property_read_u32(np, "fsl,settling-time-ns", &priv->settling_time); + of_property_read_u32(np, "fsl,pen-debounce-ns", &priv->pen_debounce); + + return 0; +} + +static int mx25_tcq_open(struct input_dev *idev) +{ + struct device *dev = &idev->dev; + struct mx25_tcq_priv *priv = dev_get_drvdata(dev); + int error; + + error = clk_prepare_enable(priv->clk); + if (error) { + dev_err(dev, "Failed to enable ipg clock\n"); + return error; + } + + error = mx25_tcq_init(priv); + if (error) { + dev_err(dev, "Failed to init tcq\n"); + clk_disable_unprepare(priv->clk); + return error; + } + + mx25_tcq_re_enable_touch_detection(priv); + + return 0; +} + +static void mx25_tcq_close(struct input_dev *idev) +{ + struct mx25_tcq_priv *priv = input_get_drvdata(idev); + + mx25_tcq_force_queue_stop(priv); + mx25_tcq_disable_touch_irq(priv); + mx25_tcq_disable_fifo_irq(priv); + clk_disable_unprepare(priv->clk); +} + +static int mx25_tcq_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct input_dev *idev; + struct mx25_tcq_priv *priv; + struct mx25_tsadc *tsadc = dev_get_drvdata(pdev->dev.parent); + struct resource *res; + void __iomem *mem; + int error; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + priv->dev = dev; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + mem = devm_ioremap_resource(dev, res); + if (IS_ERR(mem)) + return PTR_ERR(mem); + + error = mx25_tcq_parse_dt(pdev, priv); + if (error) + return error; + + priv->regs = devm_regmap_init_mmio(dev, mem, &mx25_tcq_regconfig); + if (IS_ERR(priv->regs)) { + dev_err(dev, "Failed to initialize regmap\n"); + return PTR_ERR(priv->regs); + } + + priv->irq = platform_get_irq(pdev, 0); + if (priv->irq <= 0) { + dev_err(dev, "Failed to get IRQ\n"); + return priv->irq; + } + + idev = devm_input_allocate_device(dev); + if (!idev) { + dev_err(dev, "Failed to allocate input device\n"); + return -ENOMEM; + } + + idev->name = mx25_tcq_name; + input_set_capability(idev, EV_KEY, BTN_TOUCH); + input_set_abs_params(idev, ABS_X, 0, 0xfff, 0, 0); + input_set_abs_params(idev, ABS_Y, 0, 0xfff, 0, 0); + + idev->id.bustype = BUS_HOST; + idev->open = mx25_tcq_open; + idev->close = mx25_tcq_close; + + priv->idev = idev; + input_set_drvdata(idev, priv); + + priv->core_regs = tsadc->regs; + if (!priv->core_regs) + return -EINVAL; + + priv->clk = tsadc->clk; + if (!priv->clk) + return -EINVAL; + + platform_set_drvdata(pdev, priv); + + error = devm_request_threaded_irq(dev, priv->irq, mx25_tcq_irq, + mx25_tcq_irq_thread, 0, pdev->name, + priv); + if (error) { + dev_err(dev, "Failed requesting IRQ\n"); + return error; + } + + error = input_register_device(idev); + if (error) { + dev_err(dev, "Failed to register input device\n"); + return error; + } + + return 0; +} + +static struct platform_driver mx25_tcq_driver = { + .driver = { + .name = "mx25-tcq", + .of_match_table = mx25_tcq_ids, + }, + .probe = mx25_tcq_probe, +}; +module_platform_driver(mx25_tcq_driver); + +MODULE_DESCRIPTION("TS input driver for Freescale mx25"); +MODULE_AUTHOR("Markus Pargmann <mpa@pengutronix.de>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/input/touchscreen/sun4i-ts.c b/drivers/input/touchscreen/sun4i-ts.c index 485794376ee5..d07dd29d4848 100644 --- a/drivers/input/touchscreen/sun4i-ts.c +++ b/drivers/input/touchscreen/sun4i-ts.c @@ -115,7 +115,6 @@ struct sun4i_ts_data { struct device *dev; struct input_dev *input; - struct thermal_zone_device *tz; void __iomem *base; unsigned int irq; bool ignore_fifo_data; @@ -366,10 +365,7 @@ static int sun4i_ts_probe(struct platform_device *pdev) if (IS_ERR(hwmon)) return PTR_ERR(hwmon); - ts->tz = thermal_zone_of_sensor_register(ts->dev, 0, ts, - &sun4i_ts_tz_ops); - if (IS_ERR(ts->tz)) - ts->tz = NULL; + devm_thermal_zone_of_sensor_register(ts->dev, 0, ts, &sun4i_ts_tz_ops); writel(TEMP_IRQ_EN(1), ts->base + TP_INT_FIFOC); @@ -377,7 +373,6 @@ static int sun4i_ts_probe(struct platform_device *pdev) error = input_register_device(ts->input); if (error) { writel(0, ts->base + TP_INT_FIFOC); - thermal_zone_of_sensor_unregister(ts->dev, ts->tz); return error; } } @@ -394,8 +389,6 @@ static int sun4i_ts_remove(struct platform_device *pdev) if (ts->input) input_unregister_device(ts->input); - thermal_zone_of_sensor_unregister(ts->dev, ts->tz); - /* Deactivate all IRQs */ writel(0, ts->base + TP_INT_FIFOC); diff --git a/drivers/input/touchscreen/wdt87xx_i2c.c b/drivers/input/touchscreen/wdt87xx_i2c.c index 515c20a6e10f..73861ad22df4 100644 --- a/drivers/input/touchscreen/wdt87xx_i2c.c +++ b/drivers/input/touchscreen/wdt87xx_i2c.c @@ -848,7 +848,7 @@ static int wdt87xx_do_update_firmware(struct i2c_client *client, error = wdt87xx_get_sysparam(client, &wdt->param); if (error) dev_err(&client->dev, - "failed to refresh system paramaters: %d\n", error); + "failed to refresh system parameters: %d\n", error); out: enable_irq(client->irq); mutex_unlock(&wdt->fw_mutex); |