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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2017-11-13 17:10:13 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2017-11-13 17:10:13 -0800
commitc25141062a82ae8bddced1b3ce2b57a1c0efabe0 (patch)
tree105edf10059bc0c4f2f00338b0c861b813d1bb1a /drivers/input/touchscreen
parent26dd633e437dca218547ccbeacc71fe8a620b6f6 (diff)
parentc1b433e04ef9c0a1c4d65bfe918472ffa334dff4 (diff)
Merge branch 'next' into for-linus
Prepare input updates for 4.15 merge window.
Diffstat (limited to 'drivers/input/touchscreen')
-rw-r--r--drivers/input/touchscreen/Kconfig34
-rw-r--r--drivers/input/touchscreen/Makefile4
-rw-r--r--drivers/input/touchscreen/ad7877.c6
-rw-r--r--drivers/input/touchscreen/ad7879.c19
-rw-r--r--drivers/input/touchscreen/atmel-wm97xx.c10
-rw-r--r--drivers/input/touchscreen/cyttsp4_core.c59
-rw-r--r--drivers/input/touchscreen/edt-ft5x06.c173
-rw-r--r--drivers/input/touchscreen/elants_i2c.c19
-rw-r--r--drivers/input/touchscreen/exc3000.c223
-rw-r--r--drivers/input/touchscreen/goodix.c125
-rw-r--r--drivers/input/touchscreen/hideep.c1120
-rw-r--r--drivers/input/touchscreen/htcpen.c2
-rw-r--r--drivers/input/touchscreen/melfas_mip4.c17
-rw-r--r--drivers/input/touchscreen/mxs-lradc-ts.c2
-rw-r--r--drivers/input/touchscreen/raydium_i2c_ts.c18
-rw-r--r--drivers/input/touchscreen/rohm_bu21023.c17
-rw-r--r--drivers/input/touchscreen/s6sy761.c559
-rw-r--r--drivers/input/touchscreen/st1232.c16
-rw-r--r--drivers/input/touchscreen/stmfts.c4
-rw-r--r--drivers/input/touchscreen/tsc200x-core.c6
-rw-r--r--drivers/input/touchscreen/tsc200x-core.h1
-rw-r--r--drivers/input/touchscreen/w90p910_ts.c7
-rw-r--r--drivers/input/touchscreen/wdt87xx_i2c.c10
23 files changed, 2241 insertions, 210 deletions
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 64b30fe273fd..0cfdb7cb610e 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -316,6 +316,16 @@ config TOUCHSCREEN_EGALAX_SERIAL
To compile this driver as a module, choose M here: the
module will be called egalax_ts_serial.
+config TOUCHSCREEN_EXC3000
+ tristate "EETI EXC3000 multi-touch panel support"
+ depends on I2C
+ help
+ Say Y here to enable support for I2C connected EETI
+ EXC3000 multi-touch panels.
+
+ To compile this driver as a module, choose M here: the
+ module will be called exc3000.
+
config TOUCHSCREEN_FUJITSU
tristate "Fujitsu serial touchscreen"
select SERIO
@@ -344,6 +354,17 @@ config TOUCHSCREEN_GOODIX
To compile this driver as a module, choose M here: the
module will be called goodix.
+config TOUCHSCREEN_HIDEEP
+ tristate "HiDeep Touch IC"
+ depends on I2C
+ help
+ Say Y here if you have a touchscreen using HiDeep.
+
+ If unsure, say N.
+
+ To compile this driver as a moudle, choose M here : the
+ module will be called hideep_ts.
+
config TOUCHSCREEN_ILI210X
tristate "Ilitek ILI210X based touchscreen"
depends on I2C
@@ -383,6 +404,17 @@ config TOUCHSCREEN_S3C2410
To compile this driver as a module, choose M here: the
module will be called s3c2410_ts.
+config TOUCHSCREEN_S6SY761
+ tristate "Samsung S6SY761 Touchscreen driver"
+ depends on I2C
+ help
+ Say Y if you have the Samsung S6SY761 driver
+
+ If unsure, say N
+
+ To compile this driver as module, choose M here: the
+ module will be called s6sy761.
+
config TOUCHSCREEN_GUNZE
tristate "Gunze AHL-51S touchscreen"
select SERIO
@@ -949,7 +981,7 @@ config TOUCHSCREEN_USB_NEXIO
config TOUCHSCREEN_USB_EASYTOUCH
default y
- bool "EasyTouch USB Touch controller device support" if EMBEDDED
+ bool "EasyTouch USB Touch controller device support" if EXPERT
depends on TOUCHSCREEN_USB_COMPOSITE
help
Say Y here if you have an EasyTouch USB Touch controller.
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 6badce87037b..d2a2b3b7af27 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
#
# Makefile for the touchscreen drivers.
#
@@ -37,8 +38,10 @@ obj-$(CONFIG_TOUCHSCREEN_ELAN) += elants_i2c.o
obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
obj-$(CONFIG_TOUCHSCREEN_EGALAX) += egalax_ts.o
obj-$(CONFIG_TOUCHSCREEN_EGALAX_SERIAL) += egalax_ts_serial.o
+obj-$(CONFIG_TOUCHSCREEN_EXC3000) += exc3000.o
obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o
obj-$(CONFIG_TOUCHSCREEN_GOODIX) += goodix.o
+obj-$(CONFIG_TOUCHSCREEN_HIDEEP) += hideep.o
obj-$(CONFIG_TOUCHSCREEN_ILI210X) += ili210x.o
obj-$(CONFIG_TOUCHSCREEN_IMX6UL_TSC) += imx6ul_tsc.o
obj-$(CONFIG_TOUCHSCREEN_INEXIO) += inexio.o
@@ -64,6 +67,7 @@ obj-$(CONFIG_TOUCHSCREEN_PENMOUNT) += penmount.o
obj-$(CONFIG_TOUCHSCREEN_PIXCIR) += pixcir_i2c_ts.o
obj-$(CONFIG_TOUCHSCREEN_RM_TS) += raydium_i2c_ts.o
obj-$(CONFIG_TOUCHSCREEN_S3C2410) += s3c2410_ts.o
+obj-$(CONFIG_TOUCHSCREEN_S6SY761) += s6sy761.o
obj-$(CONFIG_TOUCHSCREEN_SILEAD) += silead.o
obj-$(CONFIG_TOUCHSCREEN_SIS_I2C) += sis_i2c.o
obj-$(CONFIG_TOUCHSCREEN_ST1232) += st1232.o
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
index 9c250ae780d9..0381c7809d1b 100644
--- a/drivers/input/touchscreen/ad7877.c
+++ b/drivers/input/touchscreen/ad7877.c
@@ -385,9 +385,9 @@ static inline void ad7877_ts_event_release(struct ad7877 *ts)
input_sync(input_dev);
}
-static void ad7877_timer(unsigned long handle)
+static void ad7877_timer(struct timer_list *t)
{
- struct ad7877 *ts = (void *)handle;
+ struct ad7877 *ts = from_timer(ts, t, timer);
unsigned long flags;
spin_lock_irqsave(&ts->lock, flags);
@@ -718,7 +718,7 @@ static int ad7877_probe(struct spi_device *spi)
ts->spi = spi;
ts->input = input_dev;
- setup_timer(&ts->timer, ad7877_timer, (unsigned long) ts);
+ timer_setup(&ts->timer, ad7877_timer, 0);
mutex_init(&ts->mutex);
spin_lock_init(&ts->lock);
diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c
index 196028c45210..6bad23ee47a1 100644
--- a/drivers/input/touchscreen/ad7879.c
+++ b/drivers/input/touchscreen/ad7879.c
@@ -237,9 +237,9 @@ static void ad7879_ts_event_release(struct ad7879 *ts)
input_sync(input_dev);
}
-static void ad7879_timer(unsigned long handle)
+static void ad7879_timer(struct timer_list *t)
{
- struct ad7879 *ts = (void *)handle;
+ struct ad7879 *ts = from_timer(ts, t, timer);
ad7879_ts_event_release(ts);
}
@@ -524,13 +524,6 @@ static int ad7879_parse_dt(struct device *dev, struct ad7879 *ts)
return 0;
}
-static void ad7879_cleanup_sysfs(void *_ts)
-{
- struct ad7879 *ts = _ts;
-
- sysfs_remove_group(&ts->dev->kobj, &ad7879_attr_group);
-}
-
int ad7879_probe(struct device *dev, struct regmap *regmap,
int irq, u16 bustype, u8 devid)
{
@@ -577,7 +570,7 @@ int ad7879_probe(struct device *dev, struct regmap *regmap,
ts->irq = irq;
ts->regmap = regmap;
- setup_timer(&ts->timer, ad7879_timer, (unsigned long) ts);
+ timer_setup(&ts->timer, ad7879_timer, 0);
snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(dev));
input_dev->name = "AD7879 Touchscreen";
@@ -658,11 +651,7 @@ int ad7879_probe(struct device *dev, struct regmap *regmap,
__ad7879_disable(ts);
- err = sysfs_create_group(&dev->kobj, &ad7879_attr_group);
- if (err)
- return err;
-
- err = devm_add_action_or_reset(dev, ad7879_cleanup_sysfs, ts);
+ err = devm_device_add_group(dev, &ad7879_attr_group);
if (err)
return err;
diff --git a/drivers/input/touchscreen/atmel-wm97xx.c b/drivers/input/touchscreen/atmel-wm97xx.c
index 8cf0b2be2df4..9140a43cfe20 100644
--- a/drivers/input/touchscreen/atmel-wm97xx.c
+++ b/drivers/input/touchscreen/atmel-wm97xx.c
@@ -208,9 +208,12 @@ static void atmel_wm97xx_acc_pen_up(struct wm97xx *wm)
}
}
-static void atmel_wm97xx_pen_timer(unsigned long data)
+static void atmel_wm97xx_pen_timer(struct timer_list *t)
{
- atmel_wm97xx_acc_pen_up((struct wm97xx *)data);
+ struct atmel_wm97xx *atmel_wm97xx = from_timer(atmel_wm97xx, t,
+ pen_timer);
+
+ atmel_wm97xx_acc_pen_up(atmel_wm97xx->wm);
}
static int atmel_wm97xx_acc_startup(struct wm97xx *wm)
@@ -348,8 +351,7 @@ static int __init atmel_wm97xx_probe(struct platform_device *pdev)
atmel_wm97xx->gpio_pen = atmel_gpio_line;
atmel_wm97xx->gpio_irq = gpio_to_irq(atmel_wm97xx->gpio_pen);
- setup_timer(&atmel_wm97xx->pen_timer, atmel_wm97xx_pen_timer,
- (unsigned long)wm);
+ timer_setup(&atmel_wm97xx->pen_timer, atmel_wm97xx_pen_timer, 0);
ret = request_irq(atmel_wm97xx->ac97c_irq,
atmel_wm97xx_channel_b_interrupt,
diff --git a/drivers/input/touchscreen/cyttsp4_core.c b/drivers/input/touchscreen/cyttsp4_core.c
index beaf61ce775b..727c3232517c 100644
--- a/drivers/input/touchscreen/cyttsp4_core.c
+++ b/drivers/input/touchscreen/cyttsp4_core.c
@@ -201,13 +201,21 @@ static int cyttsp4_si_get_cydata(struct cyttsp4 *cd)
void *p;
int rc;
+ if (si->si_ofs.test_ofs <= si->si_ofs.cydata_ofs) {
+ dev_err(cd->dev,
+ "%s: invalid offset test_ofs: %zu, cydata_ofs: %zu\n",
+ __func__, si->si_ofs.test_ofs, si->si_ofs.cydata_ofs);
+ return -EINVAL;
+ }
+
si->si_ofs.cydata_size = si->si_ofs.test_ofs - si->si_ofs.cydata_ofs;
dev_dbg(cd->dev, "%s: cydata size: %zd\n", __func__,
si->si_ofs.cydata_size);
p = krealloc(si->si_ptrs.cydata, si->si_ofs.cydata_size, GFP_KERNEL);
if (p == NULL) {
- dev_err(cd->dev, "%s: fail alloc cydata memory\n", __func__);
+ dev_err(cd->dev, "%s: failed to allocate cydata memory\n",
+ __func__);
return -ENOMEM;
}
si->si_ptrs.cydata = p;
@@ -270,11 +278,19 @@ static int cyttsp4_si_get_test_data(struct cyttsp4 *cd)
void *p;
int rc;
+ if (si->si_ofs.pcfg_ofs <= si->si_ofs.test_ofs) {
+ dev_err(cd->dev,
+ "%s: invalid offset pcfg_ofs: %zu, test_ofs: %zu\n",
+ __func__, si->si_ofs.pcfg_ofs, si->si_ofs.test_ofs);
+ return -EINVAL;
+ }
+
si->si_ofs.test_size = si->si_ofs.pcfg_ofs - si->si_ofs.test_ofs;
p = krealloc(si->si_ptrs.test, si->si_ofs.test_size, GFP_KERNEL);
if (p == NULL) {
- dev_err(cd->dev, "%s: fail alloc test memory\n", __func__);
+ dev_err(cd->dev, "%s: failed to allocate test memory\n",
+ __func__);
return -ENOMEM;
}
si->si_ptrs.test = p;
@@ -321,14 +337,20 @@ static int cyttsp4_si_get_pcfg_data(struct cyttsp4 *cd)
void *p;
int rc;
+ if (si->si_ofs.opcfg_ofs <= si->si_ofs.pcfg_ofs) {
+ dev_err(cd->dev,
+ "%s: invalid offset opcfg_ofs: %zu, pcfg_ofs: %zu\n",
+ __func__, si->si_ofs.opcfg_ofs, si->si_ofs.pcfg_ofs);
+ return -EINVAL;
+ }
+
si->si_ofs.pcfg_size = si->si_ofs.opcfg_ofs - si->si_ofs.pcfg_ofs;
p = krealloc(si->si_ptrs.pcfg, si->si_ofs.pcfg_size, GFP_KERNEL);
if (p == NULL) {
- rc = -ENOMEM;
- dev_err(cd->dev, "%s: fail alloc pcfg memory r=%d\n",
- __func__, rc);
- return rc;
+ dev_err(cd->dev, "%s: failed to allocate pcfg memory\n",
+ __func__);
+ return -ENOMEM;
}
si->si_ptrs.pcfg = p;
@@ -367,13 +389,20 @@ static int cyttsp4_si_get_opcfg_data(struct cyttsp4 *cd)
void *p;
int rc;
+ if (si->si_ofs.ddata_ofs <= si->si_ofs.opcfg_ofs) {
+ dev_err(cd->dev,
+ "%s: invalid offset ddata_ofs: %zu, opcfg_ofs: %zu\n",
+ __func__, si->si_ofs.ddata_ofs, si->si_ofs.opcfg_ofs);
+ return -EINVAL;
+ }
+
si->si_ofs.opcfg_size = si->si_ofs.ddata_ofs - si->si_ofs.opcfg_ofs;
p = krealloc(si->si_ptrs.opcfg, si->si_ofs.opcfg_size, GFP_KERNEL);
if (p == NULL) {
- dev_err(cd->dev, "%s: fail alloc opcfg memory\n", __func__);
- rc = -ENOMEM;
- goto cyttsp4_si_get_opcfg_data_exit;
+ dev_err(cd->dev, "%s: failed to allocate opcfg memory\n",
+ __func__);
+ return -ENOMEM;
}
si->si_ptrs.opcfg = p;
@@ -382,7 +411,7 @@ static int cyttsp4_si_get_opcfg_data(struct cyttsp4 *cd)
if (rc < 0) {
dev_err(cd->dev, "%s: fail read opcfg data r=%d\n",
__func__, rc);
- goto cyttsp4_si_get_opcfg_data_exit;
+ return rc;
}
si->si_ofs.cmd_ofs = si->si_ptrs.opcfg->cmd_ofs;
si->si_ofs.rep_ofs = si->si_ptrs.opcfg->rep_ofs;
@@ -447,8 +476,7 @@ static int cyttsp4_si_get_opcfg_data(struct cyttsp4 *cd)
cyttsp4_pr_buf(cd->dev, cd->pr_buf, (u8 *)si->si_ptrs.opcfg,
si->si_ofs.opcfg_size, "sysinfo_opcfg_data");
-cyttsp4_si_get_opcfg_data_exit:
- return rc;
+ return 0;
}
static int cyttsp4_si_get_ddata(struct cyttsp4 *cd)
@@ -1237,9 +1265,9 @@ static void cyttsp4_stop_wd_timer(struct cyttsp4 *cd)
del_timer_sync(&cd->watchdog_timer);
}
-static void cyttsp4_watchdog_timer(unsigned long handle)
+static void cyttsp4_watchdog_timer(struct timer_list *t)
{
- struct cyttsp4 *cd = (struct cyttsp4 *)handle;
+ struct cyttsp4 *cd = from_timer(cd, t, watchdog_timer);
dev_vdbg(cd->dev, "%s: Watchdog timer triggered\n", __func__);
@@ -2074,8 +2102,7 @@ struct cyttsp4 *cyttsp4_probe(const struct cyttsp4_bus_ops *ops,
}
/* Setup watchdog timer */
- setup_timer(&cd->watchdog_timer, cyttsp4_watchdog_timer,
- (unsigned long)cd);
+ timer_setup(&cd->watchdog_timer, cyttsp4_watchdog_timer, 0);
/*
* call startup directly to ensure that the device
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index 5bf63f76ddda..c53a3d7239e7 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -70,8 +70,10 @@
#define EDT_RAW_DATA_DELAY 1000 /* usec */
enum edt_ver {
- M06,
- M09,
+ EDT_M06,
+ EDT_M09,
+ EDT_M12,
+ GENERIC_FT,
};
struct edt_reg_addr {
@@ -179,14 +181,16 @@ static irqreturn_t edt_ft5x06_ts_isr(int irq, void *dev_id)
int error;
switch (tsdata->version) {
- case M06:
+ case EDT_M06:
cmd = 0xf9; /* tell the controller to send touch data */
offset = 5; /* where the actual touch data starts */
tplen = 4; /* data comes in so called frames */
crclen = 1; /* length of the crc data */
break;
- case M09:
+ case EDT_M09:
+ case EDT_M12:
+ case GENERIC_FT:
cmd = 0x0;
offset = 3;
tplen = 6;
@@ -209,8 +213,8 @@ static irqreturn_t edt_ft5x06_ts_isr(int irq, void *dev_id)
goto out;
}
- /* M09 does not send header or CRC */
- if (tsdata->version == M06) {
+ /* M09/M12 does not send header or CRC */
+ if (tsdata->version == EDT_M06) {
if (rdbuf[0] != 0xaa || rdbuf[1] != 0xaa ||
rdbuf[2] != datalen) {
dev_err_ratelimited(dev,
@@ -233,7 +237,7 @@ static irqreturn_t edt_ft5x06_ts_isr(int irq, void *dev_id)
continue;
/* M06 sometimes sends bogus coordinates in TOUCH_DOWN */
- if (tsdata->version == M06 && type == TOUCH_EVENT_DOWN)
+ if (tsdata->version == EDT_M06 && type == TOUCH_EVENT_DOWN)
continue;
x = ((buf[0] << 8) | buf[1]) & 0x0fff;
@@ -264,14 +268,16 @@ static int edt_ft5x06_register_write(struct edt_ft5x06_ts_data *tsdata,
u8 wrbuf[4];
switch (tsdata->version) {
- case M06:
+ case EDT_M06:
wrbuf[0] = tsdata->factory_mode ? 0xf3 : 0xfc;
wrbuf[1] = tsdata->factory_mode ? addr & 0x7f : addr & 0x3f;
wrbuf[2] = value;
wrbuf[3] = wrbuf[0] ^ wrbuf[1] ^ wrbuf[2];
return edt_ft5x06_ts_readwrite(tsdata->client, 4,
wrbuf, 0, NULL);
- case M09:
+ case EDT_M09:
+ case EDT_M12:
+ case GENERIC_FT:
wrbuf[0] = addr;
wrbuf[1] = value;
@@ -290,7 +296,7 @@ static int edt_ft5x06_register_read(struct edt_ft5x06_ts_data *tsdata,
int error;
switch (tsdata->version) {
- case M06:
+ case EDT_M06:
wrbuf[0] = tsdata->factory_mode ? 0xf3 : 0xfc;
wrbuf[1] = tsdata->factory_mode ? addr & 0x7f : addr & 0x3f;
wrbuf[1] |= tsdata->factory_mode ? 0x80 : 0x40;
@@ -309,7 +315,9 @@ static int edt_ft5x06_register_read(struct edt_ft5x06_ts_data *tsdata,
}
break;
- case M09:
+ case EDT_M09:
+ case EDT_M12:
+ case GENERIC_FT:
wrbuf[0] = addr;
error = edt_ft5x06_ts_readwrite(tsdata->client, 1,
wrbuf, 1, rdbuf);
@@ -368,11 +376,13 @@ static ssize_t edt_ft5x06_setting_show(struct device *dev,
}
switch (tsdata->version) {
- case M06:
+ case EDT_M06:
addr = attr->addr_m06;
break;
- case M09:
+ case EDT_M09:
+ case EDT_M12:
+ case GENERIC_FT:
addr = attr->addr_m09;
break;
@@ -437,11 +447,13 @@ static ssize_t edt_ft5x06_setting_store(struct device *dev,
}
switch (tsdata->version) {
- case M06:
+ case EDT_M06:
addr = attr->addr_m06;
break;
- case M09:
+ case EDT_M09:
+ case EDT_M12:
+ case GENERIC_FT:
addr = attr->addr_m09;
break;
@@ -466,14 +478,18 @@ out:
return error ?: count;
}
+/* m06, m09: range 0-31, m12: range 0-5 */
static EDT_ATTR(gain, S_IWUSR | S_IRUGO, WORK_REGISTER_GAIN,
M09_REGISTER_GAIN, 0, 31);
+/* m06, m09: range 0-31, m12: range 0-16 */
static EDT_ATTR(offset, S_IWUSR | S_IRUGO, WORK_REGISTER_OFFSET,
M09_REGISTER_OFFSET, 0, 31);
+/* m06: range 20 to 80, m09: range 0 to 30, m12: range 1 to 255... */
static EDT_ATTR(threshold, S_IWUSR | S_IRUGO, WORK_REGISTER_THRESHOLD,
- M09_REGISTER_THRESHOLD, 0, 80);
+ M09_REGISTER_THRESHOLD, 0, 255);
+/* m06: range 3 to 14, m12: (0x64: 100Hz) */
static EDT_ATTR(report_rate, S_IWUSR | S_IRUGO, WORK_REGISTER_REPORT_RATE,
- NO_REGISTER, 3, 14);
+ NO_REGISTER, 0, 255);
static struct attribute *edt_ft5x06_attrs[] = {
&edt_ft5x06_attr_gain.dattr.attr,
@@ -508,7 +524,7 @@ static int edt_ft5x06_factory_mode(struct edt_ft5x06_ts_data *tsdata)
}
/* mode register is 0x3c when in the work mode */
- if (tsdata->version == M09)
+ if (tsdata->version != EDT_M06)
goto m09_out;
error = edt_ft5x06_register_write(tsdata, WORK_REGISTER_OPMODE, 0x03);
@@ -545,7 +561,7 @@ err_out:
return error;
m09_out:
- dev_err(&client->dev, "No factory mode support for M09\n");
+ dev_err(&client->dev, "No factory mode support for M09/M12/GENERIC_FT\n");
return -EINVAL;
}
@@ -770,16 +786,17 @@ static int edt_ft5x06_ts_identify(struct i2c_client *client,
* to have garbage in there
*/
memset(rdbuf, 0, sizeof(rdbuf));
- error = edt_ft5x06_ts_readwrite(client, 1, "\xbb",
+ error = edt_ft5x06_ts_readwrite(client, 1, "\xBB",
EDT_NAME_LEN - 1, rdbuf);
if (error)
return error;
- /* if we find something consistent, stay with that assumption
- * at least M09 won't send 3 bytes here
+ /* Probe content for something consistent.
+ * M06 starts with a response byte, M12 gives the data directly.
+ * M09/Generic does not provide model number information.
*/
- if (!(strncasecmp(rdbuf + 1, "EP0", 3))) {
- tsdata->version = M06;
+ if (!strncasecmp(rdbuf + 1, "EP0", 3)) {
+ tsdata->version = EDT_M06;
/* remove last '$' end marker */
rdbuf[EDT_NAME_LEN - 1] = '\0';
@@ -792,9 +809,31 @@ static int edt_ft5x06_ts_identify(struct i2c_client *client,
*p++ = '\0';
strlcpy(model_name, rdbuf + 1, EDT_NAME_LEN);
strlcpy(fw_version, p ? p : "", EDT_NAME_LEN);
+ } else if (!strncasecmp(rdbuf, "EP0", 3)) {
+ tsdata->version = EDT_M12;
+
+ /* remove last '$' end marker */
+ rdbuf[EDT_NAME_LEN - 2] = '\0';
+ if (rdbuf[EDT_NAME_LEN - 3] == '$')
+ rdbuf[EDT_NAME_LEN - 3] = '\0';
+
+ /* look for Model/Version separator */
+ p = strchr(rdbuf, '*');
+ if (p)
+ *p++ = '\0';
+ strlcpy(model_name, rdbuf, EDT_NAME_LEN);
+ strlcpy(fw_version, p ? p : "", EDT_NAME_LEN);
} else {
- /* since there are only two versions around (M06, M09) */
- tsdata->version = M09;
+ /* If it is not an EDT M06/M12 touchscreen, then the model
+ * detection is a bit hairy. The different ft5x06
+ * firmares around don't reliably implement the
+ * identification registers. Well, we'll take a shot.
+ *
+ * The main difference between generic focaltec based
+ * touches and EDT M09 is that we know how to retrieve
+ * the max coordinates for the latter.
+ */
+ tsdata->version = GENERIC_FT;
error = edt_ft5x06_ts_readwrite(client, 1, "\xA6",
2, rdbuf);
@@ -808,8 +847,34 @@ static int edt_ft5x06_ts_identify(struct i2c_client *client,
if (error)
return error;
- snprintf(model_name, EDT_NAME_LEN, "EP0%i%i0M09",
- rdbuf[0] >> 4, rdbuf[0] & 0x0F);
+ /* This "model identification" is not exact. Unfortunately
+ * not all firmwares for the ft5x06 put useful values in
+ * the identification registers.
+ */
+ switch (rdbuf[0]) {
+ case 0x35: /* EDT EP0350M09 */
+ case 0x43: /* EDT EP0430M09 */
+ case 0x50: /* EDT EP0500M09 */
+ case 0x57: /* EDT EP0570M09 */
+ case 0x70: /* EDT EP0700M09 */
+ tsdata->version = EDT_M09;
+ snprintf(model_name, EDT_NAME_LEN, "EP0%i%i0M09",
+ rdbuf[0] >> 4, rdbuf[0] & 0x0F);
+ break;
+ case 0xa1: /* EDT EP1010ML00 */
+ tsdata->version = EDT_M09;
+ snprintf(model_name, EDT_NAME_LEN, "EP%i%i0ML00",
+ rdbuf[0] >> 4, rdbuf[0] & 0x0F);
+ break;
+ case 0x5a: /* Solomon Goldentek Display */
+ snprintf(model_name, EDT_NAME_LEN, "GKTW50SCED1R0");
+ break;
+ default:
+ snprintf(model_name, EDT_NAME_LEN,
+ "generic ft5x06 (%02x)",
+ rdbuf[0]);
+ break;
+ }
}
return 0;
@@ -853,8 +918,17 @@ edt_ft5x06_ts_get_parameters(struct edt_ft5x06_ts_data *tsdata)
if (reg_addr->reg_report_rate != NO_REGISTER)
tsdata->report_rate = edt_ft5x06_register_read(tsdata,
reg_addr->reg_report_rate);
- tsdata->num_x = edt_ft5x06_register_read(tsdata, reg_addr->reg_num_x);
- tsdata->num_y = edt_ft5x06_register_read(tsdata, reg_addr->reg_num_y);
+ if (tsdata->version == EDT_M06 ||
+ tsdata->version == EDT_M09 ||
+ tsdata->version == EDT_M12) {
+ tsdata->num_x = edt_ft5x06_register_read(tsdata,
+ reg_addr->reg_num_x);
+ tsdata->num_y = edt_ft5x06_register_read(tsdata,
+ reg_addr->reg_num_y);
+ } else {
+ tsdata->num_x = -1;
+ tsdata->num_y = -1;
+ }
}
static void
@@ -863,7 +937,7 @@ edt_ft5x06_ts_set_regs(struct edt_ft5x06_ts_data *tsdata)
struct edt_reg_addr *reg_addr = &tsdata->reg_addr;
switch (tsdata->version) {
- case M06:
+ case EDT_M06:
reg_addr->reg_threshold = WORK_REGISTER_THRESHOLD;
reg_addr->reg_report_rate = WORK_REGISTER_REPORT_RATE;
reg_addr->reg_gain = WORK_REGISTER_GAIN;
@@ -872,7 +946,8 @@ edt_ft5x06_ts_set_regs(struct edt_ft5x06_ts_data *tsdata)
reg_addr->reg_num_y = WORK_REGISTER_NUM_Y;
break;
- case M09:
+ case EDT_M09:
+ case EDT_M12:
reg_addr->reg_threshold = M09_REGISTER_THRESHOLD;
reg_addr->reg_report_rate = NO_REGISTER;
reg_addr->reg_gain = M09_REGISTER_GAIN;
@@ -880,6 +955,13 @@ edt_ft5x06_ts_set_regs(struct edt_ft5x06_ts_data *tsdata)
reg_addr->reg_num_x = M09_REGISTER_NUM_X;
reg_addr->reg_num_y = M09_REGISTER_NUM_Y;
break;
+
+ case GENERIC_FT:
+ /* this is a guesswork */
+ reg_addr->reg_threshold = M09_REGISTER_THRESHOLD;
+ reg_addr->reg_gain = M09_REGISTER_GAIN;
+ reg_addr->reg_offset = M09_REGISTER_OFFSET;
+ break;
}
}
@@ -969,10 +1051,20 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client,
input->id.bustype = BUS_I2C;
input->dev.parent = &client->dev;
- input_set_abs_params(input, ABS_MT_POSITION_X,
- 0, tsdata->num_x * 64 - 1, 0, 0);
- input_set_abs_params(input, ABS_MT_POSITION_Y,
- 0, tsdata->num_y * 64 - 1, 0, 0);
+ if (tsdata->version == EDT_M06 ||
+ tsdata->version == EDT_M09 ||
+ tsdata->version == EDT_M12) {
+ input_set_abs_params(input, ABS_MT_POSITION_X,
+ 0, tsdata->num_x * 64 - 1, 0, 0);
+ input_set_abs_params(input, ABS_MT_POSITION_Y,
+ 0, tsdata->num_y * 64 - 1, 0, 0);
+ } else {
+ /* Unknown maximum values. Specify via devicetree */
+ input_set_abs_params(input, ABS_MT_POSITION_X,
+ 0, 65535, 0, 0);
+ input_set_abs_params(input, ABS_MT_POSITION_Y,
+ 0, 65535, 0, 0);
+ }
touchscreen_parse_properties(input, true, &tsdata->prop);
@@ -998,13 +1090,13 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client,
return error;
}
- error = sysfs_create_group(&client->dev.kobj, &edt_ft5x06_attr_group);
+ error = devm_device_add_group(&client->dev, &edt_ft5x06_attr_group);
if (error)
return error;
error = input_register_device(input);
if (error)
- goto err_remove_attrs;
+ return error;
edt_ft5x06_ts_prepare_debugfs(tsdata, dev_driver_string(&client->dev));
device_init_wakeup(&client->dev, 1);
@@ -1016,10 +1108,6 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client,
tsdata->reset_gpio ? desc_to_gpio(tsdata->reset_gpio) : -1);
return 0;
-
-err_remove_attrs:
- sysfs_remove_group(&client->dev.kobj, &edt_ft5x06_attr_group);
- return error;
}
static int edt_ft5x06_ts_remove(struct i2c_client *client)
@@ -1027,7 +1115,6 @@ static int edt_ft5x06_ts_remove(struct i2c_client *client)
struct edt_ft5x06_ts_data *tsdata = i2c_get_clientdata(client);
edt_ft5x06_ts_teardown_debugfs(tsdata);
- sysfs_remove_group(&client->dev.kobj, &edt_ft5x06_attr_group);
return 0;
}
diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c
index 0f4cda7282a2..e102d7764bc2 100644
--- a/drivers/input/touchscreen/elants_i2c.c
+++ b/drivers/input/touchscreen/elants_i2c.c
@@ -1070,13 +1070,6 @@ static const struct attribute_group elants_attribute_group = {
.attrs = elants_attributes,
};
-static void elants_i2c_remove_sysfs_group(void *_data)
-{
- struct elants_data *ts = _data;
-
- sysfs_remove_group(&ts->client->dev.kobj, &elants_attribute_group);
-}
-
static int elants_i2c_power_on(struct elants_data *ts)
{
int error;
@@ -1289,23 +1282,13 @@ static int elants_i2c_probe(struct i2c_client *client,
if (!client->dev.of_node)
device_init_wakeup(&client->dev, true);
- error = sysfs_create_group(&client->dev.kobj, &elants_attribute_group);
+ error = devm_device_add_group(&client->dev, &elants_attribute_group);
if (error) {
dev_err(&client->dev, "failed to create sysfs attributes: %d\n",
error);
return error;
}
- error = devm_add_action(&client->dev,
- elants_i2c_remove_sysfs_group, ts);
- if (error) {
- elants_i2c_remove_sysfs_group(ts);
- dev_err(&client->dev,
- "Failed to add sysfs cleanup action: %d\n",
- error);
- return error;
- }
-
return 0;
}
diff --git a/drivers/input/touchscreen/exc3000.c b/drivers/input/touchscreen/exc3000.c
new file mode 100644
index 000000000000..37437a53cd1a
--- /dev/null
+++ b/drivers/input/touchscreen/exc3000.c
@@ -0,0 +1,223 @@
+/*
+ * Driver for I2C connected EETI EXC3000 multiple touch controller
+ *
+ * Copyright (C) 2017 Ahmet Inan <inan@distec.de>
+ *
+ * minimal implementation based on egalax_ts.c and egalax_i2c.c
+ *
+ * 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/bitops.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/input/mt.h>
+#include <linux/input/touchscreen.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/timer.h>
+#include <asm/unaligned.h>
+
+#define EXC3000_NUM_SLOTS 10
+#define EXC3000_SLOTS_PER_FRAME 5
+#define EXC3000_LEN_FRAME 66
+#define EXC3000_LEN_POINT 10
+#define EXC3000_MT_EVENT 6
+#define EXC3000_TIMEOUT_MS 100
+
+struct exc3000_data {
+ struct i2c_client *client;
+ struct input_dev *input;
+ struct touchscreen_properties prop;
+ struct timer_list timer;
+ u8 buf[2 * EXC3000_LEN_FRAME];
+};
+
+static void exc3000_report_slots(struct input_dev *input,
+ struct touchscreen_properties *prop,
+ const u8 *buf, int num)
+{
+ for (; num--; buf += EXC3000_LEN_POINT) {
+ if (buf[0] & BIT(0)) {
+ input_mt_slot(input, buf[1]);
+ input_mt_report_slot_state(input, MT_TOOL_FINGER, true);
+ touchscreen_report_pos(input, prop,
+ get_unaligned_le16(buf + 2),
+ get_unaligned_le16(buf + 4),
+ true);
+ }
+ }
+}
+
+static void exc3000_timer(struct timer_list *t)
+{
+ struct exc3000_data *data = from_timer(data, t, timer);
+
+ input_mt_sync_frame(data->input);
+ input_sync(data->input);
+}
+
+static int exc3000_read_frame(struct i2c_client *client, u8 *buf)
+{
+ int ret;
+
+ ret = i2c_master_send(client, "'", 2);
+ if (ret < 0)
+ return ret;
+
+ if (ret != 2)
+ return -EIO;
+
+ ret = i2c_master_recv(client, buf, EXC3000_LEN_FRAME);
+ if (ret < 0)
+ return ret;
+
+ if (ret != EXC3000_LEN_FRAME)
+ return -EIO;
+
+ if (get_unaligned_le16(buf) != EXC3000_LEN_FRAME ||
+ buf[2] != EXC3000_MT_EVENT)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int exc3000_read_data(struct i2c_client *client,
+ u8 *buf, int *n_slots)
+{
+ int error;
+
+ error = exc3000_read_frame(client, buf);
+ if (error)
+ return error;
+
+ *n_slots = buf[3];
+ if (!*n_slots || *n_slots > EXC3000_NUM_SLOTS)
+ return -EINVAL;
+
+ if (*n_slots > EXC3000_SLOTS_PER_FRAME) {
+ /* Read 2nd frame to get the rest of the contacts. */
+ error = exc3000_read_frame(client, buf + EXC3000_LEN_FRAME);
+ if (error)
+ return error;
+
+ /* 2nd chunk must have number of contacts set to 0. */
+ if (buf[EXC3000_LEN_FRAME + 3] != 0)
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static irqreturn_t exc3000_interrupt(int irq, void *dev_id)
+{
+ struct exc3000_data *data = dev_id;
+ struct input_dev *input = data->input;
+ u8 *buf = data->buf;
+ int slots, total_slots;
+ int error;
+
+ error = exc3000_read_data(data->client, buf, &total_slots);
+ if (error) {
+ /* Schedule a timer to release "stuck" contacts */
+ mod_timer(&data->timer,
+ jiffies + msecs_to_jiffies(EXC3000_TIMEOUT_MS));
+ goto out;
+ }
+
+ /*
+ * We read full state successfully, no contacts will be "stuck".
+ */
+ del_timer_sync(&data->timer);
+
+ while (total_slots > 0) {
+ slots = min(total_slots, EXC3000_SLOTS_PER_FRAME);
+ exc3000_report_slots(input, &data->prop, buf + 4, slots);
+ total_slots -= slots;
+ buf += EXC3000_LEN_FRAME;
+ }
+
+ input_mt_sync_frame(input);
+ input_sync(input);
+
+out:
+ return IRQ_HANDLED;
+}
+
+static int exc3000_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct exc3000_data *data;
+ struct input_dev *input;
+ int error;
+
+ data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ data->client = client;
+ timer_setup(&data->timer, exc3000_timer, 0);
+
+ input = devm_input_allocate_device(&client->dev);
+ if (!input)
+ return -ENOMEM;
+
+ data->input = input;
+
+ input->name = "EETI EXC3000 Touch Screen";
+ input->id.bustype = BUS_I2C;
+
+ input_set_abs_params(input, ABS_MT_POSITION_X, 0, 4095, 0, 0);
+ input_set_abs_params(input, ABS_MT_POSITION_Y, 0, 4095, 0, 0);
+ touchscreen_parse_properties(input, true, &data->prop);
+
+ error = input_mt_init_slots(input, EXC3000_NUM_SLOTS,
+ INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED);
+ if (error)
+ return error;
+
+ error = input_register_device(input);
+ if (error)
+ return error;
+
+ error = devm_request_threaded_irq(&client->dev, client->irq,
+ NULL, exc3000_interrupt, IRQF_ONESHOT,
+ client->name, data);
+ if (error)
+ return error;
+
+ return 0;
+}
+
+static const struct i2c_device_id exc3000_id[] = {
+ { "exc3000", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, exc3000_id);
+
+#ifdef CONFIG_OF
+static const struct of_device_id exc3000_of_match[] = {
+ { .compatible = "eeti,exc3000" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, exc3000_of_match);
+#endif
+
+static struct i2c_driver exc3000_driver = {
+ .driver = {
+ .name = "exc3000",
+ .of_match_table = of_match_ptr(exc3000_of_match),
+ },
+ .id_table = exc3000_id,
+ .probe = exc3000_probe,
+};
+
+module_i2c_driver(exc3000_driver);
+
+MODULE_AUTHOR("Ahmet Inan <inan@distec.de>");
+MODULE_DESCRIPTION("I2C connected EETI EXC3000 multiple touch controller driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c
index b3bbad7d2282..69d0b8cbc71f 100644
--- a/drivers/input/touchscreen/goodix.c
+++ b/drivers/input/touchscreen/goodix.c
@@ -31,9 +31,18 @@
#include <linux/of.h>
#include <asm/unaligned.h>
+struct goodix_ts_data;
+
+struct goodix_chip_data {
+ u16 config_addr;
+ int config_len;
+ int (*check_config)(struct goodix_ts_data *, const struct firmware *);
+};
+
struct goodix_ts_data {
struct i2c_client *client;
struct input_dev *input_dev;
+ const struct goodix_chip_data *chip;
int abs_x_max;
int abs_y_max;
bool swapped_x_y;
@@ -41,7 +50,6 @@ struct goodix_ts_data {
bool inverted_y;
unsigned int max_touch_num;
unsigned int int_trigger_type;
- int cfg_len;
struct gpio_desc *gpiod_int;
struct gpio_desc *gpiod_rst;
u16 id;
@@ -69,7 +77,8 @@ struct goodix_ts_data {
#define GOODIX_CMD_SCREEN_OFF 0x05
#define GOODIX_READ_COOR_ADDR 0x814E
-#define GOODIX_REG_CONFIG_DATA 0x8047
+#define GOODIX_GT1X_REG_CONFIG_DATA 0x8050
+#define GOODIX_GT9X_REG_CONFIG_DATA 0x8047
#define GOODIX_REG_ID 0x8140
#define GOODIX_BUFFER_STATUS_READY BIT(7)
@@ -79,6 +88,35 @@ struct goodix_ts_data {
#define MAX_CONTACTS_LOC 5
#define TRIGGER_LOC 6
+static int goodix_check_cfg_8(struct goodix_ts_data *ts,
+ const struct firmware *cfg);
+static int goodix_check_cfg_16(struct goodix_ts_data *ts,
+ const struct firmware *cfg);
+
+static const struct goodix_chip_data gt1x_chip_data = {
+ .config_addr = GOODIX_GT1X_REG_CONFIG_DATA,
+ .config_len = GOODIX_CONFIG_MAX_LENGTH,
+ .check_config = goodix_check_cfg_16,
+};
+
+static const struct goodix_chip_data gt911_chip_data = {
+ .config_addr = GOODIX_GT9X_REG_CONFIG_DATA,
+ .config_len = GOODIX_CONFIG_911_LENGTH,
+ .check_config = goodix_check_cfg_8,
+};
+
+static const struct goodix_chip_data gt967_chip_data = {
+ .config_addr = GOODIX_GT9X_REG_CONFIG_DATA,
+ .config_len = GOODIX_CONFIG_967_LENGTH,
+ .check_config = goodix_check_cfg_8,
+};
+
+static const struct goodix_chip_data gt9x_chip_data = {
+ .config_addr = GOODIX_GT9X_REG_CONFIG_DATA,
+ .config_len = GOODIX_CONFIG_MAX_LENGTH,
+ .check_config = goodix_check_cfg_8,
+};
+
static const unsigned long goodix_irq_flags[] = {
IRQ_TYPE_EDGE_RISING,
IRQ_TYPE_EDGE_FALLING,
@@ -177,22 +215,25 @@ static int goodix_i2c_write_u8(struct i2c_client *client, u16 reg, u8 value)
return goodix_i2c_write(client, reg, &value, sizeof(value));
}
-static int goodix_get_cfg_len(u16 id)
+static const struct goodix_chip_data *goodix_get_chip_data(u16 id)
{
switch (id) {
+ case 1151:
+ return &gt1x_chip_data;
+
case 911:
case 9271:
case 9110:
case 927:
case 928:
- return GOODIX_CONFIG_911_LENGTH;
+ return &gt911_chip_data;
case 912:
case 967:
- return GOODIX_CONFIG_967_LENGTH;
+ return &gt967_chip_data;
default:
- return GOODIX_CONFIG_MAX_LENGTH;
+ return &gt9x_chip_data;
}
}
@@ -332,25 +373,12 @@ static int goodix_request_irq(struct goodix_ts_data *ts)
ts->irq_flags, ts->client->name, ts);
}
-/**
- * goodix_check_cfg - Checks if config fw is valid
- *
- * @ts: goodix_ts_data pointer
- * @cfg: firmware config data
- */
-static int goodix_check_cfg(struct goodix_ts_data *ts,
- const struct firmware *cfg)
+static int goodix_check_cfg_8(struct goodix_ts_data *ts,
+ const struct firmware *cfg)
{
- int i, raw_cfg_len;
+ int i, raw_cfg_len = cfg->size - 2;
u8 check_sum = 0;
- if (cfg->size > GOODIX_CONFIG_MAX_LENGTH) {
- dev_err(&ts->client->dev,
- "The length of the config fw is not correct");
- return -EINVAL;
- }
-
- raw_cfg_len = cfg->size - 2;
for (i = 0; i < raw_cfg_len; i++)
check_sum += cfg->data[i];
check_sum = (~check_sum) + 1;
@@ -369,6 +397,48 @@ static int goodix_check_cfg(struct goodix_ts_data *ts,
return 0;
}
+static int goodix_check_cfg_16(struct goodix_ts_data *ts,
+ const struct firmware *cfg)
+{
+ int i, raw_cfg_len = cfg->size - 3;
+ u16 check_sum = 0;
+
+ for (i = 0; i < raw_cfg_len; i += 2)
+ check_sum += get_unaligned_be16(&cfg->data[i]);
+ check_sum = (~check_sum) + 1;
+ if (check_sum != get_unaligned_be16(&cfg->data[raw_cfg_len])) {
+ dev_err(&ts->client->dev,
+ "The checksum of the config fw is not correct");
+ return -EINVAL;
+ }
+
+ if (cfg->data[raw_cfg_len + 2] != 1) {
+ dev_err(&ts->client->dev,
+ "Config fw must have Config_Fresh register set");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/**
+ * goodix_check_cfg - Checks if config fw is valid
+ *
+ * @ts: goodix_ts_data pointer
+ * @cfg: firmware config data
+ */
+static int goodix_check_cfg(struct goodix_ts_data *ts,
+ const struct firmware *cfg)
+{
+ if (cfg->size > GOODIX_CONFIG_MAX_LENGTH) {
+ dev_err(&ts->client->dev,
+ "The length of the config fw is not correct");
+ return -EINVAL;
+ }
+
+ return ts->chip->check_config(ts, cfg);
+}
+
/**
* goodix_send_cfg - Write fw config to device
*
@@ -384,7 +454,7 @@ static int goodix_send_cfg(struct goodix_ts_data *ts,
if (error)
return error;
- error = goodix_i2c_write(ts->client, GOODIX_REG_CONFIG_DATA, cfg->data,
+ error = goodix_i2c_write(ts->client, ts->chip->config_addr, cfg->data,
cfg->size);
if (error) {
dev_err(&ts->client->dev, "Failed to write config data: %d",
@@ -511,8 +581,8 @@ static void goodix_read_config(struct goodix_ts_data *ts)
u8 config[GOODIX_CONFIG_MAX_LENGTH];
int error;
- error = goodix_i2c_read(ts->client, GOODIX_REG_CONFIG_DATA,
- config, ts->cfg_len);
+ error = goodix_i2c_read(ts->client, ts->chip->config_addr,
+ config, ts->chip->config_len);
if (error) {
dev_warn(&ts->client->dev,
"Error reading config (%d), using defaults\n",
@@ -592,7 +662,7 @@ static int goodix_i2c_test(struct i2c_client *client)
u8 test;
while (retry++ < 2) {
- error = goodix_i2c_read(client, GOODIX_REG_CONFIG_DATA,
+ error = goodix_i2c_read(client, GOODIX_REG_ID,
&test, 1);
if (!error)
return 0;
@@ -762,7 +832,7 @@ static int goodix_ts_probe(struct i2c_client *client,
return error;
}
- ts->cfg_len = goodix_get_cfg_len(ts->id);
+ ts->chip = goodix_get_chip_data(ts->id);
if (ts->gpiod_int && ts->gpiod_rst) {
/* update device config */
@@ -891,6 +961,7 @@ MODULE_DEVICE_TABLE(acpi, goodix_acpi_match);
#ifdef CONFIG_OF
static const struct of_device_id goodix_of_match[] = {
+ { .compatible = "goodix,gt1151" },
{ .compatible = "goodix,gt911" },
{ .compatible = "goodix,gt9110" },
{ .compatible = "goodix,gt912" },
diff --git a/drivers/input/touchscreen/hideep.c b/drivers/input/touchscreen/hideep.c
new file mode 100644
index 000000000000..fc080a7c2e1f
--- /dev/null
+++ b/drivers/input/touchscreen/hideep.c
@@ -0,0 +1,1120 @@
+/*
+ * Copyright (C) 2012-2017 Hideep, Inc.
+ *
+ * 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 Foudation.
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/firmware.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
+#include <linux/i2c.h>
+#include <linux/acpi.h>
+#include <linux/interrupt.h>
+#include <linux/regmap.h>
+#include <linux/sysfs.h>
+#include <linux/input.h>
+#include <linux/input/mt.h>
+#include <linux/input/touchscreen.h>
+#include <linux/regulator/consumer.h>
+#include <asm/unaligned.h>
+
+#define HIDEEP_TS_NAME "HiDeep Touchscreen"
+#define HIDEEP_I2C_NAME "hideep_ts"
+
+#define HIDEEP_MT_MAX 10
+#define HIDEEP_KEY_MAX 3
+
+/* count(2) + touch data(100) + key data(6) */
+#define HIDEEP_MAX_EVENT 108UL
+
+#define HIDEEP_TOUCH_EVENT_INDEX 2
+#define HIDEEP_KEY_EVENT_INDEX 102
+
+/* Touch & key event */
+#define HIDEEP_EVENT_ADDR 0x240
+
+/* command list */
+#define HIDEEP_RESET_CMD 0x9800
+
+/* event bit */
+#define HIDEEP_MT_RELEASED BIT(4)
+#define HIDEEP_KEY_PRESSED BIT(7)
+#define HIDEEP_KEY_FIRST_PRESSED BIT(8)
+#define HIDEEP_KEY_PRESSED_MASK (HIDEEP_KEY_PRESSED | \
+ HIDEEP_KEY_FIRST_PRESSED)
+
+#define HIDEEP_KEY_IDX_MASK 0x0f
+
+/* For NVM */
+#define HIDEEP_YRAM_BASE 0x40000000
+#define HIDEEP_PERIPHERAL_BASE 0x50000000
+#define HIDEEP_ESI_BASE (HIDEEP_PERIPHERAL_BASE + 0x00000000)
+#define HIDEEP_FLASH_BASE (HIDEEP_PERIPHERAL_BASE + 0x01000000)
+#define HIDEEP_SYSCON_BASE (HIDEEP_PERIPHERAL_BASE + 0x02000000)
+
+#define HIDEEP_SYSCON_MOD_CON (HIDEEP_SYSCON_BASE + 0x0000)
+#define HIDEEP_SYSCON_SPC_CON (HIDEEP_SYSCON_BASE + 0x0004)
+#define HIDEEP_SYSCON_CLK_CON (HIDEEP_SYSCON_BASE + 0x0008)
+#define HIDEEP_SYSCON_CLK_ENA (HIDEEP_SYSCON_BASE + 0x000C)
+#define HIDEEP_SYSCON_RST_CON (HIDEEP_SYSCON_BASE + 0x0010)
+#define HIDEEP_SYSCON_WDT_CON (HIDEEP_SYSCON_BASE + 0x0014)
+#define HIDEEP_SYSCON_WDT_CNT (HIDEEP_SYSCON_BASE + 0x0018)
+#define HIDEEP_SYSCON_PWR_CON (HIDEEP_SYSCON_BASE + 0x0020)
+#define HIDEEP_SYSCON_PGM_ID (HIDEEP_SYSCON_BASE + 0x00F4)
+
+#define HIDEEP_FLASH_CON (HIDEEP_FLASH_BASE + 0x0000)
+#define HIDEEP_FLASH_STA (HIDEEP_FLASH_BASE + 0x0004)
+#define HIDEEP_FLASH_CFG (HIDEEP_FLASH_BASE + 0x0008)
+#define HIDEEP_FLASH_TIM (HIDEEP_FLASH_BASE + 0x000C)
+#define HIDEEP_FLASH_CACHE_CFG (HIDEEP_FLASH_BASE + 0x0010)
+#define HIDEEP_FLASH_PIO_SIG (HIDEEP_FLASH_BASE + 0x400000)
+
+#define HIDEEP_ESI_TX_INVALID (HIDEEP_ESI_BASE + 0x0008)
+
+#define HIDEEP_PERASE 0x00040000
+#define HIDEEP_WRONLY 0x00100000
+
+#define HIDEEP_NVM_MASK_OFS 0x0000000C
+#define HIDEEP_NVM_DEFAULT_PAGE 0
+#define HIDEEP_NVM_SFR_WPAGE 1
+#define HIDEEP_NVM_SFR_RPAGE 2
+
+#define HIDEEP_PIO_SIG 0x00400000
+#define HIDEEP_PROT_MODE 0x03400000
+
+#define HIDEEP_NVM_PAGE_SIZE 128
+
+#define HIDEEP_DWZ_INFO 0x000002C0
+
+struct hideep_event {
+ __le16 x;
+ __le16 y;
+ __le16 z;
+ u8 w;
+ u8 flag;
+ u8 type;
+ u8 index;
+};
+
+struct dwz_info {
+ __be32 code_start;
+ u8 code_crc[12];
+
+ __be32 c_code_start;
+ __be16 gen_ver;
+ __be16 c_code_len;
+
+ __be32 vr_start;
+ __be16 rsv0;
+ __be16 vr_len;
+
+ __be32 ft_start;
+ __be16 vr_version;
+ __be16 ft_len;
+
+ __be16 core_ver;
+ __be16 boot_ver;
+
+ __be16 release_ver;
+ __be16 custom_ver;
+
+ u8 factory_id;
+ u8 panel_type;
+ u8 model_name[6];
+
+ __be16 extra_option;
+ __be16 product_code;
+
+ __be16 vendor_id;
+ __be16 product_id;
+};
+
+struct pgm_packet {
+ struct {
+ u8 unused[3];
+ u8 len;
+ __be32 addr;
+ } header;
+ __be32 payload[HIDEEP_NVM_PAGE_SIZE / sizeof(__be32)];
+};
+
+#define HIDEEP_XFER_BUF_SIZE sizeof(struct pgm_packet)
+
+struct hideep_ts {
+ struct i2c_client *client;
+ struct input_dev *input_dev;
+ struct regmap *reg;
+
+ struct touchscreen_properties prop;
+
+ struct gpio_desc *reset_gpio;
+
+ struct regulator *vcc_vdd;
+ struct regulator *vcc_vid;
+
+ struct mutex dev_mutex;
+
+ u32 tch_count;
+ u32 lpm_count;
+
+ /*
+ * Data buffer to read packet from the device (contacts and key
+ * states). We align it on double-word boundary to keep word-sized
+ * fields in contact data and double-word-sized fields in program
+ * packet aligned.
+ */
+ u8 xfer_buf[HIDEEP_XFER_BUF_SIZE] __aligned(4);
+
+ int key_num;
+ u32 key_codes[HIDEEP_KEY_MAX];
+
+ struct dwz_info dwz_info;
+
+ unsigned int fw_size;
+ u32 nvm_mask;
+};
+
+static int hideep_pgm_w_mem(struct hideep_ts *ts, u32 addr,
+ const __be32 *data, size_t count)
+{
+ struct pgm_packet *packet = (void *)ts->xfer_buf;
+ size_t len = count * sizeof(*data);
+ struct i2c_msg msg = {
+ .addr = ts->client->addr,
+ .len = len + sizeof(packet->header.len) +
+ sizeof(packet->header.addr),
+ .buf = &packet->header.len,
+ };
+ int ret;
+
+ if (len > HIDEEP_NVM_PAGE_SIZE)
+ return -EINVAL;
+
+ packet->header.len = 0x80 | (count - 1);
+ packet->header.addr = cpu_to_be32(addr);
+ memcpy(packet->payload, data, len);
+
+ ret = i2c_transfer(ts->client->adapter, &msg, 1);
+ if (ret != 1)
+ return ret < 0 ? ret : -EIO;
+
+ return 0;
+}
+
+static int hideep_pgm_r_mem(struct hideep_ts *ts, u32 addr,
+ __be32 *data, size_t count)
+{
+ struct pgm_packet *packet = (void *)ts->xfer_buf;
+ size_t len = count * sizeof(*data);
+ struct i2c_msg msg[] = {
+ {
+ .addr = ts->client->addr,
+ .len = sizeof(packet->header.len) +
+ sizeof(packet->header.addr),
+ .buf = &packet->header.len,
+ },
+ {
+ .addr = ts->client->addr,
+ .flags = I2C_M_RD,
+ .len = len,
+ .buf = (u8 *)data,
+ },
+ };
+ int ret;
+
+ if (len > HIDEEP_NVM_PAGE_SIZE)
+ return -EINVAL;
+
+ packet->header.len = count - 1;
+ packet->header.addr = cpu_to_be32(addr);
+
+ ret = i2c_transfer(ts->client->adapter, msg, ARRAY_SIZE(msg));
+ if (ret != ARRAY_SIZE(msg))
+ return ret < 0 ? ret : -EIO;
+
+ return 0;
+}
+
+static int hideep_pgm_r_reg(struct hideep_ts *ts, u32 addr, u32 *val)
+{
+ __be32 data;
+ int error;
+
+ error = hideep_pgm_r_mem(ts, addr, &data, 1);
+ if (error) {
+ dev_err(&ts->client->dev,
+ "read of register %#08x failed: %d\n",
+ addr, error);
+ return error;
+ }
+
+ *val = be32_to_cpu(data);
+ return 0;
+}
+
+static int hideep_pgm_w_reg(struct hideep_ts *ts, u32 addr, u32 val)
+{
+ __be32 data = cpu_to_be32(val);
+ int error;
+
+ error = hideep_pgm_w_mem(ts, addr, &data, 1);
+ if (error) {
+ dev_err(&ts->client->dev,
+ "write to register %#08x (%#08x) failed: %d\n",
+ addr, val, error);
+ return error;
+ }
+
+ return 0;
+}
+
+#define SW_RESET_IN_PGM(clk) \
+{ \
+ hideep_pgm_w_reg(ts, HIDEEP_SYSCON_WDT_CNT, (clk)); \
+ hideep_pgm_w_reg(ts, HIDEEP_SYSCON_WDT_CON, 0x03); \
+ hideep_pgm_w_reg(ts, HIDEEP_SYSCON_WDT_CON, 0x01); \
+}
+
+#define SET_FLASH_PIO(ce) \
+ hideep_pgm_w_reg(ts, HIDEEP_FLASH_CON, \
+ 0x01 | ((ce) << 1))
+
+#define SET_PIO_SIG(x, y) \
+ hideep_pgm_w_reg(ts, HIDEEP_FLASH_PIO_SIG + (x), (y))
+
+#define SET_FLASH_HWCONTROL() \
+ hideep_pgm_w_reg(ts, HIDEEP_FLASH_CON, 0x00)
+
+#define NVM_W_SFR(x, y) \
+{ \
+ SET_FLASH_PIO(1); \
+ SET_PIO_SIG(x, y); \
+ SET_FLASH_PIO(0); \
+}
+
+static void hideep_pgm_set(struct hideep_ts *ts)
+{
+ hideep_pgm_w_reg(ts, HIDEEP_SYSCON_WDT_CON, 0x00);
+ hideep_pgm_w_reg(ts, HIDEEP_SYSCON_SPC_CON, 0x00);
+ hideep_pgm_w_reg(ts, HIDEEP_SYSCON_CLK_ENA, 0xFF);
+ hideep_pgm_w_reg(ts, HIDEEP_SYSCON_CLK_CON, 0x01);
+ hideep_pgm_w_reg(ts, HIDEEP_SYSCON_PWR_CON, 0x01);
+ hideep_pgm_w_reg(ts, HIDEEP_FLASH_TIM, 0x03);
+ hideep_pgm_w_reg(ts, HIDEEP_FLASH_CACHE_CFG, 0x00);
+}
+
+static int hideep_pgm_get_pattern(struct hideep_ts *ts, u32 *pattern)
+{
+ u16 p1 = 0xAF39;
+ u16 p2 = 0xDF9D;
+ int error;
+
+ error = regmap_bulk_write(ts->reg, p1, &p2, 1);
+ if (error) {
+ dev_err(&ts->client->dev,
+ "%s: regmap_bulk_write() failed with %d\n",
+ __func__, error);
+ return error;
+ }
+
+ usleep_range(1000, 1100);
+
+ /* flush invalid Tx load register */
+ error = hideep_pgm_w_reg(ts, HIDEEP_ESI_TX_INVALID, 0x01);
+ if (error)
+ return error;
+
+ error = hideep_pgm_r_reg(ts, HIDEEP_SYSCON_PGM_ID, pattern);
+ if (error)
+ return error;
+
+ return 0;
+}
+
+static int hideep_enter_pgm(struct hideep_ts *ts)
+{
+ int retry_count = 10;
+ u32 pattern;
+ int error;
+
+ while (retry_count--) {
+ error = hideep_pgm_get_pattern(ts, &pattern);
+ if (error) {
+ dev_err(&ts->client->dev,
+ "hideep_pgm_get_pattern failed: %d\n", error);
+ } else if (pattern != 0x39AF9DDF) {
+ dev_err(&ts->client->dev, "%s: bad pattern: %#08x\n",
+ __func__, pattern);
+ } else {
+ dev_dbg(&ts->client->dev, "found magic code");
+
+ hideep_pgm_set(ts);
+ usleep_range(1000, 1100);
+
+ return 0;
+ }
+ }
+
+ dev_err(&ts->client->dev, "failed to enter pgm mode\n");
+ SW_RESET_IN_PGM(1000);
+ return -EIO;
+}
+
+static void hideep_nvm_unlock(struct hideep_ts *ts)
+{
+ u32 unmask_code;
+
+ hideep_pgm_w_reg(ts, HIDEEP_FLASH_CFG, HIDEEP_NVM_SFR_RPAGE);
+ hideep_pgm_r_reg(ts, 0x0000000C, &unmask_code);
+ hideep_pgm_w_reg(ts, HIDEEP_FLASH_CFG, HIDEEP_NVM_DEFAULT_PAGE);
+
+ /* make it unprotected code */
+ unmask_code &= ~HIDEEP_PROT_MODE;
+
+ /* compare unmask code */
+ if (unmask_code != ts->nvm_mask)
+ dev_warn(&ts->client->dev,
+ "read mask code different %#08x vs %#08x",
+ unmask_code, ts->nvm_mask);
+
+ hideep_pgm_w_reg(ts, HIDEEP_FLASH_CFG, HIDEEP_NVM_SFR_WPAGE);
+ SET_FLASH_PIO(0);
+
+ NVM_W_SFR(HIDEEP_NVM_MASK_OFS, ts->nvm_mask);
+ SET_FLASH_HWCONTROL();
+ hideep_pgm_w_reg(ts, HIDEEP_FLASH_CFG, HIDEEP_NVM_DEFAULT_PAGE);
+}
+
+static int hideep_check_status(struct hideep_ts *ts)
+{
+ int time_out = 100;
+ int status;
+ int error;
+
+ while (time_out--) {
+ error = hideep_pgm_r_reg(ts, HIDEEP_FLASH_STA, &status);
+ if (!error && status)
+ return 0;
+
+ usleep_range(1000, 1100);
+ }
+
+ return -ETIMEDOUT;
+}
+
+static int hideep_program_page(struct hideep_ts *ts, u32 addr,
+ const __be32 *ucode, size_t xfer_count)
+{
+ u32 val;
+ int error;
+
+ error = hideep_check_status(ts);
+ if (error)
+ return -EBUSY;
+
+ addr &= ~(HIDEEP_NVM_PAGE_SIZE - 1);
+
+ SET_FLASH_PIO(0);
+ SET_FLASH_PIO(1);
+
+ /* erase page */
+ SET_PIO_SIG(HIDEEP_PERASE | addr, 0xFFFFFFFF);
+
+ SET_FLASH_PIO(0);
+
+ error = hideep_check_status(ts);
+ if (error)
+ return -EBUSY;
+
+ /* write page */
+ SET_FLASH_PIO(1);
+
+ val = be32_to_cpu(ucode[0]);
+ SET_PIO_SIG(HIDEEP_WRONLY | addr, val);
+
+ hideep_pgm_w_mem(ts, HIDEEP_FLASH_PIO_SIG | HIDEEP_WRONLY,
+ ucode, xfer_count);
+
+ val = be32_to_cpu(ucode[xfer_count - 1]);
+ SET_PIO_SIG(124, val);
+
+ SET_FLASH_PIO(0);
+
+ usleep_range(1000, 1100);
+
+ error = hideep_check_status(ts);
+ if (error)
+ return -EBUSY;
+
+ SET_FLASH_HWCONTROL();
+
+ return 0;
+}
+
+static int hideep_program_nvm(struct hideep_ts *ts,
+ const __be32 *ucode, size_t ucode_len)
+{
+ struct pgm_packet *packet_r = (void *)ts->xfer_buf;
+ __be32 *current_ucode = packet_r->payload;
+ size_t xfer_len;
+ size_t xfer_count;
+ u32 addr = 0;
+ int error;
+
+ hideep_nvm_unlock(ts);
+
+ while (ucode_len > 0) {
+ xfer_len = min_t(size_t, ucode_len, HIDEEP_NVM_PAGE_SIZE);
+ xfer_count = xfer_len / sizeof(*ucode);
+
+ error = hideep_pgm_r_mem(ts, 0x00000000 + addr,
+ current_ucode, xfer_count);
+ if (error) {
+ dev_err(&ts->client->dev,
+ "%s: failed to read page at offset %#08x: %d\n",
+ __func__, addr, error);
+ return error;
+ }
+
+ /* See if the page needs updating */
+ if (memcmp(ucode, current_ucode, xfer_len)) {
+ error = hideep_program_page(ts, addr,
+ ucode, xfer_count);
+ if (error) {
+ dev_err(&ts->client->dev,
+ "%s: iwrite failure @%#08x: %d\n",
+ __func__, addr, error);
+ return error;
+ }
+
+ usleep_range(1000, 1100);
+ }
+
+ ucode += xfer_count;
+ addr += xfer_len;
+ ucode_len -= xfer_len;
+ }
+
+ return 0;
+}
+
+static int hideep_verify_nvm(struct hideep_ts *ts,
+ const __be32 *ucode, size_t ucode_len)
+{
+ struct pgm_packet *packet_r = (void *)ts->xfer_buf;
+ __be32 *current_ucode = packet_r->payload;
+ size_t xfer_len;
+ size_t xfer_count;
+ u32 addr = 0;
+ int i;
+ int error;
+
+ while (ucode_len > 0) {
+ xfer_len = min_t(size_t, ucode_len, HIDEEP_NVM_PAGE_SIZE);
+ xfer_count = xfer_len / sizeof(*ucode);
+
+ error = hideep_pgm_r_mem(ts, 0x00000000 + addr,
+ current_ucode, xfer_count);
+ if (error) {
+ dev_err(&ts->client->dev,
+ "%s: failed to read page at offset %#08x: %d\n",
+ __func__, addr, error);
+ return error;
+ }
+
+ if (memcmp(ucode, current_ucode, xfer_len)) {
+ const u8 *ucode_bytes = (const u8 *)ucode;
+ const u8 *current_bytes = (const u8 *)current_ucode;
+
+ for (i = 0; i < xfer_len; i++)
+ if (ucode_bytes[i] != current_bytes[i])
+ dev_err(&ts->client->dev,
+ "%s: mismatch @%#08x: (%#02x vs %#02x)\n",
+ __func__, addr + i,
+ ucode_bytes[i],
+ current_bytes[i]);
+
+ return -EIO;
+ }
+
+ ucode += xfer_count;
+ addr += xfer_len;
+ ucode_len -= xfer_len;
+ }
+
+ return 0;
+}
+
+static int hideep_load_dwz(struct hideep_ts *ts)
+{
+ u16 product_code;
+ int error;
+
+ error = hideep_enter_pgm(ts);
+ if (error)
+ return error;
+
+ msleep(50);
+
+ error = hideep_pgm_r_mem(ts, HIDEEP_DWZ_INFO,
+ (void *)&ts->dwz_info,
+ sizeof(ts->dwz_info) / sizeof(__be32));
+
+ SW_RESET_IN_PGM(10);
+ msleep(50);
+
+ if (error) {
+ dev_err(&ts->client->dev,
+ "failed to fetch DWZ data: %d\n", error);
+ return error;
+ }
+
+ product_code = be16_to_cpu(ts->dwz_info.product_code);
+
+ switch (product_code & 0xF0) {
+ case 0x40:
+ dev_dbg(&ts->client->dev, "used crimson IC");
+ ts->fw_size = 1024 * 48;
+ ts->nvm_mask = 0x00310000;
+ break;
+ case 0x60:
+ dev_dbg(&ts->client->dev, "used lime IC");
+ ts->fw_size = 1024 * 64;
+ ts->nvm_mask = 0x0030027B;
+ break;
+ default:
+ dev_err(&ts->client->dev, "product code is wrong: %#04x",
+ product_code);
+ return -EINVAL;
+ }
+
+ dev_dbg(&ts->client->dev, "firmware release version: %#04x",
+ be16_to_cpu(ts->dwz_info.release_ver));
+
+ return 0;
+}
+
+static int hideep_flash_firmware(struct hideep_ts *ts,
+ const __be32 *ucode, size_t ucode_len)
+{
+ int retry_cnt = 3;
+ int error;
+
+ while (retry_cnt--) {
+ error = hideep_program_nvm(ts, ucode, ucode_len);
+ if (!error) {
+ error = hideep_verify_nvm(ts, ucode, ucode_len);
+ if (!error)
+ return 0;
+ }
+ }
+
+ return error;
+}
+
+static int hideep_update_firmware(struct hideep_ts *ts,
+ const __be32 *ucode, size_t ucode_len)
+{
+ int error, error2;
+
+ dev_dbg(&ts->client->dev, "starting firmware update");
+
+ /* enter program mode */
+ error = hideep_enter_pgm(ts);
+ if (error)
+ return error;
+
+ error = hideep_flash_firmware(ts, ucode, ucode_len);
+ if (error)
+ dev_err(&ts->client->dev,
+ "firmware update failed: %d\n", error);
+ else
+ dev_dbg(&ts->client->dev, "firmware updated successfully\n");
+
+ SW_RESET_IN_PGM(1000);
+
+ error2 = hideep_load_dwz(ts);
+ if (error2)
+ dev_err(&ts->client->dev,
+ "failed to load dwz after firmware update: %d\n",
+ error2);
+
+ return error ?: error2;
+}
+
+static int hideep_power_on(struct hideep_ts *ts)
+{
+ int error = 0;
+
+ error = regulator_enable(ts->vcc_vdd);
+ if (error)
+ dev_err(&ts->client->dev,
+ "failed to enable 'vdd' regulator: %d", error);
+
+ usleep_range(999, 1000);
+
+ error = regulator_enable(ts->vcc_vid);
+ if (error)
+ dev_err(&ts->client->dev,
+ "failed to enable 'vcc_vid' regulator: %d",
+ error);
+
+ msleep(30);
+
+ if (ts->reset_gpio) {
+ gpiod_set_value_cansleep(ts->reset_gpio, 0);
+ } else {
+ error = regmap_write(ts->reg, HIDEEP_RESET_CMD, 0x01);
+ if (error)
+ dev_err(&ts->client->dev,
+ "failed to send 'reset' command: %d\n", error);
+ }
+
+ msleep(50);
+
+ return error;
+}
+
+static void hideep_power_off(void *data)
+{
+ struct hideep_ts *ts = data;
+
+ if (ts->reset_gpio)
+ gpiod_set_value(ts->reset_gpio, 1);
+
+ regulator_disable(ts->vcc_vid);
+ regulator_disable(ts->vcc_vdd);
+}
+
+#define __GET_MT_TOOL_TYPE(type) ((type) == 0x01 ? MT_TOOL_FINGER : MT_TOOL_PEN)
+
+static void hideep_report_slot(struct input_dev *input,
+ const struct hideep_event *event)
+{
+ input_mt_slot(input, event->index & 0x0f);
+ input_mt_report_slot_state(input,
+ __GET_MT_TOOL_TYPE(event->type),
+ !(event->flag & HIDEEP_MT_RELEASED));
+ if (!(event->flag & HIDEEP_MT_RELEASED)) {
+ input_report_abs(input, ABS_MT_POSITION_X,
+ le16_to_cpup(&event->x));
+ input_report_abs(input, ABS_MT_POSITION_Y,
+ le16_to_cpup(&event->y));
+ input_report_abs(input, ABS_MT_PRESSURE,
+ le16_to_cpup(&event->z));
+ input_report_abs(input, ABS_MT_TOUCH_MAJOR, event->w);
+ }
+}
+
+static void hideep_parse_and_report(struct hideep_ts *ts)
+{
+ const struct hideep_event *events =
+ (void *)&ts->xfer_buf[HIDEEP_TOUCH_EVENT_INDEX];
+ const u8 *keys = &ts->xfer_buf[HIDEEP_KEY_EVENT_INDEX];
+ int touch_count = ts->xfer_buf[0];
+ int key_count = ts->xfer_buf[1] & 0x0f;
+ int lpm_count = ts->xfer_buf[1] & 0xf0;
+ int i;
+
+ /* get touch event count */
+ dev_dbg(&ts->client->dev, "mt = %d, key = %d, lpm = %02x",
+ touch_count, key_count, lpm_count);
+
+ touch_count = min(touch_count, HIDEEP_MT_MAX);
+ for (i = 0; i < touch_count; i++)
+ hideep_report_slot(ts->input_dev, events + i);
+
+ key_count = min(key_count, HIDEEP_KEY_MAX);
+ for (i = 0; i < key_count; i++) {
+ u8 key_data = keys[i * 2];
+
+ input_report_key(ts->input_dev,
+ ts->key_codes[key_data & HIDEEP_KEY_IDX_MASK],
+ key_data & HIDEEP_KEY_PRESSED_MASK);
+ }
+
+ input_mt_sync_frame(ts->input_dev);
+ input_sync(ts->input_dev);
+}
+
+static irqreturn_t hideep_irq(int irq, void *handle)
+{
+ struct hideep_ts *ts = handle;
+ int error;
+
+ BUILD_BUG_ON(HIDEEP_MAX_EVENT > HIDEEP_XFER_BUF_SIZE);
+
+ error = regmap_bulk_read(ts->reg, HIDEEP_EVENT_ADDR,
+ ts->xfer_buf, HIDEEP_MAX_EVENT / 2);
+ if (error) {
+ dev_err(&ts->client->dev, "failed to read events: %d\n", error);
+ goto out;
+ }
+
+ hideep_parse_and_report(ts);
+
+out:
+ return IRQ_HANDLED;
+}
+
+static int hideep_get_axis_info(struct hideep_ts *ts)
+{
+ __le16 val[2];
+ int error;
+
+ error = regmap_bulk_read(ts->reg, 0x28, val, ARRAY_SIZE(val));
+ if (error)
+ return error;
+
+ ts->prop.max_x = le16_to_cpup(val);
+ ts->prop.max_y = le16_to_cpup(val + 1);
+
+ dev_dbg(&ts->client->dev, "X: %d, Y: %d",
+ ts->prop.max_x, ts->prop.max_y);
+
+ return 0;
+}
+
+static int hideep_init_input(struct hideep_ts *ts)
+{
+ struct device *dev = &ts->client->dev;
+ int i;
+ int error;
+
+ ts->input_dev = devm_input_allocate_device(dev);
+ if (!ts->input_dev) {
+ dev_err(dev, "failed to allocate input device\n");
+ return -ENOMEM;
+ }
+
+ ts->input_dev->name = HIDEEP_TS_NAME;
+ ts->input_dev->id.bustype = BUS_I2C;
+ input_set_drvdata(ts->input_dev, ts);
+
+ input_set_capability(ts->input_dev, EV_ABS, ABS_MT_POSITION_X);
+ input_set_capability(ts->input_dev, EV_ABS, ABS_MT_POSITION_Y);
+ input_set_abs_params(ts->input_dev, ABS_MT_PRESSURE, 0, 65535, 0, 0);
+ input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);
+ input_set_abs_params(ts->input_dev, ABS_MT_TOOL_TYPE,
+ 0, MT_TOOL_MAX, 0, 0);
+ touchscreen_parse_properties(ts->input_dev, true, &ts->prop);
+
+ if (ts->prop.max_x == 0 || ts->prop.max_y == 0) {
+ error = hideep_get_axis_info(ts);
+ if (error)
+ return error;
+ }
+
+ error = input_mt_init_slots(ts->input_dev, HIDEEP_MT_MAX,
+ INPUT_MT_DIRECT);
+ if (error)
+ return error;
+
+ ts->key_num = device_property_read_u32_array(dev, "linux,keycodes",
+ NULL, 0);
+ if (ts->key_num > HIDEEP_KEY_MAX) {
+ dev_err(dev, "too many keys defined: %d\n",
+ ts->key_num);
+ return -EINVAL;
+ }
+
+ if (ts->key_num <= 0) {
+ dev_dbg(dev,
+ "missing or malformed 'linux,keycodes' property\n");
+ } else {
+ error = device_property_read_u32_array(dev, "linux,keycodes",
+ ts->key_codes,
+ ts->key_num);
+ if (error) {
+ dev_dbg(dev, "failed to read keymap: %d", error);
+ return error;
+ }
+
+ if (ts->key_num) {
+ ts->input_dev->keycode = ts->key_codes;
+ ts->input_dev->keycodesize = sizeof(ts->key_codes[0]);
+ ts->input_dev->keycodemax = ts->key_num;
+
+ for (i = 0; i < ts->key_num; i++)
+ input_set_capability(ts->input_dev, EV_KEY,
+ ts->key_codes[i]);
+ }
+ }
+
+ error = input_register_device(ts->input_dev);
+ if (error) {
+ dev_err(dev, "failed to register input device: %d", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static ssize_t hideep_update_fw(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct hideep_ts *ts = i2c_get_clientdata(client);
+ const struct firmware *fw_entry;
+ char *fw_name;
+ int mode;
+ int error;
+
+ error = kstrtoint(buf, 0, &mode);
+ if (error)
+ return error;
+
+ fw_name = kasprintf(GFP_KERNEL, "hideep_ts_%04x.bin",
+ be16_to_cpu(ts->dwz_info.product_id));
+ if (!fw_name)
+ return -ENOMEM;
+
+ error = request_firmware(&fw_entry, fw_name, dev);
+ if (error) {
+ dev_err(dev, "failed to request firmware %s: %d",
+ fw_name, error);
+ goto out_free_fw_name;
+ }
+
+ if (fw_entry->size % sizeof(__be32)) {
+ dev_err(dev, "invalid firmware size %zu\n", fw_entry->size);
+ error = -EINVAL;
+ goto out_release_fw;
+ }
+
+ if (fw_entry->size > ts->fw_size) {
+ dev_err(dev, "fw size (%zu) is too big (memory size %d)\n",
+ fw_entry->size, ts->fw_size);
+ error = -EFBIG;
+ goto out_release_fw;
+ }
+
+ mutex_lock(&ts->dev_mutex);
+ disable_irq(client->irq);
+
+ error = hideep_update_firmware(ts, (const __be32 *)fw_entry->data,
+ fw_entry->size);
+
+ enable_irq(client->irq);
+ mutex_unlock(&ts->dev_mutex);
+
+out_release_fw:
+ release_firmware(fw_entry);
+out_free_fw_name:
+ kfree(fw_name);
+
+ return error ?: count;
+}
+
+static ssize_t hideep_fw_version_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct hideep_ts *ts = i2c_get_clientdata(client);
+ ssize_t len;
+
+ mutex_lock(&ts->dev_mutex);
+ len = scnprintf(buf, PAGE_SIZE, "%04x\n",
+ be16_to_cpu(ts->dwz_info.release_ver));
+ mutex_unlock(&ts->dev_mutex);
+
+ return len;
+}
+
+static ssize_t hideep_product_id_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct hideep_ts *ts = i2c_get_clientdata(client);
+ ssize_t len;
+
+ mutex_lock(&ts->dev_mutex);
+ len = scnprintf(buf, PAGE_SIZE, "%04x\n",
+ be16_to_cpu(ts->dwz_info.product_id));
+ mutex_unlock(&ts->dev_mutex);
+
+ return len;
+}
+
+static DEVICE_ATTR(version, 0664, hideep_fw_version_show, NULL);
+static DEVICE_ATTR(product_id, 0664, hideep_product_id_show, NULL);
+static DEVICE_ATTR(update_fw, 0664, NULL, hideep_update_fw);
+
+static struct attribute *hideep_ts_sysfs_entries[] = {
+ &dev_attr_version.attr,
+ &dev_attr_product_id.attr,
+ &dev_attr_update_fw.attr,
+ NULL,
+};
+
+static const struct attribute_group hideep_ts_attr_group = {
+ .attrs = hideep_ts_sysfs_entries,
+};
+
+static int __maybe_unused hideep_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct hideep_ts *ts = i2c_get_clientdata(client);
+
+ disable_irq(client->irq);
+ hideep_power_off(ts);
+
+ return 0;
+}
+
+static int __maybe_unused hideep_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct hideep_ts *ts = i2c_get_clientdata(client);
+ int error;
+
+ error = hideep_power_on(ts);
+ if (error) {
+ dev_err(&client->dev, "power on failed");
+ return error;
+ }
+
+ enable_irq(client->irq);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(hideep_pm_ops, hideep_suspend, hideep_resume);
+
+static const struct regmap_config hideep_regmap_config = {
+ .reg_bits = 16,
+ .reg_format_endian = REGMAP_ENDIAN_LITTLE,
+ .val_bits = 16,
+ .val_format_endian = REGMAP_ENDIAN_LITTLE,
+ .max_register = 0xffff,
+};
+
+static int hideep_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct hideep_ts *ts;
+ int error;
+
+ /* check i2c bus */
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ dev_err(&client->dev, "check i2c device error");
+ return -ENODEV;
+ }
+
+ if (client->irq <= 0) {
+ dev_err(&client->dev, "missing irq: %d\n", client->irq);
+ return -EINVAL;
+ }
+
+ ts = devm_kzalloc(&client->dev, sizeof(*ts), GFP_KERNEL);
+ if (!ts)
+ return -ENOMEM;
+
+ ts->client = client;
+ i2c_set_clientdata(client, ts);
+ mutex_init(&ts->dev_mutex);
+
+ ts->reg = devm_regmap_init_i2c(client, &hideep_regmap_config);
+ if (IS_ERR(ts->reg)) {
+ error = PTR_ERR(ts->reg);
+ dev_err(&client->dev,
+ "failed to initialize regmap: %d\n", error);
+ return error;
+ }
+
+ ts->vcc_vdd = devm_regulator_get(&client->dev, "vdd");
+ if (IS_ERR(ts->vcc_vdd))
+ return PTR_ERR(ts->vcc_vdd);
+
+ ts->vcc_vid = devm_regulator_get(&client->dev, "vid");
+ if (IS_ERR(ts->vcc_vid))
+ return PTR_ERR(ts->vcc_vid);
+
+ ts->reset_gpio = devm_gpiod_get_optional(&client->dev,
+ "reset", GPIOD_OUT_HIGH);
+ if (IS_ERR(ts->reset_gpio))
+ return PTR_ERR(ts->reset_gpio);
+
+ error = hideep_power_on(ts);
+ if (error) {
+ dev_err(&client->dev, "power on failed: %d\n", error);
+ return error;
+ }
+
+ error = devm_add_action_or_reset(&client->dev, hideep_power_off, ts);
+ if (error)
+ return error;
+
+ error = hideep_load_dwz(ts);
+ if (error) {
+ dev_err(&client->dev, "failed to load dwz: %d", error);
+ return error;
+ }
+
+ error = hideep_init_input(ts);
+ if (error)
+ return error;
+
+ error = devm_request_threaded_irq(&client->dev, client->irq,
+ NULL, hideep_irq, IRQF_ONESHOT,
+ client->name, ts);
+ if (error) {
+ dev_err(&client->dev, "failed to request irq %d: %d\n",
+ client->irq, error);
+ return error;
+ }
+
+ error = devm_device_add_group(&client->dev, &hideep_ts_attr_group);
+ if (error) {
+ dev_err(&client->dev,
+ "failed to add sysfs attributes: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static const struct i2c_device_id hideep_i2c_id[] = {
+ { HIDEEP_I2C_NAME, 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, hideep_i2c_id);
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id hideep_acpi_id[] = {
+ { "HIDP0001", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, hideep_acpi_id);
+#endif
+
+#ifdef CONFIG_OF
+static const struct of_device_id hideep_match_table[] = {
+ { .compatible = "hideep,hideep-ts" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, hideep_match_table);
+#endif
+
+static struct i2c_driver hideep_driver = {
+ .driver = {
+ .name = HIDEEP_I2C_NAME,
+ .of_match_table = of_match_ptr(hideep_match_table),
+ .acpi_match_table = ACPI_PTR(hideep_acpi_id),
+ .pm = &hideep_pm_ops,
+ },
+ .id_table = hideep_i2c_id,
+ .probe = hideep_probe,
+};
+
+module_i2c_driver(hideep_driver);
+
+MODULE_DESCRIPTION("Driver for HiDeep Touchscreen Controller");
+MODULE_AUTHOR("anthony.kim@hideep.com");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/touchscreen/htcpen.c b/drivers/input/touchscreen/htcpen.c
index 92e2243fb77d..8fd909285877 100644
--- a/drivers/input/touchscreen/htcpen.c
+++ b/drivers/input/touchscreen/htcpen.c
@@ -219,7 +219,7 @@ static struct isa_driver htcpen_isa_driver = {
}
};
-static struct dmi_system_id htcshift_dmi_table[] __initdata = {
+static const struct dmi_system_id htcshift_dmi_table[] __initconst = {
{
.ident = "Shift",
.matches = {
diff --git a/drivers/input/touchscreen/melfas_mip4.c b/drivers/input/touchscreen/melfas_mip4.c
index 05108c2fea93..6892f0e28918 100644
--- a/drivers/input/touchscreen/melfas_mip4.c
+++ b/drivers/input/touchscreen/melfas_mip4.c
@@ -1433,13 +1433,6 @@ static const struct attribute_group mip4_attr_group = {
.attrs = mip4_attrs,
};
-static void mip4_sysfs_remove(void *_data)
-{
- struct mip4_ts *ts = _data;
-
- sysfs_remove_group(&ts->client->dev.kobj, &mip4_attr_group);
-}
-
static int mip4_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
struct mip4_ts *ts;
@@ -1535,21 +1528,13 @@ static int mip4_probe(struct i2c_client *client, const struct i2c_device_id *id)
return error;
}
- error = sysfs_create_group(&client->dev.kobj, &mip4_attr_group);
+ error = devm_device_add_group(&client->dev, &mip4_attr_group);
if (error) {
dev_err(&client->dev,
"Failed to create sysfs attribute group: %d\n", error);
return error;
}
- error = devm_add_action(&client->dev, mip4_sysfs_remove, ts);
- if (error) {
- mip4_sysfs_remove(ts);
- dev_err(&client->dev,
- "Failed to install sysfs remoce action: %d\n", error);
- return error;
- }
-
return 0;
}
diff --git a/drivers/input/touchscreen/mxs-lradc-ts.c b/drivers/input/touchscreen/mxs-lradc-ts.c
index 3707e927f770..c850b517854e 100644
--- a/drivers/input/touchscreen/mxs-lradc-ts.c
+++ b/drivers/input/touchscreen/mxs-lradc-ts.c
@@ -584,7 +584,7 @@ static void mxs_lradc_ts_hw_init(struct mxs_lradc_ts *ts)
static int mxs_lradc_ts_register(struct mxs_lradc_ts *ts)
{
- struct input_dev *input = ts->ts_input;
+ struct input_dev *input;
struct device *dev = ts->dev;
input = devm_input_allocate_device(dev);
diff --git a/drivers/input/touchscreen/raydium_i2c_ts.c b/drivers/input/touchscreen/raydium_i2c_ts.c
index 4f1d3fd5d412..100538d64fff 100644
--- a/drivers/input/touchscreen/raydium_i2c_ts.c
+++ b/drivers/input/touchscreen/raydium_i2c_ts.c
@@ -943,13 +943,6 @@ static const struct attribute_group raydium_i2c_attribute_group = {
.attrs = raydium_i2c_attributes,
};
-static void raydium_i2c_remove_sysfs_group(void *_data)
-{
- struct raydium_data *ts = _data;
-
- sysfs_remove_group(&ts->client->dev.kobj, &raydium_i2c_attribute_group);
-}
-
static int raydium_i2c_power_on(struct raydium_data *ts)
{
int error;
@@ -1120,7 +1113,7 @@ static int raydium_i2c_probe(struct i2c_client *client,
return error;
}
- error = sysfs_create_group(&client->dev.kobj,
+ error = devm_device_add_group(&client->dev,
&raydium_i2c_attribute_group);
if (error) {
dev_err(&client->dev, "failed to create sysfs attributes: %d\n",
@@ -1128,15 +1121,6 @@ static int raydium_i2c_probe(struct i2c_client *client,
return error;
}
- error = devm_add_action(&client->dev,
- raydium_i2c_remove_sysfs_group, ts);
- if (error) {
- raydium_i2c_remove_sysfs_group(ts);
- dev_err(&client->dev,
- "Failed to add sysfs cleanup action: %d\n", error);
- return error;
- }
-
return 0;
}
diff --git a/drivers/input/touchscreen/rohm_bu21023.c b/drivers/input/touchscreen/rohm_bu21023.c
index eeaf6ff03597..bda0500c9b57 100644
--- a/drivers/input/touchscreen/rohm_bu21023.c
+++ b/drivers/input/touchscreen/rohm_bu21023.c
@@ -1103,13 +1103,6 @@ static void rohm_ts_close(struct input_dev *input_dev)
ts->initialized = false;
}
-static void rohm_ts_remove_sysfs_group(void *_dev)
-{
- struct device *dev = _dev;
-
- sysfs_remove_group(&dev->kobj, &rohm_ts_attr_group);
-}
-
static int rohm_bu21023_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -1180,20 +1173,12 @@ static int rohm_bu21023_i2c_probe(struct i2c_client *client,
return error;
}
- error = sysfs_create_group(&dev->kobj, &rohm_ts_attr_group);
+ error = devm_device_add_group(dev, &rohm_ts_attr_group);
if (error) {
dev_err(dev, "failed to create sysfs group: %d\n", error);
return error;
}
- error = devm_add_action(dev, rohm_ts_remove_sysfs_group, dev);
- if (error) {
- rohm_ts_remove_sysfs_group(dev);
- dev_err(dev, "Failed to add sysfs cleanup action: %d\n",
- error);
- return error;
- }
-
return error;
}
diff --git a/drivers/input/touchscreen/s6sy761.c b/drivers/input/touchscreen/s6sy761.c
new file mode 100644
index 000000000000..26b1cb8a88ec
--- /dev/null
+++ b/drivers/input/touchscreen/s6sy761.c
@@ -0,0 +1,559 @@
+/*
+ * Copyright (c) 2017 Samsung Electronics Co., Ltd.
+ * Author: Andi Shyti <andi.shyti@samsung.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.
+ *
+ * Samsung S6SY761 Touchscreen device driver
+ */
+
+#include <asm/unaligned.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/input/mt.h>
+#include <linux/input/touchscreen.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
+
+/* commands */
+#define S6SY761_SENSE_ON 0x10
+#define S6SY761_SENSE_OFF 0x11
+#define S6SY761_TOUCH_FUNCTION 0x30 /* R/W for get/set */
+#define S6SY761_FIRMWARE_INTEGRITY 0x21
+#define S6SY761_PANEL_INFO 0x23
+#define S6SY761_DEVICE_ID 0x52
+#define S6SY761_BOOT_STATUS 0x55
+#define S6SY761_READ_ONE_EVENT 0x60
+#define S6SY761_READ_ALL_EVENT 0x61
+#define S6SY761_CLEAR_EVENT_STACK 0x62
+#define S6SY761_APPLICATION_MODE 0xe4
+
+/* events */
+#define S6SY761_EVENT_INFO 0x02
+#define S6SY761_EVENT_VENDOR_INFO 0x07
+
+/* info */
+#define S6SY761_INFO_BOOT_COMPLETE 0x00
+
+/* firmware status */
+#define S6SY761_FW_OK 0x80
+
+/*
+ * the functionalities are put as a reference
+ * as in the device I am using none of them
+ * works therefore not used in this driver yet.
+ */
+/* touchscreen functionalities */
+#define S6SY761_MASK_TOUCH BIT(0)
+#define S6SY761_MASK_HOVER BIT(1)
+#define S6SY761_MASK_COVER BIT(2)
+#define S6SY761_MASK_GLOVE BIT(3)
+#define S6SY761_MASK_STYLUS BIT(4)
+#define S6SY761_MASK_PALM BIT(5)
+#define S6SY761_MASK_WET BIT(6)
+#define S6SY761_MASK_PROXIMITY BIT(7)
+
+/* boot status (BS) */
+#define S6SY761_BS_BOOT_LOADER 0x10
+#define S6SY761_BS_APPLICATION 0x20
+
+/* event id */
+#define S6SY761_EVENT_ID_COORDINATE 0x00
+#define S6SY761_EVENT_ID_STATUS 0x01
+
+/* event register masks */
+#define S6SY761_MASK_TOUCH_STATE 0xc0 /* byte 0 */
+#define S6SY761_MASK_TID 0x3c
+#define S6SY761_MASK_EID 0x03
+#define S6SY761_MASK_X 0xf0 /* byte 3 */
+#define S6SY761_MASK_Y 0x0f
+#define S6SY761_MASK_Z 0x3f /* byte 6 */
+#define S6SY761_MASK_LEFT_EVENTS 0x3f /* byte 7 */
+#define S6SY761_MASK_TOUCH_TYPE 0xc0 /* MSB in byte 6, LSB in byte 7 */
+
+/* event touch state values */
+#define S6SY761_TS_NONE 0x00
+#define S6SY761_TS_PRESS 0x01
+#define S6SY761_TS_MOVE 0x02
+#define S6SY761_TS_RELEASE 0x03
+
+/* application modes */
+#define S6SY761_APP_NORMAL 0x0
+#define S6SY761_APP_LOW_POWER 0x1
+#define S6SY761_APP_TEST 0x2
+#define S6SY761_APP_FLASH 0x3
+#define S6SY761_APP_SLEEP 0x4
+
+#define S6SY761_EVENT_SIZE 8
+#define S6SY761_EVENT_COUNT 32
+#define S6SY761_DEVID_SIZE 3
+#define S6SY761_PANEL_ID_SIZE 11
+#define S6SY761_TS_STATUS_SIZE 5
+#define S6SY761_MAX_FINGERS 10
+
+#define S6SY761_DEV_NAME "s6sy761"
+
+enum s6sy761_regulators {
+ S6SY761_REGULATOR_VDD,
+ S6SY761_REGULATOR_AVDD,
+};
+
+struct s6sy761_data {
+ struct i2c_client *client;
+ struct regulator_bulk_data regulators[2];
+ struct input_dev *input;
+ struct touchscreen_properties prop;
+
+ u8 data[S6SY761_EVENT_SIZE * S6SY761_EVENT_COUNT];
+
+ u16 devid;
+ u8 tx_channel;
+};
+
+/*
+ * We can't simply use i2c_smbus_read_i2c_block_data because we
+ * need to read more than 255 bytes
+ */
+static int s6sy761_read_events(struct s6sy761_data *sdata, u16 n_events)
+{
+ u8 cmd = S6SY761_READ_ALL_EVENT;
+ struct i2c_msg msgs[2] = {
+ {
+ .addr = sdata->client->addr,
+ .len = 1,
+ .buf = &cmd,
+ },
+ {
+ .addr = sdata->client->addr,
+ .flags = I2C_M_RD,
+ .len = (n_events * S6SY761_EVENT_SIZE),
+ .buf = sdata->data + S6SY761_EVENT_SIZE,
+ },
+ };
+ int ret;
+
+ ret = i2c_transfer(sdata->client->adapter, msgs, ARRAY_SIZE(msgs));
+ if (ret < 0)
+ return ret;
+
+ return ret == ARRAY_SIZE(msgs) ? 0 : -EIO;
+}
+
+static void s6sy761_report_coordinates(struct s6sy761_data *sdata,
+ u8 *event, u8 tid)
+{
+ u8 major = event[4];
+ u8 minor = event[5];
+ u8 z = event[6] & S6SY761_MASK_Z;
+ u16 x = (event[1] << 3) | ((event[3] & S6SY761_MASK_X) >> 4);
+ u16 y = (event[2] << 3) | (event[3] & S6SY761_MASK_Y);
+
+ input_mt_slot(sdata->input, tid);
+
+ input_mt_report_slot_state(sdata->input, MT_TOOL_FINGER, true);
+ input_report_abs(sdata->input, ABS_MT_POSITION_X, x);
+ input_report_abs(sdata->input, ABS_MT_POSITION_Y, y);
+ input_report_abs(sdata->input, ABS_MT_TOUCH_MAJOR, major);
+ input_report_abs(sdata->input, ABS_MT_TOUCH_MINOR, minor);
+ input_report_abs(sdata->input, ABS_MT_PRESSURE, z);
+
+ input_sync(sdata->input);
+}
+
+static void s6sy761_report_release(struct s6sy761_data *sdata,
+ u8 *event, u8 tid)
+{
+ input_mt_slot(sdata->input, tid);
+ input_mt_report_slot_state(sdata->input, MT_TOOL_FINGER, false);
+
+ input_sync(sdata->input);
+}
+
+static void s6sy761_handle_coordinates(struct s6sy761_data *sdata, u8 *event)
+{
+ u8 tid;
+ u8 touch_state;
+
+ if (unlikely(!(event[0] & S6SY761_MASK_TID)))
+ return;
+
+ tid = ((event[0] & S6SY761_MASK_TID) >> 2) - 1;
+ touch_state = (event[0] & S6SY761_MASK_TOUCH_STATE) >> 6;
+
+ switch (touch_state) {
+
+ case S6SY761_TS_NONE:
+ break;
+ case S6SY761_TS_RELEASE:
+ s6sy761_report_release(sdata, event, tid);
+ break;
+ case S6SY761_TS_PRESS:
+ case S6SY761_TS_MOVE:
+ s6sy761_report_coordinates(sdata, event, tid);
+ break;
+ }
+}
+
+static void s6sy761_handle_events(struct s6sy761_data *sdata, u8 n_events)
+{
+ int i;
+
+ for (i = 0; i < n_events; i++) {
+ u8 *event = &sdata->data[i * S6SY761_EVENT_SIZE];
+ u8 event_id = event[0] & S6SY761_MASK_EID;
+
+ if (!event[0])
+ return;
+
+ switch (event_id) {
+
+ case S6SY761_EVENT_ID_COORDINATE:
+ s6sy761_handle_coordinates(sdata, event);
+ break;
+
+ case S6SY761_EVENT_ID_STATUS:
+ break;
+
+ default:
+ break;
+ }
+ }
+}
+
+static irqreturn_t s6sy761_irq_handler(int irq, void *dev)
+{
+ struct s6sy761_data *sdata = dev;
+ int ret;
+ u8 n_events;
+
+ ret = i2c_smbus_read_i2c_block_data(sdata->client,
+ S6SY761_READ_ONE_EVENT,
+ S6SY761_EVENT_SIZE,
+ sdata->data);
+ if (ret < 0) {
+ dev_err(&sdata->client->dev, "failed to read events\n");
+ return IRQ_HANDLED;
+ }
+
+ if (!sdata->data[0])
+ return IRQ_HANDLED;
+
+ n_events = sdata->data[7] & S6SY761_MASK_LEFT_EVENTS;
+ if (unlikely(n_events > S6SY761_EVENT_COUNT - 1))
+ return IRQ_HANDLED;
+
+ if (n_events) {
+ ret = s6sy761_read_events(sdata, n_events);
+ if (ret < 0) {
+ dev_err(&sdata->client->dev, "failed to read events\n");
+ return IRQ_HANDLED;
+ }
+ }
+
+ s6sy761_handle_events(sdata, n_events + 1);
+
+ return IRQ_HANDLED;
+}
+
+static int s6sy761_input_open(struct input_dev *dev)
+{
+ struct s6sy761_data *sdata = input_get_drvdata(dev);
+
+ return i2c_smbus_write_byte(sdata->client, S6SY761_SENSE_ON);
+}
+
+static void s6sy761_input_close(struct input_dev *dev)
+{
+ struct s6sy761_data *sdata = input_get_drvdata(dev);
+ int ret;
+
+ ret = i2c_smbus_write_byte(sdata->client, S6SY761_SENSE_OFF);
+ if (ret)
+ dev_err(&sdata->client->dev, "failed to turn off sensing\n");
+}
+
+static ssize_t s6sy761_sysfs_devid(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct s6sy761_data *sdata = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%#x\n", sdata->devid);
+}
+
+static DEVICE_ATTR(devid, 0444, s6sy761_sysfs_devid, NULL);
+
+static struct attribute *s6sy761_sysfs_attrs[] = {
+ &dev_attr_devid.attr,
+ NULL
+};
+
+static struct attribute_group s6sy761_attribute_group = {
+ .attrs = s6sy761_sysfs_attrs
+};
+
+static int s6sy761_power_on(struct s6sy761_data *sdata)
+{
+ u8 buffer[S6SY761_EVENT_SIZE];
+ u8 event;
+ int ret;
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(sdata->regulators),
+ sdata->regulators);
+ if (ret)
+ return ret;
+
+ msleep(140);
+
+ /* double check whether the touch is functional */
+ ret = i2c_smbus_read_i2c_block_data(sdata->client,
+ S6SY761_READ_ONE_EVENT,
+ S6SY761_EVENT_SIZE,
+ buffer);
+ if (ret < 0)
+ return ret;
+
+ event = (buffer[0] >> 2) & 0xf;
+
+ if ((event != S6SY761_EVENT_INFO &&
+ event != S6SY761_EVENT_VENDOR_INFO) ||
+ buffer[1] != S6SY761_INFO_BOOT_COMPLETE) {
+ return -ENODEV;
+ }
+
+ ret = i2c_smbus_read_byte_data(sdata->client, S6SY761_BOOT_STATUS);
+ if (ret < 0)
+ return ret;
+
+ /* for some reasons the device might be stuck in the bootloader */
+ if (ret != S6SY761_BS_APPLICATION)
+ return -ENODEV;
+
+ /* enable touch functionality */
+ ret = i2c_smbus_write_word_data(sdata->client,
+ S6SY761_TOUCH_FUNCTION,
+ S6SY761_MASK_TOUCH);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int s6sy761_hw_init(struct s6sy761_data *sdata,
+ unsigned int *max_x, unsigned int *max_y)
+{
+ u8 buffer[S6SY761_PANEL_ID_SIZE]; /* larger read size */
+ int ret;
+
+ ret = s6sy761_power_on(sdata);
+ if (ret)
+ return ret;
+
+ ret = i2c_smbus_read_i2c_block_data(sdata->client,
+ S6SY761_DEVICE_ID,
+ S6SY761_DEVID_SIZE,
+ buffer);
+ if (ret < 0)
+ return ret;
+
+ sdata->devid = get_unaligned_be16(buffer + 1);
+
+ ret = i2c_smbus_read_i2c_block_data(sdata->client,
+ S6SY761_PANEL_INFO,
+ S6SY761_PANEL_ID_SIZE,
+ buffer);
+ if (ret < 0)
+ return ret;
+
+ *max_x = get_unaligned_be16(buffer);
+ *max_y = get_unaligned_be16(buffer + 2);
+
+ /* if no tx channels defined, at least keep one */
+ sdata->tx_channel = max_t(u8, buffer[8], 1);
+
+ ret = i2c_smbus_read_byte_data(sdata->client,
+ S6SY761_FIRMWARE_INTEGRITY);
+ if (ret < 0)
+ return ret;
+ else if (ret != S6SY761_FW_OK)
+ return -ENODEV;
+
+ return 0;
+}
+
+static void s6sy761_power_off(void *data)
+{
+ struct s6sy761_data *sdata = data;
+
+ disable_irq(sdata->client->irq);
+ regulator_bulk_disable(ARRAY_SIZE(sdata->regulators),
+ sdata->regulators);
+}
+
+static int s6sy761_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct s6sy761_data *sdata;
+ unsigned int max_x, max_y;
+ int err;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C |
+ I2C_FUNC_SMBUS_BYTE_DATA |
+ I2C_FUNC_SMBUS_I2C_BLOCK))
+ return -ENODEV;
+
+ sdata = devm_kzalloc(&client->dev, sizeof(*sdata), GFP_KERNEL);
+ if (!sdata)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, sdata);
+ sdata->client = client;
+
+ sdata->regulators[S6SY761_REGULATOR_VDD].supply = "vdd";
+ sdata->regulators[S6SY761_REGULATOR_AVDD].supply = "avdd";
+ err = devm_regulator_bulk_get(&client->dev,
+ ARRAY_SIZE(sdata->regulators),
+ sdata->regulators);
+ if (err)
+ return err;
+
+ err = devm_add_action_or_reset(&client->dev, s6sy761_power_off, sdata);
+ if (err)
+ return err;
+
+ err = s6sy761_hw_init(sdata, &max_x, &max_y);
+ if (err)
+ return err;
+
+ sdata->input = devm_input_allocate_device(&client->dev);
+ if (!sdata->input)
+ return -ENOMEM;
+
+ sdata->input->name = S6SY761_DEV_NAME;
+ sdata->input->id.bustype = BUS_I2C;
+ sdata->input->open = s6sy761_input_open;
+ sdata->input->close = s6sy761_input_close;
+
+ input_set_abs_params(sdata->input, ABS_MT_POSITION_X, 0, max_x, 0, 0);
+ input_set_abs_params(sdata->input, ABS_MT_POSITION_Y, 0, max_y, 0, 0);
+ input_set_abs_params(sdata->input, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);
+ input_set_abs_params(sdata->input, ABS_MT_TOUCH_MINOR, 0, 255, 0, 0);
+ input_set_abs_params(sdata->input, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);
+ input_set_abs_params(sdata->input, ABS_MT_TOUCH_MINOR, 0, 255, 0, 0);
+ input_set_abs_params(sdata->input, ABS_MT_PRESSURE, 0, 255, 0, 0);
+
+ touchscreen_parse_properties(sdata->input, true, &sdata->prop);
+
+ if (!input_abs_get_max(sdata->input, ABS_X) ||
+ !input_abs_get_max(sdata->input, ABS_Y)) {
+ dev_warn(&client->dev, "the axis have not been set\n");
+ }
+
+ err = input_mt_init_slots(sdata->input, sdata->tx_channel,
+ INPUT_MT_DIRECT);
+ if (err)
+ return err;
+
+ input_set_drvdata(sdata->input, sdata);
+
+ err = input_register_device(sdata->input);
+ if (err)
+ return err;
+
+ err = devm_request_threaded_irq(&client->dev, client->irq, NULL,
+ s6sy761_irq_handler,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ "s6sy761_irq", sdata);
+ if (err)
+ return err;
+
+ err = devm_device_add_group(&client->dev, &s6sy761_attribute_group);
+ if (err)
+ return err;
+
+ pm_runtime_enable(&client->dev);
+
+ return 0;
+}
+
+static int s6sy761_remove(struct i2c_client *client)
+{
+ pm_runtime_disable(&client->dev);
+
+ return 0;
+}
+
+static int __maybe_unused s6sy761_runtime_suspend(struct device *dev)
+{
+ struct s6sy761_data *sdata = dev_get_drvdata(dev);
+
+ return i2c_smbus_write_byte_data(sdata->client,
+ S6SY761_APPLICATION_MODE, S6SY761_APP_SLEEP);
+}
+
+static int __maybe_unused s6sy761_runtime_resume(struct device *dev)
+{
+ struct s6sy761_data *sdata = dev_get_drvdata(dev);
+
+ return i2c_smbus_write_byte_data(sdata->client,
+ S6SY761_APPLICATION_MODE, S6SY761_APP_NORMAL);
+}
+
+static int __maybe_unused s6sy761_suspend(struct device *dev)
+{
+ struct s6sy761_data *sdata = dev_get_drvdata(dev);
+
+ s6sy761_power_off(sdata);
+
+ return 0;
+}
+
+static int __maybe_unused s6sy761_resume(struct device *dev)
+{
+ struct s6sy761_data *sdata = dev_get_drvdata(dev);
+
+ enable_irq(sdata->client->irq);
+
+ return s6sy761_power_on(sdata);
+}
+
+static const struct dev_pm_ops s6sy761_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(s6sy761_suspend, s6sy761_resume)
+ SET_RUNTIME_PM_OPS(s6sy761_runtime_suspend,
+ s6sy761_runtime_resume, NULL)
+};
+
+#ifdef CONFIG_OF
+static const struct of_device_id s6sy761_of_match[] = {
+ { .compatible = "samsung,s6sy761", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, s6sy761_of_match);
+#endif
+
+static const struct i2c_device_id s6sy761_id[] = {
+ { "s6sy761", 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(i2c, s6sy761_id);
+
+static struct i2c_driver s6sy761_driver = {
+ .driver = {
+ .name = S6SY761_DEV_NAME,
+ .of_match_table = of_match_ptr(s6sy761_of_match),
+ .pm = &s6sy761_pm_ops,
+ },
+ .probe = s6sy761_probe,
+ .remove = s6sy761_remove,
+ .id_table = s6sy761_id,
+};
+
+module_i2c_driver(s6sy761_driver);
+
+MODULE_AUTHOR("Andi Shyti <andi.shyti@samsung.com>");
+MODULE_DESCRIPTION("Samsung S6SY761 Touch Screen");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/touchscreen/st1232.c b/drivers/input/touchscreen/st1232.c
index be5615c6bf8f..d5dfa4053bbf 100644
--- a/drivers/input/touchscreen/st1232.c
+++ b/drivers/input/touchscreen/st1232.c
@@ -29,7 +29,6 @@
#include <linux/pm_qos.h>
#include <linux/slab.h>
#include <linux/types.h>
-#include <linux/platform_data/st1232_pdata.h>
#define ST1232_TS_NAME "st1232-ts"
@@ -152,10 +151,9 @@ static void st1232_ts_power(struct st1232_ts_data *ts, bool poweron)
}
static int st1232_ts_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+ const struct i2c_device_id *id)
{
struct st1232_ts_data *ts;
- struct st1232_pdata *pdata = dev_get_platdata(&client->dev);
struct input_dev *input_dev;
int error;
@@ -180,13 +178,7 @@ static int st1232_ts_probe(struct i2c_client *client,
ts->client = client;
ts->input_dev = input_dev;
- if (pdata)
- ts->reset_gpio = pdata->reset_gpio;
- else if (client->dev.of_node)
- ts->reset_gpio = of_get_gpio(client->dev.of_node, 0);
- else
- ts->reset_gpio = -ENODEV;
-
+ ts->reset_gpio = of_get_gpio(client->dev.of_node, 0);
if (gpio_is_valid(ts->reset_gpio)) {
error = devm_gpio_request(&client->dev, ts->reset_gpio, NULL);
if (error) {
@@ -281,13 +273,11 @@ static const struct i2c_device_id st1232_ts_id[] = {
};
MODULE_DEVICE_TABLE(i2c, st1232_ts_id);
-#ifdef CONFIG_OF
static const struct of_device_id st1232_ts_dt_ids[] = {
{ .compatible = "sitronix,st1232", },
{ }
};
MODULE_DEVICE_TABLE(of, st1232_ts_dt_ids);
-#endif
static struct i2c_driver st1232_ts_driver = {
.probe = st1232_ts_probe,
@@ -295,7 +285,7 @@ static struct i2c_driver st1232_ts_driver = {
.id_table = st1232_ts_id,
.driver = {
.name = ST1232_TS_NAME,
- .of_match_table = of_match_ptr(st1232_ts_dt_ids),
+ .of_match_table = st1232_ts_dt_ids,
.pm = &st1232_ts_pm_ops,
},
};
diff --git a/drivers/input/touchscreen/stmfts.c b/drivers/input/touchscreen/stmfts.c
index 8c6c6178ec12..c12d01899939 100644
--- a/drivers/input/touchscreen/stmfts.c
+++ b/drivers/input/touchscreen/stmfts.c
@@ -725,8 +725,7 @@ static int stmfts_probe(struct i2c_client *client,
}
}
- err = sysfs_create_group(&sdata->client->dev.kobj,
- &stmfts_attribute_group);
+ err = devm_device_add_group(&client->dev, &stmfts_attribute_group);
if (err)
return err;
@@ -738,7 +737,6 @@ static int stmfts_probe(struct i2c_client *client,
static int stmfts_remove(struct i2c_client *client)
{
pm_runtime_disable(&client->dev);
- sysfs_remove_group(&client->dev.kobj, &stmfts_attribute_group);
return 0;
}
diff --git a/drivers/input/touchscreen/tsc200x-core.c b/drivers/input/touchscreen/tsc200x-core.c
index abf27578beb1..e0fde590df8e 100644
--- a/drivers/input/touchscreen/tsc200x-core.c
+++ b/drivers/input/touchscreen/tsc200x-core.c
@@ -202,9 +202,9 @@ out:
return IRQ_HANDLED;
}
-static void tsc200x_penup_timer(unsigned long data)
+static void tsc200x_penup_timer(struct timer_list *t)
{
- struct tsc200x *ts = (struct tsc200x *)data;
+ struct tsc200x *ts = from_timer(ts, t, penup_timer);
unsigned long flags;
spin_lock_irqsave(&ts->lock, flags);
@@ -506,7 +506,7 @@ int tsc200x_probe(struct device *dev, int irq, const struct input_id *tsc_id,
mutex_init(&ts->mutex);
spin_lock_init(&ts->lock);
- setup_timer(&ts->penup_timer, tsc200x_penup_timer, (unsigned long)ts);
+ timer_setup(&ts->penup_timer, tsc200x_penup_timer, 0);
INIT_DELAYED_WORK(&ts->esd_work, tsc200x_esd_work);
diff --git a/drivers/input/touchscreen/tsc200x-core.h b/drivers/input/touchscreen/tsc200x-core.h
index 49a63a3c6840..a43c08ccfd3d 100644
--- a/drivers/input/touchscreen/tsc200x-core.h
+++ b/drivers/input/touchscreen/tsc200x-core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _TSC200X_CORE_H
#define _TSC200X_CORE_H
diff --git a/drivers/input/touchscreen/w90p910_ts.c b/drivers/input/touchscreen/w90p910_ts.c
index da6004e97753..638c1d78ca3a 100644
--- a/drivers/input/touchscreen/w90p910_ts.c
+++ b/drivers/input/touchscreen/w90p910_ts.c
@@ -146,9 +146,9 @@ static irqreturn_t w90p910_ts_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static void w90p910_check_pen_up(unsigned long data)
+static void w90p910_check_pen_up(struct timer_list *t)
{
- struct w90p910_ts *w90p910_ts = (struct w90p910_ts *) data;
+ struct w90p910_ts *w90p910_ts = from_timer(w90p910_ts, t, timer);
unsigned long flags;
spin_lock_irqsave(&w90p910_ts->lock, flags);
@@ -232,8 +232,7 @@ static int w90x900ts_probe(struct platform_device *pdev)
w90p910_ts->input = input_dev;
w90p910_ts->state = TS_IDLE;
spin_lock_init(&w90p910_ts->lock);
- setup_timer(&w90p910_ts->timer, w90p910_check_pen_up,
- (unsigned long)w90p910_ts);
+ timer_setup(&w90p910_ts->timer, w90p910_check_pen_up, 0);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
diff --git a/drivers/input/touchscreen/wdt87xx_i2c.c b/drivers/input/touchscreen/wdt87xx_i2c.c
index a9132603ab34..d351efd18f89 100644
--- a/drivers/input/touchscreen/wdt87xx_i2c.c
+++ b/drivers/input/touchscreen/wdt87xx_i2c.c
@@ -1106,7 +1106,7 @@ static int wdt87xx_ts_probe(struct i2c_client *client,
return error;
}
- error = sysfs_create_group(&client->dev.kobj, &wdt87xx_attr_group);
+ error = devm_device_add_group(&client->dev, &wdt87xx_attr_group);
if (error) {
dev_err(&client->dev, "create sysfs failed: %d\n", error);
return error;
@@ -1115,13 +1115,6 @@ static int wdt87xx_ts_probe(struct i2c_client *client,
return 0;
}
-static int wdt87xx_ts_remove(struct i2c_client *client)
-{
- sysfs_remove_group(&client->dev.kobj, &wdt87xx_attr_group);
-
- return 0;
-}
-
static int __maybe_unused wdt87xx_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
@@ -1179,7 +1172,6 @@ MODULE_DEVICE_TABLE(acpi, wdt87xx_acpi_id);
static struct i2c_driver wdt87xx_driver = {
.probe = wdt87xx_ts_probe,
- .remove = wdt87xx_ts_remove,
.id_table = wdt87xx_dev_id,
.driver = {
.name = WDT87XX_NAME,

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