/*
* Copyright (C) 2012 Simon Budig, <simon.budig@kernelconcepts.de>
+ * Daniel Wagener <daniel.wagener@kernelconcepts.de> (M09 firmware support)
+ * Lothar Waßmann <LW@KARO-electronics.de> (DT support)
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
#include <linux/debugfs.h>
#include <linux/slab.h>
#include <linux/gpio.h>
+#include <linux/of_gpio.h>
#include <linux/input/mt.h>
#include <linux/input/edt-ft5x06.h>
#define WORK_REGISTER_NUM_X 0x33
#define WORK_REGISTER_NUM_Y 0x34
+#define M09_REGISTER_THRESHOLD 0x80
+#define M09_REGISTER_GAIN 0x92
+#define M09_REGISTER_OFFSET 0x93
+#define M09_REGISTER_NUM_X 0x94
+#define M09_REGISTER_NUM_Y 0x95
+
+#define NO_REGISTER 0xff
+
#define WORK_REGISTER_OPMODE 0x3c
#define FACTORY_REGISTER_OPMODE 0x01
#define EDT_RAW_DATA_RETRIES 100
#define EDT_RAW_DATA_DELAY 1 /* msec */
+enum edt_ver {
+ M06,
+ M09,
+};
+
+struct edt_reg_addr {
+ int reg_threshold;
+ int reg_report_rate;
+ int reg_gain;
+ int reg_offset;
+ int reg_num_x;
+ int reg_num_y;
+};
+
struct edt_ft5x06_ts_data {
struct i2c_client *client;
struct input_dev *input;
u16 num_x;
u16 num_y;
+ int reset_pin;
+ int irq_pin;
+ int wake_pin;
+
#if defined(CONFIG_DEBUG_FS)
struct dentry *debug_dir;
u8 *raw_buffer;
int report_rate;
char name[EDT_NAME_LEN];
+
+ struct edt_reg_addr reg_addr;
+ enum edt_ver version;
};
static int edt_ft5x06_ts_readwrite(struct i2c_client *client,
{
struct edt_ft5x06_ts_data *tsdata = dev_id;
struct device *dev = &tsdata->client->dev;
- u8 cmd = 0xf9;
- u8 rdbuf[26];
+ u8 cmd;
+ u8 rdbuf[29];
int i, type, x, y, id;
+ int offset, tplen, datalen;
int error;
+ switch (tsdata->version) {
+ case 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 */
+ datalen = 26; /* how much bytes to listen for */
+ break;
+
+ case M09:
+ cmd = 0x02;
+ offset = 1;
+ tplen = 6;
+ datalen = 29;
+ break;
+
+ default:
+ goto out;
+ }
+
memset(rdbuf, 0, sizeof(rdbuf));
error = edt_ft5x06_ts_readwrite(tsdata->client,
sizeof(cmd), &cmd,
- sizeof(rdbuf), rdbuf);
+ datalen, rdbuf);
if (error) {
dev_err_ratelimited(dev, "Unable to fetch data, error: %d\n",
error);
goto out;
}
- if (rdbuf[0] != 0xaa || rdbuf[1] != 0xaa || rdbuf[2] != 26) {
- dev_err_ratelimited(dev, "Unexpected header: %02x%02x%02x!\n",
- rdbuf[0], rdbuf[1], rdbuf[2]);
- goto out;
- }
+ /* M09 does not send header or CRC */
+ if (tsdata->version == M06) {
+ if (rdbuf[0] != 0xaa || rdbuf[1] != 0xaa ||
+ rdbuf[2] != datalen) {
+ dev_err_ratelimited(dev,
+ "Unexpected header: %02x%02x%02x!\n",
+ rdbuf[0], rdbuf[1], rdbuf[2]);
+ goto out;
+ }
- if (!edt_ft5x06_ts_check_crc(tsdata, rdbuf, 26))
- goto out;
+ if (!edt_ft5x06_ts_check_crc(tsdata, rdbuf, datalen))
+ goto out;
+ }
for (i = 0; i < MAX_SUPPORT_POINTS; i++) {
- u8 *buf = &rdbuf[i * 4 + 5];
+ u8 *buf = &rdbuf[i * tplen + offset];
bool down;
type = buf[0] >> 6;
if (type == TOUCH_EVENT_RESERVED)
continue;
+ /* M06 sometimes sends bogus coordinates in TOUCH_DOWN */
+ if (tsdata->version == M06 && type == TOUCH_EVENT_DOWN)
+ continue;
+
x = ((buf[0] << 8) | buf[1]) & 0x0fff;
y = ((buf[2] << 8) | buf[3]) & 0x0fff;
id = (buf[2] >> 4) & 0x0f;
{
u8 wrbuf[4];
- 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);
+ switch (tsdata->version) {
+ case M06:
+ wrbuf[0] = tsdata->factory_mode ? 0xf3 : 0xfc;
+ wrbuf[1] = tsdata->factory_mode ? addr & 0x7f : addr & 0x3f;
+ 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:
+ wrbuf[0] = addr;
+ wrbuf[1] = value;
+
+ return edt_ft5x06_ts_readwrite(tsdata->client, 3,
+ wrbuf, 0, NULL);
+
+ default:
+ return -EINVAL;
+ }
}
static int edt_ft5x06_register_read(struct edt_ft5x06_ts_data *tsdata,
u8 wrbuf[2], rdbuf[2];
int error;
- wrbuf[0] = tsdata->factory_mode ? 0xf3 : 0xfc;
- wrbuf[1] = tsdata->factory_mode ? addr & 0x7f : addr & 0x3f;
- wrbuf[1] |= tsdata->factory_mode ? 0x80 : 0x40;
+ switch (tsdata->version) {
+ case M06:
+ wrbuf[0] = tsdata->factory_mode ? 0xf3 : 0xfc;
+ wrbuf[1] = tsdata->factory_mode ? addr & 0x7f : addr & 0x3f;
+ wrbuf[1] |= tsdata->factory_mode ? 0x80 : 0x40;
- error = edt_ft5x06_ts_readwrite(tsdata->client, 2, wrbuf, 2, rdbuf);
- if (error)
- return error;
+ error = edt_ft5x06_ts_readwrite(tsdata->client, 2, wrbuf, 2,
+ rdbuf);
+ if (error)
+ return error;
- if ((wrbuf[0] ^ wrbuf[1] ^ rdbuf[0]) != rdbuf[1]) {
- dev_err(&tsdata->client->dev,
- "crc error: 0x%02x expected, got 0x%02x\n",
- wrbuf[0] ^ wrbuf[1] ^ rdbuf[0], rdbuf[1]);
- return -EIO;
+ if ((wrbuf[0] ^ wrbuf[1] ^ rdbuf[0]) != rdbuf[1]) {
+ dev_err(&tsdata->client->dev,
+ "crc error: 0x%02x expected, got 0x%02x\n",
+ wrbuf[0] ^ wrbuf[1] ^ rdbuf[0],
+ rdbuf[1]);
+ return -EIO;
+ }
+ break;
+
+ case M09:
+ wrbuf[0] = addr;
+ error = edt_ft5x06_ts_readwrite(tsdata->client, 1,
+ wrbuf, 1, rdbuf);
+ if (error)
+ return error;
+ break;
+
+ default:
+ return -EINVAL;
}
return rdbuf[0];
size_t field_offset;
u8 limit_low;
u8 limit_high;
- u8 addr;
+ u8 addr_m06;
+ u8 addr_m09;
};
-#define EDT_ATTR(_field, _mode, _addr, _limit_low, _limit_high) \
+#define EDT_ATTR(_field, _mode, _addr_m06, _addr_m09, \
+ _limit_low, _limit_high) \
struct edt_ft5x06_attribute edt_ft5x06_attr_##_field = { \
.dattr = __ATTR(_field, _mode, \
edt_ft5x06_setting_show, \
edt_ft5x06_setting_store), \
- .field_offset = \
- offsetof(struct edt_ft5x06_ts_data, _field), \
+ .field_offset = offsetof(struct edt_ft5x06_ts_data, _field), \
+ .addr_m06 = _addr_m06, \
+ .addr_m09 = _addr_m09, \
.limit_low = _limit_low, \
.limit_high = _limit_high, \
- .addr = _addr, \
}
static ssize_t edt_ft5x06_setting_show(struct device *dev,
int val;
size_t count = 0;
int error = 0;
+ u8 addr;
mutex_lock(&tsdata->mutex);
goto out;
}
- val = edt_ft5x06_register_read(tsdata, attr->addr);
- if (val < 0) {
- error = val;
- dev_err(&tsdata->client->dev,
- "Failed to fetch attribute %s, error %d\n",
- dattr->attr.name, error);
+ switch (tsdata->version) {
+ case M06:
+ addr = attr->addr_m06;
+ break;
+
+ case M09:
+ addr = attr->addr_m09;
+ break;
+
+ default:
+ error = -ENODEV;
goto out;
}
+ if (addr != NO_REGISTER) {
+ val = edt_ft5x06_register_read(tsdata, addr);
+ if (val < 0) {
+ error = val;
+ dev_err(&tsdata->client->dev,
+ "Failed to fetch attribute %s, error %d\n",
+ dattr->attr.name, error);
+ goto out;
+ }
+ } else {
+ val = *field;
+ }
+
if (val != *field) {
dev_warn(&tsdata->client->dev,
"%s: read (%d) and stored value (%d) differ\n",
u8 *field = (u8 *)((char *)tsdata + attr->field_offset);
unsigned int val;
int error;
+ u8 addr;
mutex_lock(&tsdata->mutex);
goto out;
}
- error = edt_ft5x06_register_write(tsdata, attr->addr, val);
- if (error) {
- dev_err(&tsdata->client->dev,
- "Failed to update attribute %s, error: %d\n",
- dattr->attr.name, error);
+ switch (tsdata->version) {
+ case M06:
+ addr = attr->addr_m06;
+ break;
+
+ case M09:
+ addr = attr->addr_m09;
+ break;
+
+ default:
+ error = -ENODEV;
goto out;
}
+ if (addr != NO_REGISTER) {
+ error = edt_ft5x06_register_write(tsdata, addr, val);
+ if (error) {
+ dev_err(&tsdata->client->dev,
+ "Failed to update attribute %s, error: %d\n",
+ dattr->attr.name, error);
+ goto out;
+ }
+ }
*field = val;
out:
return error ?: count;
}
-static EDT_ATTR(gain, S_IWUSR | S_IRUGO, WORK_REGISTER_GAIN, 0, 31);
-static EDT_ATTR(offset, S_IWUSR | S_IRUGO, WORK_REGISTER_OFFSET, 0, 31);
-static EDT_ATTR(threshold, S_IWUSR | S_IRUGO,
- WORK_REGISTER_THRESHOLD, 20, 80);
-static EDT_ATTR(report_rate, S_IWUSR | S_IRUGO,
- WORK_REGISTER_REPORT_RATE, 3, 14);
+static EDT_ATTR(gain, S_IWUSR | S_IRUGO, WORK_REGISTER_GAIN,
+ M09_REGISTER_GAIN, 0, 31);
+static EDT_ATTR(offset, S_IWUSR | S_IRUGO, WORK_REGISTER_OFFSET,
+ M09_REGISTER_OFFSET, 0, 31);
+static EDT_ATTR(threshold, S_IWUSR | S_IRUGO, WORK_REGISTER_THRESHOLD,
+ M09_REGISTER_THRESHOLD, 20, 80);
+static EDT_ATTR(report_rate, S_IWUSR | S_IRUGO, WORK_REGISTER_REPORT_RATE,
+ NO_REGISTER, 3, 14);
static struct attribute *edt_ft5x06_attrs[] = {
&edt_ft5x06_attr_gain.dattr.attr,
}
/* mode register is 0x3c when in the work mode */
+ if (tsdata->version == M09)
+ goto m09_out;
+
error = edt_ft5x06_register_write(tsdata, WORK_REGISTER_OPMODE, 0x03);
if (error) {
dev_err(&client->dev,
enable_irq(client->irq);
return error;
+
+m09_out:
+ dev_err(&client->dev, "No factory mode support for M09\n");
+ return -EINVAL;
+
}
static int edt_ft5x06_work_mode(struct edt_ft5x06_ts_data *tsdata)
{
struct i2c_client *client = tsdata->client;
int retries = EDT_SWITCH_MODE_RETRIES;
+ struct edt_reg_addr *reg_addr = &tsdata->reg_addr;
int ret;
int error;
tsdata->raw_buffer = NULL;
/* restore parameters */
- edt_ft5x06_register_write(tsdata, WORK_REGISTER_THRESHOLD,
+ edt_ft5x06_register_write(tsdata, reg_addr->reg_threshold,
tsdata->threshold);
- edt_ft5x06_register_write(tsdata, WORK_REGISTER_GAIN,
+ edt_ft5x06_register_write(tsdata, reg_addr->reg_gain,
tsdata->gain);
- edt_ft5x06_register_write(tsdata, WORK_REGISTER_OFFSET,
+ edt_ft5x06_register_write(tsdata, reg_addr->reg_offset,
tsdata->offset);
- edt_ft5x06_register_write(tsdata, WORK_REGISTER_REPORT_RATE,
+ if (reg_addr->reg_report_rate)
+ edt_ft5x06_register_write(tsdata, reg_addr->reg_report_rate,
tsdata->report_rate);
enable_irq(client->irq);
static int edt_ft5x06_ts_reset(struct i2c_client *client,
- int reset_pin)
+ struct edt_ft5x06_ts_data *tsdata)
{
int error;
- if (gpio_is_valid(reset_pin)) {
+ if (gpio_is_valid(tsdata->wake_pin)) {
+ error = gpio_request_one(tsdata->wake_pin, GPIOF_OUT_INIT_LOW,
+ "edt-ft5x06 wake");
+ if (error) {
+ dev_err(&client->dev,
+ "Failed to request GPIO %d as wake pin, error %d\n",
+ tsdata->wake_pin, error);
+ return error;
+ }
+
+ mdelay(5);
+ gpio_set_value(tsdata->wake_pin, 1);
+ }
+ if (gpio_is_valid(tsdata->reset_pin)) {
/* this pulls reset down, enabling the low active reset */
- error = gpio_request_one(reset_pin, GPIOF_OUT_INIT_LOW,
+ error = gpio_request_one(tsdata->reset_pin, GPIOF_OUT_INIT_LOW,
"edt-ft5x06 reset");
if (error) {
dev_err(&client->dev,
"Failed to request GPIO %d as reset pin, error %d\n",
- reset_pin, error);
+ tsdata->reset_pin, error);
return error;
}
- mdelay(50);
- gpio_set_value(reset_pin, 1);
- mdelay(100);
+ mdelay(5);
+ gpio_set_value(tsdata->reset_pin, 1);
+ mdelay(300);
}
return 0;
}
static int edt_ft5x06_ts_identify(struct i2c_client *client,
- char *model_name,
- char *fw_version)
+ struct edt_ft5x06_ts_data *tsdata,
+ char *fw_version)
{
u8 rdbuf[EDT_NAME_LEN];
char *p;
int error;
+ char *model_name = tsdata->name;
+ /* see what we find if we assume it is a M06 *
+ * if we get less than EDT_NAME_LEN, we don't want
+ * to have garbage in there
+ */
+ memset(rdbuf, 0, sizeof(rdbuf));
error = edt_ft5x06_ts_readwrite(client, 1, "\xbb",
EDT_NAME_LEN - 1, rdbuf);
if (error)
return error;
- /* remove last '$' end marker */
- rdbuf[EDT_NAME_LEN - 1] = '\0';
- if (rdbuf[EDT_NAME_LEN - 2] == '$')
- rdbuf[EDT_NAME_LEN - 2] = '\0';
+ /* if we find something consistent, stay with that assumption
+ * at least M09 won't send 3 bytes here
+ */
+ if (!(strnicmp(rdbuf + 1, "EP0", 3))) {
+ tsdata->version = M06;
+
+ /* remove last '$' end marker */
+ rdbuf[EDT_NAME_LEN - 1] = '\0';
+ if (rdbuf[EDT_NAME_LEN - 2] == '$')
+ rdbuf[EDT_NAME_LEN - 2] = '\0';
+
+ /* look for Model/Version separator */
+ p = strchr(rdbuf, '*');
+ if (p)
+ *p++ = '\0';
+ strlcpy(model_name, rdbuf + 1, EDT_NAME_LEN);
+ strlcpy(fw_version, p ? p : "", EDT_NAME_LEN);
+ } else {
+ /* since there are only two versions around (M06, M09) */
+ tsdata->version = M09;
+
+ error = edt_ft5x06_ts_readwrite(client, 1, "\xA6",
+ 2, rdbuf);
+ if (error)
+ return error;
+
+ strlcpy(fw_version, rdbuf, 2);
- /* look for Model/Version separator */
- p = strchr(rdbuf, '*');
- if (p)
- *p++ = '\0';
+ error = edt_ft5x06_ts_readwrite(client, 1, "\xA8",
+ 1, rdbuf);
+ if (error)
+ return error;
- strlcpy(model_name, rdbuf + 1, EDT_NAME_LEN);
- strlcpy(fw_version, p ? p : "", EDT_NAME_LEN);
+ snprintf(model_name, EDT_NAME_LEN, "EP0%i%i0M09",
+ rdbuf[0] >> 4, rdbuf[0] & 0x0F);
+ }
return 0;
}
pdata->name <= edt_ft5x06_attr_##name.limit_high) \
edt_ft5x06_register_write(tsdata, reg, pdata->name)
+#define EDT_GET_PROP(name, reg) { \
+ const u32 *prop = of_get_property(np, #name, NULL); \
+ if (prop) \
+ edt_ft5x06_register_write(tsdata, reg, be32_to_cpu(*prop)); \
+}
+
+static void edt_ft5x06_ts_get_dt_defaults(struct device_node *np,
+ struct edt_ft5x06_ts_data *tsdata)
+{
+ struct edt_reg_addr *reg_addr = &tsdata->reg_addr;
+
+ EDT_GET_PROP(threshold, reg_addr->reg_threshold);
+ EDT_GET_PROP(gain, reg_addr->reg_gain);
+ EDT_GET_PROP(offset, reg_addr->reg_offset);
+}
+
static void
edt_ft5x06_ts_get_defaults(struct edt_ft5x06_ts_data *tsdata,
const struct edt_ft5x06_platform_data *pdata)
{
+ struct edt_reg_addr *reg_addr = &tsdata->reg_addr;
+
if (!pdata->use_parameters)
return;
/* pick up defaults from the platform data */
- EDT_ATTR_CHECKSET(threshold, WORK_REGISTER_THRESHOLD);
- EDT_ATTR_CHECKSET(gain, WORK_REGISTER_GAIN);
- EDT_ATTR_CHECKSET(offset, WORK_REGISTER_OFFSET);
- EDT_ATTR_CHECKSET(report_rate, WORK_REGISTER_REPORT_RATE);
+ EDT_ATTR_CHECKSET(threshold, reg_addr->reg_threshold);
+ EDT_ATTR_CHECKSET(gain, reg_addr->reg_gain);
+ EDT_ATTR_CHECKSET(offset, reg_addr->reg_offset);
+ if (reg_addr->reg_report_rate != NO_REGISTER)
+ EDT_ATTR_CHECKSET(report_rate, reg_addr->reg_report_rate);
}
static void
edt_ft5x06_ts_get_parameters(struct edt_ft5x06_ts_data *tsdata)
{
+ struct edt_reg_addr *reg_addr = &tsdata->reg_addr;
+
tsdata->threshold = edt_ft5x06_register_read(tsdata,
- WORK_REGISTER_THRESHOLD);
- tsdata->gain = edt_ft5x06_register_read(tsdata, WORK_REGISTER_GAIN);
- tsdata->offset = edt_ft5x06_register_read(tsdata, WORK_REGISTER_OFFSET);
- tsdata->report_rate = edt_ft5x06_register_read(tsdata,
- WORK_REGISTER_REPORT_RATE);
- tsdata->num_x = edt_ft5x06_register_read(tsdata, WORK_REGISTER_NUM_X);
- tsdata->num_y = edt_ft5x06_register_read(tsdata, WORK_REGISTER_NUM_Y);
+ reg_addr->reg_threshold);
+ tsdata->gain = edt_ft5x06_register_read(tsdata, reg_addr->reg_gain);
+ tsdata->offset = edt_ft5x06_register_read(tsdata, reg_addr->reg_offset);
+ 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);
+}
+
+static void
+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:
+ reg_addr->reg_threshold = WORK_REGISTER_THRESHOLD;
+ reg_addr->reg_report_rate = WORK_REGISTER_REPORT_RATE;
+ reg_addr->reg_gain = WORK_REGISTER_GAIN;
+ reg_addr->reg_offset = WORK_REGISTER_OFFSET;
+ reg_addr->reg_num_x = WORK_REGISTER_NUM_X;
+ reg_addr->reg_num_y = WORK_REGISTER_NUM_Y;
+ break;
+
+ case M09:
+ reg_addr->reg_threshold = M09_REGISTER_THRESHOLD;
+ reg_addr->reg_gain = M09_REGISTER_GAIN;
+ reg_addr->reg_offset = M09_REGISTER_OFFSET;
+ reg_addr->reg_num_x = M09_REGISTER_NUM_X;
+ reg_addr->reg_num_y = M09_REGISTER_NUM_Y;
+ break;
+ }
}
+#ifdef CONFIG_OF
+static int edt_ft5x06_i2c_ts_probe_dt(struct device *dev,
+ struct edt_ft5x06_ts_data *tsdata)
+{
+ int ret;
+ struct device_node *np = dev->of_node;
+ enum of_gpio_flags gpio_flags;
+
+ if (!np)
+ return -ENODEV;
+
+ /*
+ * irq_pin is not needed for DT setup.
+ * irq is associated via 'interrupts' property in DT
+ */
+ tsdata->irq_pin = -EINVAL;
+
+ ret = of_get_named_gpio_flags(np, "reset-gpios", 0, &gpio_flags);
+ tsdata->reset_pin = ret;
+
+ ret = of_get_named_gpio_flags(np, "wake-gpios", 0, &gpio_flags);
+ tsdata->wake_pin = ret;
+
+ return 0;
+}
+#else
+static inline int edt_ft5x06_i2c_ts_probe_dt(struct device *dev,
+ struct edt_ft5x06_i2c_ts_data *tsdata)
+{
+ return -ENODEV;
+}
+#endif
+
static int edt_ft5x06_ts_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
dev_dbg(&client->dev, "probing for EDT FT5x06 I2C\n");
+ tsdata = devm_kzalloc(&client->dev, sizeof(*tsdata), GFP_KERNEL);
+ if (!tsdata) {
+ dev_err(&client->dev, "failed to allocate driver data.\n");
+ return -ENOMEM;
+ }
+
if (!pdata) {
- dev_err(&client->dev, "no platform data?\n");
- return -EINVAL;
+ error = edt_ft5x06_i2c_ts_probe_dt(&client->dev, tsdata);
+ if (error) {
+ dev_err(&client->dev,
+ "DT probe failed and no platform data present\n");
+ return error;
+ }
+ } else {
+ tsdata->reset_pin = pdata->reset_pin;
+ tsdata->irq_pin = pdata->irq_pin;
+ tsdata->wake_pin = -EINVAL;
}
- error = edt_ft5x06_ts_reset(client, pdata->reset_pin);
+ error = edt_ft5x06_ts_reset(client, tsdata);
if (error)
return error;
- if (gpio_is_valid(pdata->irq_pin)) {
- error = gpio_request_one(pdata->irq_pin,
+ if (gpio_is_valid(tsdata->irq_pin)) {
+ error = gpio_request_one(tsdata->irq_pin,
GPIOF_IN, "edt-ft5x06 irq");
if (error) {
dev_err(&client->dev,
"Failed to request GPIO %d, error %d\n",
- pdata->irq_pin, error);
+ tsdata->irq_pin, error);
return error;
}
}
- tsdata = kzalloc(sizeof(*tsdata), GFP_KERNEL);
input = input_allocate_device();
- if (!tsdata || !input) {
- dev_err(&client->dev, "failed to allocate driver data.\n");
+ if (!input) {
+ dev_err(&client->dev, "failed to allocate input device.\n");
error = -ENOMEM;
goto err_free_mem;
}
tsdata->input = input;
tsdata->factory_mode = false;
- error = edt_ft5x06_ts_identify(client, tsdata->name, fw_version);
+ error = edt_ft5x06_ts_identify(client, tsdata, fw_version);
if (error) {
dev_err(&client->dev, "touchscreen probe failed\n");
goto err_free_mem;
}
- edt_ft5x06_ts_get_defaults(tsdata, pdata);
+ edt_ft5x06_ts_set_regs(tsdata);
+
+ if (!pdata)
+ edt_ft5x06_ts_get_dt_defaults(client->dev.of_node, tsdata);
+ else
+ edt_ft5x06_ts_get_defaults(tsdata, pdata);
+
edt_ft5x06_ts_get_parameters(tsdata);
dev_dbg(&client->dev,
device_init_wakeup(&client->dev, 1);
dev_dbg(&client->dev,
- "EDT FT5x06 initialized: IRQ pin %d, Reset pin %d.\n",
- pdata->irq_pin, pdata->reset_pin);
+ "EDT FT5x06 initialized: IRQ %d, WAKE pin %d, Reset pin %d.\n",
+ client->irq, tsdata->wake_pin, tsdata->reset_pin);
return 0;
free_irq(client->irq, tsdata);
err_free_mem:
input_free_device(input);
- kfree(tsdata);
-
- if (gpio_is_valid(pdata->irq_pin))
- gpio_free(pdata->irq_pin);
+ if (gpio_is_valid(tsdata->irq_pin))
+ gpio_free(tsdata->irq_pin);
+ if (gpio_is_valid(tsdata->reset_pin))
+ gpio_free(tsdata->reset_pin);
+ if (gpio_is_valid(tsdata->wake_pin))
+ gpio_free(tsdata->wake_pin);
return error;
}
static int edt_ft5x06_ts_remove(struct i2c_client *client)
{
- const struct edt_ft5x06_platform_data *pdata =
- dev_get_platdata(&client->dev);
struct edt_ft5x06_ts_data *tsdata = i2c_get_clientdata(client);
edt_ft5x06_ts_teardown_debugfs(tsdata);
free_irq(client->irq, tsdata);
input_unregister_device(tsdata->input);
- if (gpio_is_valid(pdata->irq_pin))
- gpio_free(pdata->irq_pin);
- if (gpio_is_valid(pdata->reset_pin))
- gpio_free(pdata->reset_pin);
-
- kfree(tsdata);
+ if (gpio_is_valid(tsdata->irq_pin))
+ gpio_free(tsdata->irq_pin);
+ if (gpio_is_valid(tsdata->reset_pin))
+ gpio_free(tsdata->reset_pin);
+ if (gpio_is_valid(tsdata->wake_pin))
+ gpio_free(tsdata->wake_pin);
return 0;
}
edt_ft5x06_ts_suspend, edt_ft5x06_ts_resume);
static const struct i2c_device_id edt_ft5x06_ts_id[] = {
- { "edt-ft5x06", 0 },
- { }
+ { "edt-ft5x06", 0, },
+ { /* sentinel */ }
};
MODULE_DEVICE_TABLE(i2c, edt_ft5x06_ts_id);
+static const struct of_device_id edt_ft5x06_of_match[] = {
+ { .compatible = "edt,edt-ft5x06", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, edt_ft5x06_of_match);
+
static struct i2c_driver edt_ft5x06_ts_driver = {
.driver = {
.owner = THIS_MODULE,
.name = "edt_ft5x06",
+ .of_match_table = edt_ft5x06_of_match,
.pm = &edt_ft5x06_ts_pm_ops,
},
.id_table = edt_ft5x06_ts_id,
MODULE_AUTHOR("Simon Budig <simon.budig@kernelconcepts.de>");
MODULE_DESCRIPTION("EDT FT5x06 I2C Touchscreen Driver");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:edt-ft5x06");
projects / karo-tx-linux.git / blobdiff