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TP ct36x: reduce init time

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zyk
2014-03-20 16:33:57 +08:00
parent bb8a336276
commit 3b7941ce8f
3 changed files with 23 additions and 18 deletions
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18
drivers/input/touchscreen/ct36x/core.c
View File

@@ -22,7 +22,7 @@ int ct36x_chip_set_idle(struct ct36x_data *ts)
char buf[2] = {0x00, 0xA5};
ret = ct36x_update_write(ts, 0x7F, buf, 2);
mdelay(10);
mdelay(5);
return ret;
}
@@ -33,7 +33,7 @@ static int ct36x_chip_rst_offset(struct ct36x_data *ts)
char buf = 0x00;
ret =ct36x_update_write(ts, 0x7F, &buf, 1);
mdelay(10);
mdelay(5);
return ret;
}
@@ -201,14 +201,14 @@ int ct36x_chip_get_fwchksum(struct ct36x_data *ts)
ret = ct36x_write(ts, buf, 3);
if(ret < 0)
return ret;
mdelay(20);
mdelay(5);
buf[0] = 0x00;
buf[1] = 0xE1;
ret = ct36x_write(ts, buf, 2);
if(ret < 0)
return ret;
mdelay(500);
mdelay(330);
buf[0] = 0xFF;
buf[1] = 0x8E;
@@ -216,7 +216,7 @@ int ct36x_chip_get_fwchksum(struct ct36x_data *ts)
ret = ct36x_write(ts, buf, 3);
if(ret < 0)
return ret;
mdelay(20);
mdelay(5);
ret = ct36x_chip_rst_offset(ts);
if(ret < 0){
@@ -228,7 +228,7 @@ int ct36x_chip_get_fwchksum(struct ct36x_data *ts)
if(ret < 0)
return ret;
mdelay(20);
mdelay(5);
fwchksum = ((buf[0]<<8) | buf[1]);
return fwchksum;
@@ -246,19 +246,19 @@ int ct36x_chip_get_ver(struct ct36x_data *ts)
ret = ct36x_write(ts, buf, 3);
if(ret < 0)
return ret;
mdelay(10);
mdelay(5);
buf[0] = 0x00;
ret = ct36x_write(ts, buf, 1);
if(ret < 0)
return ret;
mdelay(10);
mdelay(5);
// do read version
ret = ct36x_read(ts, &ver, 1);
if(ret < 0)
return ret;
mdelay(10);
mdelay(5);
return ver;
}

17
drivers/input/touchscreen/ct36x/ct363.c
View File

@@ -53,12 +53,12 @@ static void ct363_deinit_hw(struct ct36x_data *ts)
static void ct363_reset_hw(struct ct36x_data *ts)
{
gpio_direction_output(ts->rst_io.gpio, ts->rst_io.active_low);
msleep(50);
//gpio_direction_output(ts->rst_io.gpio, ts->rst_io.active_low);
//msleep(50);
gpio_set_value(ts->rst_io.gpio, !ts->rst_io.active_low);
msleep(50);
msleep(10);
gpio_set_value(ts->rst_io.gpio, ts->rst_io.active_low);
msleep(500);
msleep(230);
}
static int ct363_init(struct ct36x_data *ts)
@@ -73,6 +73,8 @@ static int ct363_init(struct ct36x_data *ts)
/* Hardware reset */
ct363_reset_hw(ts);
// Get binary Checksum
#if 1
binchksum = ct36x_chip_get_binchksum();
ct36x_dbg(ts, "CT363 init: binchksum = %d\n", binchksum);
@@ -107,9 +109,12 @@ static int ct363_init(struct ct36x_data *ts)
}
/* Hardware reset */
ct363_reset_hw(ts);
//ct363_reset_hw(ts);
gpio_set_value(ts->rst_io.gpio, !ts->rst_io.active_low);
msleep(10);
gpio_set_value(ts->rst_io.gpio, ts->rst_io.active_low);
msleep(5);
#endif
ts->point_num = CT363_POINT_NUM;
ct363 = kzalloc(sizeof(struct ct363_priv), GFP_KERNEL);

6
drivers/input/touchscreen/ct36x/ct36x_ts.c
View File

@@ -196,7 +196,7 @@ static int ct36x_ts_probe(struct i2c_client *client, const struct i2c_device_id
ts->irq_io.gpio = of_get_named_gpio_flags(np, "touch-gpio", 0, (enum of_gpio_flags *)&irq_flags);
ts->rst_io.gpio = of_get_named_gpio_flags(np, "reset-gpio", 0, &rst_flags);
printk("the irq_flags is %ld,rst_flags is %d\n",irq_flags,rst_flags);
//printk("the irq_flags is %ld,rst_flags is %d\n",irq_flags,rst_flags);
ret = of_property_read_u32_array(np, "orientation",orientation,4);
if (ret < 0)
@@ -217,13 +217,13 @@ static int ct36x_ts_probe(struct i2c_client *client, const struct i2c_device_id
if (gpio_is_valid(ts->rst_io.gpio)) {
ts->rst_io.active_low = (rst_flags & OF_GPIO_ACTIVE_LOW) ? 0 : 1;
printk("the ts->rst_io.active_low is %d ========\n",ts->rst_io.active_low);
//printk("the ts->rst_io.active_low is %d ========\n",ts->rst_io.active_low);
ret = devm_gpio_request_one(&client->dev, ts->rst_io.gpio, (rst_flags & OF_GPIO_ACTIVE_LOW) ? GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW, "ct363 reset pin");
if (ret != 0) {
dev_err(&client->dev, "ct363 gpio_request error\n");
return -EIO;
}
msleep(100);
//msleep(100);
} else {
dev_info(&client->dev, "reset pin invalid\n");
}