leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

proximity: vl53l0x: Handle the reset GPIO

Browse Source 
Handle the GPIO connected to the XSHUT/RST_N pin of VL53L0X.

Signed-off-by: Markuss Broks <markuss.broks@gmail.com>
Link: https://lore.kernel.org/r/20220523175344.5845-5-markuss.broks@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Markuss Broks 2022-05-23 20:53:43 +03:00 committed by Jonathan Cameron
parent d3d6dba56d
commit e8941aab84
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/iio/proximity/vl53l0x-i2c.c
View File

@ -15,6 +15,7 @@
*/
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
@ -44,6 +45,7 @@ struct vl53l0x_data {
struct i2c_client *client;
struct completion completion;
struct regulator *vdd_supply;
struct gpio_desc *reset_gpio;
};
static irqreturn_t vl53l0x_handle_irq(int irq, void *priv)
@ -196,6 +198,8 @@ static void vl53l0x_power_off(void *_data)
{
struct vl53l0x_data *data = _data;
gpiod_set_value_cansleep(data->reset_gpio, 1);
regulator_disable(data->vdd_supply);
}
@ -207,6 +211,8 @@ static int vl53l0x_power_on(struct vl53l0x_data *data)
if (ret)
return ret;
gpiod_set_value_cansleep(data->reset_gpio, 0);
usleep_range(3200, 5000);
return 0;
@ -236,6 +242,11 @@ static int vl53l0x_probe(struct i2c_client *client)
return dev_err_probe(&client->dev, PTR_ERR(data->vdd_supply),
"Unable to get VDD regulator\n");
data->reset_gpio = devm_gpiod_get_optional(&client->dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(data->reset_gpio))
return dev_err_probe(&client->dev, PTR_ERR(data->reset_gpio),
"Cannot get reset GPIO\n");
error = vl53l0x_power_on(data);
if (error)
return dev_err_probe(&client->dev, error,