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media: i2c: aw36518: fix power off torch not off issue

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Currently, if camera flash in torch mode,
press power key long to power off don't close flash, so fix it.

Signed-off-by: Wang Panzhenzhuan <randy.wang@rock-chips.com>
Change-Id: I774a9fec00cfee1fef3c933ca6aeaa010aecce81
This commit is contained in:
Wang Panzhenzhuan
2022-10-11 09:53:16 +00:00
parent 65cdd3aa7a
commit b2ba30ab22
1 changed files with 27 additions and 5 deletions
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32
drivers/media/i2c/aw36518.c
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@@ -5,6 +5,7 @@
* Copyright (C) 2022 Fuzhou Rockchip Electronics Co., Ltd.
*
* V0.0X01.0X00 init version.
* V0.0X01.0X01 fix power off torch not off issue.
*/
#include <linux/delay.h>
@@ -21,7 +22,7 @@
#include <media/v4l2-device.h>
#include <linux/compat.h>
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x0)
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x01)
#define AW36518_NAME "aw36518"
#define AW36518_REG_ID 0x00
@@ -32,6 +33,8 @@
#define AW36518_REG_LED0_TORCH_CUR 0x05
#define AW36518_REG_LED1_FLASH_CUR 0x03
#define AW36518_REG_LED1_TORCH_CUR 0x05
#define AW36518_HW_TORCH BIT(4)
#define AW36518_HW_STROBE BIT(5)
#define AW36518_REG_FAULT 0x0A
#define AW36518_REG_FL_SC 0x70
@@ -294,11 +297,25 @@ static int aw36518_set_mode(struct aw36518_flash *flash,
ret = aw36518_i2c_write(flash, 0x01, 0x0C);
ret |= aw36518_flash_brt(flash, LED0);
} else if (mode == V4L2_FLASH_LED_MODE_TORCH) {
ret = aw36518_i2c_write(flash, 0x01, 0x08);
//ret = aw36518_i2c_write(flash, 0x01, 0x08);
/* hw torch/strobe io trigger torch */
ret = aw36518_i2c_write(flash, 0x01, AW36518_HW_TORCH);
ret |= aw36518_torch_brt(flash, LED0);
ret |= aw36518_led_on(flash, true);
if (flash->torch_gpio) {
v4l2_dbg(1, debug, &flash->leds[id].sd,
"%s:set torch gpio high.\n", __func__);
gpiod_set_value_cansleep(flash->torch_gpio, 1);
}
} else {
ret = aw36518_i2c_write(flash, 0x01, 0x00);
if (flash->torch_gpio) {
v4l2_dbg(1, debug, &flash->leds[id].sd,
"%s:set torch gpio low.\n", __func__);
gpiod_set_value_cansleep(flash->torch_gpio, 0);
}
}
return ret;
@@ -696,8 +713,9 @@ static int aw36518_of_init(struct i2c_client *client,
flash->en_gpio = devm_gpiod_get(&client->dev,
"enable", GPIOD_OUT_LOW);
if (IS_ERR(flash->en_gpio)) {
dev_err(&client->dev, "get enable-gpio failed\n");
goto err;
flash->en_gpio = NULL;
dev_warn(&client->dev,
"get enable-gpio failed, using assist light mode\n");
}
flash->torch_gpio = devm_gpiod_get(&client->dev,
@@ -718,7 +736,7 @@ static int aw36518_of_init(struct i2c_client *client,
}
flash->tx_gpio = devm_gpiod_get(&client->dev,
"tx", GPIOD_OUT_LOW);
if (IS_ERR(flash->strobe_gpio)) {
if (IS_ERR(flash->tx_gpio)) {
flash->tx_gpio = NULL;
dev_warn(&client->dev,
"get tx-gpio failed, using assist light mode\n");
@@ -790,6 +808,10 @@ static int aw36518_init_device(struct aw36518_flash *flash)
/* tx input default low */
if (flash->tx_gpio)
gpiod_direction_output(flash->tx_gpio, 0);
/* STROBE/Torch input default low */
if (flash->torch_gpio)
gpiod_set_value_cansleep(flash->torch_gpio, 0);
return ret;
}