[PATCH 2/2] leds: flash: leds-qcom-flash: disable LED when changing brightness

From: Dylan Van Assche
Date: Sun May 07 2023 - 13:32:11 EST


The Qualcomm PMI8998 PMIC requires the LED to be disabled when configuring
the brightness. Always disable the LED when setting the brightness and
re-enable it afterwards.

Signed-off-by: Dylan Van Assche <me@xxxxxxxxxxxxxxxxx>
---
drivers/leds/flash/leds-qcom-flash.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/leds/flash/leds-qcom-flash.c b/drivers/leds/flash/leds-qcom-flash.c
index 16045b5d89b1..c8d41a3caf38 100644
--- a/drivers/leds/flash/leds-qcom-flash.c
+++ b/drivers/leds/flash/leds-qcom-flash.c
@@ -417,6 +417,14 @@ static int qcom_flash_led_brightness_set(struct led_classdev *led_cdev,
bool enable = !!brightness;
int rc;

+ rc = set_flash_strobe(led, SW_STROBE, false);
+ if (rc)
+ return rc;
+
+ rc = set_flash_module_en(led, false);
+ if (rc)
+ return rc;
+
rc = set_flash_current(led, current_ma, TORCH_MODE);
if (rc)
return rc;
--
2.40.1