From: Max Staudt Date: Wed, 7 Feb 2024 16:36:43 +0000 (+0900) Subject: HID: playstation: DS4: Fix LED blinking X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8f39af37eb18b03cbd5ea3b01c8eea26280b3b3f;p=linux.git HID: playstation: DS4: Fix LED blinking There was no way to disable blinking once enabled. Disable it on brightness = 0, as per the Linux LED spec. The driver reports back the values it sends to the controller, but they need to be scaled back to milliseconds. Setting the LED blinking via sysfs works as expected now. Signed-off-by: Max Staudt Signed-off-by: Jiri Kosina --- diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c index 8ac8f7b8e3173..7f50e13601f08 100644 --- a/drivers/hid/hid-playstation.c +++ b/drivers/hid/hid-playstation.c @@ -2037,8 +2037,9 @@ static int dualshock4_led_set_blink(struct led_classdev *led, unsigned long *del dualshock4_schedule_work(ds4); - *delay_on = ds4->lightbar_blink_on; - *delay_off = ds4->lightbar_blink_off; + /* Report scaled values back to LED subsystem */ + *delay_on = ds4->lightbar_blink_on * 10; + *delay_off = ds4->lightbar_blink_off * 10; return 0; } @@ -2065,6 +2066,13 @@ static int dualshock4_led_set_brightness(struct led_classdev *led, enum led_brig break; case 3: ds4->lightbar_enabled = !!value; + + /* brightness = 0 also cancels blinking in Linux. */ + if (!ds4->lightbar_enabled) { + ds4->lightbar_blink_off = 0; + ds4->lightbar_blink_on = 0; + ds4->update_lightbar_blink = true; + } } ds4->update_lightbar = true;