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authorMax Staudt <max@enpas.org>2024-02-07 19:36:43 +0300
committerJiri Kosina <jkosina@suse.com>2024-04-03 22:53:39 +0300
commit8f39af37eb18b03cbd5ea3b01c8eea26280b3b3f (patch)
treec44b9b6395a69069ea0a26a3c82bd603c335a70d
parent3e78a6c0d3e02e4cf881dc84c5127e9990f939d6 (diff)
downloadlinux-8f39af37eb18b03cbd5ea3b01c8eea26280b3b3f.tar.xz
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 <max@enpas.org> Signed-off-by: Jiri Kosina <jkosina@suse.com>
-rw-r--r--drivers/hid/hid-playstation.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c
index 8ac8f7b8e317..7f50e13601f0 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;