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-rw-r--r--sound/pci/hda/patch_realtek.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index dae403b14aa2..b6a1c8b7f5d0 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -17,6 +17,7 @@
#include <linux/dmi.h>
#include <linux/module.h>
#include <linux/input.h>
+#include <linux/leds.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/hda_codec.h>
@@ -4103,6 +4104,26 @@ static void alc_gpio_micmute_update(struct hda_codec *codec)
spec->gen.micmute_led.led_value);
}
+#if IS_REACHABLE(CONFIG_LEDS_TRIGGER_AUDIO)
+static int micmute_led_set(struct led_classdev *led_cdev,
+ enum led_brightness brightness)
+{
+ struct hda_codec *codec = dev_to_hda_codec(led_cdev->dev->parent);
+ struct alc_spec *spec = codec->spec;
+
+ alc_update_gpio_led(codec, spec->gpio_mic_led_mask,
+ spec->micmute_led_polarity, !!brightness);
+ return 0;
+}
+
+static struct led_classdev micmute_led_cdev = {
+ .name = "hda::micmute",
+ .max_brightness = 1,
+ .brightness_set_blocking = micmute_led_set,
+ .default_trigger = "audio-micmute",
+};
+#endif
+
/* setup mute and mic-mute GPIO bits, add hooks appropriately */
static void alc_fixup_hp_gpio_led(struct hda_codec *codec,
int action,
@@ -4110,6 +4131,7 @@ static void alc_fixup_hp_gpio_led(struct hda_codec *codec,
unsigned int micmute_mask)
{
struct alc_spec *spec = codec->spec;
+ int err;
alc_fixup_gpio(codec, action, mute_mask | micmute_mask);
@@ -4122,6 +4144,13 @@ static void alc_fixup_hp_gpio_led(struct hda_codec *codec,
if (micmute_mask) {
spec->gpio_mic_led_mask = micmute_mask;
snd_hda_gen_add_micmute_led(codec, alc_gpio_micmute_update);
+
+#if IS_REACHABLE(CONFIG_LEDS_TRIGGER_AUDIO)
+ micmute_led_cdev.brightness = ledtrig_audio_get(LED_AUDIO_MICMUTE);
+ err = devm_led_classdev_register(&codec->core.dev, &micmute_led_cdev);
+ if (err)
+ codec_warn(codec, "failed to register micmute LED\n");
+#endif
}
}