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// SPDX-License-Identifier: GPL-2.0
/* Helper functions for Dell Mic Mute LED control;
* to be included from codec driver
*/
#if IS_ENABLED(CONFIG_DELL_LAPTOP)
#include <linux/dell-led.h>
static int (*dell_micmute_led_set_func)(int);
static void dell_micmute_update(struct hda_codec *codec)
{
struct hda_gen_spec *spec = codec->spec;
dell_micmute_led_set_func(spec->micmute_led.led_value);
}
static void alc_fixup_dell_wmi(struct hda_codec *codec,
const struct hda_fixup *fix, int action)
{
bool removefunc = false;
if (action == HDA_FIXUP_ACT_PROBE) {
if (!dell_micmute_led_set_func)
dell_micmute_led_set_func = symbol_request(dell_micmute_led_set);
if (!dell_micmute_led_set_func) {
codec_warn(codec, "Failed to find dell wmi symbol dell_micmute_led_set\n");
return;
}
removefunc = (dell_micmute_led_set_func(false) < 0) ||
(snd_hda_gen_add_micmute_led(codec,
dell_micmute_update) < 0);
}
if (dell_micmute_led_set_func && (action == HDA_FIXUP_ACT_FREE || removefunc)) {
symbol_put(dell_micmute_led_set);
dell_micmute_led_set_func = NULL;
}
}
#else /* CONFIG_DELL_LAPTOP */
static void alc_fixup_dell_wmi(struct hda_codec *codec,
const struct hda_fixup *fix, int action)
{
}
#endif /* CONFIG_DELL_LAPTOP */
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