8a503555be
This patch converts the remaining user of snd_hda_gen_add_micmute_led() in Realtek codec driver into the new snd_hda_gen_add_micmute_led_cdev(). The Thinkpad helper code is updated accordingly, too. Also, the usage of snd_hda_gen_fixup_micmute_led() is replaced with either the local alc_fixup_micmute_led() or the explicit call of snd_hda_gen_add_micmute_led_cdev() with NULL callback. Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Link: https://lore.kernel.org/r/20200618110842.27238-4-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Helper functions for Thinkpad LED control;
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* to be included from codec driver
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*/
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#if IS_ENABLED(CONFIG_THINKPAD_ACPI) && IS_REACHABLE(CONFIG_LEDS_TRIGGER_AUDIO)
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#include <linux/acpi.h>
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#include <linux/leds.h>
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static void (*old_vmaster_hook)(void *, int);
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static bool is_thinkpad(struct hda_codec *codec)
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{
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return (codec->core.subsystem_id >> 16 == 0x17aa) &&
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(acpi_dev_found("LEN0068") || acpi_dev_found("LEN0268") ||
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acpi_dev_found("IBM0068"));
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}
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static void update_tpacpi_mute_led(void *private_data, int enabled)
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{
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if (old_vmaster_hook)
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old_vmaster_hook(private_data, enabled);
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ledtrig_audio_set(LED_AUDIO_MUTE, enabled ? LED_OFF : LED_ON);
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}
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static void hda_fixup_thinkpad_acpi(struct hda_codec *codec,
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const struct hda_fixup *fix, int action)
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{
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struct hda_gen_spec *spec = codec->spec;
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if (action == HDA_FIXUP_ACT_PROBE) {
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if (!is_thinkpad(codec))
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return;
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old_vmaster_hook = spec->vmaster_mute.hook;
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spec->vmaster_mute.hook = update_tpacpi_mute_led;
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snd_hda_gen_add_micmute_led_cdev(codec, NULL);
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}
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}
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#else /* CONFIG_THINKPAD_ACPI */
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static void hda_fixup_thinkpad_acpi(struct hda_codec *codec,
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const struct hda_fixup *fix, int action)
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{
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}
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#endif /* CONFIG_THINKPAD_ACPI */
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