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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-12 14:08:35 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-12 14:08:35 +0300 |
| commit | 4a12f38e23d10a5dbad6cce0abaadd10e5a1aa68 (patch) | |
| tree | 533208f5479c17b9a7c162a425a967c7a7edf46b /sound/hda/codecs/helpers/thinkpad.c | |
| parent | 0d2f2f4f27694a2214701e7482ab7599ce4e5e77 (diff) | |
| parent | 449d48b1b99fdaa076166e200132705ac2bee711 (diff) | |
| download | linux-rolling-stable.tar.xz | |
Merge v6.17.2linux-rolling-stable
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/hda/codecs/helpers/thinkpad.c')
| -rw-r--r-- | sound/hda/codecs/helpers/thinkpad.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/sound/hda/codecs/helpers/thinkpad.c b/sound/hda/codecs/helpers/thinkpad.c new file mode 100644 index 000000000000..de4d8deed102 --- /dev/null +++ b/sound/hda/codecs/helpers/thinkpad.c @@ -0,0 +1,36 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Helper functions for Thinkpad LED control; + * to be included from codec driver + */ + +#if IS_ENABLED(CONFIG_THINKPAD_ACPI) + +#include <linux/acpi.h> +#include <linux/leds.h> + +static bool is_thinkpad(struct hda_codec *codec) +{ + return (codec->core.subsystem_id >> 16 == 0x17aa) && + (acpi_dev_found("LEN0068") || acpi_dev_found("LEN0268") || + acpi_dev_found("IBM0068")); +} + +static void hda_fixup_thinkpad_acpi(struct hda_codec *codec, + const struct hda_fixup *fix, int action) +{ + if (action == HDA_FIXUP_ACT_PRE_PROBE) { + if (!is_thinkpad(codec)) + return; + snd_hda_gen_add_mute_led_cdev(codec, NULL); + snd_hda_gen_add_micmute_led_cdev(codec, NULL); + } +} + +#else /* CONFIG_THINKPAD_ACPI */ + +static void hda_fixup_thinkpad_acpi(struct hda_codec *codec, + const struct hda_fixup *fix, int action) +{ +} + +#endif /* CONFIG_THINKPAD_ACPI */ |