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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /sound/pci/hda/thinkpad_helper.c | |
| parent | Initial commit. (diff) | |
| download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip | |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/pci/hda/thinkpad_helper.c')
| -rw-r--r-- | sound/pci/hda/thinkpad_helper.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/sound/pci/hda/thinkpad_helper.c b/sound/pci/hda/thinkpad_helper.c new file mode 100644 index 000000000..de4d8deed --- /dev/null +++ b/sound/pci/hda/thinkpad_helper.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 */ |