Files
SDK_SG200x_V2/linux_5.10/sound/pci/hda/thinkpad_helper.c
carbon 0545e9dc6d init version 2024-05-07
commit d1edce71135cc6d98c0a4b5729774542b676e769
Author: sophgo-forum-service <forum_service@sophgo.com>
Date:   Fri Mar 15 16:07:33 2024 +0800

    [fix] recommend using ssh method to clone repo.
    [fix] fix sensor driver repo branch name.
2024-05-07 19:36:36 +08:00

37 lines
887 B
C

// 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_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 */