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// 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 */
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