| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Ideapad helper functions for Lenovo Ideapad LED control, |
| * It should be included from codec driver. |
| */ |
| |
| #if IS_ENABLED(CONFIG_IDEAPAD_LAPTOP) |
| |
| #include <linux/acpi.h> |
| #include <linux/leds.h> |
| |
| static bool is_ideapad(struct hda_codec *codec) |
| { |
| return (codec->core.subsystem_id >> 16 == 0x17aa) && |
| (acpi_dev_found("LHK2019") || acpi_dev_found("VPC2004")); |
| } |
| |
| static void hda_fixup_ideapad_acpi(struct hda_codec *codec, |
| const struct hda_fixup *fix, int action) |
| { |
| if (action == HDA_FIXUP_ACT_PRE_PROBE) { |
| if (!is_ideapad(codec)) |
| return; |
| snd_hda_gen_add_mute_led_cdev(codec, NULL); |
| snd_hda_gen_add_micmute_led_cdev(codec, NULL); |
| } |
| } |
| |
| #else /* CONFIG_IDEAPAD_LAPTOP */ |
| |
| static void hda_fixup_ideapad_acpi(struct hda_codec *codec, |
| const struct hda_fixup *fix, int action) |
| { |
| } |
| |
| #endif /* CONFIG_IDEAPAD_LAPTOP */ |
