[PATCH 4.8 17/67] ALSA: hda - add a new condition to check if it is thinkpad

From: Greg Kroah-Hartman
Date: Thu Nov 24 2016 - 10:28:31 EST


4.8-stable review patch. If anyone has any objections, please let me know.

------------------

From: Hui Wang <hui.wang@xxxxxxxxxxxxx>

commit 2ecb704a1290edb5e3d53a75529192e7ed2a1a28 upstream.

Latest Thinkpad laptops use the HKEY_HID LEN0268 instead of the
LEN0068, as a result neither audio mute led nor mic mute led can work
any more.

After adding the new HKEY_HID into the is_thinkpad(), both of them
works well as before.

Signed-off-by: Hui Wang <hui.wang@xxxxxxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
sound/pci/hda/thinkpad_helper.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/sound/pci/hda/thinkpad_helper.c
+++ b/sound/pci/hda/thinkpad_helper.c
@@ -13,7 +13,8 @@ static void (*old_vmaster_hook)(void *,
static bool is_thinkpad(struct hda_codec *codec)
{
return (codec->core.subsystem_id >> 16 == 0x17aa) &&
- (acpi_dev_found("LEN0068") || acpi_dev_found("IBM0068"));
+ (acpi_dev_found("LEN0068") || acpi_dev_found("LEN0268") ||
+ acpi_dev_found("IBM0068"));
}

static void update_tpacpi_mute_led(void *private_data, int enabled)