[PATCH 3.16 219/306] ALSA: hda - add a new condition to check if it is thinkpad

Ben Hutchings
2017-02-16T00:13:23Z

From: Hui Wang <hui.wang@canonical.com>

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@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
[bwh: Backported to 3.16: use acpi_get_devices() instead of acpi_dev_found()]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
--- a/sound/pci/hda/thinkpad_helper.c
+++ b/sound/pci/hda/thinkpad_helper.c
@@ -26,6 +26,9 @@ static bool is_thinkpad(struct hda_codec
if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb, &found, NULL)) && found)
return true;
found = false;
+ if (ACPI_SUCCESS(acpi_get_devices("LEN0268", acpi_check_cb, &found, NULL)) && found)
+ return true;
+ found = false;
return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb, &found, NULL)) && found;
}