3.16.40-rc1 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> [bwh: Backported to 3.16: use acpi_get_devices() instead of acpi_dev_found()] Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx> --- --- 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; }