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Message-ID: <lsq.1487198500.276781800@decadent.org.uk>
Date:   Wed, 15 Feb 2017 22:41:40 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Takashi Iwai" <tiwai@...e.de>,
        "Hui Wang" <hui.wang@...onical.com>
Subject: [PATCH 3.16 219/306] ALSA: hda - add a new condition to check if
 it is thinkpad

3.16.40-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Hui Wang <hui.wang@...onical.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@...onical.com>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
[bwh: Backported to 3.16: use acpi_get_devices() instead of acpi_dev_found()]
Signed-off-by: Ben Hutchings <ben@...adent.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;
 }
 

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