From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 9 Jan 2009 15:57:14 +0000 (+0100)
Subject: ALSA: hda - Fix silent headphone output on Panasonic CF-74
X-Git-Tag: v2.6.29-rc2~67^2~3^2~6
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=2acc9dcb609427a20463e529ef552dd93b469847;p=linux-2.6-omap-h63xx.git

ALSA: hda - Fix silent headphone output on Panasonic CF-74

CF-74 does the headphone/speaker switching on hardware, thus the driver
shouldn't do any software-toggling of pins.  Otherwise it results in a
silent headphone output.

This patch simply resets the hp_detect flag to fix the problem.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 0e6fc56fa37..89ff916a0ed 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -4467,6 +4467,12 @@ static int patch_stac9200(struct hda_codec *codec)
 		return err;
 	}
 
+	/* CF-74 has no headphone detection, and the driver should *NOT*
+	 * do detection and HP/speaker toggle because the hardware does it.
+	 */
+	if (spec->board_config == STAC_9200_PANASONIC)
+		spec->hp_detect = 0;
+
 	codec->patch_ops = stac92xx_patch_ops;
 
 	return 0;