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 0e6fc56..89ff916 100644 (file)
--- 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;