From: Takashi Iwai <tiwai@suse.de>
To: alsa-devel@alsa-project.org
Subject: [PATCH] ALSA: hda/sigmatel - Allow auto-switching for dock line-in of HP laptops
Date: Thu, 27 Feb 2014 16:51:04 +0100 [thread overview]
Message-ID: <1393516264-30257-1-git-send-email-tiwai@suse.de> (raw)
Many HP laptops with STAC codecs have a docking station port and BIOS
sets the pins for the input on the dock as a line in. Because the
generic parser doesn't handle a line in pin as auto-switchable, this
resulted in the manual capture source selection on these laptops.
However, from the usability POV, the automatic switching is easier.
This patch adds the line_in_auto_switch hint in the fixup function for
these laptops. Even if no dock port is present, this should be
harmless as the generic parser allows the auto-switching only in a
limited situation (all three pins are located in different
positions).
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/pci/hda/patch_sigmatel.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index f3784808758e..75515b494034 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -2089,6 +2089,9 @@ static void stac92hd83xxx_fixup_hp(struct hda_codec *codec,
codec_dbg(codec, "mute LED gpio %d polarity %d\n",
spec->gpio_led,
spec->gpio_led_polarity);
+
+ /* allow auto-switching of dock line-in */
+ spec->gen.line_in_auto_switch = true;
}
static void stac92hd83xxx_fixup_hp_zephyr(struct hda_codec *codec,
--
1.9.0
reply other threads:[~2014-02-27 15:51 UTC|newest]
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