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[1/2] ALSA: hda - Set internal mic as default input source on Dell XPS 13 9333

Message ID ea95dd5e4c41ae06b15369b9acf15085d4a4e2fa.1407518135.git.gabriele.mzt@gmail.com (mailing list archive)
State Accepted
Commit f38663ab5cc2d1bf359c0fd2b6b84a9f000e4388
Delegated to: Takashi Iwai
Headers show

Commit Message

Gabriele Mazzotta Aug. 8, 2014, 5:34 p.m. UTC
If the laptop is powered on with a jack plugged in, independently on what
is plugged, the jack is treated as a microphone jack.

Initialize the capture source so that by default jacks are treated as
headphones jacks. This will also prevent pop noises on boot in case
headphones are plugged in since setting/unsetting mic-in as input source
causes a pop noise.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=76611
Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
---
 sound/pci/hda/patch_realtek.c | 11 +++++++++++
 1 file changed, 11 insertions(+)
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Patch

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index b60824e..85cd80c 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4018,8 +4018,19 @@  static void alc_fixup_dell_xps13(struct hda_codec *codec,
 {
 	if (action == HDA_FIXUP_ACT_PROBE) {
 		struct alc_spec *spec = codec->spec;
+		struct hda_input_mux *imux = &spec->gen.input_mux;
+		int i;
+
 		spec->shutup = alc_no_shutup;
 		codec->power_filter = alc_power_filter_xps13;
+
+		/* Make the internal mic the default input source. */
+		for (i = 0; i < imux->num_items; i++) {
+			if (spec->gen.imux_pins[i] == 0x12) {
+				spec->gen.cur_mux[0] = i;
+				break;
+			}
+		}
 	}
 }