[50/72] ASoC: wm8903: Fix the bypass to HP/LINEOUT when no DAC or ADC is running

Submitted by Luis Henriques on April 18, 2013, 9:16 a.m.


Message ID 1366276617-3553-51-git-send-email-luis.henriques@canonical.com
State New
Headers show

Commit Message

Luis Henriques April 18, 2013, 9:16 a.m. -stable review patch.  If anyone has any objections, please let me know.


From: Alban Bedel <alban.bedel@avionic-design.de>

commit f1ca493b0b5e8f42d3b2dc8877860db2983f47b6 upstream.

The Charge Pump needs the DSP clock to work properly, without it the
bypass to HP/LINEOUT is not working properly. This requirement is not
mentioned in the datasheet but has been confirmed by Mark Brown from

Signed-off-by: Alban Bedel <alban.bedel@avionic-design.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
 sound/soc/codecs/wm8903.c | 2 ++
 1 file changed, 2 insertions(+)

Patch hide | download patch | download mbox

diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index 86b8a29..8ddfc19 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -1082,6 +1082,8 @@  static const struct snd_soc_dapm_route wm8903_intercon[] = {
 	{ "ROP", NULL, "Right Speaker PGA" },
 	{ "RON", NULL, "Right Speaker PGA" },
+	{ "Charge Pump", NULL, "CLK_DSP" },
 	{ "Left Headphone Output PGA", NULL, "Charge Pump" },
 	{ "Right Headphone Output PGA", NULL, "Charge Pump" },
 	{ "Left Line Output PGA", NULL, "Charge Pump" },