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

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
Wolfson.

Signed-off-by: Alban Bedel <alban.bedel@avionic-design.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index 4ad8ebd..4352ffb 100644 (file)
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -1101,6 +1101,8 @@ 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" },