[v3,5/5] ASoC: arizona: Use auto disable muxes for routing
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Message ID 1430480247-28753-5-git-send-email-ckeepax@opensource.wolfsonmicro.com
State New
Headers show

Commit Message

Charles Keepax May 1, 2015, 11:37 a.m. UTC
The mixer core on the Arizona devices is powered up whenever any routing
is non-zero. This patch saves a little power and avoids a few difficult
corner cases (around the mixer core being powered whilst there is no
clock available), by using the autodisable mux functionality to only
write out the settings for the muxes when they are powered up.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
---
 sound/soc/codecs/arizona.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

Comments

Mark Brown May 6, 2015, 4:16 p.m. UTC | #1
On Fri, May 01, 2015 at 12:37:27PM +0100, Charles Keepax wrote:
> The mixer core on the Arizona devices is powered up whenever any routing
> is non-zero. This patch saves a little power and avoids a few difficult
> corner cases (around the mixer core being powered whilst there is no
> clock available), by using the autodisable mux functionality to only
> write out the settings for the muxes when they are powered up.

Applied, thanks.

Patch
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diff --git a/sound/soc/codecs/arizona.h b/sound/soc/codecs/arizona.h
index 11ff899..bacc296 100644
--- a/sound/soc/codecs/arizona.h
+++ b/sound/soc/codecs/arizona.h
@@ -107,8 +107,8 @@  extern int arizona_mixer_values[ARIZONA_NUM_MIXER_INPUTS];
 			     arizona_mixer_tlv)
 
 #define ARIZONA_MUX_ENUM_DECL(name, reg) \
-	SOC_VALUE_ENUM_SINGLE_DECL(name, reg, 0, 0xff,			\
-				   arizona_mixer_texts, arizona_mixer_values)
+	SOC_VALUE_ENUM_SINGLE_AUTODISABLE_DECL( \
+		name, reg, 0, 0xff, arizona_mixer_texts, arizona_mixer_values)
 
 #define ARIZONA_MUX_CTL_DECL(name) \
 	const struct snd_kcontrol_new name##_mux =	\