[alsa-devel] [PATCH 4/4] pxa2xx-i2s: Fix suspend/resume

Karl Beldan karl.beldan at gmail.com
Fri May 8 01:54:04 CEST 2009


pxa2xx_i2s_resume is :
 - unconditionnaly setting SACR0_ENB
 - unsetting SACR0_ENB in pxa_i2s.sacr0
fix these.

In pxa2xx_i2s_{resume,suspend}, save/restore registers even
when !dai->active.

Signed-off-by: Karl Beldan <karl.beldan at mobile-devices.fr>
---
 sound/soc/pxa/pxa2xx-i2s.c |   11 +++--------
 1 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c
index 755e2d1..5b0f0bf 100644
--- a/sound/soc/pxa/pxa2xx-i2s.c
+++ b/sound/soc/pxa/pxa2xx-i2s.c
@@ -249,9 +249,6 @@ static void pxa2xx_i2s_shutdown(struct snd_pcm_substream *substream,
 #ifdef CONFIG_PM
 static int pxa2xx_i2s_suspend(struct snd_soc_dai *dai)
 {
-	if (!dai->active)
-		return 0;
-
 	/* store registers */
 	pxa_i2s.sacr0 = SACR0;
 	pxa_i2s.sacr1 = SACR1;
@@ -265,14 +262,12 @@ static int pxa2xx_i2s_suspend(struct snd_soc_dai *dai)
 
 static int pxa2xx_i2s_resume(struct snd_soc_dai *dai)
 {
-	if (!dai->active)
-		return 0;
-
-	SACR0 = pxa_i2s.sacr0 &= ~SACR0_ENB;
+	SACR0 = pxa_i2s.sacr0 & ~SACR0_ENB;
 	SACR1 = pxa_i2s.sacr1;
 	SAIMR = pxa_i2s.saimr;
 	SADIV = pxa_i2s.sadiv;
-	SACR0 |= SACR0_ENB;
+
+	SACR0 = pxa_i2s.sacr0;
 
 	return 0;
 }
-- 
1.6.3.rc1.34.g0be9b

-- 
Karl



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