linux-kernel - [PATCH] ASoC: sgtl5000: Fix wrong mask in some snd_soc_update

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Date:	Fri, 21 Oct 2011 09:54:43 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Dong Aisheng <B29396@...escale.com>,
	Wolfram Sang <w.sang@...gutronix.de>,
	Liam Girdwood <lrg@...com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	alsa-devel@...a-project.org
Subject: [PATCH] ASoC: sgtl5000: Fix wrong mask in some snd_soc_update_bits
 calls

Ensure all mask bits are clear before setting new value.

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
I don't have this hardware, I'd appreciate if someone can test this patch.

Thanks,
Axel
 sound/soc/codecs/sgtl5000.c |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c
index 32b5bbd..d15695d 100644
--- a/sound/soc/codecs/sgtl5000.c
+++ b/sound/soc/codecs/sgtl5000.c
@@ -723,7 +723,9 @@ static int sgtl5000_pcm_hw_params(struct snd_pcm_substream *substream,
 		return -EINVAL;
 	}
 
-	snd_soc_update_bits(codec, SGTL5000_CHIP_I2S_CTRL, i2s_ctl, i2s_ctl);
+	snd_soc_update_bits(codec, SGTL5000_CHIP_I2S_CTRL,
+			    SGTL5000_I2S_DLEN_MASK | SGTL5000_I2S_SCLKFREQ_MASK,
+			    i2s_ctl);
 
 	return 0;
 }
@@ -1146,8 +1148,7 @@ static int sgtl5000_set_power_regs(struct snd_soc_codec *codec)
 		vag = (vag - SGTL5000_ANA_GND_BASE) / SGTL5000_ANA_GND_STP;
 
 	snd_soc_update_bits(codec, SGTL5000_CHIP_REF_CTRL,
-			vag << SGTL5000_ANA_GND_SHIFT,
-			vag << SGTL5000_ANA_GND_SHIFT);
+			SGTL5000_ANA_GND_MASK, vag << SGTL5000_ANA_GND_SHIFT);
 
 	/* set line out VAG to vddio / 2, in range (0.8v, 1.675v) */
 	vag = vddio / 2;
@@ -1161,9 +1162,8 @@ static int sgtl5000_set_power_regs(struct snd_soc_codec *codec)
 		    SGTL5000_LINE_OUT_GND_STP;
 
 	snd_soc_update_bits(codec, SGTL5000_CHIP_LINE_OUT_CTRL,
-			vag << SGTL5000_LINE_OUT_GND_SHIFT |
-			SGTL5000_LINE_OUT_CURRENT_360u <<
-				SGTL5000_LINE_OUT_CURRENT_SHIFT,
+			SGTL5000_LINE_OUT_CURRENT_MASK |
+			SGTL5000_LINE_OUT_GND_MASK,
 			vag << SGTL5000_LINE_OUT_GND_SHIFT |
 			SGTL5000_LINE_OUT_CURRENT_360u <<
 				SGTL5000_LINE_OUT_CURRENT_SHIFT);
-- 
1.7.5.4



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