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authorHebbar, Gururaja <gururaja.hebbar@ti.com>2012-06-26 17:55:11 +0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-06-29 11:18:03 +0400
commitc9fe573a6584034670c1a55ee8162d623519cbbf (patch)
treed5ab88e4b94341b6b8cef6951c5acdda43e8540a /sound/soc/codecs/tlv320aic3x.h
parentb0dfa4541e48ac4cc5f017285432c89923ad0f58 (diff)
downloadlinux-c9fe573a6584034670c1a55ee8162d623519cbbf.tar.xz
ASoC: tlv320aic3x: Fix codec pll configure bug
In sound/soc/codecs/tlv320aic3x.c data = snd_soc_read(codec, AIC3X_PLL_PROGA_REG); snd_soc_write(codec, AIC3X_PLL_PROGA_REG, data | (pll_p << PLLP_SHIFT)); In the above code, pll-p value is OR'ed with previous value without clearing it. Bug is not seen if pll-p value doesn't change across Sampling frequency. However on some platforms (like AM335x EVM-SK), pll-p may have different values across different sampling frequencies. In such case, above code configures the pll with a wrong value. Because of this bug, when a audio stream is played with pll value different from previous stream, audio is heard as differently(like its stretched). Signed-off-by: Hebbar, Gururaja <gururaja.hebbar@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@vger.kernel.org
Diffstat (limited to 'sound/soc/codecs/tlv320aic3x.h')
-rw-r--r--sound/soc/codecs/tlv320aic3x.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/soc/codecs/tlv320aic3x.h b/sound/soc/codecs/tlv320aic3x.h
index 6f097fb60683..08c7f6685ff0 100644
--- a/sound/soc/codecs/tlv320aic3x.h
+++ b/sound/soc/codecs/tlv320aic3x.h
@@ -166,6 +166,7 @@
/* PLL registers bitfields */
#define PLLP_SHIFT 0
+#define PLLP_MASK 7
#define PLLQ_SHIFT 3
#define PLLR_SHIFT 0
#define PLLJ_SHIFT 2