This is a note to let you know that I've just added the patch titled
ASoC: davinci: fix sample rotation
to the 3.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
asoc-davinci-fix-sample-rotation.patch
and it can be found in the queue-3.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 796718925159523919a589ecbd6d1811c22ef55f Mon Sep 17 00:00:00 2001
From: Daniel Mack <[email protected]>
Date: Thu, 16 May 2013 15:25:01 +0200
Subject: ASoC: davinci: fix sample rotation
From: Daniel Mack <[email protected]>
commit 796718925159523919a589ecbd6d1811c22ef55f upstream.
McASP serial audio engine needs different rotation values on TX and RX
channels. Commit dde109fb462 ("ASoC: McASP: Fix data rotation for
playback. Enables 24bit audio playback") changed the calculation to fix
the playback format, but broke the capture stream by doing it for both
TXFMT and RXFMT.
Signed-off-by: Daniel Mack <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Lingzhu Xiang <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
sound/soc/davinci/davinci-mcasp.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -626,7 +626,8 @@ static int davinci_config_channel_size(s
int word_length)
{
u32 fmt;
- u32 rotate = (word_length / 4) & 0x7;
+ u32 tx_rotate = (word_length / 4) & 0x7;
+ u32 rx_rotate = (32 - word_length) / 4;
u32 mask = (1ULL << word_length) - 1;
/*
@@ -647,9 +648,9 @@ static int davinci_config_channel_size(s
RXSSZ(fmt), RXSSZ(0x0F));
mcasp_mod_bits(dev->base + DAVINCI_MCASP_TXFMT_REG,
TXSSZ(fmt), TXSSZ(0x0F));
- mcasp_mod_bits(dev->base + DAVINCI_MCASP_TXFMT_REG, TXROT(rotate),
+ mcasp_mod_bits(dev->base + DAVINCI_MCASP_TXFMT_REG, TXROT(tx_rotate),
TXROT(7));
- mcasp_mod_bits(dev->base + DAVINCI_MCASP_RXFMT_REG, RXROT(rotate),
+ mcasp_mod_bits(dev->base + DAVINCI_MCASP_RXFMT_REG, RXROT(rx_rotate),
RXROT(7));
mcasp_set_reg(dev->base + DAVINCI_MCASP_TXMASK_REG, mask);
mcasp_set_reg(dev->base + DAVINCI_MCASP_RXMASK_REG, mask);
Patches currently in stable-queue which might be from [email protected] are
queue-3.9/asoc-davinci-fix-sample-rotation.patch
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