linux-kernel - [PATCH] ALSA: ASoC: McASP: Fix data rotation for playback. Enables 24bit audio playback

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Message-Id: <1358260860-10370-1-git-send-email-michal.bachraty@streamunlimited.com>
Date:	Tue, 15 Jan 2013 15:41:00 +0100
From:	Michal Bachraty <michal.bachraty@...eamunlimited.com>
To:	tiwai@...e.de, perex@...ex.cz
Cc:	lrg@...com, linux-kernel@...r.kernel.org,
	alsa-devel@...a-project.org, broonie@...nsource.wolfsonmicro.com,
	Michal Bachraty <michal.bachraty@...eamunlimited.com>
Subject: [PATCH] ALSA: ASoC: McASP: Fix data rotation for playback. Enables 24bit audio playback

Signed-off-by: Michal Bachraty <michal.bachraty@...eamunlimited.com>
---
 sound/soc/davinci/davinci-mcasp.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index 13f8d73..a03bece 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -626,7 +626,7 @@ static int davinci_config_channel_size(struct davinci_audio_dev *dev,
 				       int word_length)
 {
 	u32 fmt;
-	u32 rotate = (32 - word_length) / 4;
+	u32 rotate = (word_length / 4) & 0x7;
 	u32 mask = (1ULL << word_length) - 1;
 
 	/*
-- 
1.7.9.5

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