From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Fri, 22 Jun 2012 16:21:17 +0000 (+0100)
Subject: ASoC: wm8994: Ensure there are enough BCLKs for four channels
X-Git-Tag: v3.2.27~48
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=842b98aa6a3a5c5efb7212aec56985cc06674f12;p=karo-tx-linux.git

ASoC: wm8994: Ensure there are enough BCLKs for four channels

commit b8edf3e5522735c8ce78b81845f7a1a2d4a08626 upstream.

Otherwise if someone tries to use all four channels on AIF1 with the
device in master mode we won't be able to clock out all the data.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index de61b8ae74fa..98c577407d80 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -2508,7 +2508,7 @@ static int wm8994_hw_params(struct snd_pcm_substream *substream,
 		return -EINVAL;
 	}
 
-	bclk_rate = params_rate(params) * 2;
+	bclk_rate = params_rate(params) * 4;
 	switch (params_format(params)) {
 	case SNDRV_PCM_FORMAT_S16_LE:
 		bclk_rate *= 16;