From 56257748698d892b79da80cff9dc8d1191c372f2 Mon Sep 17 00:00:00 2001
From: Nicolin Chen <Guangyu.Chen@freescale.com>
Date: Fri, 20 Dec 2013 16:41:02 +0800
Subject: ASoC: fsl_sai: Drop useless channels check in hw_params()

SAi only supports two data channels on hardware level and the driver also does
register the min->1 and max->2, so no need to check channels.

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
Reviewed-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

---
This patch is pulled back from upstream:
commit d22e28cce80a93578787d273bf1fa26a2be2636b

Change-Id: Ia3f1e1375c9a69d7f0259af8e801594be7b464e2
Reviewed-on: http://git.am.freescale.net:8181/19742
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Zhengxiong Jin <Jason.Jin@freescale.com>

diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index d7b6950..8079f67 100644
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -278,10 +278,7 @@ static int fsl_sai_hw_params(struct snd_pcm_substream *substream,
 		val_cr5 |= FSL_SAI_CR5_FBT(0);
 
 	val_cr4 |= FSL_SAI_CR4_FRSZ(channels);
-	if (channels == 2 || channels == 1)
-		val_mr = ~0UL - ((1 << channels) - 1);
-	else
-		return -EINVAL;
+	val_mr = ~0UL - ((1 << channels) - 1);
 
 	sai_writel(sai, val_cr4, sai->base + reg_cr4);
 	sai_writel(sai, val_cr5, sai->base + reg_cr5);
-- 
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