ASoC: fsl_ssi: Fix checking of dai format for AC97 mode

Current code incorrectly treats dai format for AC97 as bit mask
whereas it's actually an integer value. This causes DAI formats
other than AC97 (e.g. DSP_B) to trigger AC97 related code,
which is incorrect and breaks functionality. This patch fixes
the code to correctly compare values to determine AC97 or not.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Acked-by: Timur Tabi <timur@tabi.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 8ec6fb208ea073b70bc19b27dab7a12129a035f7..37c5cd4d0e59038ca72c8520bb350de60e42a278 100644 (file)
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -249,7 +249,8 @@ MODULE_DEVICE_TABLE(of, fsl_ssi_ids);
 
 static bool fsl_ssi_is_ac97(struct fsl_ssi_private *ssi_private)
 {
-       return !!(ssi_private->dai_fmt & SND_SOC_DAIFMT_AC97);
+       return (ssi_private->dai_fmt & SND_SOC_DAIFMT_FORMAT_MASK) ==
+               SND_SOC_DAIFMT_AC97;
 }
 
 static bool fsl_ssi_is_i2s_master(struct fsl_ssi_private *ssi_private)
@@ -947,7 +948,7 @@ static int _fsl_ssi_set_dai_fmt(struct device *dev,
                                CCSR_SSI_SCR_TCH_EN);
        }
 
-       if (fmt & SND_SOC_DAIFMT_AC97)
+       if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) == SND_SOC_DAIFMT_AC97)
                fsl_ssi_setup_ac97(ssi_private);
 
        return 0;