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[RESEND PATCH 1/1] ASoC: fsl_ssi: Fix checking of dai format for AC97 mode

Started byAdam Thomson <Adam.Thomson.Opensource@diasemi.com>
First post2015-09-16 11:20 +0200
Last post2015-09-19 02:40 +0200
Articles 2 — 2 participants

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  [RESEND PATCH 1/1] ASoC: fsl_ssi: Fix checking of dai format for AC97 mode Adam Thomson <Adam.Thomson.Opensource@diasemi.com> - 2015-09-16 11:20 +0200
    Re: [RESEND PATCH 1/1] ASoC: fsl_ssi: Fix checking of dai format for  AC97 mode undefined@vger.kernel.org - 2015-09-19 02:40 +0200

#1225877 — [RESEND PATCH 1/1] ASoC: fsl_ssi: Fix checking of dai format for AC97 mode

FromAdam Thomson <Adam.Thomson.Opensource@diasemi.com>
Date2015-09-16 11:20 +0200
Subject[RESEND PATCH 1/1] ASoC: fsl_ssi: Fix checking of dai format for AC97 mode
Message-ID<q9h2H-7W-39@gated-at.bofh.it>
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>
---

Patch based on v4.3-rc1.

 sound/soc/fsl/fsl_ssi.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 8ec6fb2..37c5cd4 100644
--- 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;
-- 
1.9.3

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#1228357 — Re: [RESEND PATCH 1/1] ASoC: fsl_ssi: Fix checking of dai format for AC97 mode

Fromundefined@vger.kernel.org
Date2015-09-19 02:40 +0200
SubjectRe: [RESEND PATCH 1/1] ASoC: fsl_ssi: Fix checking of dai format for AC97 mode
Message-ID<qaem5-2ak-3@gated-at.bofh.it>
In reply to#1225877
Adam Thomson wrote:
> 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>

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