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From: Jerome Brunet <jbrunet@baylibre.com>
To: Mark Brown <broonie@kernel.org>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Kevin Hilman <khilman@baylibre.com>
Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org,
	linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
	Jerome Brunet <jbrunet@baylibre.com>
Subject: [PATCH 3/4] ASoC: meson: axg-tdm: fix sample clock inversion
Date: Thu, 13 Jun 2019 13:42:32 +0200
Message-ID: <20190613114233.21130-4-jbrunet@baylibre.com> (raw)
In-Reply-To: <20190613114233.21130-1-jbrunet@baylibre.com>

The content of SND_SOC_DAIFMT_FORMAT_MASK is a number, not a bitfield,
so the test to check if the format is i2s is wrong. Because of this the
clock setting may be wrong. For example, the sample clock gets inverted
in DSP B mode, when it should not.

Fix the lrclk invert helper function

Fixes: 1a11d88f499c ("ASoC: meson: add tdm formatter base driver")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
---
 sound/soc/meson/axg-tdm.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/meson/axg-tdm.h b/sound/soc/meson/axg-tdm.h
index e578b6f40a07..5774ce0916d4 100644
--- a/sound/soc/meson/axg-tdm.h
+++ b/sound/soc/meson/axg-tdm.h
@@ -40,7 +40,7 @@ struct axg_tdm_iface {
 
 static inline bool axg_tdm_lrclk_invert(unsigned int fmt)
 {
-	return (fmt & SND_SOC_DAIFMT_I2S) ^
+	return ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) == SND_SOC_DAIFMT_I2S) ^
 		!!(fmt & (SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_NB_IF));
 }
 
-- 
2.20.1


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  parent reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-13 11:42 [PATCH 0/4] ASoC: meson: axg-tdm: i2s format fixups Jerome Brunet
2019-06-13 11:42 ` [PATCH 1/4] ASoC: meson: axg-tdmin: right_j is not supported Jerome Brunet
2019-06-13 19:06   ` Applied "ASoC: meson: axg-tdmin: right_j is not supported" to the asoc tree Mark Brown
2019-06-13 11:42 ` [PATCH 2/4] ASoC: meson: axg-tdmout: right_j is not supported Jerome Brunet
2019-06-13 19:06   ` Applied "ASoC: meson: axg-tdmout: right_j is not supported" to the asoc tree Mark Brown
2019-06-13 11:42 ` Jerome Brunet [this message]
2019-06-13 19:06   ` Applied "ASoC: meson: axg-tdm: fix sample clock inversion" " Mark Brown
2019-06-13 11:42 ` [PATCH 4/4] ASoC: meson: axg-tdm: consistently use SND_SOC_DAIFMT defines Jerome Brunet
2019-06-13 19:06   ` Applied "ASoC: meson: axg-tdm: consistently use SND_SOC_DAIFMT defines" to the asoc tree Mark Brown

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