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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org,
        Andrew Gabbasov <andrew_gabbasov@mentor.com>,
        Jiada Wang <jiada_wang@mentor.com>,
        Timo Wischer <twischer@de.adit-jv.com>,
        Junya Monden <jmonden@jp.adit-jv.com>,
        Eugeniu Rosca <erosca@de.adit-jv.com>,
        Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
        Mark Brown <broonie@kernel.org>
Subject: [PATCH 4.9 34/49] ASoC: rsnd: Reinitialize bit clock inversion flag for every format setting
Date:   Sun, 27 Oct 2019 22:01:12 +0100
Message-Id: <20191027203148.024594991@linuxfoundation.org>
In-Reply-To: <20191027203119.468466356@linuxfoundation.org>
References: <20191027203119.468466356@linuxfoundation.org>
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From: Junya Monden <jmonden@jp.adit-jv.com>

commit 22e58665a01006d05f0239621f7d41cacca96cc4 upstream.

Unlike other format-related DAI parameters, rdai->bit_clk_inv flag
is not properly re-initialized when setting format for new stream
processing. The inversion, if requested, is then applied not to default,
but to a previous value, which leads to SCKP bit in SSICR register being
set incorrectly.
Fix this by re-setting the flag to its initial value, determined by format.

Fixes: 1a7889ca8aba3 ("ASoC: rsnd: fixup SND_SOC_DAIFMT_xB_xF behavior")
Cc: Andrew Gabbasov <andrew_gabbasov@mentor.com>
Cc: Jiada Wang <jiada_wang@mentor.com>
Cc: Timo Wischer <twischer@de.adit-jv.com>
Cc: stable@vger.kernel.org # v3.17+
Signed-off-by: Junya Monden <jmonden@jp.adit-jv.com>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/20191016124255.7442-1-erosca@de.adit-jv.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/soc/sh/rcar/core.c |    1 +
 1 file changed, 1 insertion(+)

--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -629,6 +629,7 @@ static int rsnd_soc_dai_set_fmt(struct s
 	}
 
 	/* set format */
+	rdai->bit_clk_inv = 0;
 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 	case SND_SOC_DAIFMT_I2S:
 		rdai->sys_delay = 0;