linux-kernel - [PATCH 4.4 48/53] ASoC: rsnd: ssi: 24bit data needs right-aligned settings

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Date:   Mon, 28 Aug 2017 10:05:53 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Mark Brown <broonie@...nel.org>,
        Thong Ho <thong.ho.px@....renesas.com>,
        Nhan Nguyen <nhan.nguyen.yb@...esas.com>
Subject: [PATCH 4.4 48/53] ASoC: rsnd: ssi: 24bit data needs right-aligned settings

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>

commit f46a93b820eb3707faf238cd769a004e2504515f upstream.

Data left/right aligned is controlled by PDTA bit on SSICR.
But default is left-aligned. Thus 24bit sound will be very small sound
without this patch.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Thong Ho <thong.ho.px@....renesas.com>
Signed-off-by: Nhan Nguyen <nhan.nguyen.yb@...esas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 sound/soc/sh/rcar/ssi.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -39,6 +39,7 @@
 #define	SCKP		(1 << 13)	/* Serial Bit Clock Polarity */
 #define	SWSP		(1 << 12)	/* Serial WS Polarity */
 #define	SDTA		(1 << 10)	/* Serial Data Alignment */
+#define	PDTA		(1 <<  9)	/* Parallel Data Alignment */
 #define	DEL		(1 <<  8)	/* Serial Data Delay */
 #define	CKDV(v)		(v <<  4)	/* Serial Clock Division Ratio */
 #define	TRMD		(1 <<  1)	/* Transmit/Receive Mode Select */
@@ -286,7 +287,7 @@ static int rsnd_ssi_init(struct rsnd_mod
 	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 	u32 cr;
 
-	cr = FORCE;
+	cr = FORCE | PDTA;
 
 	/*
 	 * always use 32bit system word for easy clock calculation.