From 4432f39584367123bd0643e0f09d13f0c6653d01 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 24 May 2017 01:17:10 +0000
Subject: [PATCH 104/286] ASoC: rsnd: SSI PIO adjust to 24bit mode

commit 90431eb49bff ("ASoC: rsnd: don't use PDTA bit for 24bit on SSI")
fixups 24bit mode data alignment, but PIO was not cared.
This patch fixes PIO mode 24bit data alignment

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
(cherry picked from commit 7819a942de7b993771bd9377babc80485fe7606b)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 sound/soc/sh/rcar/ssi.c |   11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -550,6 +550,13 @@ static void __rsnd_ssi_interrupt(struct
 		struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 		u32 *buf = (u32 *)(runtime->dma_area +
 				   rsnd_dai_pointer_offset(io, 0));
+		int shift = 0;
+
+		switch (runtime->sample_bits) {
+		case 32:
+			shift = 8;
+			break;
+		}
 
 		/*
 		 * 8/16/32 data can be assesse to TDR/RDR register
@@ -557,9 +564,9 @@ static void __rsnd_ssi_interrupt(struct
 		 * see rsnd_ssi_init()
 		 */
 		if (rsnd_io_is_play(io))
-			rsnd_mod_write(mod, SSITDR, *buf);
+			rsnd_mod_write(mod, SSITDR, (*buf) << shift);
 		else
-			*buf = rsnd_mod_read(mod, SSIRDR);
+			*buf = (rsnd_mod_read(mod, SSIRDR) >> shift);
 
 		elapsed = rsnd_dai_pointer_update(io, sizeof(*buf));
 	}