linux-kernel - [PATCH AUTOSEL for 4.9 16/52] ASoC: rcar: avoid SSI

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Date:   Wed, 29 Nov 2017 17:21:16 +0000
From:   alexander.levin@...izon.com
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Cc:     Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Mark Brown <broonie@...nel.org>, alexander.levin@...izon.com
Subject: [PATCH AUTOSEL for 4.9 16/52] ASoC: rcar: avoid SSI_MODEx settings
 for SSI8

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

[ Upstream commit 4b30eebfc35c67771b5f58d9274d3e321b72d7a8 ]

SSI8 is is sharing pin with SSI7, and nothing to do for SSI_MODEx.
It is special pin and it needs special settings whole system,
but we can't confirm it, because we never have SSI8 available board.

This patch fixup SSI_MODEx settings error for SSI8 on connection test,
but should be confirmed behavior on real board in the future.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
Tested-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@...esas.com>
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
---
 sound/soc/sh/rcar/ssiu.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sound/soc/sh/rcar/ssiu.c b/sound/soc/sh/rcar/ssiu.c
index 6f9b388ec5a8..3f95d6b88f8c 100644
--- a/sound/soc/sh/rcar/ssiu.c
+++ b/sound/soc/sh/rcar/ssiu.c
@@ -44,7 +44,11 @@ static int rsnd_ssiu_init(struct rsnd_mod *mod,
 	mask1 = (1 << 4) | (1 << 20);	/* mask sync bit */
 	mask2 = (1 << 4);		/* mask sync bit */
 	val1  = val2  = 0;
-	if (rsnd_ssi_is_pin_sharing(io)) {
+	if (id == 8) {
+		/*
+		 * SSI8 pin is sharing with SSI7, nothing to do.
+		 */
+	} else if (rsnd_ssi_is_pin_sharing(io)) {
 		int shift = -1;
 
 		switch (id) {
-- 
2.11.0