linux-kernel - [PATCH 3.16 027/306] ASoC: dapm: Fix value setting for _ENUM

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Message-ID: <lsq.1487198500.661071941@decadent.org.uk>
Date:   Wed, 15 Feb 2017 22:41:40 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Chen-Yu Tsai" <wens@...e.org>,
        "Charles Keepax" <ckeepax@...nsource.wolfsonmicro.com>,
        "Mark Brown" <broonie@...nel.org>
Subject: [PATCH 3.16 027/306] ASoC: dapm: Fix value setting for
 _ENUM_DOUBLE MUX's second channel

3.16.40-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Chen-Yu Tsai <wens@...e.org>

commit 071133a209354f39d4e5785d5a6a390e03241841 upstream.

The value for the second channel in _ENUM_DOUBLE (double channel) MUXs
is not correctly updated, due to using the wrong bit shift.

Use the correct bit shift, so both channels toggle together.

Fixes: 3727b4968453 (ASoC: dapm: Consolidate MUXs and value MUXs)
Signed-off-by: Chen-Yu Tsai <wens@...e.org>
Reviewed-by: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 sound/soc/soc-dapm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2870,7 +2870,7 @@ int snd_soc_dapm_put_enum_double(struct
 	if (e->shift_l != e->shift_r) {
 		if (item[1] > e->items)
 			return -EINVAL;
-		val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_l;
+		val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_r;
 		mask |= e->mask << e->shift_r;
 	}