From 186ab1f13c76b0a42545aef070d109b5b7c4d8c7 Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi@ti.com>
Date: Wed, 5 Oct 2011 10:29:22 +0300
Subject: [PATCH] --- yaml --- r: 270781 b: refs/heads/master c:
 30d86ba47f79d566fffe9ba577caf247d06a3796 h: refs/heads/master i:   270779:
 ea082645c0d156f651b07fa5f4cf4a18cd0c03b5 v: v3

---
 [refs]                    |  2 +-
 trunk/include/sound/soc.h | 17 +++++++++++++++--
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/[refs] b/[refs]
index ad544a4f3ea9..d9b0e460e116 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 08a1ed76f5cf94bef07cb370b079760553a87b4b
+refs/heads/master: 30d86ba47f79d566fffe9ba577caf247d06a3796
diff --git a/trunk/include/sound/soc.h b/trunk/include/sound/soc.h
index 8ab1cfed1067..88ff2d899a4d 100644
--- a/trunk/include/sound/soc.h
+++ b/trunk/include/sound/soc.h
@@ -30,8 +30,9 @@
  */
 #define SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, xmax, xinvert) \
 	((unsigned long)&(struct soc_mixer_control) \
-	{.reg = xreg, .shift = shift_left, .rshift = shift_right, \
-	.max = xmax, .platform_max = xmax, .invert = xinvert})
+	{.reg = xreg, .rreg = xreg, .shift = shift_left, \
+	.rshift = shift_right, .max = xmax, .platform_max = xmax, \
+	.invert = xinvert})
 #define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) \
 	SOC_DOUBLE_VALUE(xreg, xshift, xshift, xmax, xinvert)
 #define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
@@ -947,6 +948,18 @@ static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card)
 	INIT_LIST_HEAD(&card->dapm_list);
 }
 
+static inline bool snd_soc_volsw_is_stereo(struct soc_mixer_control *mc)
+{
+	if (mc->reg == mc->rreg && mc->shift == mc->rshift)
+		return 0;
+	/*
+	 * mc->reg == mc->rreg && mc->shift != mc->rshift, or
+	 * mc->reg != mc->rreg means that the control is
+	 * stereo (bits in one register or in two registers)
+	 */
+	return 1;
+}
+
 int snd_soc_util_init(void);
 void snd_soc_util_exit(void);