ASoC: core: Combine snd_soc_info_volsw/info_volsw_2r functions

Handle the info_volsw/info_volsw_2r in one function.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

include/sound/soc.h

@@ -63,7 +63,7 @@
 					  max, invert) }
 #define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \
 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
-	.info = snd_soc_info_volsw_2r, \
+	.info = snd_soc_info_volsw, \
 	.get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \
 	.private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 					    xmax, xinvert) }
@@ -81,7 +81,7 @@
 	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 		 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 	.tlv.p = (tlv_array), \
-	.info = snd_soc_info_volsw_2r, \
+	.info = snd_soc_info_volsw, \
 	.get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \
 	.private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 					    xmax, xinvert) }
@@ -156,7 +156,7 @@
 	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 		 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 	.tlv.p = (tlv_array), \
-	.info = snd_soc_info_volsw_2r, \
+	.info = snd_soc_info_volsw, \
 	.get = xhandler_get, .put = xhandler_put, \
 	.private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 					    xmax, xinvert) }
@@ -393,8 +393,6 @@ int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol);
 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol);
-int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol,
-	struct snd_ctl_elem_info *uinfo);
 int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol);
 int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol,

sound/soc/soc-core.c

@@ -2248,7 +2248,8 @@ EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext);
  * @kcontrol: mixer control
  * @uinfo: control element information
  *
- * Callback to provide information about a single mixer control.
+ * Callback to provide information about a single mixer control, or a double
+ * mixer control that spans 2 registers.
  *
  * Returns 0 for success.
  */
@@ -2258,8 +2259,6 @@ int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
 	struct soc_mixer_control *mc =
 		(struct soc_mixer_control *)kcontrol->private_value;
 	int platform_max;
-	unsigned int shift = mc->shift;
-	unsigned int rshift = mc->rshift;
 
 	if (!mc->platform_max)
 		mc->platform_max = mc->max;
@@ -2270,7 +2269,7 @@ int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
 	else
 		uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 
-	uinfo->count = shift == rshift ? 1 : 2;
+	uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
 	uinfo->value.integer.min = 0;
 	uinfo->value.integer.max = platform_max;
 	return 0;
@@ -2355,39 +2354,6 @@ int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 }
 EXPORT_SYMBOL_GPL(snd_soc_put_volsw);
 
-/**
- * snd_soc_info_volsw_2r - double mixer info callback
- * @kcontrol: mixer control
- * @uinfo: control element information
- *
- * Callback to provide information about a double mixer control that
- * spans 2 codec registers.
- *
- * Returns 0 for success.
- */
-int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol,
-	struct snd_ctl_elem_info *uinfo)
-{
-	struct soc_mixer_control *mc =
-		(struct soc_mixer_control *)kcontrol->private_value;
-	int platform_max;
-
-	if (!mc->platform_max)
-		mc->platform_max = mc->max;
-	platform_max = mc->platform_max;
-
-	if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
-		uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
-	else
-		uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
-
-	uinfo->count = 2;
-	uinfo->value.integer.min = 0;
-	uinfo->value.integer.max = platform_max;
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r);
-
 /**
  * snd_soc_get_volsw_2r - double mixer get callback
  * @kcontrol: mixer control