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-rw-r--r--include/sound/soc.h17
1 files changed, 15 insertions, 2 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 8ab1cfed1067..88ff2d899a4d 100644
--- a/include/sound/soc.h
+++ b/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);