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-rw-r--r--include/linux/mfd/wm8994/pdata.h7
-rw-r--r--include/linux/mfd/wm8994/registers.h2
-rw-r--r--sound/soc/codecs/wm8994.c7
3 files changed, 14 insertions, 2 deletions
diff --git a/include/linux/mfd/wm8994/pdata.h b/include/linux/mfd/wm8994/pdata.h
index 06869466b7f0..466b1c777aff 100644
--- a/include/linux/mfd/wm8994/pdata.h
+++ b/include/linux/mfd/wm8994/pdata.h
@@ -108,13 +108,16 @@ struct wm8994_pdata {
*/
int micdet_irq;
- /* Microphone biases: 0=0.9*AVDD1 1=0.65*AVVD1 */
+ /* WM8994 microphone biases: 0=0.9*AVDD1 1=0.65*AVVD1 */
unsigned int micbias1_lvl:1;
unsigned int micbias2_lvl:1;
- /* Jack detect threashold levels, see datasheet for values */
+ /* WM8994 jack detect threashold levels, see datasheet for values */
unsigned int jd_scthr:2;
unsigned int jd_thr:2;
+
+ /* WM8958 microphone bias configuration */
+ int micbias[2];
};
#endif
diff --git a/include/linux/mfd/wm8994/registers.h b/include/linux/mfd/wm8994/registers.h
index be072faec6f0..f3ee84284670 100644
--- a/include/linux/mfd/wm8994/registers.h
+++ b/include/linux/mfd/wm8994/registers.h
@@ -63,6 +63,8 @@
#define WM8994_MICBIAS 0x3A
#define WM8994_LDO_1 0x3B
#define WM8994_LDO_2 0x3C
+#define WM8958_MICBIAS1 0x3D
+#define WM8958_MICBIAS2 0x3E
#define WM8994_CHARGE_PUMP_1 0x4C
#define WM8958_CHARGE_PUMP_2 0x4D
#define WM8994_CLASS_W_1 0x51
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 1ad6e3db7804..9b9c15ffb7d2 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -2855,6 +2855,13 @@ static void wm8994_handle_pdata(struct wm8994_priv *wm8994)
else
snd_soc_add_controls(wm8994->codec, wm8994_eq_controls,
ARRAY_SIZE(wm8994_eq_controls));
+
+ for (i = 0; i < ARRAY_SIZE(pdata->micbias); i++) {
+ if (pdata->micbias[i]) {
+ snd_soc_write(codec, WM8958_MICBIAS1 + i,
+ pdata->micbias[i] & 0xffff);
+ }
+ }
}
/**