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ASoC: Support configuration of WM8958 microphone bias analogue parameters

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The WM8958 has a different microphone bias architecture to WM8994 so needs
different configuration to WM8994. Support this in platform data.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
This commit is contained in:
Mark Brown 2011-02-21 17:11:59 -08:00
parent 9b7c525dfa
commit 48e028ecca
3 changed files with 14 additions and 2 deletions
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7
include/linux/mfd/wm8994/pdata.h
View file

@ -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

2
include/linux/mfd/wm8994/registers.h
View file

@ -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

7
sound/soc/codecs/wm8994.c
View file

@ -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);
}
}
}
/**