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ASoC: wm2200: Provide platform data for MICBIAS configuration

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Signed-off-by: Chris Rattray <crattray@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Chris Rattray 2013-02-05 14:40:44 +00:00 committed by Mark Brown
parent 4c97e8fedf
commit 1a78624323
2 changed files with 52 additions and 1 deletions
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22
include/sound/wm2200.h
View File

@ -12,6 +12,7 @@
#define __LINUX_SND_WM2200_H
#define WM2200_GPIO_SET 0x10000
#define WM2200_MAX_MICBIAS 2
enum wm2200_in_mode {
WM2200_IN_SE = 0,
@ -25,6 +26,24 @@ enum wm2200_dmic_sup {
WM2200_DMIC_SUP_MICBIAS2 = 2,
};
enum wm2200_mbias_lvl {
WM2200_MBIAS_LVL_1V5 = 1,
WM2200_MBIAS_LVL_1V8 = 2,
WM2200_MBIAS_LVL_1V9 = 3,
WM2200_MBIAS_LVL_2V0 = 4,
WM2200_MBIAS_LVL_2V2 = 5,
WM2200_MBIAS_LVL_2V4 = 6,
WM2200_MBIAS_LVL_2V5 = 7,
WM2200_MBIAS_LVL_2V6 = 8,
};
struct wm2200_micbias {
enum wm2200_mbias_lvl mb_lvl; /** Regulated voltage */
unsigned int discharge:1; /** Actively discharge */
unsigned int fast_start:1; /** Enable aggressive startup ramp rate */
unsigned int bypass:1; /** Use bypass mode */
};
struct wm2200_pdata {
int reset; /** GPIO controlling /RESET, if any */
int ldo_ena; /** GPIO controlling LODENA, if any */
@ -35,7 +54,8 @@ struct wm2200_pdata {
enum wm2200_in_mode in_mode[3];
enum wm2200_dmic_sup dmic_sup[3];
int micbias_cfg[2]; /** Register value to configure MICBIAS */
/** MICBIAS configurations */
struct wm2200_micbias micbias[WM2200_MAX_MICBIAS];
};
#endif

31
sound/soc/codecs/wm2200.c
View File

@ -2212,6 +2212,7 @@ static int wm2200_i2c_probe(struct i2c_client *i2c,
struct wm2200_priv *wm2200;
unsigned int reg;
int ret, i;
int val;
wm2200 = devm_kzalloc(&i2c->dev, sizeof(struct wm2200_priv),
GFP_KERNEL);
@ -2362,6 +2363,36 @@ static int wm2200_i2c_probe(struct i2c_client *i2c,
regmap_write(wm2200->regmap, WM2200_AUDIO_IF_1_16 + i, i);
}
for (i = 0; i < WM2200_MAX_MICBIAS; i++) {
if (!wm2200->pdata.micbias[i].mb_lvl &&
!wm2200->pdata.micbias[i].bypass)
continue;
/* Apply default for bypass mode */
if (!wm2200->pdata.micbias[i].mb_lvl)
wm2200->pdata.micbias[i].mb_lvl
= WM2200_MBIAS_LVL_1V5;
val = (wm2200->pdata.micbias[i].mb_lvl -1)
<< WM2200_MICB1_LVL_SHIFT;
if (wm2200->pdata.micbias[i].discharge)
val |= WM2200_MICB1_DISCH;
if (wm2200->pdata.micbias[i].fast_start)
val |= WM2200_MICB1_RATE;
if (wm2200->pdata.micbias[i].bypass)
val |= WM2200_MICB1_MODE;
regmap_update_bits(wm2200->regmap,
WM2200_MIC_BIAS_CTRL_1 + i,
WM2200_MICB1_LVL_MASK |
WM2200_MICB1_DISCH |
WM2200_MICB1_MODE |
WM2200_MICB1_RATE, val);
}
for (i = 0; i < ARRAY_SIZE(wm2200->pdata.in_mode); i++) {
regmap_update_bits(wm2200->regmap, wm2200_mic_ctrl_reg[i],
WM2200_IN1_MODE_MASK |