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ASoC: Add platform data for WM8958/WM1811 microphone detection rates

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Allow systems to override the default microphone detection rates using
platform data in case the settings are not suitable (eg, due to an
unusually noisy jack).

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2011-12-01 13:44:25 +00:00
parent 52ac7ab247
commit cd1707a99a
2 changed files with 24 additions and 8 deletions
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20
include/linux/mfd/wm8994/pdata.h
View file

@ -113,6 +113,23 @@ struct wm8958_enh_eq_cfg {
u16 regs[WM8958_ENH_EQ_REGS];
};
/**
* Microphone detection rates, used to tune response rates and power
* consumption for WM8958/WM1811 microphone detection.
*
* @sysclk: System clock rate to use this configuration for.
* @idle: True if this configuration should use when no accessory is detected,
* false otherwise.
* @start: Value for MICD_BIAS_START_TIME register field (not shifted).
* @rate: Value for MICD_RATE register field (not shifted).
*/
struct wm8958_micd_rate {
int sysclk;
bool idle;
int start;
int rate;
};
struct wm8994_pdata {
int gpio_base;
@ -144,6 +161,9 @@ struct wm8994_pdata {
int num_enh_eq_cfgs;
struct wm8958_enh_eq_cfg *enh_eq_cfgs;
int num_micd_rates;
struct wm8958_micd_rate *micd_rates;
/* LINEOUT can be differential or single ended */
unsigned int lineout1_diff:1;
unsigned int lineout2_diff:1;

12
sound/soc/codecs/wm8994.c
View file

@ -60,13 +60,6 @@ static int wm8994_retune_mobile_base[] = {
static void wm8958_default_micdet(u16 status, void *data);
struct wm8958_micd_rate {
int sysclk;
bool idle;
int start;
int rate;
};
static const struct wm8958_micd_rate micdet_rates[] = {
{ 32768, true, 1, 4 },
{ 32768, false, 1, 1 },
@ -100,7 +93,10 @@ static void wm8958_micd_set_rate(struct snd_soc_codec *codec)
else
sysclk = wm8994->aifclk[0];
if (wm8994->jackdet) {
if (wm8994->pdata && wm8994->pdata->micd_rates) {
rates = wm8994->pdata->micd_rates;
num_rates = wm8994->pdata->num_micd_rates;
} else if (wm8994->jackdet) {
rates = jackdet_rates;
num_rates = ARRAY_SIZE(jackdet_rates);
} else {