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

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>

diff --git a/include/linux/mfd/wm8994/pdata.h b/include/linux/mfd/wm8994/pdata.h
index 195ade95af380b6e6cdb7703d4b29745e1fa3bd8..5256f1f41d7ff89e21b750e9e0809878aaa909d3 100644 (file)
--- a/include/linux/mfd/wm8994/pdata.h
+++ b/include/linux/mfd/wm8994/pdata.h
@@ -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;

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 91f3638ab33fbc55f6e61f0c4e6a65f0bebdd8c6..6bdf8137c7e891cb0010034847b327d37cbe297e 100644 (file)
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -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 {