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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-12-01 17:44:25 +0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-12-01 18:22:01 +0400
commitcd1707a99a2cb43cd8ab0c1952b455b218f15884 (patch)
treebff5dbc48acb806834ce224f5e09c52ee4ca70e6 /include/linux/mfd
parent52ac7ab2475da2b577e4a4616c98b5d1fa3a3cfd (diff)
downloadlinux-cd1707a99a2cb43cd8ab0c1952b455b218f15884.tar.xz
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>
Diffstat (limited to 'include/linux/mfd')
-rw-r--r--include/linux/mfd/wm8994/pdata.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/mfd/wm8994/pdata.h b/include/linux/mfd/wm8994/pdata.h
index 195ade95af38..5256f1f41d7f 100644
--- 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;