ASoC: Implement support for WM1811A jack detection

The WM1811A features an advanced low power accessory detection subsystem which allows the device to be maintained in a very low power state while the system is idle without sacrificing any accessory detection features. Implement software support for this, automatically managing the power configuration of the device depending on the detected accessory. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
git-mirror · Dec 1, 2011 · af6b6fe · af6b6fe
1 parent 157a75e
commit af6b6fe
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Showing 3 changed files with 264 additions and 19 deletions.
diff --git a/include/linux/mfd/wm8994/registers.h b/include/linux/mfd/wm8994/registers.h
@@ -242,6 +242,7 @@
 #define WM8994_GPIO_4                           0x703
 #define WM8994_GPIO_5                           0x704
 #define WM8994_GPIO_6                           0x705
+#define WM1811_JACKDET_CTRL			0x705
 #define WM8994_GPIO_7                           0x706
 #define WM8994_GPIO_8                           0x707
 #define WM8994_GPIO_9                           0x708
@@ -1852,6 +1853,9 @@
 /*
  * R57 (0x39) - AntiPOP (2)
  */
+#define WM1811_JACKDET_MODE_MASK                0x0180  /* JACKDET_MODE - [8:7] */
+#define WM1811_JACKDET_MODE_SHIFT                    7  /* JACKDET_MODE - [8:7] */
+#define WM1811_JACKDET_MODE_WIDTH                    2  /* JACKDET_MODE - [8:7] */
 #define WM8994_MICB2_DISCH                      0x0100  /* MICB2_DISCH */
 #define WM8994_MICB2_DISCH_MASK                 0x0100  /* MICB2_DISCH */
 #define WM8994_MICB2_DISCH_SHIFT                     8  /* MICB2_DISCH */
@@ -4186,6 +4190,18 @@
 #define WM8994_STL_SEL_SHIFT                         0  /* STL_SEL */
 #define WM8994_STL_SEL_WIDTH                         1  /* STL_SEL */
 
+/*
+ * R1797 (0x705) - JACKDET Ctrl
+ */
+#define WM1811_JACKDET_DB                       0x0100  /* JACKDET_DB */
+#define WM1811_JACKDET_DB_MASK                  0x0100  /* JACKDET_DB */
+#define WM1811_JACKDET_DB_SHIFT                      8  /* JACKDET_DB */
+#define WM1811_JACKDET_DB_WIDTH                      1  /* JACKDET_DB */
+#define WM1811_JACKDET_LVL                      0x0040  /* JACKDET_LVL */
+#define WM1811_JACKDET_LVL_MASK                 0x0040  /* JACKDET_LVL */
+#define WM1811_JACKDET_LVL_SHIFT                     6  /* JACKDET_LVL */
+#define WM1811_JACKDET_LVL_WIDTH                     1  /* JACKDET_LVL */
+
 /*
  * R1824 (0x720) - Pull Control (1)
  */