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authorNicolin Chen <b42378@freescale.com>2013-06-07 11:23:27 +0800
committerMark Brown <broonie@linaro.org>2013-06-07 10:35:17 +0100
commitd74e9e7090aeb9b61e683e5abf7ca70fa18f846b (patch)
treecea29a98bbf9de15c633d5567145d253246e1c85 /Documentation
parente75a52c6723a61a0d768ee53794e86b7edbe54f0 (diff)
ASoC: wm8962: Add device tree binding
Document the device tree binding for the WM8962 codec, and modify the driver to extract platform data from the device tree, if present. Based on work of WM8903 by Stephen Warren <swarren@nvidia.com> Signed-off-by: Nicolin Chen <b42378@freescale.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/sound/wm8962.txt23
1 files changed, 23 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/wm8962.txt b/Documentation/devicetree/bindings/sound/wm8962.txt
index dceb3b1c2bb7..7f82b59ec8f9 100644
--- a/Documentation/devicetree/bindings/sound/wm8962.txt
+++ b/Documentation/devicetree/bindings/sound/wm8962.txt
@@ -8,9 +8,32 @@ Required properties:
- reg : the I2C address of the device.
+Optional properties:
+ - spk-mono: This is a boolean property. If present, the SPK_MONO bit
+ of R51 (Class D Control 2) gets set, indicating that the speaker is
+ in mono mode.
+
+ - mic-cfg : Default register value for R48 (Additional Control 4).
+ If absent, the default should be the register default.
+
+ - gpio-cfg : A list of GPIO configuration register values. The list must
+ be 6 entries long. If absent, no configuration of these registers is
+ performed. And note that only the value within [0x0, 0xffff] is valid.
+ Any other value is regarded as setting the GPIO register by its reset
+ value 0x0.
+
Example:
codec: wm8962@1a {
compatible = "wlf,wm8962";
reg = <0x1a>;
+
+ gpio-cfg = <
+ 0x0000 /* 0:Default */
+ 0x0000 /* 1:Default */
+ 0x0013 /* 2:FN_DMICCLK */
+ 0x0000 /* 3:Default */
+ 0x8014 /* 4:FN_DMICCDAT */
+ 0x0000 /* 5:Default */
+ >;
};