On 08/05/2014 01:41 AM, Brian Austin wrote:
The patch adds device tree bindings file for the Cirrus Logic CS35L32
Changes for v2:
- Remove Gain Manager from DT and move to driver kcontrol
- Add VP-Supply for regulator
Changes for v3:
- Add regulator disable for error return in i2c_probe
Signed-off-by: Brian Austin <brian.austin@xxxxxxxxxx>
---
.../devicetree/bindings/sound/cs35l32.txt | 62 ++++++++++++++++++++
1 file changed, 62 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/cs35l32.txt
diff --git a/Documentation/devicetree/bindings/sound/cs35l32.txt b/Documentation/devicetree/bindings/sound/cs35l32.txt
new file mode 100644
index 0000000..1417d3f
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/cs35l32.txt
@@ -0,0 +1,62 @@
+CS35L32 audio CODEC
+
+Required properties:
+
+ - compatible : "cirrus,cs35l32"
+
+ - reg : the I2C address of the device for I2C. Address is determined by the level
+ of the AD0 pin. Level 0 is 0x40 while Level 1 is 0x41.
+
+ - VA-supply, VP-supply : power supplies for the device,
+ as covered in Documentation/devicetree/bindings/regulator/regulator.txt.
+
+Optional properties:
+
+ - reset-gpios : a GPIO spec for the reset pin. If specified, it will be
+ deasserted before communication to the codec starts.
+
+ - cirrus,boost-manager : Boost voltage control.
+ 0 = Automatically managed. Boost-converter output voltage is the higher
+ of the two: Class G or adaptive LED voltage.
+ 1 = Automatically managed irrespective of audio, adapting for low-power
+ dissipation when LEDs are ON, and operating in Fixed-Boost Bypass Mode
+ if LEDs are OFF (VBST = VP).
+ 2 = (Default) Boost voltage fixed in Bypass Mode (VBST = VP).
+ 3 = Boost voltage fixed at 5 V.
+
+ - cirrus,sdout-datacfg : Data configuration for dual CS35L32 applications only.
+ Determines the data packed in a two-CS35L32 configuration.
+ 0 = Left/right channels VMON[11:0], IMON[11:0], VPMON[7:0].
+ 1 = Left/right channels VMON[11:0], IMON[11:0], STATUS.
+ 2 = (Default) left/right channels VMON[15:0], IMON [15:0].
+ 3 = Left/right channels VPMON[7:0], STATUS.
+
+ - cirrus,sdout-share : SDOUT sharing. Determines whether one or two CS35L32
+ devices are on board sharing SDOUT.
+ 0 = (Default) One IC.
+ 1 = Two IC's.
+
+ - cirrus,battery-recovery : Low battery nominal recovery threshold, rising VP.
+ 0 = 3.1V
+ 1 = 3.2V
+ 2 = 3.3V (Default)
+ 3 = 3.4V
+
+ - cirrus,battery-threshold : Low battery nominal threshold, falling VP.
+ 0 = 3.1V
+ 1 = 3.2V
+ 2 = 3.3V
+ 3 = 3.4V (Default)
+ 4 = 3.5V
+ 5 = 3.6V
+
Proper indentation for all the properties... These are not readable like this...
Required properties:
- compatible: "cirrus,cs35l32"
- reg: the I2C address of the device for I2C. Address is determined by the level
of the AD0 pin. Level 0 is 0x40 while Level 1 is 0x41.
- VA-supply,VP-supply: power supplies for the device,
as covered in Documentation/devicetree/bindings/regulator/regulator.txt.
Optional properties:
- reset-gpios: a GPIO spec for the reset pin. If specified, it will be
deasserted before communication to the codec starts.
- cirrus,boost-manager:Boost voltage control.
0 = Automatically managed.
Boost-converter output voltage is the higher
of the two: Class G or adaptive LED voltage.
1 = Automatically managed irrespective of audio, adapting for low-power
......
+Example:
+
+codec: codec@40 {
+ compatible = "cirrus,cs35l32";
+ reg = <0x40>;
+ reset-gpios = <&gpio 10 0>;
+ cirrus,boost-manager = <0x03>;
+ cirrus,sdout-datacfg = <0x02>;
+ VA-supply = <®_audio>;
+};
--
Regards,
Varka Bhadram.
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