Qualcomm WCD9335 Codec is a standalone Hi-Fi audio codec IC, supports Qualcomm Technologies, Inc. (QTI) multimedia solutions, including the MSM8996, MSM8976, and MSM8956 chipsets. It has in-build Soundwire controller, interrupt mux. It supports both I2S/I2C and SLIMbus audio interfaces.
Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- .../devicetree/bindings/mfd/qcom,wcd9335.txt | 130 +++++++++++++++++++++ 1 file changed, 130 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/qcom,wcd9335.txt
diff --git a/Documentation/devicetree/bindings/mfd/qcom,wcd9335.txt b/Documentation/devicetree/bindings/mfd/qcom,wcd9335.txt new file mode 100644 index 000000000000..1f8c9e8d4e3d --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/qcom,wcd9335.txt @@ -0,0 +1,130 @@ +QCOM WCD9335 Codec + +Qualcomm WCD9335 Codec is a standalone Hi-Fi audio codec IC, supports +Qualcomm Technologies, Inc. (QTI) multimedia solutions, including +the MSM8996, MSM8976, and MSM8956 chipsets. It has in-build +Soundwire controller, interrupt mux. It supports both I2S/I2C and +SLIMbus audio interfaces. + +Required properties with SLIMbus Interface: + +- compatible: + Usage: required + Value type: <stringlist> + Definition: For SLIMbus interface it should be "slimMID,PID", + textual representation of Manufacturer ID, Product Code, + shall be in lower case hexadecimal with leading zeroes + suppressed. Refer to slimbus/bus.txt for details. + Should be: + "slim217,1a0" for MSM8996 and APQ8096 SoCs with SLIMbus. + +- reg + Usage: required + Value type: <u32 u32> + Definition: Should be ('Device index', 'Instance ID') + +- interrupts + Usage: required + Value type: <prop-encoded-array> + Definition: Interrupts via WCD INTR1 and INTR2 pins + +- interrupt-names: + Usage: required + Value type: <String array> + Definition: Interrupt names of WCD INTR1 and INTR2 + Should be: "intr1", "intr2" + +- reset-gpio: + Usage: required + Value type: <String Array> + Definition: Reset gpio line + +- qcom,ifd: + Usage: required + Value type: <phandle> + Definition: SLIM interface device + +- clocks: + Usage: required + Value type: <prop-encoded-array> + Definition: See clock-bindings.txt section "consumers". List of + three clock specifiers for mclk, mclk2 and slimbus clock. + +- clock-names: + Usage: required + Value type: <string> + Definition: Must contain "mclk", "mclk2" and "slimbus" strings. + +- vdd-buck-supply: + Usage: required + Value type: <phandle> + Definition: Should contain a reference to the 1.8V buck supply + +- vdd-buck-sido-supply: + Usage: required + Value type: <phandle> + Definition: Should contain a reference to the 1.8V SIDO buck supply + +- vdd-rx-supply: + Usage: required + Value type: <phandle> + Definition: Should contain a reference to the 1.8V rx supply + +- vdd-tx-supply: + Usage: required + Value type: <phandle> + Definition: Should contain a reference to the 1.8V tx supply + +- vdd-vbat-supply: + Usage: Optional + Value type: <phandle> + Definition: Should contain a reference to the vbat supply + +- vdd-micbias-supply: + Usage: required + Value type: <phandle> + Definition: Should contain a reference to the micbias supply + +- vdd-io-supply: + Usage: required + Value type: <phandle> + Definition: Should contain a reference to the 1.8V io supply + +- interrupt-controller: + Usage: required + Definition: Indicating that this is a interrupt controller + +- #interrupt-cells: + Usage: required + Value type: <int> + Definition: should be 1 + += WCD9335 Child devices +Each subnode of WCD9335 represents a functional blocks like +"audio codec", "soundwire Controller" of WCD. The name of the +nodes are not important. The properties of these nodes are +defined by the individual bindings for the specific device. + +Example: + +wcd9335@1 { + compatible = "slim217,1a0"; + reg = <1 0>; + interrupts = <&msmgpio 54 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "intr2" + reset-gpio = <&msmgpio 64 0>; + qcom,ifd = <&wc9335_ifd>; + clock-names = "mclk", "native"; + clocks = <&rpmcc RPM_SMD_DIV_CLK1>, + <&rpmcc RPM_SMD_BB_CLK1>; + vdd-buck-supply = <&pm8994_s4>; + vdd-rx-supply = <&pm8994_s4>; + vdd-buck-sido-supply = <&pm8994_s4>; + vdd-tx-supply = <&pm8994_s4>; + vdd-io-supply = <&pm8994_s4>; + + codec { + compatible = "qcom,wcd9335-codec"; + #sound-dai-cells = <1>; + }; +}