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Diffstat (limited to 'Documentation/devicetree/bindings/sound/cs4271.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/cs4271.txt | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/Documentation/devicetree/bindings/sound/cs4271.txt b/Documentation/devicetree/bindings/sound/cs4271.txt deleted file mode 100644 index 6e699ceabacd..000000000000 --- a/Documentation/devicetree/bindings/sound/cs4271.txt +++ /dev/null @@ -1,57 +0,0 @@ -Cirrus Logic CS4271 DT bindings - -This driver supports both the I2C and the SPI bus. - -Required properties: - - - compatible: "cirrus,cs4271" - -For required properties on SPI, please consult -Documentation/devicetree/bindings/spi/spi-bus.txt - -Required properties on I2C: - - - reg: the i2c address - - -Optional properties: - - - reset-gpio: a GPIO spec to define which pin is connected to the chip's - !RESET pin - - cirrus,amuteb-eq-bmutec: When given, the Codec's AMUTEB=BMUTEC flag - is enabled. - - cirrus,enable-soft-reset: - The CS4271 requires its LRCLK and MCLK to be stable before its RESET - line is de-asserted. That also means that clocks cannot be changed - without putting the chip back into hardware reset, which also requires - a complete re-initialization of all registers. - - One (undocumented) workaround is to assert and de-assert the PDN bit - in the MODE2 register. This workaround can be enabled with this DT - property. - - Note that this is not needed in case the clocks are stable - throughout the entire runtime of the codec. - - - vd-supply: Digital power - - vl-supply: Logic power - - va-supply: Analog Power - -Examples: - - codec_i2c: cs4271@10 { - compatible = "cirrus,cs4271"; - reg = <0x10>; - reset-gpio = <&gpio 23 0>; - vd-supply = <&vdd_3v3_reg>; - vl-supply = <&vdd_3v3_reg>; - va-supply = <&vdd_3v3_reg>; - }; - - codec_spi: cs4271@0 { - compatible = "cirrus,cs4271"; - reg = <0x0>; - reset-gpio = <&gpio 23 0>; - spi-max-frequency = <6000000>; - }; - |