Re: [v8 3/4] dt-bindings: Add Rockchip rk817 audio CODEC support

[Rob Herring <robh@kernel.org>]

On Wed, Apr 21, 2021 at 12:59:05PM -0500, Chris Morgan wrote:
> From: Chris Morgan <macromorgan@hotmail.com>
> 
> Create dt-binding documentation to document rk817 codec.
> New property name of rockchip,mic-in-differential added to control if
> the microphone is in differential mode or not.
> 
> Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
> ---
> Changes in v8:
>  - Added additional documentation for missing properties of #sound-dai-cells,
>    interrupt-parent, and wakeup-source for mfd documentation.
>  - Corrected order of elements descriptions in device tree documentation.
>  - Changed name of "mic-in-differential" to "rockchip,mic-in-differential".
>  - Changed name of sound card from "rockchip,rk817-codec" to "Analog".
>  - Removed unused resets and reset-names from the i2s1_2ch node.
> Changes in v7:
>  - Removed ifdef around register definitions for MFD.
>  - Replaced codec documentation with updates to MFD documentation.
>  - Reordered elements in example to comply with upstream rules.
>  - Added binding update back for Odroid Go Advance as requested.
>  - Submitting patches from gmail now.
> Changes in v6:
>  - Included additional project maintainers for correct subsystems.
>  - Removed unneeded compatible from DT documentation.
>  - Removed binding update for Odroid Go Advance (will do in seperate series).
> Changes in v5:
>  - Move register definitions from rk817_codec.h to main rk808.h register
>    definitions.
>  - Add volatile register for codec bits.
>  - Add default values for codec bits.
>  - Removed of_compatible from mtd driver (not necessary).
>  - Switched to using parent regmap instead of private regmap for codec.
> Changes in v4:
>  - Created set_pll() call.
>  - Created user visible gain control in mic.
>  - Check for return value of clk_prepare_enable().
>  - Removed duplicate clk_prepare_enable().
>  - Split DT documentation to separate commit.
> Changes in v3:
>  - Use DAPM macros to set audio path.
>  - Updated devicetree binding (as every rk817 has this codec chip).
>  - Changed documentation to yaml format.
>  - Split MFD changes to separate commit.
> Changes in v2:
>  - Fixed audio path registers to solve some bugs.
> 
>  .../devicetree/bindings/mfd/rk808.txt         | 188 ++++++++++++++++++
>  1 file changed, 188 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/rk808.txt b/Documentation/devicetree/bindings/mfd/rk808.txt
> index 04df07f6f793..e27fb2c1ebe0 100644
> --- a/Documentation/devicetree/bindings/mfd/rk808.txt
> +++ b/Documentation/devicetree/bindings/mfd/rk808.txt
> @@ -14,6 +14,8 @@ Required properties:
>  - compatible: "rockchip,rk817"
>  - compatible: "rockchip,rk818"
>  - reg: I2C slave address
> +- interrupt-parent: Should contain a phandle to the correct interrupt
> +		    controller node.

This can be in any parent node, so generally not required. IOW, you 
don't need to document it.

Otherwise,

Acked-by: Rob Herring <robh@kernel.org>

(Really, this should be converted to schema, but given it's on v8 
already that can come later.)

>  - interrupts: the interrupt outputs of the controller.
>  - #clock-cells: from common clock binding; shall be set to 1 (multiple clock
>    outputs). See <dt-bindings/clock/rockchip,rk808.h> for clock IDs.
> @@ -23,6 +25,7 @@ Optional properties:
>    default output clock name
>  - rockchip,system-power-controller: Telling whether or not this pmic is controlling
>    the system power.
> +- wakeup-source: Device can be used as a wakeup source.
>  
>  Optional RK805 properties:
>  - vcc1-supply:  The input supply for DCDC_REG1
> @@ -63,8 +66,16 @@ Optional RK809 properties:
>  - vcc9-supply:  The input supply for DCDC_REG5, SWITCH_REG2
>  
>  Optional RK817 properties:
> +- clocks:	The input clock for the audio codec
> +- clock-names:	The clock name for the codec clock. Should be "mclk".
> +- #sound-dai-cells: Needed for the interpretation of sound dais. Should be 0.
> +
>  - vcc8-supply:  The input supply for BOOST
>  - vcc9-supply:  The input supply for OTG_SWITCH
> +- codec:	The child node for the codec to hold additional properties.
> +
> +- rockchip,mic-in-differential: Telling if the microphone uses differential
> +				mode. Should be under the codec child node.
>  
>  Optional RK818 properties:
>  - vcc1-supply:  The input supply for DCDC_REG1
> @@ -275,3 +286,180 @@ Example:
>  			};
>  		};
>  	};
> +
> +	rk817: pmic@20 {
> +		compatible = "rockchip,rk817";
> +		reg = <0x20>;
> +		interrupt-parent = <&gpio0>;
> +		interrupts = <RK_PB2 IRQ_TYPE_LEVEL_LOW>;
> +		clock-output-names = "rk808-clkout1", "xin32k";
> +		clock-names = "mclk";
> +		clocks = <&cru SCLK_I2S1_OUT>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pmic_int>, <&i2s1_2ch_mclk>;
> +		wakeup-source;
> +		#clock-cells = <1>;
> +		#sound-dai-cells = <0>;
> +
> +		vcc1-supply = <&vccsys>;
> +		vcc2-supply = <&vccsys>;
> +		vcc3-supply = <&vccsys>;
> +		vcc4-supply = <&vccsys>;
> +		vcc5-supply = <&vccsys>;
> +		vcc6-supply = <&vccsys>;
> +		vcc7-supply = <&vccsys>;
> +
> +		regulators {
> +			vdd_logic: DCDC_REG1 {
> +				regulator-name = "vdd_logic";
> +				regulator-min-microvolt = <950000>;
> +				regulator-max-microvolt = <1150000>;
> +				regulator-ramp-delay = <6001>;
> +				regulator-always-on;
> +				regulator-boot-on;
> +
> +				regulator-state-mem {
> +					regulator-on-in-suspend;
> +					regulator-suspend-microvolt = <950000>;
> +				};
> +			};
> +
> +			vdd_arm: DCDC_REG2 {
> +				regulator-name = "vdd_arm";
> +				regulator-min-microvolt = <950000>;
> +				regulator-max-microvolt = <1350000>;
> +				regulator-ramp-delay = <6001>;
> +				regulator-always-on;
> +				regulator-boot-on;
> +
> +				regulator-state-mem {
> +					regulator-off-in-suspend;
> +					regulator-suspend-microvolt = <950000>;
> +				};
> +			};
> +
> +			vcc_ddr: DCDC_REG3 {
> +				regulator-name = "vcc_ddr";
> +				regulator-always-on;
> +				regulator-boot-on;
> +
> +				regulator-state-mem {
> +					regulator-on-in-suspend;
> +				};
> +			};
> +
> +			vcc_3v3: DCDC_REG4 {
> +				regulator-name = "vcc_3v3";
> +				regulator-min-microvolt = <3300000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-always-on;
> +				regulator-boot-on;
> +
> +				regulator-state-mem {
> +					regulator-off-in-suspend;
> +					regulator-suspend-microvolt = <3300000>;
> +				};
> +			};
> +
> +			vcc_1v8: LDO_REG2 {
> +				regulator-name = "vcc_1v8";
> +				regulator-min-microvolt = <1800000>;
> +				regulator-max-microvolt = <1800000>;
> +				regulator-always-on;
> +				regulator-boot-on;
> +
> +				regulator-state-mem {
> +					regulator-on-in-suspend;
> +					regulator-suspend-microvolt = <1800000>;
> +				};
> +			};
> +
> +			vdd_1v0: LDO_REG3 {
> +				regulator-name = "vdd_1v0";
> +				regulator-min-microvolt = <1000000>;
> +				regulator-max-microvolt = <1000000>;
> +				regulator-always-on;
> +				regulator-boot-on;
> +
> +				regulator-state-mem {
> +					regulator-on-in-suspend;
> +					regulator-suspend-microvolt = <1000000>;
> +				};
> +			};
> +
> +			vcc3v3_pmu: LDO_REG4 {
> +				regulator-name = "vcc3v3_pmu";
> +				regulator-min-microvolt = <3300000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-always-on;
> +				regulator-boot-on;
> +
> +				regulator-state-mem {
> +					regulator-on-in-suspend;
> +					regulator-suspend-microvolt = <3300000>;
> +				};
> +			};
> +
> +			vccio_sd: LDO_REG5 {
> +				regulator-name = "vccio_sd";
> +				regulator-min-microvolt = <1800000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-always-on;
> +				regulator-boot-on;
> +
> +				regulator-state-mem {
> +					regulator-on-in-suspend;
> +					regulator-suspend-microvolt = <3300000>;
> +				};
> +			};
> +
> +			vcc_sd: LDO_REG6 {
> +				regulator-name = "vcc_sd";
> +				regulator-min-microvolt = <3300000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-boot-on;
> +
> +				regulator-state-mem {
> +					regulator-on-in-suspend;
> +					regulator-suspend-microvolt = <3300000>;
> +				};
> +			};
> +
> +			vcc_bl: LDO_REG7 {
> +				regulator-name = "vcc_bl";
> +				regulator-min-microvolt = <3300000>;
> +				regulator-max-microvolt = <3300000>;
> +
> +				regulator-state-mem {
> +					regulator-off-in-suspend;
> +					regulator-suspend-microvolt = <3300000>;
> +				};
> +			};
> +
> +			vcc_lcd: LDO_REG8 {
> +				regulator-name = "vcc_lcd";
> +				regulator-min-microvolt = <2800000>;
> +				regulator-max-microvolt = <2800000>;
> +
> +				regulator-state-mem {
> +					regulator-off-in-suspend;
> +					regulator-suspend-microvolt = <2800000>;
> +				};
> +			};
> +
> +			vcc_cam: LDO_REG9 {
> +				regulator-name = "vcc_cam";
> +				regulator-min-microvolt = <3000000>;
> +				regulator-max-microvolt = <3000000>;
> +
> +				regulator-state-mem {
> +					regulator-off-in-suspend;
> +					regulator-suspend-microvolt = <3000000>;
> +				};
> +			};
> +		};
> +
> +		rk817_codec: codec {
> +			rockchip,mic-in-differential;
> +		};
> +	};
> -- 
> 2.25.1
>