[PATCH v8 2/2] mfd: add documentation for atmel-hlcdc DT bindings

[Lee Jones]

On Mon, 06 Oct 2014, Boris Brezillon wrote:

> The HLCDC IP available on some Atmel SoCs (i.e. at91sam9n12, at91sam9x5
> family or sama5d3 family) exposes 2 subdevices:
> - a display controller (controlled by a DRM driver)
> - a PWM chip
> 
> This patch adds documentation for atmel-hlcdc DT bindings.
> 
> Signed-off-by: Boris Brezillon <boris.brezillon at free-electrons.com>
> Tested-by: Anthony Harivel <anthony.harivel at emtrion.de>
> Tested-by: Ludovic Desroches <ludovic.desroches at atmel.com>
> ---
>  .../devicetree/bindings/mfd/atmel-hlcdc.txt        | 51 ++++++++++++++++++++++
>  1 file changed, 51 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/atmel-hlcdc.txt

Applied for v3.19.

> diff --git a/Documentation/devicetree/bindings/mfd/atmel-hlcdc.txt b/Documentation/devicetree/bindings/mfd/atmel-hlcdc.txt
> new file mode 100644
> index 0000000..f64de95a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/atmel-hlcdc.txt
> @@ -0,0 +1,51 @@
> +Device-Tree bindings for Atmel's HLCDC (High LCD Controller) MFD driver
> +
> +Required properties:
> + - compatible: value should be one of the following:
> +   "atmel,sama5d3-hlcdc"
> + - reg: base address and size of the HLCDC device registers.
> + - clock-names: the name of the 3 clocks requested by the HLCDC device.
> +   Should contain "periph_clk", "sys_clk" and "slow_clk".
> + - clocks: should contain the 3 clocks requested by the HLCDC device.
> + - interrupts: should contain the description of the HLCDC interrupt line
> +
> +The HLCDC IP exposes two subdevices:
> + - a PWM chip: see ../pwm/atmel-hlcdc-pwm.txt
> + - a Display Controller: see ../drm/atmel-hlcdc-dc.txt
> +
> +Example:
> +
> +	hlcdc: hlcdc at f0030000 {
> +		compatible = "atmel,sama5d3-hlcdc";
> +		reg = <0xf0030000 0x2000>;
> +		clocks = <&lcdc_clk>, <&lcdck>, <&clk32k>;
> +		clock-names = "periph_clk","sys_clk", "slow_clk";
> +		interrupts = <36 IRQ_TYPE_LEVEL_HIGH 0>;
> +		status = "disabled";
> +
> +		hlcdc-display-controller {
> +			compatible = "atmel,hlcdc-display-controller";
> +			pinctrl-names = "default";
> +			pinctrl-0 = <&pinctrl_lcd_base &pinctrl_lcd_rgb888>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port at 0 {
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				reg = <0>;
> +
> +				hlcdc_panel_output: endpoint at 0 {
> +					reg = <0>;
> +					remote-endpoint = <&panel_input>;
> +				};
> +			};
> +		};
> +
> +		hlcdc_pwm: hlcdc-pwm {
> +			compatible = "atmel,hlcdc-pwm";
> +			pinctrl-names = "default";
> +			pinctrl-0 = <&pinctrl_lcd_pwm>;
> +			#pwm-cells = <3>;
> +		};
> +	};

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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