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Message-ID: <CABXOdTeYAQOBMX=v4cuCYe=f1d_5y7RFjW_zjOyrr85o91aUnA@mail.gmail.com>
Date: Wed, 17 Aug 2016 10:28:59 -0700
From: Guenter Roeck <groeck@...gle.com>
To: Chris Zhong <zyw@...k-chips.com>
Cc: Douglas Anderson <dianders@...omium.org>,
Tomasz Figa <tfiga@...omium.org>,
Heiko Stübner <heiko@...ech.de>,
姚智情 <yzq@...k-chips.com>,
Guenter Roeck <groeck@...omium.org>,
MyungJoo Ham <myungjoo.ham@...sung.com>,
Chanwoo Choi <cw00.choi@...sung.com>,
wulf <wulf@...k-chips.com>,
Stéphane Marchesin <marcheu@...omium.org>,
"open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
devicetree@...r.kernel.org, Kumar Gala <galak@...eaurora.org>,
linux-kernel <linux-kernel@...r.kernel.org>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v12 PATCH 4/5] Documentation: bindings: add dt
documentation for cdn DP controller
On Mon, Aug 15, 2016 at 12:55 PM, Chris Zhong <zyw@...k-chips.com> wrote:
> This patch adds a binding that describes the cdn DP controller for
> rk3399.
>
> Signed-off-by: Chris Zhong <zyw@...k-chips.com>
> Acked-by: Rob Herring <robh@...nel.org>
Reviewed-by: Guenter Roeck <groeck@...omium.org>
>
> ---
>
> Changes in v12: None
> Changes in v11:
> - refer dp phy
>
> Changes in v10:
> - add pclk_vio_grf clock
>
> Changes in v9:
> - modify the reference phy = <&tcphy0 0>, <&tcphy1 0>;
>
> Changes in v8: None
> Changes in v7: None
> Changes in v6:
> - add assigned-clocks and assigned-clock-rates
> - add power-domains
>
> Changes in v5: None
> Changes in v4:
> - add a reset node
> - support 2 phys
>
> Changes in v3:
> - add SoC specific compatible string
> - remove reg = <1>;
>
> Changes in v2: None
> Changes in v1:
> - add extcon node description
> - add #sound-dai-cells description
>
> .../bindings/display/rockchip/cdn-dp-rockchip.txt | 74 ++++++++++++++++++++++
> 1 file changed, 74 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt
>
> diff --git a/Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt
> new file mode 100644
> index 0000000..d34a56e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt
> @@ -0,0 +1,74 @@
> +Rockchip RK3399 specific extensions to the cdn Display Port
> +================================
> +
> +Required properties:
> +- compatible: must be "rockchip,rk3399-cdn-dp"
> +
> +- reg: physical base address of the controller and length
> +
> +- clocks: from common clock binding: handle to dp clock.
> +
> +- clock-names: from common clock binding:
> + Required elements: "core-clk" "pclk" "spdif" "grf"
> +
> +- resets : a list of phandle + reset specifier pairs
> +- reset-names : string reset name, must be:
> + "spdif"
> +- power-domains : power-domain property defined with a phandle
> + to respective power domain.
> +- assigned-clocks: main clock, should be <&cru SCLK_DP_CORE>
> +- assigned-clock-rates : the DP core clk frequency, shall be: 100000000
> +
> +- rockchip,grf: this soc should set GRF regs, so need get grf here.
> +
> +- ports: contain a port nodes with endpoint definitions as defined in
> + Documentation/devicetree/bindings/media/video-interfaces.txt.
> + contained 2 endpoints, connecting to the output of vop.
> +
> +- phys: from general PHY binding: the phandle for the PHY device.
> +
> +- extcon: extcon specifier for the Power Delivery
> +
> +- #sound-dai-cells = it must be 1 if your system is using 2 DAIs: I2S, SPDIF
> +
> +-------------------------------------------------------------------------------
> +
> +Example:
> + cdn_dp: dp@...00000 {
> + compatible = "rockchip,rk3399-cdn-dp";
> + reg = <0x0 0xfec00000 0x0 0x100000>;
> + interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&cru SCLK_DP_CORE>, <&cru PCLK_DP_CTRL>,
> + <&cru SCLK_SPDIF_REC_DPTX>, <&cru PCLK_VIO_GRF>;
> + clock-names = "core-clk", "pclk", "spdif", "grf";
> + assigned-clocks = <&cru SCLK_DP_CORE>;
> + assigned-clock-rates = <100000000>;
> + power-domains = <&power RK3399_PD_HDCP>;
> + phys = <&tcphy0_dp>, <&tcphy1_dp>;
> + resets = <&cru SRST_DPTX_SPDIF_REC>;
> + reset-names = "spdif";
> + extcon = <&fusb0>, <&fusb1>;
> + rockchip,grf = <&grf>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + #sound-dai-cells = <1>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + dp_in: port {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + dp_in_vopb: endpoint@0 {
> + reg = <0>;
> + remote-endpoint = <&vopb_out_dp>;
> + };
> +
> + dp_in_vopl: endpoint@1 {
> + reg = <1>;
> + remote-endpoint = <&vopl_out_dp>;
> + };
> + };
> + };
> + };
> --
> 1.9.1
>
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