From mboxrd@z Thu Jan 1 00:00:00 1970 From: zyw@rock-chips.com (Chris Zhong) Date: Tue, 12 Jul 2016 23:09:47 +0800 Subject: [v5 PATCH 4/5] Documentation: bindings: add dt documentation for cdn DP controller In-Reply-To: <1468336188-565-1-git-send-email-zyw@rock-chips.com> References: <1468336188-565-1-git-send-email-zyw@rock-chips.com> Message-ID: <1468336188-565-5-git-send-email-zyw@rock-chips.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This patch adds a binding that describes the cdn DP controller for rk3399. Signed-off-by: Chris Zhong Acked-by: Rob Herring --- 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 | 67 ++++++++++++++++++++++ 1 file changed, 67 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..bf0b2ce --- /dev/null +++ b/Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt @@ -0,0 +1,67 @@ +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" + +- resets : a list of phandle + reset specifier pairs +- reset-names : string reset name, must be: + "spdif" + +- 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 at fec00000 { + compatible = "rockchip,rk3399-cdn-dp"; + reg = <0x0 0xfec00000 0x0 0x100000>; + interrupts = ; + clocks = <&cru SCLK_DP_CORE>, <&cru PCLK_DP_CTRL>, + <&cru SCLK_SPDIF_REC_DPTX>; + clock-names = "core-clk", "pclk", "spdif"; + phys = <&tcphy0>, <&tcphy1>; + 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 at 0 { + reg = <0>; + remote-endpoint = <&vopb_out_dp>; + }; + + dp_in_vopl: endpoint at 1 { + reg = <1>; + remote-endpoint = <&vopl_out_dp>; + }; + }; + }; + }; -- 2.6.3