On 10/31/2015 02:30 PM, Yakir Yang wrote:
Rockchip DP driver is a helper driver of analogix_dp coder driver, so most of the DT property should be descriped in analogix_dp document.
Signed-off-by: Yakir Yang ykk@rock-chips.com
Signed-off-by: Yakir Yang ykk@rock-chips.com Reviewed-by: Heiko Stuebner heiko@sntech.de
Sorry about the duplicate signed-off, I would send a new version now.
Changes in v9:
- Document more details for 'ports' property.
Changes in v8:
- Modify the commit subject name. (Heiko)
Changes in v7: None Changes in v6: None Changes in v5:
- Split binding doc's from driver changes. (Rob)
- Add eDP hotplug pinctrl property. (Heiko)
Changes in v4: None Changes in v3: None Changes in v2: None
.../display/rockchip/analogix_dp-rockchip.txt | 91 ++++++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
diff --git a/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt new file mode 100644 index 0000000..dae86c4 --- /dev/null +++ b/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt @@ -0,0 +1,91 @@ +Rockchip RK3288 specific extensions to the Analogix Display Port +================================
+Required properties: +- compatible: "rockchip,rk3288-edp";
+- reg: physical base address of the controller and length
+- clocks: from common clock binding: handle to dp clock.
of memory mapped region.+- clock-names: from common clock binding:
Required elements: "dp" "pclk"+- resets: Must contain an entry for each entry in reset-names.
See ../reset/reset.txt for details.+- pinctrl-names: Names corresponding to the chip hotplug pinctrl states. +- pinctrl-0: pin-control mode. should be <&edp_hpd>
+- reset-names: Must include the name "dp"
+- rockchip,grf: this soc should set GRF regs, so need get grf here.
+- ports: there are 2 port nodes with endpoint definitions as defined in
- Documentation/devicetree/bindings/media/video-interfaces.txt.
- Port 0: contained 2 endpoints, connecting to the ouput of vop.
- Port 1: contained 1 endpoint, connecting to the input of panel.
+For the below properties, please refer to Analogix DP binding document:
- Documentation/devicetree/bindings/drm/bridge/analogix_dp.txt
+- phys (required) +- phy-names (required) +- hpd-gpios (optional) +-------------------------------------------------------------------------------
+Example:
- dp-controller: dp@ff970000 {
compatible = "rockchip,rk3288-dp";reg = <0xff970000 0x4000>;interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;clocks = <&cru SCLK_EDP>, <&cru PCLK_EDP_CTRL>;clock-names = "dp", "pclk";phys = <&dp_phy>;phy-names = "dp";rockchip,grf = <&grf>;resets = <&cru 111>;reset-names = "dp";pinctrl-names = "default";pinctrl-0 = <&edp_hpd>;status = "disabled";ports {#address-cells = <1>;#size-cells = <0>;edp_in: port@0 {reg = <0>;#address-cells = <1>;#size-cells = <0>;edp_in_vopb: endpoint@0 {reg = <0>;remote-endpoint = <&vopb_out_edp>;};edp_in_vopl: endpoint@1 {reg = <1>;remote-endpoint = <&vopl_out_edp>;};};edp_out: port@1 {reg = <1>;#address-cells = <1>;#size-cells = <0>;edp_out_panel: endpoint {reg = <0>;remote-endpoint = <&panel_in_edp>};};};- };
- pinctrl {
edp {edp_hpd: edp-hpd {rockchip,pins = <7 11 RK_FUNC_2 &pcfg_pull_none>;};};- };