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Message-Id: <1446273737-15262-1-git-send-email-ykk@rock-chips.com>
Date:	Sat, 31 Oct 2015 14:42:17 +0800
From:	Yakir Yang <ykk@...k-chips.com>
To:	Inki Dae <inki.dae@...sung.com>,
	Andrzej Hajda <a.hajda@...sung.com>,
	Joonyoung Shim <jy0922.shim@...sung.com>,
	Seung-Woo Kim <sw0312.kim@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Jingoo Han <jingoohan1@...il.com>,
	Thierry Reding <treding@...dia.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Rob Herring <robh+dt@...nel.org>,
	Heiko Stuebner <heiko@...ech.de>,
	Mark Yao <mark.yao@...k-chips.com>
Cc:	Russell King <linux@....linux.org.uk>, djkurtz@...omium.org,
	dianders@...omium.org, Sean Paul <seanpaul@...omium.org>,
	Kukjin Kim <kgene@...nel.org>,
	Kumar Gala <galak@...eaurora.org>, emil.l.velikov@...il.com,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Gustavo Padovan <gustavo.padovan@...labora.co.uk>,
	Kishon Vijay Abraham I <kishon@...com>,
	Pawel Moll <pawel.moll@....com>, ajaynumb@...il.com,
	robherring2@...il.com, javier@....samsung.com,
	Andy Yan <andy.yan@...k-chips.com>,
	Yakir Yang <ykk@...k-chips.com>,
	dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v10 09/17] dt-bindings: add document for rockchip variant of analogix_dp

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.

Reviewed-by: Heiko Stuebner <heiko@...ech.de>
Signed-off-by: Yakir Yang <ykk@...k-chips.com>
---
Changes in v10:
- Removed the duplicated signed-of.

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@...70000 {
+		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>;
+			};
+		};
+	};
-- 
1.9.1


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