[PATCH v6 3/4] arm/dts/ls1021a: Add DCU dts node

Jianwei Wang
2015-07-10T07:26:54Z

Add DCU node, DCU is a display controller of Freescale
named 2D-ACE.

Signed-off-by: Alison Wang <b18965@freescale.com>
Signed-off-by: Xiubo Li <lixiubo@cmss.chinamobile.com>
Signed-off-by: Jianwei Wang <jianwei.wang@freescale.com>
---
.../devicetree/bindings/drm/fsl-dcu/fsl,dcu.txt | 49 ++++++++++++++++++++++
MAINTAINERS | 1 +
arch/arm/boot/dts/ls1021a.dtsi | 10 +++++
3 files changed, 60 insertions(+)
create mode 100644 Documentation/devicetree/bindings/drm/fsl-dcu/fsl,dcu.txt

diff --git a/Documentation/devicetree/bindings/drm/fsl-dcu/fsl,dcu.txt b/Documentation/devicetree/bindings/drm/fsl-dcu/fsl,dcu.txt
new file mode 100644
index 0000000..d65631d
--- /dev/null
+++ b/Documentation/devicetree/bindings/drm/fsl-dcu/fsl,dcu.txt
@@ -0,0 +1,49 @@
+Device Tree bindings for Freescale DCU DRM Driver
+
+Required properties:
+- compatible: Should be one of
+ * "fsl,ls1021a-dcu".
+ * "fsl,vf610-dcu".
+- reg: Address and length of the register set for dcu.
+- clocks: From common clock binding: handle to dcu clock.
+- clock-names: From common clock binding: Shall be "dcu".
+- display: The phandle to display node.
+
+Required properties:
+- bits-per-pixel: <16> for RGB565,
+ <24> for RGB888,
+ <32> for RGB8888.
+
+Required timing node for dispplay sub-node:
+- display-timings: Refer to binding doc display-timing.txt for details.
+
+Examples:
+dcu: dcu at 2ce0000 {
+ compatible = "fsl,ls1021a-dcu";
+ reg = <0x0 0x2ce0000 0x0 0x10000>;
+ clocks = <&platform_clk 0>;
+ clock-names = "dcu";
+ big-endian;
+ display = <&display>;
+
+ display: display at 0 {
+ bits-per-pixel = <24>;
+
+ display-timings {
+ native-mode = <&timing0>;
+ timing0: nl4827hc19 {
+ clock-frequency = <10870000>;
+ hactive = <480>;
+ vactive = <272>;
+ hback-porch = <2>;
+ hfront-porch = <2>;
+ vback-porch = <1>;
+ vfront-porch = <1>;
+ hsync-len = <41>;
+ vsync-len = <2>;
+ hsync-active = <1>;
+ vsync-active = <1>;
+ };
+ };
+ };
+};
diff --git a/MAINTAINERS b/MAINTAINERS
index 9047c2b..b8d6ef5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3410,6 +3410,7 @@ M: Alison Wang <alison.wang@freescale.com>
L: dri-devel at lists.freedesktop.org
S: Supported
F: drivers/gpu/drm/fsl-dcu/
+F: Documentation/devicetree/bindings/drm/fsl-dcu/
F: Documentation/devicetree/bindings/panel/nec,nl4827hc19_05b.txt

DRM DRIVERS FOR NVIDIA TEGRA
diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi
index c70bb27..6d6e3e2 100644
--- a/arch/arm/boot/dts/ls1021a.dtsi
+++ b/arch/arm/boot/dts/ls1021a.dtsi
@@ -383,6 +383,16 @@
<&platform_clk 1>;
};

+ dcu: dcu at 2ce0000 {
+ compatible = "fsl,ls1021a-dcu";
+ reg = <0x0 0x2ce0000 0x0 0x10000>;
+ interrupts = <GIC_SPI 172 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&platform_clk 0>;
+ clock-names = "dcu";
+ big-endian;
+ status = "disabled";
+ };
+
mdio0: mdio at 2d24000 {
compatible = "gianfar";
device_type = "mdio";
--
2.1.0.27.g96db324