This patch adds support for device tree based discovery for exynos5
hdmi. Hdmi node is also renamed with "exynos5-hdmi".
Signed-off-by: Rahul Sharma <rahul.sharma@xxxxxxxxxxx>
---
.../devicetree/bindings/drm/exynos/hdmi.txt | 22 ++++++++++++++++++++
arch/arm/boot/dts/exynos5250-smdk5250.dts | 4 +++
arch/arm/boot/dts/exynos5250.dtsi | 6 +++++
arch/arm/mach-exynos/mach-exynos5-dt.c | 2 +
4 files changed, 34 insertions(+), 0 deletions(-)
create mode 100644 Documentation/devicetree/bindings/drm/exynos/hdmi.txt
diff --git a/Documentation/devicetree/bindings/drm/exynos/hdmi.txt b/Documentation/devicetree/bindings/drm/exynos/hdmi.txt
new file mode 100644
index 0000000..589edee
--- /dev/null
+++ b/Documentation/devicetree/bindings/drm/exynos/hdmi.txt
@@ -0,0 +1,22 @@
+Device-Tree bindings for drm hdmi driver
+
+Required properties:
+- compatible: value should be "samsung,exynos5-hdmi".
+- reg: physical base address of the hdmi and length of memory mapped
+ region.
+- interrupts: interrupt number to the cpu.
+- hpd-gpio: following information about the hotplug gpio pin.
+ a) phandle of the gpio controller node.
+ b) pin number within the gpio controller.
+ c) pin function mode.
+ d) optional flags and pull up/down.
+ e) drive strength.
+
+Example:
+
+ hdmi {
+ compatible = "samsung,exynos5-hdmi";
+ reg = <0x14530000 0x100000>;
+ interrupts = <0 95 0>;
+ hpd-gpio = <&gpx3 7 0xf 1 3>;
+ };
diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index a352df4..2a478ab 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -166,4 +166,8 @@
spi_2: spi@12d40000 {
status = "disabled";
};
+
+ hdmi {
+ hpd-gpio = <&gpx3 7 0xf 1 3>;
+ };
};
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index f69e389..e43b321 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -492,4 +492,10 @@
#gpio-cells = <4>;
};
};
+
+ hdmi {
+ compatible = "samsung,exynos5-hdmi";
+ reg = <0x14530000 0x100000>;
+ interrupts = <0 95 0>;
+ };
};
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index ce82f30..f37d676 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -64,6 +64,8 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA0, "dma-pl330.0", NULL),
OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA1, "dma-pl330.1", NULL),
OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_MDMA1, "dma-pl330.2", NULL),
+ OF_DEV_AUXDATA("samsung,exynos5-hdmi", 0x14530000,
+ "exynos5-hdmi", NULL),
{},
};
--
1.7.0.4
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