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Documentation / devicetree / bindings / video / exynos_hdmi.txt




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Based on kernel version 3.16. Page generated on 2014-08-06 21:38 EST.

1	Device-Tree bindings for drm hdmi driver
2	
3	Required properties:
4	- compatible: value should be one among the following:
5		1) "samsung,exynos5-hdmi" <DEPRECATED>
6		2) "samsung,exynos4210-hdmi"
7		3) "samsung,exynos4212-hdmi"
8		4) "samsung,exynos5420-hdmi"
9	- reg: physical base address of the hdmi and length of memory mapped
10		region.
11	- interrupts: interrupt number to the cpu.
12	- hpd-gpio: following information about the hotplug gpio pin.
13		a) phandle of the gpio controller node.
14		b) pin number within the gpio controller.
15		c) optional flags and pull up/down.
16	- clocks: list of clock IDs from SoC clock driver.
17		a) hdmi: Gate of HDMI IP bus clock.
18		b) sclk_hdmi: Gate of HDMI special clock.
19		c) sclk_pixel: Pixel special clock, one of the two possible inputs of
20			HDMI clock mux.
21		d) sclk_hdmiphy: HDMI PHY clock output, one of two possible inputs of
22			HDMI clock mux.
23		e) mout_hdmi: It is required by the driver to switch between the 2
24			parents i.e. sclk_pixel and sclk_hdmiphy. If hdmiphy is stable
25			after configuration, parent is set to sclk_hdmiphy else
26			sclk_pixel.
27	- clock-names: aliases as per driver requirements for above clock IDs:
28		"hdmi", "sclk_hdmi", "sclk_pixel", "sclk_hdmiphy" and "mout_hdmi".
29	- ddc: phandle to the hdmi ddc node
30	- phy: phandle to the hdmi phy node
31	- samsung,syscon-phandle: phandle for system controller node for PMU.
32	
33	Example:
34	
35		hdmi {
36			compatible = "samsung,exynos4212-hdmi";
37			reg = <0x14530000 0x100000>;
38			interrupts = <0 95 0>;
39			hpd-gpio = <&gpx3 7 1>;
40			ddc = <&hdmi_ddc_node>;
41			phy = <&hdmi_phy_node>;
42			samsung,syscon-phandle = <&pmu_system_controller>;
43		};
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