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- Device-Tree bindings for drm hdmi driver
- Required properties:
- - compatible: value should be one among the following:
- 1) "samsung,exynos5-hdmi" <DEPRECATED>
- 2) "samsung,exynos4210-hdmi"
- 3) "samsung,exynos4212-hdmi"
- 4) "samsung,exynos5420-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) optional flags and pull up/down.
- - clocks: list of clock IDs from SoC clock driver.
- a) hdmi: Gate of HDMI IP bus clock.
- b) sclk_hdmi: Gate of HDMI special clock.
- c) sclk_pixel: Pixel special clock, one of the two possible inputs of
- HDMI clock mux.
- d) sclk_hdmiphy: HDMI PHY clock output, one of two possible inputs of
- HDMI clock mux.
- e) mout_hdmi: It is required by the driver to switch between the 2
- parents i.e. sclk_pixel and sclk_hdmiphy. If hdmiphy is stable
- after configuration, parent is set to sclk_hdmiphy else
- sclk_pixel.
- - clock-names: aliases as per driver requirements for above clock IDs:
- "hdmi", "sclk_hdmi", "sclk_pixel", "sclk_hdmiphy" and "mout_hdmi".
- - ddc: phandle to the hdmi ddc node
- - phy: phandle to the hdmi phy node
- - samsung,syscon-phandle: phandle for system controller node for PMU.
- Example:
- hdmi {
- compatible = "samsung,exynos4212-hdmi";
- reg = <0x14530000 0x100000>;
- interrupts = <0 95 0>;
- hpd-gpio = <&gpx3 7 1>;
- ddc = <&hdmi_ddc_node>;
- phy = <&hdmi_phy_node>;
- samsung,syscon-phandle = <&pmu_system_controller>;
- };
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