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Diffstat (limited to 'Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt')
-rw-r--r-- | Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt b/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt new file mode 100644 index 000000000000..1fd8cf9cbfac --- /dev/null +++ b/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt @@ -0,0 +1,43 @@ +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>; + }; |