1The Exynos display port interface should be configured based on
  2the type of panel connected to it.
  3
  4We use two nodes:
  5	-dp-controller node
  6	-dptx-phy node(defined inside dp-controller node)
  7
  8For the DP-PHY initialization, we use the dptx-phy node.
  9Required properties for dptx-phy: deprecated, use phys and phy-names
 10	-reg: deprecated
 11		Base address of DP PHY register.
 12	-samsung,enable-mask: deprecated
 13		The bit-mask used to enable/disable DP PHY.
 14
 15For the Panel initialization, we read data from dp-controller node.
 16Required properties for dp-controller:
 17	-compatible:
 18		should be "samsung,exynos5-dp".
 19	-reg:
 20		physical base address of the controller and length
 21		of memory mapped region.
 22	-interrupts:
 23		interrupt combiner values.
 24	-clocks:
 25		from common clock binding: handle to dp clock.
 26	-clock-names:
 27		from common clock binding: Shall be "dp".
 28	-phys:
 29		from general PHY binding: the phandle for the PHY device.
 30	-phy-names:
 31		from general PHY binding: Should be "dp".
 32
 33Optional properties for dp-controller:
 34	-interlaced:
 35		interlace scan mode.
 36			Progressive if defined, Interlaced if not defined
 37	-vsync-active-high:
 38		VSYNC polarity configuration.
 39			High if defined, Low if not defined
 40	-hsync-active-high:
 41		HSYNC polarity configuration.
 42			High if defined, Low if not defined
 43	-samsung,hpd-gpio:
 44		Hotplug detect GPIO.
 45			Indicates which GPIO should be used for hotplug
 46			detection
 47	-video interfaces: Device node can contain video interface port
 48			nodes according to [1].
 49	- display-timings: timings for the connected panel as described by
 50		Documentation/devicetree/bindings/display/panel/display-timing.txt
 51
 52For the below properties, please refer to Analogix DP binding document:
 53 * Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
 54	-phys (required)
 55	-phy-names (required)
 56	-hpd-gpios (optional)
 57	 force-hpd (optional)
 58
 59Deprecated properties for DisplayPort:
 60-interlaced:            deprecated prop that can parsed from drm_display_mode.
 61-vsync-active-high:     deprecated prop that can parsed from drm_display_mode.
 62-hsync-active-high:     deprecated prop that can parsed from drm_display_mode.
 63-samsung,ycbcr-coeff:   deprecated prop that can parsed from drm_display_mode.
 64-samsung,dynamic-range: deprecated prop that can parsed from drm_display_mode.
 65-samsung,color-space:   deprecated prop that can parsed from drm_display_info.
 66-samsung,color-depth:   deprecated prop that can parsed from drm_display_info.
 67-samsung,link-rate:     deprecated prop that can reading from monitor by dpcd method.
 68-samsung,lane-count:    deprecated prop that can reading from monitor by dpcd method.
 69-samsung,hpd-gpio:      deprecated name for hpd-gpios.
 70
 71-------------------------------------------------------------------------------
 72
 73Example:
 74
 75SOC specific portion:
 76	dp-controller {
 77		compatible = "samsung,exynos5-dp";
 78		reg = <0x145b0000 0x10000>;
 79		interrupts = <10 3>;
 80		interrupt-parent = <&combiner>;
 81		clocks = <&clock 342>;
 82		clock-names = "dp";
 83
 84		phys = <&dp_phy>;
 85		phy-names = "dp";
 86	};
 87
 88Board Specific portion:
 89	dp-controller {
 90		display-timings {
 91			native-mode = <&lcd_timing>;
 92			lcd_timing: 1366x768 {
 93				clock-frequency = <70589280>;
 94				hactive = <1366>;
 95				vactive = <768>;
 96				hfront-porch = <40>;
 97				hback-porch = <40>;
 98				hsync-len = <32>;
 99				vback-porch = <10>;
100				vfront-porch = <12>;
101				vsync-len = <6>;
102			};
103		};
104
105		ports {
106			port@0 {
107				dp_out: endpoint {
108					remote-endpoint = <&bridge_in>;
109				};
110			};
111		};
112	};