0001 The Exynos display port interface should be configured based on
0002 the type of panel connected to it.
0003
0004 We use two nodes:
0005 -dp-controller node
0006 -dptx-phy node(defined inside dp-controller node)
0007
0008 For the DP-PHY initialization, we use the dptx-phy node.
0009 Required properties for dptx-phy: deprecated, use phys and phy-names
0010 -reg: deprecated
0011 Base address of DP PHY register.
0012 -samsung,enable-mask: deprecated
0013 The bit-mask used to enable/disable DP PHY.
0014
0015 For the Panel initialization, we read data from dp-controller node.
0016 Required properties for dp-controller:
0017 -compatible:
0018 should be "samsung,exynos5-dp".
0019 -reg:
0020 physical base address of the controller and length
0021 of memory mapped region.
0022 -interrupts:
0023 interrupt combiner values.
0024 -clocks:
0025 from common clock binding: handle to dp clock.
0026 -clock-names:
0027 from common clock binding: Shall be "dp".
0028 -phys:
0029 from general PHY binding: the phandle for the PHY device.
0030 -phy-names:
0031 from general PHY binding: Should be "dp".
0032
0033 Optional properties for dp-controller:
0034 -interlaced:
0035 interlace scan mode.
0036 Progressive if defined, Interlaced if not defined
0037 -vsync-active-high:
0038 VSYNC polarity configuration.
0039 High if defined, Low if not defined
0040 -hsync-active-high:
0041 HSYNC polarity configuration.
0042 High if defined, Low if not defined
0043 -samsung,hpd-gpio:
0044 Hotplug detect GPIO.
0045 Indicates which GPIO should be used for hotplug
0046 detection
0047 -video interfaces: Device node can contain video interface port
0048 nodes according to [1].
0049 - display-timings: timings for the connected panel as described by
0050 Documentation/devicetree/bindings/display/panel/display-timing.txt
0051
0052 For the below properties, please refer to Analogix DP binding document:
0053 * Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
0054 -phys (required)
0055 -phy-names (required)
0056 -hpd-gpios (optional)
0057 force-hpd (optional)
0058
0059 Deprecated properties for DisplayPort:
0060 -interlaced: deprecated prop that can parsed from drm_display_mode.
0061 -vsync-active-high: deprecated prop that can parsed from drm_display_mode.
0062 -hsync-active-high: deprecated prop that can parsed from drm_display_mode.
0063 -samsung,ycbcr-coeff: deprecated prop that can parsed from drm_display_mode.
0064 -samsung,dynamic-range: deprecated prop that can parsed from drm_display_mode.
0065 -samsung,color-space: deprecated prop that can parsed from drm_display_info.
0066 -samsung,color-depth: deprecated prop that can parsed from drm_display_info.
0067 -samsung,link-rate: deprecated prop that can reading from monitor by dpcd method.
0068 -samsung,lane-count: deprecated prop that can reading from monitor by dpcd method.
0069 -samsung,hpd-gpio: deprecated name for hpd-gpios.
0070
0071 -------------------------------------------------------------------------------
0072
0073 Example:
0074
0075 SOC specific portion:
0076 dp-controller {
0077 compatible = "samsung,exynos5-dp";
0078 reg = <0x145b0000 0x10000>;
0079 interrupts = <10 3>;
0080 interrupt-parent = <&combiner>;
0081 clocks = <&clock 342>;
0082 clock-names = "dp";
0083
0084 phys = <&dp_phy>;
0085 phy-names = "dp";
0086 };
0087
0088 Board Specific portion:
0089 dp-controller {
0090 display-timings {
0091 native-mode = <&lcd_timing>;
0092 lcd_timing: 1366x768 {
0093 clock-frequency = <70589280>;
0094 hactive = <1366>;
0095 vactive = <768>;
0096 hfront-porch = <40>;
0097 hback-porch = <40>;
0098 hsync-len = <32>;
0099 vback-porch = <10>;
0100 vfront-porch = <12>;
0101 vsync-len = <6>;
0102 };
0103 };
0104
0105 ports {
0106 port@0 {
0107 dp_out: endpoint {
0108 remote-endpoint = <&bridge_in>;
0109 };
0110 };
0111 };
0112 };
