Exynos Display Controller
=========================
Required properties:
SOC specific:
	compatible: should be "samsung,exynos-fimd"
	reg: Base address of FIMD IP.

Board(panel specific):
	samsung,vl-col: X resolution of the panel
	samsung,vl-row: Y resolution of the panel
	samsung,vl-freq: Refresh rate
	samsung,vl-bpix: Bits per pixel
	samsung,vl-hspw: Hsync value
	samsung,vl-hfpd: Right margin
	samsung,vl-hbpd: Left margin
	samsung,vl-vspw: Vsync value
	samsung,vl-vfpd: Lower margin
	samsung,vl-vbpd: Upper margin

Optional properties:
Board(panel specific):
	samsung,vl-width: width of display area in mm
	samsung,vl-height: Height of display area in mm

	samsung,vl-clkp: Clock polarity
		CONFIG_SYS_LOW if defined, else CONFIG_SYS_HIGH
	samsung,vl-oep: Output Enable polarity
		CONFIG_SYS_LOW if defined, else CONFIG_SYS_HIGH
	samsung,vl-hsp: Horizontal Sync polarity
		CONFIG_SYS_LOW if defined, else CONFIG_SYS_HIGH
	samsung,vl-vsp: Vertical Sync polarity
		CONFIG_SYS_LOW if defined, else CONFIG_SYS_HIGH
	samsung,vl-dp: Data polarity
		CONFIG_SYS_LOW if defined, else CONFIG_SYS_HIGH

	samsung,vl-cmd-allow-len: Wait end of frame
	samsung,winid: Window number on which data is to be displayed
	samsung,init-delay: Delay before LCD initialization starts
	samsung,power-on-delay: Delay after LCD is powered on
	samsung,reset-delay: Delay after LCD is reset
	samsung,interface-mode: 1(FIMD_RGB_INTERFACE), 2(FIMD_CPU_INTERFACE)
	samsung,mipi-enabled: 1 if you want to use MIPI, else 0
	samsung,dp-enabled: 1is you want to use DP, else 0
	samsung,cs-setup: cs_setup value in FIMD_CPU_INTERFACE mode.
	samsung,wr-setup: wr_setup value in FIMD_CPU_INTERFACE mode.
	samsung,wr-act: wr_act value in FIMD_CPU_INTERFACE mode.
	samsung,wr-hold: wr_hold value in FIMD_CPU_INTERFACE mode.
	samsung,logo-on: 1 if you want to use custom logo.
			 0 if you want LCD console.
	samsung,logo-width: pixel width of logo image. Valid if logo_on = 1
	samsung,logo-height: pixel height of logo image. Valid if logo_on = 1
	samsung,logo-addr: Address of logo image. Valid if logo_on = 1
	samsung,rgb-mode: 0(MODE_RGB_P), 1(MODE_BGR_P),
			  2(MODE_RGB_S), 3(MODE_BGR_S)
	samsung,pclk-name: parent clock identifier: 1(MPLL), 2(EPLL), 3(VPLL)
	samsung,sclk-div: parent_clock/source_clock ratio
	samsung,dual-lcd-enabled: 1 if you support two LCD, else 0
	samsung,disable-sysmmu: Define this if you want to disable FIMD sysmmu.
				(needed for Exynos5420 and newer versions)
				Add the required FIMD sysmmu nodes to be
				disabled with compatible string
				"samsung,sysmmu-v3.3", with a "reg" property
				holding the register address of FIMD sysmmu.
	samsung,pwm-out-gpio: PWM output GPIO.
	samsung,bl-en-gpio: backlight enable GPIO.

Example:
SOC specific part:
	fimd@14400000 {
		compatible = "samsung,exynos-fimd";
		reg = <0x14400000 0x10000>;
		#address-cells = <1>;
		#size-cells = <1>;
	};

Board specific part:
	fimd@14400000 {
		samsung,vl-freq = <60>;
		samsung,vl-col = <2560>;
		samsung,vl-row = <1600>;
		samsung,vl-width = <2560>;
		samsung,vl-height = <1600>;

		samsung,vl-clkp;
		samsung,vl-dp;
		samsung,vl-bpix = <4>;

		samsung,vl-hspw = <32>;
		samsung,vl-hbpd = <80>;
		samsung,vl-hfpd = <48>;
		samsung,vl-vspw = <6>;
		samsung,vl-vbpd = <37>;
		samsung,vl-vfpd = <3>;
		samsung,vl-cmd-allow-len = <0xf>;

		samsung,winid = <3>;
		samsung,interface-mode = <1>;
		samsung,dp-enabled = <1>;
		samsung,dual-lcd-enabled = <0>;
	};