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authorAndrew Turner <andrew@FreeBSD.org>2016-01-28 20:21:15 +0000
committerAndrew Turner <andrew@FreeBSD.org>2016-01-28 20:21:15 +0000
commit235ad806ee815395bce54dc1b0ce1c06cd29b44a (patch)
tree41cbd9055ad0d6dfa04377df1bb51f3c3f3948e2 /Bindings/video/fsl,imx-fb.txt
parentda75c2cc5808a45edc76752ba495dcc5dcd4346c (diff)
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-Freescale imx21 Framebuffer
-
-This framebuffer driver supports devices imx1, imx21, imx25, and imx27.
-
-Required properties:
-- compatible : "fsl,<chip>-fb", chip should be imx1 or imx21
-- reg : Should contain 1 register ranges(address and length)
-- interrupts : One interrupt of the fb dev
-
-Required nodes:
-- display: Phandle to a display node as described in
- Documentation/devicetree/bindings/video/display-timing.txt
- Additional, the display node has to define properties:
- - bits-per-pixel: Bits per pixel
- - fsl,pcr: LCDC PCR value
-
-Optional properties:
-- lcd-supply: Regulator for LCD supply voltage.
-- fsl,dmacr: DMA Control Register value. This is optional. By default, the
- register is not modified as recommended by the datasheet.
-- fsl,lpccr: Contrast Control Register value. This property provides the
- default value for the contrast control register.
- If that property is omitted, the register is zeroed.
-- fsl,lscr1: LCDC Sharp Configuration Register value.
-
-Example:
-
- imxfb: fb@10021000 {
- compatible = "fsl,imx21-fb";
- interrupts = <61>;
- reg = <0x10021000 0x1000>;
- display = <&display0>;
- };
-
- ...
-
- display0: display0 {
- model = "Primeview-PD050VL1";
- native-mode = <&timing_disp0>;
- bits-per-pixel = <16>;
- fsl,pcr = <0xf0c88080>; /* non-standard but required */
- display-timings {
- timing_disp0: 640x480 {
- hactive = <640>;
- vactive = <480>;
- hback-porch = <112>;
- hfront-porch = <36>;
- hsync-len = <32>;
- vback-porch = <33>;
- vfront-porch = <33>;
- vsync-len = <2>;
- clock-frequency = <25000000>;
- };
- };
- };