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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/Documentation/devicetree/bindings/display/imx/fsl,imx-fb.txt
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/display/imx/fsl,imx-fb.txt')
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diff --git a/kernel/Documentation/devicetree/bindings/display/imx/fsl,imx-fb.txt b/kernel/Documentation/devicetree/bindings/display/imx/fsl,imx-fb.txt
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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/display/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>;
+ };
+ };
+ };