diff options
Diffstat (limited to 'Documentation/devicetree/bindings/video/via,vt8500-fb.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/video/via,vt8500-fb.txt | 48 |
1 files changed, 11 insertions, 37 deletions
diff --git a/Documentation/devicetree/bindings/video/via,vt8500-fb.txt b/Documentation/devicetree/bindings/video/via,vt8500-fb.txt index c870b6478ec..2871e218a0f 100644 --- a/Documentation/devicetree/bindings/video/via,vt8500-fb.txt +++ b/Documentation/devicetree/bindings/video/via,vt8500-fb.txt @@ -5,58 +5,32 @@ Required properties: - compatible : "via,vt8500-fb" - reg : Should contain 1 register ranges(address and length) - interrupts : framebuffer controller interrupt -- display: a phandle pointing to the display node +- bits-per-pixel : bit depth of framebuffer (16 or 32) -Required nodes: -- display: a display node is required to initialize the lcd panel - This should be in the board dts. -- default-mode: a videomode within the display with timing parameters - as specified below. +Required subnodes: +- display-timings: see display-timing.txt for information Example: - fb@d800e400 { + fb@d8050800 { compatible = "via,vt8500-fb"; reg = <0xd800e400 0x400>; interrupts = <12>; - display = <&display>; - default-mode = <&mode0>; - }; - -VIA VT8500 Display ------------------------------------------------------ -Required properties (as per of_videomode_helper): - - - hactive, vactive: Display resolution - - hfront-porch, hback-porch, hsync-len: Horizontal Display timing parameters - in pixels - vfront-porch, vback-porch, vsync-len: Vertical display timing parameters in - lines - - clock: displayclock in Hz - - bpp: lcd panel bit-depth. - <16> for RGB565, <32> for RGB888 - -Optional properties (as per of_videomode_helper): - - width-mm, height-mm: Display dimensions in mm - - hsync-active-high (bool): Hsync pulse is active high - - vsync-active-high (bool): Vsync pulse is active high - - interlaced (bool): This is an interlaced mode - - doublescan (bool): This is a doublescan mode + bits-per-pixel = <16>; -Example: - display: display@0 { - modes { - mode0: mode@0 { + display-timings { + native-mode = <&timing0>; + timing0: 800x480 { + clock-frequency = <0>; /* unused but required */ hactive = <800>; vactive = <480>; - hback-porch = <88>; hfront-porch = <40>; + hback-porch = <88>; hsync-len = <0>; vback-porch = <32>; vfront-porch = <11>; vsync-len = <1>; - clock = <0>; /* unused but required */ - bpp = <16>; /* non-standard but required */ }; }; }; + |