From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Shiyan Date: Thu, 20 Mar 2014 16:26:58 +0000 Subject: [PATCH 3/3] video: clps711x: Add bindings documentation for CLPS711X framebuffer Message-Id: <1395332818-23193-1-git-send-email-shc_work@mail.ru> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-fbdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: Jean-Christophe Plagniol-Villard , Tomi Valkeinen , Russell King , Olof Johansson , Arnd Bergmann , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Grant Likely , Alexander Shiyan Add OF document for Cirrus Logic CLPS711X framebuffer driver. Signed-off-by: Alexander Shiyan --- .../bindings/video/cirrus,clps711x-fb.txt | 48 ++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/cirrus,clps711x-fb.txt diff --git a/Documentation/devicetree/bindings/video/cirrus,clps711x-fb.txt b/Documentation/devicetree/bindings/video/cirrus,clps711x-fb.txt new file mode 100644 index 0000000..9d59ad3 --- /dev/null +++ b/Documentation/devicetree/bindings/video/cirrus,clps711x-fb.txt @@ -0,0 +1,48 @@ +* Currus Logic CLPS711X Framebuffer + +Required properties: +- compatible: Shall contain "cirrus,clps711x-fb". +- reg: Physical base address and length of the controller's registers + + location and size of the framebuffer memory. +- clocks: phandle + clock specifier pair of the FB reference clock. + +Required nodes: +- display: Phandle to a display node as described in display-timing.txt. + Additionally, the display node has to define properties: + - bits-per-pixel: Bits per pixel. + - ac-prescale: LCD AC bias frequency. This frequency is the required + AC bias frequency for a given manufacturer's LCD plate. + - cmap-invert: Invert the color levels (Optional). + +Optional properties: +- lcd-supply: Regulator for LCD supply voltage. + +Example: + fb: fb@800002c0 { + compatible = "cirrus,ep7312-fb", "cirrus,clps711x-fb"; + reg = <0x800002c0 0xd44>, <0x60000000 0xc000>; + clocks = <&clks 2>; + lcd-supply = <®5v0>; + display = <&display>; + }; + + display: display { + model = "320x240x4"; + native-mode = <&timing0>; + bits-per-pixel = <4>; + ac-prescale = <17>; + + display-timings { + timing0: 320x240 { + hactive = <320>; + hback-porch = <0>; + hfront-porch = <0>; + hsync-len = <0>; + vactive = <240>; + vback-porch = <0>; + vfront-porch = <0>; + vsync-len = <0>; + clock-frequency = <6500000>; + }; + }; + }; -- 1.8.3.2