From: Lucas Stach Date: Wed, 8 Mar 2017 11:13:13 +0000 (+0100) Subject: gpu: ipu-v3: add DT binding for the Prefetch Resolve Engine X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=dcddda561b91fe82a8201ba7f5b4237be4c79219;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git gpu: ipu-v3: add DT binding for the Prefetch Resolve Engine The Prefetch Resolve Engine is a prefetch and tile resolve engine which prefetches display data from DRAM to an internal SRAM region. It has a single clock for configuration register access and the functional units. A single shared interrupt is used for status and error signaling. The only external dependency is the SRAM region to use for the prefetch double buffer. Signed-off-by: Lucas Stach Signed-off-by: Philipp Zabel --- diff --git a/Documentation/devicetree/bindings/display/imx/fsl-imx-drm.txt b/Documentation/devicetree/bindings/display/imx/fsl-imx-drm.txt index 971c3eedb1c7..70ae5335d1e3 100644 --- a/Documentation/devicetree/bindings/display/imx/fsl-imx-drm.txt +++ b/Documentation/devicetree/bindings/display/imx/fsl-imx-drm.txt @@ -53,6 +53,32 @@ ipu: ipu@18000000 { }; }; +Freescale i.MX PRE (Prefetch Resolve Engine) +============================================ + +Required properties: +- compatible: should be "fsl,imx6qp-pre" +- reg: should be register base and length as documented in the + datasheet +- clocks : phandle to the PRE axi clock input, as described + in Documentation/devicetree/bindings/clock/clock-bindings.txt and + Documentation/devicetree/bindings/clock/imx6q-clock.txt. +- clock-names: should be "axi" +- interrupts: should contain the PRE interrupt +- fsl,iram: phandle pointing to the mmio-sram device node, that should be + used for the PRE SRAM double buffer. + +example: + +pre@21c8000 { + compatible = "fsl,imx6qp-pre"; + reg = <0x021c8000 0x1000>; + interrupts = ; + clocks = <&clks IMX6QDL_CLK_PRE0>; + clock-names = "axi"; + fsl,iram = <&ocram2>; +}; + Parallel display support ========================