From 7121926d4ca5869b730da760c1fdf3dc1d723224 Mon Sep 17 00:00:00 2001 From: Yannick Fertre Date: Fri, 14 Apr 2017 12:13:33 +0200 Subject: [PATCH] dt-bindings: display: Add STM32 LTDC driver This patch adds documentation of device tree bindings for the STM32 LTDC (Lcd-Tft Display Controller). Acked-by: Rob Herring Signed-off-by: Yannick Fertre Signed-off-by: Eric Anholt Link: http://patchwork.freedesktop.org/patch/msgid/1492164819-10513-4-git-send-email-yannick.fertre@st.com --- .../bindings/display/st,stm32-ltdc.txt | 36 +++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/st,stm32-ltdc.txt diff --git a/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt b/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt new file mode 100644 index 000000000000..8e1476941c0f --- /dev/null +++ b/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt @@ -0,0 +1,36 @@ +* STMicroelectronics STM32 lcd-tft display controller + +- ltdc: lcd-tft display controller host + must be a sub-node of st-display-subsystem + Required properties: + - compatible: "st,stm32-ltdc" + - reg: Physical base address of the IP registers and length of memory mapped region. + - clocks: A list of phandle + clock-specifier pairs, one for each + entry in 'clock-names'. + - clock-names: A list of clock names. For ltdc it should contain: + - "lcd" for the clock feeding the output pixel clock & IP clock. + - resets: reset to be used by the device (defined by use of RCC macro). + Required nodes: + - Video port for RGB output. + +Example: + +/ { + ... + soc { + ... + ltdc: display-controller@40016800 { + compatible = "st,stm32-ltdc"; + reg = <0x40016800 0x200>; + interrupts = <88>, <89>; + resets = <&rcc STM32F4_APB2_RESET(LTDC)>; + clocks = <&rcc 1 CLK_LCD>; + clock-names = "lcd"; + + port { + ltdc_out_rgb: endpoint { + }; + }; + }; + }; +}; -- 2.20.1