| STMicroelectronics STM32 Digital Camera Memory Interface (DCMI) |
| |
| Required properties: |
| - compatible: "st,stm32-dcmi" |
| - reg: physical base address and length of the registers set for the device |
| - interrupts: should contain IRQ line for the DCMI |
| - resets: reference to a reset controller, |
| see Documentation/devicetree/bindings/reset/st,stm32-rcc.txt |
| - clocks: list of clock specifiers, corresponding to entries in |
| the clock-names property |
| - clock-names: must contain "mclk", which is the DCMI peripherial clock |
| - pinctrl: the pincontrol settings to configure muxing properly |
| for pins that connect to DCMI device. |
| See Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml. |
| - dmas: phandle to DMA controller node, |
| see Documentation/devicetree/bindings/dma/stm32-dma.txt |
| - dma-names: must contain "tx", which is the transmit channel from DCMI to DMA |
| |
| DCMI supports a single port node with parallel bus. It should contain one |
| 'port' child node with child 'endpoint' node. Please refer to the bindings |
| defined in Documentation/devicetree/bindings/media/video-interfaces.txt. |
| |
| Example: |
| |
| dcmi: dcmi@50050000 { |
| compatible = "st,stm32-dcmi"; |
| reg = <0x50050000 0x400>; |
| interrupts = <78>; |
| resets = <&rcc STM32F4_AHB2_RESET(DCMI)>; |
| clocks = <&rcc 0 STM32F4_AHB2_CLOCK(DCMI)>; |
| clock-names = "mclk"; |
| pinctrl-names = "default"; |
| pinctrl-0 = <&dcmi_pins>; |
| dmas = <&dma2 1 1 0x414 0x3>; |
| dma-names = "tx"; |
| port { |
| dcmi_0: endpoint { |
| remote-endpoint = <...>; |
| bus-width = <8>; |
| hsync-active = <0>; |
| vsync-active = <0>; |
| pclk-sample = <1>; |
| }; |
| }; |
| }; |
