mirror of
https://github.com/torvalds/linux.git
synced 2024-12-26 12:52:30 +00:00
46 lines
1.6 KiB
Plaintext
46 lines
1.6 KiB
Plaintext
|
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.txt.
|
||
|
|
- 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>;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|