提交 7121926d 编写于 作者: Y Yannick Fertre 提交者: Eric Anholt

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: NRob Herring <robh@kernel.org>
Signed-off-by: NYannick Fertre <yannick.fertre@st.com>
Signed-off-by: NEric Anholt <eric@anholt.net>
Link: http://patchwork.freedesktop.org/patch/msgid/1492164819-10513-4-git-send-email-yannick.fertre@st.com
上级 4636ce93
* 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 {
};
};
};
};
};
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