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64c4ad71ba
Add an overlay to allow composite video to be output on GPIOs 4-11 on Raspberry Pi 5, 500, 500+ or CM5 only, with an optional 108 MHz clock on GPIO 0 and duplicate MSB on GPIO 27. Requires composite video to be enabled and DPI to be disabled. Signed-off-by: Nick Hollinghurst <nick.hollinghurst@raspberrypi.com>
49 lines
919 B
Plaintext
49 lines
919 B
Plaintext
/*
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* vec-gpio-pi5-overlay.dts
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*/
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/dts-v1/;
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/plugin/;
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/{
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compatible = "brcm,bcm2712";
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fragment@0 {
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target = <&rp1_vec>;
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rp1vec_overlay: __overlay__ {
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pinctrl-names = "default";
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pinctrl-0 = <&rp1vec_ch0pins>, <&rp1vec_ch0pins>;
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};
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};
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fragment@1 {
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target = <&gpio>;
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__overlay__ {
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rp1vec_ch0pins: rp1vec_ch0pins {
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function = "dpi";
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pins = "gpio4", "gpio5", "gpio6", "gpio7",
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"gpio8", "gpio9", "gpio10", "gpio11";
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bias-disable;
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drive-strength = <12>;
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};
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rp1vec_pin27: rp1vec_pin27 {
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function = "dpi";
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pins = "gpio27";
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bias-disable;
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drive-strength = <12>;
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};
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rp1vec_clkpin: rp1vec_clkpin {
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function = "dpi";
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pins = "gpio0";
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bias-disable;
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drive-strength = <12>;
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};
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};
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};
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__overrides__ {
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gpio27 = <&rp1vec_overlay>, "pinctrl-0:4=", <&rp1vec_pin27>;
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clk = <&rp1vec_overlay>, "pinctrl-0:8=", <&rp1vec_clkpin>;
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};
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};
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