linux-stable/arch/arm/boot/dts/bcm2835-rpi.dtsi
Maxime Ripard 6a7548305a ARM: dts: bcm2835: Change firmware compatible from simple-bus to simple-mfd
The current binding for the RPi firmware uses the simple-bus compatible as
a fallback to benefit from its automatic probing of child nodes.

However, simple-bus also comes with some constraints, like having the ranges,
our case.

Let's switch to simple-mfd that provides the same probing logic without
those constraints.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20200924082642.18144-1-maxime@cerno.tech
Signed-off-by: Rob Herring <robh@kernel.org>
2020-09-28 07:55:12 -05:00

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Text

#include <dt-bindings/power/raspberrypi-power.h>
/ {
leds {
compatible = "gpio-leds";
act {
label = "ACT";
default-state = "keep";
linux,default-trigger = "heartbeat";
};
};
soc {
firmware: firmware {
compatible = "raspberrypi,bcm2835-firmware", "simple-mfd";
#address-cells = <1>;
#size-cells = <1>;
mboxes = <&mailbox>;
dma-ranges;
};
power: power {
compatible = "raspberrypi,bcm2835-power";
firmware = <&firmware>;
#power-domain-cells = <1>;
};
vchiq: mailbox@7e00b840 {
compatible = "brcm,bcm2835-vchiq";
reg = <0x7e00b840 0x3c>;
interrupts = <0 2>;
};
};
};
&gpio {
pinctrl-names = "default";
gpioout: gpioout {
brcm,pins = <6>;
brcm,function = <BCM2835_FSEL_GPIO_OUT>;
};
alt0: alt0 {
brcm,pins = <4 5 7 8 9 10 11>;
brcm,function = <BCM2835_FSEL_ALT0>;
};
};
&i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_gpio0>;
status = "okay";
clock-frequency = <100000>;
};
&i2c1 {
pinctrl-names = "default";
pinctrl-0 = <&i2c1_gpio2>;
status = "okay";
clock-frequency = <100000>;
};
&usb {
power-domains = <&power RPI_POWER_DOMAIN_USB>;
};
&vec {
power-domains = <&power RPI_POWER_DOMAIN_VEC>;
status = "okay";
};
&dsi0 {
power-domains = <&power RPI_POWER_DOMAIN_DSI0>;
};
&dsi1 {
power-domains = <&power RPI_POWER_DOMAIN_DSI1>;
};