Hi Maxime,
Am 24.04.20 um 17:35 schrieb Maxime Ripard:
> Now that all the drivers have been adjusted for it, let's bring in the
> necessary device tree changes.
>
> Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
> ---
> arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 46 +++++++++++-
> arch/arm/boot/dts/bcm2711.dtsi | 115 ++++++++++++++++++++++++++-
> 2 files changed, 160 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
> index 3205d2dfa898..0efbc4412dc9 100644
> --- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
> +++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
> @@ -220,3 +220,49 @@
> &vchiq {
> interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
> };
> +
> +&vc4 {
> + status = "okay";
> +};
> +
> +&pixelvalve0 {
> + status = "okay";
> +};
> +
> +&pixelvalve1 {
> + status = "okay";
> +};
> +
> +&pixelvalve2 {
> + status = "okay";
> +};
> +
> +&pixelvalve3 {
> + status = "okay";
> +};
> +
> +&pixelvalve4 {
> + status = "okay";
> +};
> +
> +&hdmi0 {
> + clocks = <&firmware_clocks 13>, <&dvp 0>;
> + status = "okay";
> +};
> +
> +&ddc0 {
> + status = "okay";
> +};
> +
> +&hdmi1 {
> + clocks = <&firmware_clocks 13>, <&dvp 1>;
> + status = "okay";
> +};
> +
> +&ddc1 {
> + status = "okay";
> +};
> +
> +&hvs {
> + clocks = <&firmware_clocks 4>;
> +};
> diff --git a/arch/arm/boot/dts/bcm2711.dtsi b/arch/arm/boot/dts/bcm2711.dtsi
> index 00bcaed1be32..a6549fa6e62b 100644
> --- a/arch/arm/boot/dts/bcm2711.dtsi
> +++ b/arch/arm/boot/dts/bcm2711.dtsi
> @@ -12,6 +12,11 @@
>
> interrupt-parent = <&gicv2>;
>
...
> +
> + ddc0: i2c@7ef04500 {
> + compatible = "brcm,bcm2711-hdmi-i2c";
> + reg = <0x7ef04500 0x100>, <0x7ef00b00 0x300>;
> + reg-names = "bsc", "auto-i2c";
> + clock-frequency = <390000>;
according to a patch [1] from Dave Stevenson the i2c clock frequencies
are too high.
[1] -
https://github.com/raspberrypi/linux/pull/3515/commits/c09f108de27e8bd1995e7713c6128fa79e69579a
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