On Fri, 1 Mar 2024 at 21:32, Laurent Pinchart
<laurent.pinchart@xxxxxxxxxxxxxxxx> wrote:
>
> From: Uwe Kleine-König <uwe@xxxxxxxxxxxxxxxxx>
>
> The cm4-io board comes with a PCF85063 on I2C0, connected to the GPIO44
> and GPIO45 pins. Add it to the device tree.
>
> Signed-off-by: Uwe Kleine-König <uwe@xxxxxxxxxxxxxxxxx>
> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> ---
> Changes since v4:
>
> - Use the right part number in the compatible string
> - Add the quartz-load-femtofarads property
>
> Changes since v3:
>
> - Separate addition of the RTC to a patch of its own
> ---
> .../boot/dts/broadcom/bcm2711-rpi-cm4-io.dts | 17 +++++++++++++++++
> 1 file changed, 17 insertions(+)
>
> diff --git a/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts b/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts
> index d7ba02f586d3..d5ebb535afd2 100644
> --- a/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts
> +++ b/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts
> @@ -101,6 +101,23 @@ &genet {
> status = "okay";
> };
>
> +&i2c0 {
> + status = "okay";
> +};
This is already the default from bcm2835-rpi.dtsi
> +
> +&i2c0_1 {
> + rtc@51 {
> + /* Attention: An alarm resets the machine */
> + compatible = "nxp,pcf85063a";
> + reg = <0x51>;
> + quartz-load-femtofarads = <7000>;
> + };
> +};
> +
> +&i2c0mux {
> + status = "okay";
Default status queried on patch 12/15.
With those clarified:
Acked-by: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
> +};
> +
> &led_act {
> gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
> };
> --
> Regards,
>
> Laurent Pinchart
>
