[PATCH v5 13/16] dts: sdm845-db845c: add u-boot fixups

[Sumit Garg]

On Thu, 28 Mar 2024 at 23:29, Caleb Connolly <caleb.connolly at linaro.org> wrote:
>
> The USB VBUS supply for the type-A port is enabled via a GPIO regulator.
> This is incorrectly modelled in Linux where only the PCIe dependency is
> expressed. The correct way to handle this will be through a
> usb-connector node, but for now we'll just mark the regulator as
> always-on so that it will be enabled automatically during boot.
>
> Signed-off-by: Caleb Connolly <caleb.connolly at linaro.org>
> ---
>  arch/arm/dts/sdm845-db845c-u-boot.dtsi | 9 +++++++++
>  1 file changed, 9 insertions(+)
>

Reviewed-by: Sumit Garg <sumit.garg at linaro.org>

-Sumit

> diff --git a/arch/arm/dts/sdm845-db845c-u-boot.dtsi b/arch/arm/dts/sdm845-db845c-u-boot.dtsi
> new file mode 100644
> index 000000000000..906f9faa5451
> --- /dev/null
> +++ b/arch/arm/dts/sdm845-db845c-u-boot.dtsi
> @@ -0,0 +1,9 @@
> +// SPDX-License-Identifier: GPL-2.0
> +
> +/* Needed for Linux to boot from USB, otherwise if PCIe driver is not in initramfs
> + * the VBUS supply will never get turned on.
> + * https://lore.kernel.org/linux-arm-msm/20240320122515.3243711-1-caleb.connolly@linaro.org/
> + */
> +&pcie0_3p3v_dual {
> +       regulator-always-on;
> +};
>
> --
> 2.44.0
>