[PATCH -next] arm: dts: k3-am654: add vin-supply regulators for DDR

[Nishanth Menon]

On 07:15-20251003, Bryan Brattlof wrote:
> As of f98d812e53534 ("power: regulator: Add vin-supply for GPIO and Fixed regulators")
> we must ensure the parent nodes of a regulator are present in DT if
> they are described in the vin-supply property
> 
> For the am65x reference board the DRAM chips are fed by the 3v3 rail
> which is fed by the main 12v rail. Add the bootph properties to these
> DT nodes to prevent them from being pruned during the SPL build so we
> can enable power to the DRAM chips
> 
> Signed-off-by: Bryan Brattlof <bb at ti.com>
> ---
>  arch/arm/dts/k3-am654-base-board-u-boot.dtsi | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/arch/arm/dts/k3-am654-base-board-u-boot.dtsi b/arch/arm/dts/k3-am654-base-board-u-boot.dtsi
> index 4fd188fa191b469d69b461b49b17635f914eb53e..baf5dd562f99310f3c8fe1d272cea2fd85164be0 100644
> --- a/arch/arm/dts/k3-am654-base-board-u-boot.dtsi
> +++ b/arch/arm/dts/k3-am654-base-board-u-boot.dtsi
> @@ -17,6 +17,14 @@
>  	bootph-all;
>  };
>  
> +&evm_12v0 {
> +	bootph-all;
> +};
> +
> +&vcc3v3_io {
> +	bootph-all;
> +};
> +
>  &vtt_supply {
>  	bootph-all;
>  };
> 
> ---
> base-commit: aff68c8514858ddd8d2e508d47bede566511521b
> change-id: 20251002-654-next-fix-985fc18d370b


Tom,

we have had a boot regression on AM654x-IDK for a while now. this patch fixes the same.

https://gist.github.com/nmenon/582820aa718a7d2f8939d6676f70d917

Tested-by: Nishanth Menon <nm at ti.com>

-- 
Regards,
Nishanth Menon
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