[PATCH] arm64: dts: renesas: r8a779g3: Set VDDQ18_25_AVB voltage on Retronix R-Car V4H Sparrow Hawk EVTB1

Quentin Schulz quentin.schulz at cherry.de
Mon Aug 11 16:20:19 CEST 2025


Hi Marek,

On 8/6/25 9:24 PM, Marek Vasut wrote:
> The Retronix R-Car V4H Sparrow Hawk EVTB1 uses 1V8 IO voltage supply
> for VDDQ18_25_AVB power rail. Update the AVB0 pinmux to reflect the
> change in IO voltage. Since the VDDQ18_25_AVB power rail is shared,
> all four AVB0, AVB1, AVB2, TSN0 PFC/GPIO POC[7..4] registers have to
> be configured the same way.
> 
> Correct the voltage for EVTA1 boards accordingly by patching the U-Boot
> control DT in SPL.
> 
> Signed-off-by: Marek Vasut <marek.vasut+renesas at mailbox.org>
> ---
> Cc: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
> Cc: Tom Rini <trini at konsulko.com>
> ---
>   board/renesas/sparrowhawk/sparrowhawk.c              | 12 ++++++++++++
>   .../src/arm64/renesas/r8a779g3-sparrow-hawk.dts      |  4 ++++

NACK. We only allow cherry-picks to dts/upstream. Please use 
tools/update-subtree.sh to cherry-pick from devicetree-rebasing git repo.

Do the change in a -u-boot.dtsi companion DTS file if you cannot wait 
for the Linux kernel to merge the change.

Cheers,
Quentin


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