arm64: dts: rockchip: add GPU powerdomain, opps, and cooling to rk3328

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Add GPU powerdomain, opp-table, and cooling map nodes for the Mali
GPU on the RK3328 SoC. Opp-table frequencies are sourced from the
Rockchip Linux v4.4 vendor kernel while voltages have been derived
from practical use and support work: keeping voltage above 1075mV
and disabling the 500MHz opp-point avoids instability and crashes.

Signed-off-by: Alex Bee <knaerzche@gmail.com>
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Tested-by: Diederik de Haas <didi.debian@cknow.org>  # Rock64
Link: https://lore.kernel.org/r/20250906120810.1833016-1-christianshewitt@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

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Alex Bee 2025-09-06 12:08:09 +00:00 • committed by Heiko Stuebner

parent 843367c7ed

commit 718efbc6a7

1 changed files with 39 additions and 1 deletions

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arch/arm64/boot/dts/rockchip/rk3328.dtsi

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