arm64: dts: imx8mm: Reduce GPU to nominal speed
authorAdam Ford <aford173@gmail.com>
Tue, 28 Nov 2023 20:02:16 +0000 (14:02 -0600)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 25 Jan 2024 23:35:25 +0000 (15:35 -0800)
commit95fff86aa8d2932c836b2076da3b15b9af6bd068
tree9cb531b1a2772ec940b6685e0c697477f035fdb3
parent9cd79bc11ffa7538784ea79d2278b739b6885f1f
arm64: dts: imx8mm: Reduce GPU to nominal speed

[ Upstream commit 1f794d3eed5345413c2b0cf1bcccc92d77681220 ]

When the GPU nodes were added, the GPU_PLL_OUT was configured
for 1000MHz, but this requires the SoC to run in overdrive mode
which requires an elevated voltage operating point.

Since this may run some boards out of spec, the default clock
should be set to 800MHz for nominal operating mode. Boards
that run at the higher voltage can update their clocks
accordingly.

Fixes: 4523be8e46be ("arm64: dts: imx8mm: Add GPU nodes for 2D and 3D core")
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/arm64/boot/dts/freescale/imx8mm.dtsi