arm64: dts: amlogic: meson-g12: add the Mali OPP table and use DVFS

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Add the OPP table for the Mali Bifrost GPU and drop the hardcoded
initial clock configuration. This enables GPU DVFS and thus saves power
when the GPU is not in use while still being able switch to a higher
clock on demand.

Set the GP0_PLL clock to 744MHz (which is the only frequency which
cannot be derived from the FCLK dividers) as the clock driver avoids
setting the parent clock rates so the HIFI PLL clock isn't changed (as
that's reserved for audio).

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20200719173213.639540-4-martin.blumenstingl@googlemail.com

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Martin Blumenstingl 2020-07-19 19:32:13 +02:00 • committed by Kevin Hilman

parent 8f16cfabbc

commit 916a0edc43

1 changed files with 34 additions and 15 deletions

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arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi

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