pmdomain: mediatek: Add support for MFlexGraphics

Browse source

Various MediaTek SoCs use GPU integration silicon named "MFlexGraphics"
by MediaTek. On the MT8196 and MT6991 SoCs, interacting with this
integration silicon is required to power on the GPU.

This glue silicon is in the form of an embedded microcontroller running
special-purpose firmware, which autonomously adjusts clocks and
regulators.

Implement a driver, modelled as a pmdomain driver with a
set_performance_state operation, to support these SoCs.

The driver also exposes the actual achieved clock rate, as read back
from the MCU, as common clock framework clocks, by acting as a clock
provider as well.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

...

This commit is contained in:

Nicolas Frattaroli 2025-10-17 17:31:12 +02:00 • committed by Ulf Hansson

parent 19e668e81e

commit f08e7a4e8d

3 changed files with 1061 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

16

drivers/pmdomain/mediatek/Kconfig

View file

1

drivers/pmdomain/mediatek/Makefile

View file

1044

drivers/pmdomain/mediatek/mtk-mfg-pmdomain.c

View file