The first patch in this series adds support for voltage ranges to the GPU
OPPs defined in the SoC dtsi for Rockchip RK356x, which is, for example,
useful for RK356x-based boards designed to use the same power supply for
the GPU and NPU portions of the SoC.
The second patch updates the values for the exact GPU OPP voltages and
the lower limits for the GPU OPP voltage ranges, so they match the most
conservative values (i.e. the highest per-OPP voltages) found in the
vendor kernel source. This is performed in a separate patch to allow
easier regression tracking, in the unlikely case that some issues are
discovered later, resulting from these voltage changes.
Changes in v3:
- Turned into a patch series by adding a second patch that updates
the exact GPU OPP voltages and the lower limits for the GPU OPP
voltage ranges so they match the most conservative values found
in the vendor kernel source [1]
Changes in v2:
- Dropped support for optional GPU OPP voltage ranges, which may
actually hide some misconfiguration issues in board dts files, [2]
but that will be covered by other debugging patches [3]
Link to v2: https://lore.kernel.org/linux-rockchip/bdb60f1f793166cd65f58ab7aea025347076019c.1719679068.git.dsimic@xxxxxxxxxxx/T/#u
Link to v1: https://lore.kernel.org/linux-rockchip/446399362bd2dbeeaecd8351f68811165429749a.1719637113.git.dsimic@xxxxxxxxxxx/T/#u
[1] https://lore.kernel.org/linux-rockchip/b8951ac4e29184fa35919c6ab85b8f87@xxxxxxxxxxx/
[2] https://lore.kernel.org/linux-rockchip/f10d5a3c425c2c4312512c20bd35073c@xxxxxxxxxxx/
[3] https://lore.kernel.org/linux-rockchip/36170f8485293b336106e92346478daa@xxxxxxxxxxx/
Dragan Simic (2):
arm64: dts: rockchip: Add GPU OPP voltage ranges to RK356x SoC dtsi
arm64: dts: rockchip: Update GPU OPP voltages in RK356x SoC dtsi
arch/arm64/boot/dts/rockchip/rk356x.dtsi | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
