[0/3] Update, encapsulate and expand the RK356x SoC dtsi files

Message

Dragan Simic Oct. 12, 2024, 5:04 p.m. UTC

This series tackles the Rockchip RK356x SoC dtsi files in a few different
ways.  First, it updates the lower and upper voltage limits and the exact
voltages for the Rockchip RK356x CPU OPPs, using the most conservative
per-OPP values for different SoC bins.  This is rather similar to the
already performed adjustment of the GPU OPP voltages. [1]

Next, this series prepares the RK356x SoC dtsi files for per-variant OPPs,
with the RK3566T being the first new RK356x SoC variant to be introduced.
This follows the approach used for the RK3588 SoC variants. [2]

Lastly, this series introduces new SoC dtsi for the RK3566T variant, which
is capable of operating at the CPU and GPU OPPs/frequencies lower than the
"full-fat" RK3566 variant's.  The RK3566T is found on some of the already
supported boards and rather importantly, this stops the CPU cores and the
GPU from being overclocked on these boards.

[1] https://lore.kernel.org/linux-rockchip/[e-mail]/T/#m786f0e0a45377d29aea826f05c95b5052a8bb3d9
[2] https://lore.kernel.org/all/[e-mail]/T/#u

Dragan Simic (3):
  arm64: dts: rockchip: Update CPU OPP voltages in RK356x SoC dtsi
  arm64: dts: rockchip: Prepare RK356x SoC dtsi files for per-variant
    OPPs
  arm64: dts: rockchip: Add new SoC dtsi for the RK3566T variant

 .../{rk3566.dtsi => rk3566-base.dtsi}         |   2 +-
 .../dts/rockchip/rk3566-radxa-zero-3.dtsi     |   2 +-
 .../boot/dts/rockchip/rk3566-rock-3c.dts      |   2 +-
 arch/arm64/boot/dts/rockchip/rk3566.dtsi      | 116 ++++++++++++++----
 arch/arm64/boot/dts/rockchip/rk3566t.dtsi     |  90 ++++++++++++++
 arch/arm64/boot/dts/rockchip/rk3568.dtsi      | 113 ++++++++++++++++-
 .../{rk356x.dtsi => rk356x-base.dtsi}         |  81 ------------
 7 files changed, 294 insertions(+), 112 deletions(-)
 copy arch/arm64/boot/dts/rockchip/{rk3566.dtsi => rk3566-base.dtsi} (95%)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3566t.dtsi
 rename arch/arm64/boot/dts/rockchip/{rk356x.dtsi => rk356x-base.dtsi} (96%)