mbox series

[v3,0/4] drm/msm/dpu: always use mdp device to scale bandwidth

Message ID 20210803101657.1072358-1-dmitry.baryshkov@linaro.org
Headers show
Series drm/msm/dpu: always use mdp device to scale bandwidth | expand

Message

Dmitry Baryshkov Aug. 3, 2021, 10:16 a.m. UTC 
In 5.13 the DPU driver was changed to vote on the bus bandwidth for all
the soc families, however suggested [1] dts changes were for some reason
not merged at that time. Let's merge them now.

If the bootloader does not setup the bus vote, clock might not be
enabled before the driver votes on the MDP bus bandwidth. Originally bus
votes were static and happened in MDSS hadling code, while now they are
dynamic and are moved to the MDP handling code, thus bus clocks also
should belong to the MDP device.

[1] https://lore.kernel.org/linux-arm-msm/04b4612dfd3f651ead068725409211a0@codeaurora.org/

Changes since v2:
 - Dropped merged patches
 - Rephrased commit message for sm8250.

Changes since v1:
 - Add dts changes as requested by Kalyan Thota

----------------------------------------------------------------
Dmitry Baryshkov (2):
      arm64: dts: sdm845: move bus clock to mdp node for sdm845 target
      arm64: dts: sm8250: remove bus clock from the mdss node for sm8250 target

 arch/arm64/boot/dts/qcom/sdm845.dtsi | 8 ++++----
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 3 +--
 2 files changed, 5 insertions(+), 6 deletions(-)