linux-kernel - [PATCH v3 0/7] clk: qcom: use power-domain for sm8250's clock controllers

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Date:   Fri,  9 Jul 2021 20:31:55 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Taniya Das <tdas@...eaurora.org>,
        Jonathan Marek <jonathan@...ek.ca>,
        Michael Turquette <mturquette@...libre.com>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-clk@...r.kernel.org,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Mark Brown <broonie@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH v3 0/7] clk: qcom: use power-domain for sm8250's clock controllers

On SM8250 both the display and video clock controllers are powered up by
the MMCX power domain. Handle this by linking clock controllers to the
proper power domain, and using runtime power management to enable and
disable the MMCX power domain.

Dependencies:
- https://lore.kernel.org/linux-pm/20210603093438.138705-1-ulf.hansson@linaro.org/ (merged in 5.14)
- https://lore.kernel.org/linux-arm-msm/20210703005416.2668319-1-bjorn.andersson@linaro.org/
  (pending)

Changes since v2:
 - Move pm_runtime calls from generic genpd code to the gdsc code for
   now (as suggested by Ulf & Bjorn)

Changes since v1:
 - Rebase on top of Bjorn's patches, removing the need for setting
   performance state directly.
 - Move runtime PM calls from GDSC code to generic genpd code.
 - Always call pm_runtime_enable in the Qualcomm generic clock
   controller code.
 - Register GDSC power domains as subdomains of the domain powering the
   clock controller if there is one.

----------------------------------------------------------------
Dmitry Baryshkov (7):
      dt-bindings: clock: qcom,dispcc-sm8x50: add mmcx power domain
      dt-bindings: clock: qcom,videocc: add mmcx power domain
      clk: qcom: gdsc: enable optional power domain support
      clk: qcom: gdsc: call runtime PM functions for the provider device
      arm64: dts: qcom: sm8250: remove mmcx regulator
      clk: qcom: dispcc-sm8250: stop using mmcx regulator
      clk: qcom: videocc-sm8250: stop using mmcx regulator

 .../bindings/clock/qcom,dispcc-sm8x50.yaml         |  7 +++
 .../devicetree/bindings/clock/qcom,videocc.yaml    |  7 +++
 arch/arm64/boot/dts/qcom/sm8250.dtsi               | 11 +---
 drivers/clk/qcom/common.c                          | 37 ++++++++++--
 drivers/clk/qcom/dispcc-sm8250.c                   |  1 -
 drivers/clk/qcom/gdsc.c                            | 70 ++++++++++++++++++++--
 drivers/clk/qcom/gdsc.h                            |  2 +
 drivers/clk/qcom/videocc-sm8250.c                  |  4 --
 8 files changed, 115 insertions(+), 24 deletions(-)