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/1628767642-4008-1-git-send-email-rnayak@xxxxxxxxxxxxxx/ (pending inclusion into 5.15) Changes since v6: - Dropped dependency on Bjorn's patches - Restored required-opps properties - Held pm device state while gdsc is powered on, removing dependency on genpd's power_on() powering the domain into required state. Changes since v5: - Dropped devm_pm_runtime_enable callback to remove extra dependency Changes since v4: - Dropped pm_runtime handling from drivers/clk/qcom/common.c Moved the code into dispcc-sm8250.c and videocc-sm8250.c Changes since v3: - Wrap gdsc_enable/gdsc_disable into pm_runtime_get/put calls rather than calling pm_runtime_get in gdsc_enabled and _put in gdsc_disable - Squash gdsc patches together to remove possible dependencies between two patches. 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 (8): dt-bindings: clock: qcom,dispcc-sm8x50: add mmcx power domain dt-bindings: clock: qcom,videocc: add mmcx power domain clk: qcom: dispcc-sm8250: use runtime PM for the clock controller clk: qcom: videocc-sm8250: use runtime PM for the clock controller clk: qcom: gdsc: enable optional power domain support 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 | 13 ++++++ .../devicetree/bindings/clock/qcom,videocc.yaml | 13 ++++++ arch/arm64/boot/dts/qcom/sm8250.dtsi | 13 ++---- drivers/clk/qcom/dispcc-sm8250.c | 28 ++++++++++-- drivers/clk/qcom/gdsc.c | 51 ++++++++++++++++++++-- drivers/clk/qcom/gdsc.h | 2 + drivers/clk/qcom/videocc-sm8250.c | 31 ++++++++++--- 7 files changed, 130 insertions(+), 21 deletions(-)
