Some clients like adreno gpu driver would like to ensure that its gdsc is collapsed at hardware during a gpu reset sequence. This is because it has a votable gdsc which could be ON due to a vote from another subsystem like tz, hyp etc or due to an internal hardware signal. To allow this, gpucc driver can expose an interface to the client driver using reset framework. Using this the client driver can trigger a polling within the gdsc driver. This series is rebased on top of linus's master branch. Related discussion: https://patchwork.freedesktop.org/patch/493144/ Akhil P Oommen (5): dt-bindings: clk: qcom: Support gpu cx gdsc reset clk: qcom: Allow custom reset ops clk: qcom: gpucc-sc7280: Add cx collapse reset support clk: qcom: gdsc: Add a reset op to poll gdsc collapse arm64: dts: qcom: sc7280: Add Reset support for gpu arch/arm64/boot/dts/qcom/sc7280.dtsi | 3 +++ drivers/clk/qcom/gdsc.c | 23 +++++++++++++++++++---- drivers/clk/qcom/gdsc.h | 7 +++++++ drivers/clk/qcom/gpucc-sc7280.c | 6 ++++++ drivers/clk/qcom/reset.c | 6 ++++++ drivers/clk/qcom/reset.h | 2 ++ include/dt-bindings/clock/qcom,gpucc-sc7280.h | 3 +++ 7 files changed, 46 insertions(+), 4 deletions(-) -- 2.7.4
