| Message ID | 20201030113622.201188-1-enric.balletbo@collabora.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | soc: mediatek: pm-domains: Add new driver for SCPSYS power domains controller | expand |
On 30/10/2020 12:36, Enric Balletbo i Serra wrote: > Dear all, > > This is a new driver with the aim to deprecate the mtk-scpsys driver. > The problem with that driver is that, in order to support more Mediatek > SoCs you need to add some logic to handle properly the power-up > sequence of newer Mediatek SoCs, doesn't handle parent-child power > domains and need to hardcode all the clocks in the driver itself. The > result is that the driver is getting bigger and bigger every time a > new SoC needs to be supported. > > All this information can be getted from a properly defined binding, so > can be cleaner and smaller, hence, we implemented a new driver. For > now, only MT8173 and MT8183 is supported but should be fairly easy to > add support for new SoCs. > All patches are pushed: DT-bindings went to v5.10-next/pm-domains-stable as they are needed by both soc and dts64 branch. Regards, Matthias > Three important notes: > > 1. This patch depends now on [1] to build correctly. > > 2. Support for MT8183 is not ready to land yet because has some > dependencies, i.e mmsys support is still missing. > > 3. Support for MT8192. I picked the patches [2] from Weiyi Lu and > adapted to this new series. I posted only for reference due that this > new version has some changes that affects that patchset. > > Only patches from 1 to 9 are ready, the others are provided for reference and test. > > [1] https://lore.kernel.org/patchwork/patch/1328096/ > [2] https://patchwork.kernel.org/project/linux-mediatek/list/?series=368821 > > Best regards, > Enric > > Enric Balletbo i Serra (5): > dt-bindings: power: Add bindings for the Mediatek SCPSYS power domains > controller > soc: mediatek: Add MediaTek SCPSYS power domains > arm64: dts: mediatek: Add mt8173 power domain controller > dt-bindings: power: Add MT8183 power domains > arm64: dts: mediatek: Add smi_common node for MT8183 > > Matthias Brugger (8): > soc: mediatek: pm-domains: Add bus protection protocol > soc: mediatek: pm_domains: Make bus protection generic > soc: mediatek: pm-domains: Add SMI block as bus protection block > soc: mediatek: pm-domains: Add extra sram control > soc: mediatek: pm-domains: Add subsystem clocks > soc: mediatek: pm-domains: Allow bus protection to ignore clear ack > soc: mediatek: pm-domains: Add support for mt8183 > arm64: dts: mediatek: Add mt8183 power domains controller > > Weiyi Lu (3): > dt-bindings: power: Add MT8192 power domains > soc: mediatek: pm-domains: Add default power off flag > soc: mediatek: pm-domains: Add support for mt8192 > > .../power/mediatek,power-controller.yaml | 293 +++++++++ > arch/arm64/boot/dts/mediatek/mt8173.dtsi | 164 +++-- > arch/arm64/boot/dts/mediatek/mt8183.dtsi | 172 +++++ > drivers/soc/mediatek/Kconfig | 12 + > drivers/soc/mediatek/Makefile | 1 + > drivers/soc/mediatek/mt8173-pm-domains.h | 94 +++ > drivers/soc/mediatek/mt8183-pm-domains.h | 221 +++++++ > drivers/soc/mediatek/mt8192-pm-domains.h | 292 +++++++++ > drivers/soc/mediatek/mtk-infracfg.c | 5 - > drivers/soc/mediatek/mtk-pm-domains.c | 614 ++++++++++++++++++ > drivers/soc/mediatek/mtk-pm-domains.h | 102 +++ > include/dt-bindings/power/mt8183-power.h | 26 + > include/dt-bindings/power/mt8192-power.h | 32 + > include/linux/soc/mediatek/infracfg.h | 107 +++ > 14 files changed, 2081 insertions(+), 54 deletions(-) > create mode 100644 Documentation/devicetree/bindings/power/mediatek,power-controller.yaml > create mode 100644 drivers/soc/mediatek/mt8173-pm-domains.h > create mode 100644 drivers/soc/mediatek/mt8183-pm-domains.h > create mode 100644 drivers/soc/mediatek/mt8192-pm-domains.h > create mode 100644 drivers/soc/mediatek/mtk-pm-domains.c > create mode 100644 drivers/soc/mediatek/mtk-pm-domains.h > create mode 100644 include/dt-bindings/power/mt8183-power.h > create mode 100644 include/dt-bindings/power/mt8192-power.h >
Dear all, This is a new driver with the aim to deprecate the mtk-scpsys driver. The problem with that driver is that, in order to support more Mediatek SoCs you need to add some logic to handle properly the power-up sequence of newer Mediatek SoCs, doesn't handle parent-child power domains and need to hardcode all the clocks in the driver itself. The result is that the driver is getting bigger and bigger every time a new SoC needs to be supported. All this information can be getted from a properly defined binding, so can be cleaner and smaller, hence, we implemented a new driver. For now, only MT8173 and MT8183 is supported but should be fairly easy to add support for new SoCs. Three important notes: 1. This patch depends now on [1] to build correctly. 2. Support for MT8183 is not ready to land yet because has some dependencies, i.e mmsys support is still missing. 3. Support for MT8192. I picked the patches [2] from Weiyi Lu and adapted to this new series. I posted only for reference due that this new version has some changes that affects that patchset. Only patches from 1 to 9 are ready, the others are provided for reference and test. [1] https://lore.kernel.org/patchwork/patch/1328096/ [2] https://patchwork.kernel.org/project/linux-mediatek/list/?series=368821 Best regards, Enric Enric Balletbo i Serra (5): dt-bindings: power: Add bindings for the Mediatek SCPSYS power domains controller soc: mediatek: Add MediaTek SCPSYS power domains arm64: dts: mediatek: Add mt8173 power domain controller dt-bindings: power: Add MT8183 power domains arm64: dts: mediatek: Add smi_common node for MT8183 Matthias Brugger (8): soc: mediatek: pm-domains: Add bus protection protocol soc: mediatek: pm_domains: Make bus protection generic soc: mediatek: pm-domains: Add SMI block as bus protection block soc: mediatek: pm-domains: Add extra sram control soc: mediatek: pm-domains: Add subsystem clocks soc: mediatek: pm-domains: Allow bus protection to ignore clear ack soc: mediatek: pm-domains: Add support for mt8183 arm64: dts: mediatek: Add mt8183 power domains controller Weiyi Lu (3): dt-bindings: power: Add MT8192 power domains soc: mediatek: pm-domains: Add default power off flag soc: mediatek: pm-domains: Add support for mt8192 .../power/mediatek,power-controller.yaml | 293 +++++++++ arch/arm64/boot/dts/mediatek/mt8173.dtsi | 164 +++-- arch/arm64/boot/dts/mediatek/mt8183.dtsi | 172 +++++ drivers/soc/mediatek/Kconfig | 12 + drivers/soc/mediatek/Makefile | 1 + drivers/soc/mediatek/mt8173-pm-domains.h | 94 +++ drivers/soc/mediatek/mt8183-pm-domains.h | 221 +++++++ drivers/soc/mediatek/mt8192-pm-domains.h | 292 +++++++++ drivers/soc/mediatek/mtk-infracfg.c | 5 - drivers/soc/mediatek/mtk-pm-domains.c | 614 ++++++++++++++++++ drivers/soc/mediatek/mtk-pm-domains.h | 102 +++ include/dt-bindings/power/mt8183-power.h | 26 + include/dt-bindings/power/mt8192-power.h | 32 + include/linux/soc/mediatek/infracfg.h | 107 +++ 14 files changed, 2081 insertions(+), 54 deletions(-) create mode 100644 Documentation/devicetree/bindings/power/mediatek,power-controller.yaml create mode 100644 drivers/soc/mediatek/mt8173-pm-domains.h create mode 100644 drivers/soc/mediatek/mt8183-pm-domains.h create mode 100644 drivers/soc/mediatek/mt8192-pm-domains.h create mode 100644 drivers/soc/mediatek/mtk-pm-domains.c create mode 100644 drivers/soc/mediatek/mtk-pm-domains.h create mode 100644 include/dt-bindings/power/mt8183-power.h create mode 100644 include/dt-bindings/power/mt8192-power.h