This series refactors the bus protection regmaps retrieval to avoid
searching in all power domain devicetree subnodes for vendor properties
to get syscons for different busses, and adds a new property which is
located in the power controller root node containing handles to the same.
Retrocompatibility is retained and was tested on multiple SoCs in the
Collabora lab - specifically, on Genio 350/510/700/1200, and manually
on MT6795 Helio (Xperia M5 Smartphone), MT8186, MT8192 and MT8195
Chromebooks.
This was tested *three times*:
- Before the per-SoC conversion in drivers/pmdomain/mediatek
- With per-SoC conversion code but with *legacy* devicetree
- With per-SoC conversion code and with *new* devicetree conversion
All of those tests were successful on all of the aforementioned SoCs.
This also adds support for:
- Modem power domain for both old and new MediaTek SoCs, useful for
bringing up the GSM/3G/4G/5G modem for both laptop and smartphone use
- RTFF MCU HW, as found in MT8196 Chromebooks and MT6991 Dimensity 9400
- Hardware Voter (MT8196/MT6991), allowing ATF, remote processors and
the AP (Linux) to manage the same power domains through a voter MCU,
avoiding power racing
- Directly controlled power domains for MT8196
- Voted power domains for MT8196
- Multimedia (voted) power domains for MT8196.
Note that all of the power domains for MT8196 should also work on MT6991
but since I have no Dimensity 9400 boards, even though I'm 99.5% sure that
it will simply work as those are the same, I avoided to add compatibles
for 6991 as it's impossible for me to test.
AngeloGioacchino Del Regno (13):
dt-bindings: power: mediatek: Document mediatek,bus-protection
pmdomain: mediatek: Refactor bus protection regmaps retrieval
pmdomain: mediatek: Handle SoCs with inverted SRAM power-down bits
pmdomain: mediatek: Move ctl sequences out of power_on/off functions
pmdomain: mediatek: Add support for modem power sequences
pmdomain: mediatek: Add support for RTFF Hardware in MT8196/MT6991
pmdomain: mediatek: Add support for Hardware Voter power domains
pmdomain: mediatek: Add support for secure HWCCF infra power on
pmdomain: mediatek: Convert all SoCs to new style regmap retrieval
arm64: dts: mediatek: Convert all SoCs to use mediatek,bus-protection
dt-bindings: power: Add support for MT8196 power controllers
pmdomain: mediatek: Add support for MT8196 SCPSYS power domains
pmdomain: mediatek: Add support for MT8196 HFRPSYS power domains
.../power/mediatek,power-controller.yaml | 44 ++
arch/arm64/boot/dts/mediatek/mt6795.dtsi | 4 +-
arch/arm64/boot/dts/mediatek/mt6893.dtsi | 11 +-
arch/arm64/boot/dts/mediatek/mt8167.dtsi | 5 +-
arch/arm64/boot/dts/mediatek/mt8173.dtsi | 3 +-
arch/arm64/boot/dts/mediatek/mt8183.dtsi | 15 +-
arch/arm64/boot/dts/mediatek/mt8186.dtsi | 11 +-
arch/arm64/boot/dts/mediatek/mt8188.dtsi | 22 +-
arch/arm64/boot/dts/mediatek/mt8192.dtsi | 12 +-
arch/arm64/boot/dts/mediatek/mt8195.dtsi | 21 +-
arch/arm64/boot/dts/mediatek/mt8365.dtsi | 14 +-
drivers/pmdomain/mediatek/mt6795-pm-domains.h | 5 +
drivers/pmdomain/mediatek/mt8167-pm-domains.h | 5 +
drivers/pmdomain/mediatek/mt8173-pm-domains.h | 5 +
drivers/pmdomain/mediatek/mt8183-pm-domains.h | 5 +
drivers/pmdomain/mediatek/mt8186-pm-domains.h | 5 +
drivers/pmdomain/mediatek/mt8188-pm-domains.h | 6 +
drivers/pmdomain/mediatek/mt8192-pm-domains.h | 5 +
drivers/pmdomain/mediatek/mt8195-pm-domains.h | 5 +
drivers/pmdomain/mediatek/mt8196-pm-domains.h | 625 ++++++++++++++++
drivers/pmdomain/mediatek/mt8365-pm-domains.h | 14 +-
drivers/pmdomain/mediatek/mtk-pm-domains.c | 694 +++++++++++++++---
drivers/pmdomain/mediatek/mtk-pm-domains.h | 123 +++-
.../dt-bindings/power/mediatek,mt8196-power.h | 58 ++
24 files changed, 1500 insertions(+), 217 deletions(-)
create mode 100644 drivers/pmdomain/mediatek/mt8196-pm-domains.h
create mode 100644 include/dt-bindings/power/mediatek,mt8196-power.h
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2.49.0