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power: domain: renesas-r8a78000: Add SDK SCP 4.36 map

2026-07-29T03:15:56Z

The SCMI IDs did not change between SDK SCP 4.32 and SDK SCP 4.36. Add SDK SCP 4.36 as supported version and reuse SDK SCP 4.32 remap table. Signed-off-by: Marek Vasut Signed-off-by: Peng Fan

power: domain: mediatek: add MT8188 power domain driver

2026-07-22T18:54:55Z

Add the power domain driver for the MediaTek MT8188 SoC. It describes the SoC's power domains (MFG, display, camera, codec, ADSP, PCIe, ...) as a table of mtk_scp_domain_data entries and reuses the shared scpsys core through the power-controller probe, including the per-domain power status offsets and the ordered infracfg bus-protection steps. The domain tables and ordered bus-protection sequences mirror the Linux mt8188-pm-domains.h data. Signed-off-by: Chris-QJ Chen Signed-off-by: Julien Stephan Link: https://patch.msgid.link/20260709-mt8188-add-power-domain-v2-13-589ace7d30e2@baylibre.com Signed-off-by: David Lechner

power: domain: mediatek: add support for the power-controller model

2026-07-22T18:54:55Z

The current driver handles a flat scpsys node with a single, fixed set of power status registers and one infracfg bus-protection mask. Newer MediaTek SoCs describe their domains as child nodes of a power controller and need a richer model: - per-domain power status register offsets (pwr_sta_offs / pwr_sta2nd_offs), falling back to the legacy SPM_PWR_STATUS registers when not set; - an ordered list of bus-protection steps (scpsys_bus_prot_data / BUS_PROT_WR), each with its own set/clear/status register, applied on power-off and released in reverse on power-on; - per-domain clocks and an optional parent power domain. Add mtk_power_controller_probe(), which walks the controller's subnodes, resolves each domain's id, clocks and infracfg, and builds the domain tree. The existing flat probe (mtk_scpsys_probe) is left unchanged. No functional change for the existing MT7623/MT7629 drivers. Signed-off-by: Julien Stephan Link: https://patch.msgid.link/20260709-mt8188-add-power-domain-v2-12-589ace7d30e2@baylibre.com Signed-off-by: David Lechner

power: domain: mediatek: rename struct mtk_scp_domain to mtk_scpsys

2026-07-22T18:54:55Z

Prepare for support of future MediaTek SoCs by renaming struct mtk_scp_domain to struct mtk_scpsys. Upcoming SoCs require additional per-domain runtime data obtained from Device Tree. To keep the domain_data description in soc_data static const, a new wrapper structure will be introduced to combine the immutable domain_data description with the runtime data. The natural name for that wrapper is struct mtk_scp_domain, so free that name by renaming the existing runtime state structure to struct mtk_scpsys. Update the MT7623 and MT7629 drivers accordingly. No functional change intended. Signed-off-by: Julien Stephan Link: https://patch.msgid.link/20260709-mt8188-add-power-domain-v2-11-589ace7d30e2@baylibre.com Signed-off-by: David Lechner

power: domain: mediatek: rename mtk_power_domain_probe to mtk_scpsys_probe

2026-07-22T18:54:55Z

Rename the flat, single-node probe to mtk_scpsys_probe so that the name mtk_power_domain_probe can be reused for an upcoming nested (power-controller) probe. Update the MT7623 and MT7629 drivers accordingly. No functional change intended. Signed-off-by: Julien Stephan Link: https://patch.msgid.link/20260709-mt8188-add-power-domain-v2-10-589ace7d30e2@baylibre.com Signed-off-by: David Lechner

power: domain: mediatek: wrap domain tables in struct scp_soc_data

2026-07-22T18:54:55Z

The per-SoC match data currently points directly at the array of mtk_scp_domain_data. Wrap it in a new struct mtk_scp_soc_data that carries the table pointer together with its size, and add a MTK_SCP_SOC_DATA() helper that fills both from a single table definition via ARRAY_SIZE(). The num_domains field is not used yet; it is added here so that upcoming SoC support can validate the domain index coming from the device tree against the size of the table. No functional change intended. Signed-off-by: Julien Stephan Link: https://patch.msgid.link/20260709-mt8188-add-power-domain-v2-9-589ace7d30e2@baylibre.com Signed-off-by: David Lechner

power: domain: mediatek: split into per-SoC drivers

2026-07-22T18:54:55Z

In order to prepare addition of future SoC, split the current driver into common shared code and SoC specific drivers: - mtk-power-domain.c now only holds the common register access and power on/off/request/probe logic plus the shared power_domain_ops. - mtk-power-domain.h exposes the register definitions, the mtk_scp_domain data structures and the core helpers to the per-SoC drivers. - mt7623-power-domain.c and mt7629-power-domain.c each hold their own domain table and U_BOOT_DRIVER registration. The mt7629 driver also matches the mt7622 compatible, preserving the previous behaviour. Update the mt7622, mt7623 and mt7629 defconfigs to select the matching per-SoC driver. No functional change intended. Signed-off-by: Julien Stephan Link: https://patch.msgid.link/20260709-mt8188-add-power-domain-v2-8-589ace7d30e2@baylibre.com Signed-off-by: David Lechner

power: domain: mediatek: constify scp_domain_data instances

2026-07-22T18:54:54Z

Make all scp_domain_data instances static const by removing the mutable scpd member from struct scp_domain_data. Refactor mtk_scpsys_domain_is_on() to take struct power_domain as parameter instead of struct mtk_scp_domain_data and remove mtk_scpsys_power_request(), which only existed to associate a struct scp_domain with struct scp_domain_data. Signed-off-by: Julien Stephan Link: https://patch.msgid.link/20260709-mt8188-add-power-domain-v2-7-589ace7d30e2@baylibre.com Signed-off-by: David Lechner

power: domain: mediatek: prefix internal identifiers with mtk_

2026-07-22T18:54:54Z

Prefix internal functions, variables, and struct tags with the mtk_ prefix to avoid namespace collisions. Signed-off-by: Julien Stephan Link: https://patch.msgid.link/20260709-mt8188-add-power-domain-v2-6-589ace7d30e2@baylibre.com Signed-off-by: David Lechner

power: domain: mediatek: remove enum scp_domain_type

2026-07-22T18:54:54Z

The driver mapped each compatible to an enum scp_domain_type via the match data, then used mtk_power_domain_hook() to switch on that enum and select the per-SoC domain table. This forces every new SoC to add an enum value and a switch case in shared code. Store a pointer to the per-SoC table directly in the match data and drop the enum, the type field, and mtk_power_domain_hook(). This keeps per-SoC information in the match data where it belongs, making it possible to later split the SoC-specific tables into standalone drivers. No functional change intended. Signed-off-by: Julien Stephan Link: https://patch.msgid.link/20260709-mt8188-add-power-domain-v2-5-589ace7d30e2@baylibre.com Signed-off-by: David Lechner