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2025-11-19pmdomain: rockchip: Add support for RV1126BFinley Xiao
Add configuration and power domains for RV1126 SoC. Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-09-17pmdomain: rockchip: enable ROCKCHIP_PM_DOMAINS with ARCH_ROCKCHIPMikko Rapeli
On rk3399 based rockpi4b, mounting rootfs from mmc fails unless ROCKCHIP_PM_DOMAINS is enabled. Accoriding to Heiko Stübner <heiko@sntech.de> all SoCs since 2012 have power domains so the support should be enabled by default on both arm and arm64. Failing boot without CONFIG_ROCKCHIP_PM_DOMAINS=y: https://ledge.validation.linaro.org/scheduler/job/119268 /dev/disk/by-partuuid/1d48ffd8-f2a7-4a33-b52f-186089b3c85e: Can't lookup blockdev /dev/disk/by-partuuid/1d48ffd8-f2a7-4a33-b52f-186089b3c85e: Can't lookup blockdev /dev/disk/by-partuuid/1d48ffd8-f2a7-4a33-b52f-186089b3c85e: Can't lookup blockdev /dev/disk/by-partuuid/1d48ffd8-f2a7-4a33-b52f-186089b3c85e: Can't lookup blockdev /dev/disk/by-partuuid/1d48ffd8-f2a7-4a33-b52f-186089b3c85e: Can't lookup blockdev /dev/disk/by-partuuid/1d48ffd8-f2a7-4a33-b52f-186089b3c85e: Can't lookup blockdev dw-apb-uart ff1a0000.serial: forbid DMA for kernel console root '/dev/disk/by-partuuid/1d48ffd8-f2a7-4a33-b52f-186089b3c85e' doesn't exist or does not contain a /dev. rk_gmac-dwmac fe300000.ethernet: deferred probe timeout, ignoring dependency rk_gmac-dwmac fe300000.ethernet: probe with driver rk_gmac-dwmac failed with error -110 rk_iommu ff650800.iommu: deferred probe timeout, ignoring dependency rk_iommu ff650800.iommu: probe with driver rk_iommu failed with error -110 dwmmc_rockchip fe320000.mmc: deferred probe timeout, ignoring dependency rockchip-typec-phy ff7c0000.phy: deferred probe timeout, ignoring dependency dwmmc_rockchip fe320000.mmc: probe with driver dwmmc_rockchip failed with error -110 rockchip-typec-phy ff7c0000.phy: probe with driver rockchip-typec-phy failed with error -110 rockchip-typec-phy ff800000.phy: deferred probe timeout, ignoring dependency rockchip-typec-phy ff800000.phy: probe with driver rockchip-typec-phy failed with error -110 rk_iommu ff660480.iommu: deferred probe timeout, ignoring dependency rk_iommu ff660480.iommu: probe with driver rk_iommu failed with error -110 rk_iommu ff8f3f00.iommu: deferred probe timeout, ignoring dependency rk_iommu ff8f3f00.iommu: probe with driver rk_iommu failed with error -110 rk_iommu ff903f00.iommu: deferred probe timeout, ignoring dependency rk_iommu ff903f00.iommu: probe with driver rk_iommu failed with error -110 rk_iommu ff914000.iommu: deferred probe timeout, ignoring dependency rk_iommu ff914000.iommu: probe with driver rk_iommu failed with error -110 rk_iommu ff924000.iommu: deferred probe timeout, ignoring dependency rk_iommu ff924000.iommu: probe with driver rk_iommu failed with error -110 platform fe800000.usb: deferred probe pending: platform: wait for supplier /phy@ff7c0000/usb3-port sdhci-arasan fe330000.mmc: deferred probe timeout, ignoring dependency platform fe900000.usb: deferred probe pending: platform: wait for supplier /phy@ff800000/usb3-port sdhci-arasan fe330000.mmc: probe with driver sdhci-arasan failed with error -110 platform ff1d0000.spi: deferred probe pending: (reason unknown) platform hdmi-sound: deferred probe pending: asoc-simple-card: parse error Working boot with CONFIG_ROCKCHIP_PM_DOMAINS=y: https://ledge.validation.linaro.org/scheduler/job/119272 dwmmc_rockchip fe320000.mmc: IDMAC supports 32-bit address mode. dwmmc_rockchip fe320000.mmc: Using internal DMA controller. dwmmc_rockchip fe320000.mmc: Version ID is 270a dwmmc_rockchip fe320000.mmc: DW MMC controller at irq 45,32 bit host data width,256 deep fifo dwmmc_rockchip fe320000.mmc: Got CD GPIO ff1a0000.serial: ttyS2 at MMIO 0xff1a0000 (irq = 44, base_baud = 1500000) is a 16550A printk: legacy console [ttyS2] enabled mmc_host mmc1: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, actual 400000HZ div = 0) dw_wdt ff848000.watchdog: No valid TOPs array specified mmc_host mmc1: Bus speed (slot 0) = 50000000Hz (slot req 50000000Hz, actual 50000000HZ div = 0) mmc0: CQHCI version 5.10 rk_gmac-dwmac fe300000.ethernet: IRQ eth_wake_irq not found mmc1: new high speed SDHC card at address aaaa fan53555-regulator 0-0040: FAN53555 Option[8] Rev[1] Detected! fan53555-regulator 0-0041: FAN53555 Option[8] Rev[1] Detected! rk_gmac-dwmac fe300000.ethernet: IRQ eth_lpi not found mmcblk1: mmc1:aaaa SC16G 14.8 GiB rk_gmac-dwmac fe300000.ethernet: IRQ sfty not found GPT:Primary header thinks Alt. header is not at the end of the disk. rk_gmac-dwmac fe300000.ethernet: Deprecated MDIO bus assumption used GPT:1978417 != 31116287 rk_gmac-dwmac fe300000.ethernet: PTP uses main clock GPT:Alternate GPT header not at the end of the disk. rk_gmac-dwmac fe300000.ethernet: clock input or output? (input). GPT:1978417 != 31116287 rk_gmac-dwmac fe300000.ethernet: TX delay(0x28). GPT: Use GNU Parted to correct GPT errors. rk_gmac-dwmac fe300000.ethernet: RX delay(0x11). mmcblk1: p1 p2 p3 p4 p5 p6 p7 p8 Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Suggested-by: Ulf Hansson <ulf.hansson@linaro.org> Suggested-by: Heiko Stübner <heiko@sntech.de> Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mikko Rapeli <mikko.rapeli@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-09-11pmdomain: rockchip: Fix regulator dependency with GENPD_FLAG_NO_STAY_ONUlf Hansson
The deferred regulator retrieval for Rockchip PM domains are causing some weird dependencies. More precisely, if the power-domain is powered-on from the HW perspective, its corresponding regulator must not be powered-off via regulator_init_complete(), which is a late_initcall_sync. Even on platforms that don't have the domain-supply regulator specified for the power-domain provider, may suffer from these problems. More precisely, things just happen to work before, because genpd_power_off_unused() (also a late_initcall_sync) managed to power-off the PM domain before regulator_init_complete() powered-off the regulator. Ideally this fragile dependency must be fixed properly for the Rockchip PM domains, but until then, let's fallback to the previous behaviour by using the GENPD_FLAG_NO_STAY_ON flag. Link: https://lore.kernel.org/all/20250902-rk3576-lockup-regression-v1-1-c4a0c9daeb00@collabora.com/ Reported-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Sebastian Reichel <sebastian.reichel@collabora.com> Fixes: 0e789b491ba0 ("pmdomain: core: Leave powered-on genpds on until sync_state") Fixes: 13a4b7fb6260 ("pmdomain: core: Leave powered-on genpds on until late_initcall_sync") Tested-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com> Tested-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-06-18pmdomain: rockchip: Add support for RK3528Jonas Karlman
Add configuration and power domains for RK3528 SoC. Only PD_GPU can fully be powered down. PD_RKVDEC, PD_RKVENC, PD_VO and PD_VPU are used by miscellaneous devices in RK3528. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Link: https://lore.kernel.org/r/20250518220707.669515-3-jonas@kwiboo.se Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-04-23pmdomain: rockchip: Add support for RK3562 SoCFinley Xiao
This driver is modified to support RK3562 SoC. Add support to ungate clk. Add support to shut down memory for RK3562. Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com> Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20250415032314.44997-2-kever.yang@rock-chips.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-03-05pmdomain: rockchip: add regulator dependencyArnd Bergmann
When CONFIG_REGULATOR is disabled, this pmdomain driver fails to build: drivers/pmdomain/rockchip/pm-domains.c:653:30: error: implicit declaration of function 'devm_of_regulator_get'; did you mean 'devm_regulator_get'? [-Wimplicit-function-declaration] 653 | pd->supply = devm_of_regulator_get(pmu->dev, pd->node, "domain"); | ^~~~~~~~~~~~~~~~~~~~~ | devm_regulator_get drivers/pmdomain/rockchip/pm-domains.c:653:28: error: assignment to 'struct regulator *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 653 | pd->supply = devm_of_regulator_get(pmu->dev, pd->node, "domain"); | ^ Add a Kconfig dependency. Fixes: db6df2e3fc16 ("pmdomain: rockchip: add regulator support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com> Reviewed-by: Dragan Simic <dsimic@manjaro.org> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20250304142803.689201-1-arnd@kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-02-28pmdomain: rockchip: add regulator supportSebastian Reichel
Some power domains require extra voltages to be applied. For example trying to enable the GPU power domain on RK3588 fails when the SoC does not have VDD GPU enabled. The same is expected to happen for the NPU, which also has a dedicated supply line. We get the regulator using devm_of_regulator_get(), so a missing dependency in the devicetree is handled gracefully by printing a warning and creating a dummy regulator. This is necessary, since existing DTs do not have the regulator described. They might still work if the regulator is marked as always-on. It is also working if the regulator is enabled at boot time and the GPU driver is probed before the kernel disables unused regulators. The regulator itself is not acquired at driver probe time, since that creates an unsolvable circular dependency. The power domain driver must be probed early, since SoC peripherals need it. Regulators on the other hand depend on SoC peripherals like SPI, I2C or GPIO. MediaTek does not run into this, since they have two power domain drivers. Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Link: https://lore.kernel.org/r/20250220-rk3588-gpu-pwr-domain-regulator-v6-7-a4f9c24e5b81@kernel.org [Ulf: Fixed conflict when applying] Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-02-28pmdomain: rockchip: fix rockchip_pd_power error handlingPeter Geis
The calls rockchip_pd_power makes to rockchip_pmu_set_idle_request lack any return error handling, causing device drivers to incorrectly believe the hardware idle requests succeed when they may have failed. This leads to software possibly accessing hardware that is powered off and the subsequent SError panic that follows. Add error checking and return errors to the calling function to prevent such crashes. gst-launch-1.0 videotestsrc num-buffers=2000 ! v4l2jpegenc ! fakesink Setting pipeline to PAUSED ...er-x64 Pipeline is PREROLLING ... Redistribute latency... rockchip-pm-domain ff100000.syscon:power-controller: failed to get ack on domain 'hevc', val=0x98260 SError Interrupt on CPU2, code 0x00000000bf000002 -- SError Signed-off-by: Peter Geis <pgwipeout@gmail.com> Link: https://lore.kernel.org/r/20241214215802.23989-1-pgwipeout@gmail.com Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Link: https://lore.kernel.org/r/20250220-rk3588-gpu-pwr-domain-regulator-v6-5-a4f9c24e5b81@kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-02-28pmdomain: rockchip: reduce indentation in rockchip_pd_powerSebastian Reichel
Rework the logic, so that the function exits early when the power domain state is already correct to reduce code indentation. No functional change intended. Reviewed-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Adrian Larumbe <adrian.larumbe@collabora.com> # On Rock 5B Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Link: https://lore.kernel.org/r/20250220-rk3588-gpu-pwr-domain-regulator-v6-4-a4f9c24e5b81@kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-02-28pmdomain: rockchip: forward rockchip_do_pmu_set_power_domain errorsSebastian Reichel
Currently rockchip_do_pmu_set_power_domain prints a warning if there have been errors turning on the power domain, but it does not return any errors and rockchip_pd_power() tries to continue setting up the QOS registers. This usually results in accessing unpowered registers, which triggers an SError and a full system hang. This improves the error handling by forwarding the error to avoid kernel panics. Reviewed-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Adrian Larumbe <adrian.larumbe@collabora.com> # On Rock 5B Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Link: https://lore.kernel.org/r/20250220-rk3588-gpu-pwr-domain-regulator-v6-3-a4f9c24e5b81@kernel.org [Ulf: Fixed conflict when applying] Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-02-28pmdomain: rockchip: cleanup mutex handling in rockchip_pd_powerSebastian Reichel
Use the cleanup infrastructure to handle the mutex, which slightly improve code readability for this function. Reviewed-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Adrian Larumbe <adrian.larumbe@collabora.com> # On Rock 5B Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Link: https://lore.kernel.org/r/20250220-rk3588-gpu-pwr-domain-regulator-v6-2-a4f9c24e5b81@kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-02-24pmdomain: rockchip: Fix build errorUlf Hansson
To resolve the build error with undefined reference to `arm_smccc_1_1_get_conduit', let's add a build dependency to HAVE_ARM_SMCCC_DISCOVERY. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Fixes: 61eeb9678789 ("pmdomain: rockchip: Check if SMC could be handled by TA") Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-02-19pmdomain: rockchip: Check if SMC could be handled by TAShawn Lin
Non-existent trusted-firmware could lead to SMC calls into some unset location, that breaks the system. Let's check that it's supported before executing the SMC. Reported-by: Steven Price <steven.price@arm.com> Suggested-by: Heiko Stuebner <heiko@sntech.de> Fixes: 58ebba35ddab ("pmdomain: rockchip: Add smc call to inform firmware") Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Steven Price <steven.price@arm.com> Link: https://lore.kernel.org/r/1739926689-151827-1-git-send-email-shawn.lin@rock-chips.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-02-13pmdomain: rockchip: Add smc call to inform firmwareShawn Lin
Inform firmware to keep the power domain on or off. Suggested-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/1738736156-119203-5-git-send-email-shawn.lin@rock-chips.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2024-09-13pmdomain: rockchip: Add gating masks for rk3576Detlev Casanova
The RK3576 SoC needs to ungate the power domains before their status can be modified. The values have been taken from the rockchip downstream driver. Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com> Link: https://lore.kernel.org/r/20240829202732.75961-3-detlev.casanova@collabora.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2024-09-13pmdomain: rockchip: Add gating supportDetlev Casanova
Some rockchip SoC need to ungate power domains before their power status can be changed. Each power domain has a gate mask that is set to 1 to ungate it when manipulating power status, then set back to 0 to gate it again. Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com> Link: https://lore.kernel.org/r/20240829202732.75961-2-detlev.casanova@collabora.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2024-09-13pmdomain: rockchip: Simplify dropping OF node referenceKrzysztof Kozlowski
Drop OF node reference immediately after using it in syscon_node_to_regmap(), which is both simpler and typical/expected code pattern. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20240825183116.102953-1-krzysztof.kozlowski@linaro.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2024-09-13pmdomain: rockchip: Simplify locking with guard()Krzysztof Kozlowski
Simplify error handling (smaller error handling) over locks with guard(). Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20240823-cleanup-h-guard-pm-domain-v1-2-8320722eaf39@linaro.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2024-09-13pmdomain: rockchip: Simplify with scoped for each OF child loopKrzysztof Kozlowski
Use scoped for_each_available_child_of_node_scoped() and for_each_child_of_node_scoped() when iterating over device nodes to make code a bit simpler. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20240823-cleanup-h-guard-pm-domain-v1-1-8320722eaf39@linaro.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2024-08-20pmdomain: rockchip: Add support for RK3576 SoCFinley Xiao
Add configuration for RK3576 SoC and list the power domains. Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com> Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com> Reviewed-by: Elaine Zhang<zhangqing@rock-chips.com> Link: https://lore.kernel.org/r/20240814222824.3170-3-detlev.casanova@collabora.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2023-10-17pmdomain: Use device_get_match_data()Rob Herring
Use preferred device_get_match_data() instead of of_match_device() to get the driver match data. With this, adjust the includes to explicitly include the correct headers. Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20231006224614.444488-1-robh@kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2023-10-04pmdomain: rockchip: Move Kconfig option to the pmdomain subsystemUlf Hansson
The Kconfig option belongs closer to the corresponding implementation, hence let's move it from the soc subsystem to the pmdomain subsystem. Cc: Heiko Stuebner <heiko@sntech.de> Cc: <linux-rockchip@lists.infradead.org> Acked-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2023-09-13pmdomain: Rename the genpd subsystem to pmdomainUlf Hansson
It has been pointed out that naming a subsystem "genpd" isn't very self-explanatory and the acronym itself that means Generic PM Domain, is known only by a limited group of people. In a way to improve the situation, let's rename the subsystem to pmdomain, which ideally should indicate that this is about so called Power Domains or "PM domains" as we often also use within the Linux Kernel terminology. Suggested-by: Rafael J. Wysocki <rafael@kernel.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Rafael J. Wysocki <rafael@kernel.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230912221127.487327-1-ulf.hansson@linaro.org
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