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2025-07-15pmdomain: sunxi: sun20i-ppu: add A523 supportChen-Yu Tsai
A523 has a PPU like the one in the Allwinner D1 SoC. Add a compatible entry and a list of power domain names for it. Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Chen-Yu Tsai <wens@csie.org> Link: https://lore.kernel.org/r/20250712074021.805953-3-wens@kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-15pmdomain: Merge branch dt into nextUlf Hansson
Merge the immutable branch dt into next, to allow the DT bindings to be tested together with changes that are targeted for v6.17. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-15dt-bindings: power: Add A523 PPU and PCK600 power controllersChen-Yu Tsai
The A523 PPU is likely the same kind of hardware seen on previous SoCs. The A523 PCK600, as the name suggests, is likely a customized version of ARM's PCK-600 power controller. Comparing the BSP driver against ARM's PPU datasheet shows that the basic registers line up, but Allwinner's hardware has some additional delay controls in the reserved register range. As such it is likely not fully compatible with the standard ARM version. Document A523 PPU and PCK600 compatibles. Also reorder the compatible string entries so they are grouped and ordered by family first, then by SoC model. Reviewed-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Chen-Yu Tsai <wens@csie.org> Link: https://lore.kernel.org/r/20250712074021.805953-2-wens@kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-14pmdomain: Merge branch fixes into nextUlf Hansson
Merge the pmdomain fixes for v6.16-rc[n] into the next branch, to allow them to get tested together with the new changes that are targeted for v6.17. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-14cpuidle: psci: Fix cpuhotplug routine with PREEMPT_RT=yDaniel Lezcano
Currently cpu hotplug with the PREEMPT_RT option set in the kernel is not supported because the underlying generic power domain functions used in the cpu hotplug callbacks are incompatible from a lock point of view. This situation prevents the suspend to idle to reach the deepest idle state for the "cluster" as identified in the undermentioned commit. Use the compatible ones when PREEMPT_RT is enabled and remove the boolean disabling the hotplug callbacks with this option. With this change the platform can reach the deepest idle state allowing at suspend time to consume less power. Tested-on Lenovo T14s with the following script: echo 0 > /sys/devices/system/cpu/cpu3/online BEFORE=$(cat /sys/kernel/debug/pm_genpd/power-domain-cpu-cluster0/idle_states | grep S0 | awk '{ print $3 }') ; rtcwake -s 1 -m mem; AFTER=$(cat /sys/kernel/debug/pm_genpd/power-domain-cpu-cluster0/idle_states | grep S0 | awk '{ print $3 }'); if [ $BEFORE -lt $AFTER ]; then echo "Test successful" else echo "Test failed" fi echo 1 > /sys/devices/system/cpu/cpu3/online Fixes: 1c4b2932bd62 ("cpuidle: psci: Enable the hierarchical topology for s2idle on PREEMPT_RT") Cc: Raghavendra Kakarla <quic_rkakarla@quicinc.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20250709154728.733920-1-daniel.lezcano@linaro.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-14pmdomain: samsung: Fix splash-screen handover by enforcing a sync_stateUlf Hansson
It's has been reported that some Samsung platforms fails to boot with genpd's new sync_state support. Typically the problem exists for platforms where bootloaders are turning on the splash-screen and handing it over to be managed by the kernel. However, at this point, it's not clear how to correctly solve the problem. Although, to make the platforms boot again, let's add a temporary hack in the samsung power-domain provider driver, which enforces a sync_state that allows the power-domains to be reset before consumer devices starts to be attached. Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> Link: https://lore.kernel.org/all/212a1a56-08a5-48a5-9e98-23de632168d0@samsung.com Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250711114719.189441-1-ulf.hansson@linaro.org
2025-07-09cpuidle: riscv-sbi: Drop redundant sync_state supportUlf Hansson
The recent updates to the genpd core, can entirely manage the sync_state support for the cpuidle-riscv-sbi-domain. More precisely, genpd prevents our ->power_off() callback from being invoked, until all of our consumers are ready for it. Let's therefore drop the sync_state support for the cpuidle-riscv-sbi-domain as it has become redundant. Cc: Anup Patel <anup@brainfault.org> Cc: linux-riscv@lists.infradead.org Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Reviewed-by: Rahul Pathak <rpathak@ventanamicro.com> Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-25-ulf.hansson@linaro.org
2025-07-09cpuidle: psci: Drop redundant sync_state supportUlf Hansson
The recent updates to the genpd core, can entirely manage the sync_state support for the cpuidle-psci-domain. More precisely, genpd prevents our ->power_off() callback from being invoked, until all of our consumers are ready for it. Let's therefore drop the sync_state support for the cpuidle-psci-domain as it has become redundant. Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-24-ulf.hansson@linaro.org
2025-07-09pmdomain: core: Leave powered-on genpds on until sync_stateUlf Hansson
Powering-off a genpd that was on during boot, before all of its consumer devices have been probed, is certainly prone to problems. For OF based platforms we can rely on using the sync_state mechanism that the fw_devlink provides, to understand when all consumers for a genpd provider have been probed. Let's therefore prevent these genpds from being powered-off until the ->sync_state() callback gets called. Note that, for non-OF based platform we will keep relying on the late_initcall_sync, which seems to be the best we can do for now. Suggested-by: Saravana Kannan <saravanak@google.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-23-ulf.hansson@linaro.org
2025-07-09pmdomain: core: Leave powered-on genpds on until late_initcall_syncUlf Hansson
Powering-off a genpd that was on during boot, before all of its consumer devices have been probed, is certainly prone to problems. As a step to improve this situation, let's prevent these genpds from being powered-off until genpd_power_off_unused() gets called, which is a late_initcall_sync(). Note that, this still doesn't guarantee that all the consumer devices has been probed before we allow to power-off the genpds. Yet, this should be a step in the right direction. Suggested-by: Saravana Kannan <saravanak@google.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-22-ulf.hansson@linaro.org
2025-07-09pmdomain: core: Default to use of_genpd_sync_state() for genpd providersUlf Hansson
Unless the typical platform driver that act as genpd provider, has its own ->sync_state() callback implemented let's default to use of_genpd_sync_state(). More precisely, while adding a genpd OF provider let's assign the ->sync_state() callback, in case the fwnode has a device and its driver doesn't have the ->sync_state() set already. In this way the typical platform driver doesn't need to assign ->sync_state(), unless it has some additional things to manage beyond genpds. Suggested-by: Saravana Kannan <saravanak@google.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-21-ulf.hansson@linaro.org
2025-07-09driver core: Add dev_set_drv_sync_state()Saravana Kannan
This can be used by frameworks to set the sync_state() helper functions for drivers that don't already have them set. Signed-off-by: Saravana Kannan <saravanak@google.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Abel Vesa <abel.vesa@linaro.org> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-20-ulf.hansson@linaro.org
2025-07-09pmdomain: core: Add common ->sync_state() support for genpd providersUlf Hansson
If the genpd provider's fwnode doesn't have an associated struct device with it, we can make use of the generic genpd->dev and it corresponding driver internally in genpd to manage ->sync_state(). More precisely, while adding a genpd OF provider let's check if the fwnode has a device and if not, make the preparation to handle ->sync_state() internally through the genpd_provider_driver and the genpd_provider_bus. Note that, genpd providers may opt out from this behaviour by setting the GENPD_FLAG_NO_SYNC_STATE config options for the genpds in question. Suggested-by: Saravana Kannan <saravanak@google.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-19-ulf.hansson@linaro.org
2025-07-09driver core: Export get_dev_from_fwnode()Ulf Hansson
It has turned out get_dev_from_fwnode() is useful at a few other places outside of the driver core, as in gpiolib.c for example. Therefore let's make it available as a common helper function. Suggested-by: Saravana Kannan <saravanak@google.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-18-ulf.hansson@linaro.org
2025-07-09firmware: xilinx: Use of_genpd_sync_state()Ulf Hansson
To make sure genpd tries to power off unused PM domains, let's call of_genpd_sync_state() from our own ->sync_state() callback. Cc: Michal Simek <michal.simek@amd.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-17-ulf.hansson@linaro.org
2025-07-09firmware: xilinx: Don't share zynqmp_pm_init_finalize()Ulf Hansson
As there no longer any users outside the zynqmp firmware driver of zynqmp_pm_init_finalize(), let's turn into a local static function. Cc: Michal Simek <michal.simek@amd.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-16-ulf.hansson@linaro.org
2025-07-09firmware/pmdomain: xilinx: Move ->sync_state() support to firmware driverUlf Hansson
Rather than having the genpd provider to add device_links for each device that gets attached, to implement the ->sync_state() support, let's rely on fw_devlink to do this for us. In this way, we can simplify the code by moving the ->sync_state() callback into the firmware driver, so let's do that. Cc: Michael Tretter <m.tretter@pengutronix.de> Cc: Michal Simek <michal.simek@amd.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-15-ulf.hansson@linaro.org
2025-07-09pmdomain: qcom: rpmhpd: Use of_genpd_sync_state()Ulf Hansson
To make sure genpd tries to power off unused PM domains, let's call of_genpd_sync_state() from our own ->sync_state() callback. Cc: Bjorn Andersson <andersson@kernel.org> Cc: Konrad Dybcio <konradybcio@kernel.org> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-14-ulf.hansson@linaro.org
2025-07-09pmdomain: qcom: rpmpd: Use of_genpd_sync_state()Ulf Hansson
To make sure genpd tries to power off unused PM domains, let's call of_genpd_sync_state() from our own ->sync_state() callback. Cc: Bjorn Andersson <andersson@kernel.org> Cc: Konrad Dybcio <konradybcio@kernel.org> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-13-ulf.hansson@linaro.org
2025-07-09cpuidle: riscv-sbi: Opt-out from genpd's common ->sync_state() supportUlf Hansson
The riscv-sbi-domain implements its own specific ->sync_state() callback. Let's set the GENPD_FLAG_NO_SYNC_STATE to inform genpd about it. Moreover, let's call of_genpd_sync_state() to make sure genpd tries to power off unused PM domains. Cc: Anup Patel <anup@brainfault.org> Cc: linux-riscv@lists.infradead.org Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Reviewed-by: Anup Patel <anup@brainfault.org> Reviewed-by: Rahul Pathak <rpathak@ventanamicro.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-12-ulf.hansson@linaro.org
2025-07-09cpuidle: psci: Opt-out from genpd's common ->sync_state() supportUlf Hansson
The cpuidle-psci-domain implements its own specific ->sync_state() callback. Let's set the GENPD_FLAG_NO_SYNC_STATE to inform genpd about it. Moreover, let's call of_genpd_sync_state() to make sure genpd tries to power off unused PM domains. Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-11-ulf.hansson@linaro.org
2025-07-09soc/tegra: pmc: Opt-out from genpd's common ->sync_state() supportUlf Hansson
Tegra implements its own specific ->sync_state() callback for the genpd providers. Let's set the GENPD_FLAG_NO_SYNC_STATE to inform genpd about it. Moreover, let's call of_genpd_sync_state() to make sure genpd tries to power off unused PM domains. Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-10-ulf.hansson@linaro.org
2025-07-09pmdomain: core: Prepare to add the common ->sync_state() supportUlf Hansson
Before we can implement the common ->sync_state() support in genpd, we need to allow a few specific genpd providers to opt out from the new behaviour. Let's introduce GENPD_FLAG_NO_SYNC_STATE as a new genpd config option, to allow providers to opt out. Suggested-by: Saravana Kannan <saravanak@google.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-9-ulf.hansson@linaro.org
2025-07-09pmdomain: core: Export a common ->sync_state() helper for genpd providersUlf Hansson
In some cases the typical platform driver that act as genpd provider, may need its own ->sync_state() callback to manage various things. In this regards, the provider most likely wants to allow its corresponding genpds to be powered-off. For this reason, let's introduce a new genpd helper function, of_genpd_sync_state() that helps genpd provider drivers to achieve this. Suggested-by: Saravana Kannan <saravanak@google.com> Reviewed-by: Abel Vesa <abel.vesa@linaro.org> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-8-ulf.hansson@linaro.org
2025-07-09pmdomain: core: Add the genpd->dev to the genpd provider busUlf Hansson
To take the next step for a more common handling of the genpd providers, let's add the genpd->dev to the genpd provider bus when registering a genpd OF provider. Also note, to allow us to add devices to the genpd provider bus we need to make sure the bus has been registered first, which is done via a core_initcall. Hence, calls to of_genpd_add_provider_simple|onecell() must be done after the bus has been registered, else they will fail. Suggested-by: Saravana Kannan <saravanak@google.com> Reviewed-by: Abel Vesa <abel.vesa@linaro.org> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-7-ulf.hansson@linaro.org
2025-07-09pmdomain: core: Add a bus and a driver for genpd providersUlf Hansson
When we create a genpd via pm_genpd_init() we are initializing a corresponding struct device for it, but we don't add the device to any bus_type. It has not really been needed as the device is used as cookie to help us manage OPP tables. However, to prepare to make better use of the device, let's add a new genpd provider bus_type and a corresponding genpd provider driver. Subsequent changes will make use of this. Suggested-by: Saravana Kannan <saravanak@google.com> Reviewed-by: Abel Vesa <abel.vesa@linaro.org> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-6-ulf.hansson@linaro.org
2025-07-09pmdomain: core: Prevent registering devices before the busUlf Hansson
We must not register a consumer device to the genpd bus, before registering the bus itself. Even if this doesn't seem to be an issue, let's add a simple check to make sure we really avoid this from happening. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-5-ulf.hansson@linaro.org
2025-07-09pmdomain: renesas: rcar-gen4-sysc: Move init to postcore_initcallUlf Hansson
Subsequent changes to genpd adds a limitation that registering a genpd OF providers must be done after its bus registration, which is at core_initcall. To adopt to this, let's move to a postcore_initcall. Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-4-ulf.hansson@linaro.org
2025-07-09pmdomain: renesas: rmobile-sysc: Move init to postcore_initcallUlf Hansson
Subsequent changes to genpd adds a limitation that registering a genpd OF providers must be done after its bus registration, which is at core_initcall. To adopt to this, let's move to a postcore_initcall. Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-3-ulf.hansson@linaro.org
2025-07-09pmdomain: renesas: rcar-sysc: Add genpd OF provider at postcore_initcallUlf Hansson
Subsequent changes to genpd adds a limitation that registering a genpd OF providers must be done after its bus registration, which is at core_initcall. To adopt to this, let's split the initialization into two steps. The first part keep registering the PM domains with genpd at early_initcall, as this is needed to bringup the CPUs for R-Car H1, by calling rcar_sysc_power_up_cpu(). The second and new part, moves the registration of the genpd OF provider to a postcore_initcall(). Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-2-ulf.hansson@linaro.org
2025-07-09pmdomain: qcom: rpmhpd: Add Milos power domainsLuca Weiss
Add the power domains exposed by RPMH in the Qualcomm Milos platform. Signed-off-by: Luca Weiss <luca.weiss@fairphone.com> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250707-sm7635-rpmhpd-v2-2-b4aa37acb065@fairphone.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-09pmdomain: Merge branch dt into nextUlf Hansson
Merge the immutable branch dt into next, to allow the DT bindings to be tested together with changes that are targeted for v6.17. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-09dt-bindings: power: qcom,rpmpd: document the Milos RPMh Power DomainsLuca Weiss
Document the RPMh Power Domains on the Milos (e.g. SM7635) SoC. Signed-off-by: Luca Weiss <luca.weiss@fairphone.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20250707-sm7635-rpmhpd-v2-1-b4aa37acb065@fairphone.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-09pmdomain: amlogic: Constify struct meson_secure_pwrc_domain_dataChristophe JAILLET
'struct meson_secure_pwrc_domain_data' are not modified in these drivers. Constifying these structures moves some data to a read-only section, so increases overall security. On a x86_64, with allmodconfig: Before: ====== text data bss dec hex filename 9248 408 0 9656 25b8 drivers/pmdomain/amlogic/meson-secure-pwrc.o After: ===== text data bss dec hex filename 9344 304 0 9648 25b0 drivers/pmdomain/amlogic/meson-secure-pwrc.o Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/e71abd8d75dd842690e5a11e38037bcf5feac189.1751816732.git.christophe.jaillet@wanadoo.fr Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-09pmdomain: renesas: sort Renesas Kconfig configsKuninori Morimoto
Renesas Kconfig is using "SoC chip number" for CONFIG symbol, but is using "SoC chip name" for menu description. Because of it, it looks random order when we run "make menuconfig". commit 6d5aded8d57f ("soc: renesas: Sort driver description title") sorted Renesas Kconfig by "menu description title order" (= SoC chip name), but it makes confusable to add new config, because developer usually checks CONFIG symbols (= SoC chip number). Let's indicate both "SoC chip number" and "SoC chip name" in description and sort it again. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/87ikkacacf.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-09pmdomain: renesas: use menu for RenesasKuninori Morimoto
Current Renesas PM Domains appears on top page. Let's create new menu for Renesas. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/87jz4qcacr.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-09pmdomain: Merge branch fixes into nextUlf Hansson
Merge the pmdomain fixes for v6.16-rc[n] into the next branch, to allow them to get tested together with the new changes that are targeted for v6.17. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-09pmdomain: governor: Consider CPU latency tolerance from pm_domain_cpu_govMaulik Shah
pm_domain_cpu_gov is selecting a cluster idle state but does not consider latency tolerance of child CPUs. This results in deeper cluster idle state whose latency does not meet latency tolerance requirement. Select deeper idle state only if global and device latency tolerance of all child CPUs meet. Test results on SM8750 with 300 usec PM-QoS on CPU0 which is less than domain idle state entry (2150) + exit (1983) usec latency mentioned in devicetree, demonstrate the issue. # echo 300 > /sys/devices/system/cpu/cpu0/power/pm_qos_resume_latency_us Before: (Usage is incrementing) ====== # cat /sys/kernel/debug/pm_genpd/power-domain-cluster0/idle_states State Time Spent(ms) Usage Rejected Above Below S0 29817 537 8 270 0 # cat /sys/kernel/debug/pm_genpd/power-domain-cluster0/idle_states State Time Spent(ms) Usage Rejected Above Below S0 30348 542 8 271 0 After: (Usage is not incrementing due to latency tolerance) ====== # cat /sys/kernel/debug/pm_genpd/power-domain-cluster0/idle_states State Time Spent(ms) Usage Rejected Above Below S0 39319 626 14 307 0 # cat /sys/kernel/debug/pm_genpd/power-domain-cluster0/idle_states State Time Spent(ms) Usage Rejected Above Below S0 39319 626 14 307 0 Signed-off-by: Maulik Shah <maulik.shah@oss.qualcomm.com> Fixes: e94999688e3a ("PM / Domains: Add genpd governor for CPUs") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20250709-pmdomain_qos-v2-1-976b12257899@oss.qualcomm.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-06-25pmdomain: thead: Instantiate GPU power sequencer via auxiliary busMichal Wilczynski
In order to support the complex power sequencing required by the TH1520 GPU, the AON power domain driver must be responsible for initiating the corresponding sequencer driver. This functionality is specific to platforms where the GPU power sequencing hardware is controlled by the AON block. Extend the AON power domain driver to check for the presence of the "gpu-clkgen" reset in its own device tree node. If the property is found, create and register a new auxiliary device. This device acts as a proxy that allows the dedicated `pwrseq-thead-gpu` auxiliary driver to bind and take control of the sequencing logic. Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com> Link: https://lore.kernel.org/r/20250623-apr_14_for_sending-v6-3-6583ce0f6c25@samsung.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-06-25pmdomain: Merge branch dt into nextUlf Hansson
Merge the immutable branch dt into next, to allow the DT bindings to be tested together with changes that are targeted for v6.17. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-06-25dt-bindings: firmware: thead,th1520: Add resets for GPU clkgenMichal Wilczynski
Extend the TH1520 AON to describe the GPU clkgen reset line, required for proper GPU clock and reset sequencing. The T-HEAD TH1520 GPU requires coordinated management of two clocks (core and sys) and two resets (GPU core reset and GPU clkgen reset). Only the clkgen reset is exposed at the AON level, to support SoC specific initialization handled through a dedicated auxiliary power sequencing driver. The GPU core reset remains described in the GPU device node, as from the GPU driver's perspective, there is only a single reset line [1]. This follows upstream maintainers' recommendations [2] to abstract SoC specific details into the PM domain layer rather than exposing them to drivers directly. Link: https://lore.kernel.org/all/816db99d-7088-4c1a-af03-b9a825ac09dc@imgtec.com/ - [1] Link: https://lore.kernel.org/all/38d9650fc11a674c8b689d6bab937acf@kernel.org/ - [2] Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Drew Fustini <drew@pdp7.com> Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com> Link: https://lore.kernel.org/r/20250623-apr_14_for_sending-v6-2-6583ce0f6c25@samsung.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-06-25pmdomain: core: Use of_fwnode_handle()Ulf Hansson
Let's avoid accessing the np->fwnode directly and use the common helper of_fwnode_handle() instead. Suggested-by: Saravana Kannan <saravanak@google.com> Reviewed-by: Dhruva Gole <d-gole@ti.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250523134025.75130-2-ulf.hansson@linaro.org
2025-06-18pmdomain: arm: scmi_pm_domain: remove code clutterLukas Bulwahn
There is no need to introduce the boolean power_on to select the constant value for state. Simply pass the value for state as argument. Just remove this code clutter. No functional change. Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Link: https://lore.kernel.org/r/20250606090802.597504-1-lukas.bulwahn@redhat.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-06-18pmdomain: apple: Drop default ARCH_APPLE in KconfigSven Peter
When the first driver for Apple Silicon was upstreamed we accidentally included `default ARCH_APPLE` in its Kconfig which then spread to almost every subsequent driver. As soon as ARCH_APPLE is set to y this will pull in many drivers as built-ins which is not what we want. Thus, drop `default ARCH_APPLE` from Kconfig. Signed-off-by: Sven Peter <sven@kernel.org> Reviewed-by: Janne Grunau <j@jannau.net> Link: https://lore.kernel.org/r/20250612-apple-kconfig-defconfig-v1-1-0e6f9cb512c1@kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-06-18imx8m-blk-ctrl: set ISI panic write hurry levelKrzysztof Hałasa
Apparently, ISI needs cache settings similar to LCDIF. Otherwise we get artefacts in the image. Tested on i.MX8MP. Signed-off-by: Krzysztof Hałasa <khalasa@piap.pl> Link: https://lore.kernel.org/r/m3ldr69lsw.fsf@t19.piap.pl 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>
2025-06-18dt-bindings: rockchip: pmu: Add compatible for RK3528Jonas Karlman
Add the compatible for the pmu mfd on RK3528 SoC. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20250518220707.669515-4-jonas@kwiboo.se Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-06-18dt-bindings: power: rockchip: Add support for RK3528Jonas Karlman
Add the compatible string and power domains for RK3528 SoC. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20250518220707.669515-2-jonas@kwiboo.se Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-06-15Linux 6.16-rc2v6.16-rc2Linus Torvalds
2025-06-15Merge tag 'kbuild-fixes-v6.16' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - Move warnings about linux/export.h from W=1 to W=2 - Fix structure type overrides in gendwarfksyms * tag 'kbuild-fixes-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: gendwarfksyms: Fix structure type overrides kbuild: move warnings about linux/export.h from W=1 to W=2
generated by cgit (git 2.34.1) at 2025-09-10 18:28:24 +0000