kernel/linux.git/drivers/cpufreq/Kconfig.arm, branch v6.3

cpufreq: remove s3c24xx drivers

2023-01-16T08:26:06+00:00

All s3c24xx platforms were removed, so these five drivers are all obsolete now. Reviewed-by: Krzysztof Kozlowski Acked-by: Viresh Kumar Signed-off-by: Arnd Bergmann

cpufreq: remove sa1100 driver

2023-01-16T08:26:05+00:00

The sa11xx platform has two cpufreq drivers, one for the older StrongARM1100 SoC, and a second one for StrongARM1110. After the removal of most SA1100 based machines, this driver is unused, and only the sa1110-cpufreq driver remains. Acked-by: Viresh Kumar Signed-off-by: Arnd Bergmann

cpufreq: apple-soc: Add new driver to control Apple SoC CPU P-states

2022-11-30T05:42:18+00:00

This driver implements CPU frequency scaling for Apple Silicon SoCs, including M1 (t8103), M1 Max/Pro/Ultra (t600x), and M2 (t8112). Each CPU cluster has its own register set, and frequency management is fully automated by the hardware; the driver only has to write one register. There is boost frequency support, but the hardware will only allow their use if only a subset of cores in a cluster are in non-deep-idle. Since we don't support deep idle yet, these frequencies are not achievable, but the driver supports them. They will remain disabled in the device tree until deep idle is implemented, to avoid confusing users. This driver does not yet implement the memory controller performance state tuning that usually accompanies higher CPU p-states. This will be done in a future patch. Acked-by: Marc Zyngier Signed-off-by: Hector Martin Signed-off-by: Viresh Kumar

cpufreq: ti: Enable ti-cpufreq for ARCH_K3

2022-11-07T10:00:11+00:00

Make ti-cpufreq driver depend on ARCH_K3 and set it to `default y` so it is always enabled for platforms that it depends on. Signed-off-by: Dave Gerlach Signed-off-by: Vibhore Vardhan Signed-off-by: Viresh Kumar

nvmem: prefix all symbols with NVMEM_

2022-09-24T12:54:38+00:00

This unifies all NVMEM symbols. They follow one style now. Reviewed-by: Matthias Brugger Acked-by: Arnd Bergmann Signed-off-by: Rafał Miłecki Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20220916122100.170016-8-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

cpufreq: mediatek-hw: Add support for CPUFREQ HW

2021-09-06T09:45:19+00:00

Introduce cpufreq HW driver which can support CPU frequency adjust in MT6779 platform. Signed-off-by: Hector.Yuan [ Viresh: Massaged the patch and cleaned some stuff. ] Signed-off-by: Viresh Kumar

cpufreq: CPPC: Add support for frequency invariance

2021-03-22T03:25:28+00:00

The Frequency Invariance Engine (FIE) is providing a frequency scaling correction factor that helps achieve more accurate load-tracking. Normally, this scaling factor can be obtained directly with the help of the cpufreq drivers as they know the exact frequency the hardware is running at. But that isn't the case for CPPC cpufreq driver. Another way of obtaining that is using the arch specific counter support, which is already present in kernel, but that hardware is optional for platforms. This patch updates the CPPC driver to register itself with the topology core to provide its own implementation (cppc_scale_freq_tick()) of topology_scale_freq_tick() which gets called by the scheduler on every tick. Note that the arch specific counters have higher priority than CPPC counters, if available, though the CPPC driver doesn't need to have any special handling for that. On an invocation of cppc_scale_freq_tick(), we schedule an irq work (since we reach here from hard-irq context), which then schedules a normal work item and cppc_scale_freq_workfn() updates the per_cpu arch_freq_scale variable based on the counter updates since the last tick. To allow platforms to disable this CPPC counter-based frequency invariance support, this is all done under CONFIG_ACPI_CPPC_CPUFREQ_FIE, which is enabled by default. This also exports sched_setattr_nocheck() as the CPPC driver can be built as a module. Cc: linux-acpi@vger.kernel.org Reviewed-by: Ionela Voinescu Tested-by: Ionela Voinescu Tested-by: Vincent Guittot Acked-by: Rafael J. Wysocki Signed-off-by: Viresh Kumar

cpufreq: remove tango driver

2021-01-21T04:04:46+00:00

The tango platform is getting removed, so the driver is no longer needed. Cc: Marc Gonzalez Cc: Mans Rullgard Signed-off-by: Arnd Bergmann [ Viresh: Update cpufreq-dt-platdev.c as well ] Signed-off-by: Viresh Kumar

cpufreq: imx: fix NVMEM_IMX_OCOTP dependency

2020-12-07T07:32:38+00:00

A driver should not 'select' drivers from another subsystem. If NVMEM is disabled, this one results in a warning: WARNING: unmet direct dependencies detected for NVMEM_IMX_OCOTP Depends on [n]: NVMEM [=n] && (ARCH_MXC [=y] || COMPILE_TEST [=y]) && HAS_IOMEM [=y] Selected by [y]: - ARM_IMX6Q_CPUFREQ [=y] && CPU_FREQ [=y] && (ARM || ARM64 [=y]) && ARCH_MXC [=y] && REGULATOR_ANATOP [=y] Change the 'select' to 'depends on' to prevent it from going wrong, and allow compile-testing without that driver, since it is only a runtime dependency. Fixes: 2782ef34ed23 ("cpufreq: imx: Select NVMEM_IMX_OCOTP") Signed-off-by: Arnd Bergmann Signed-off-by: Viresh Kumar

Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2020-10-24T17:33:08+00:00

Pull ARM SoC platform updates from Olof Johansson: "SoC changes, a substantial part of this is cleanup of some of the older platforms that used to have a bunch of board files. In particular: - Remove non-DT i.MX platforms that haven't seen activity in years, it's time to remove them. - A bunch of cleanup and removal of platform data for TI/OMAP platforms, moving over to genpd for power/reset control (yay!) - Major cleanup of Samsung S3C24xx and S3C64xx platforms, moving them closer to multiplatform support (not quite there yet, but getting close). There are a few other changes too, smaller fixlets, etc. For new platform support, the primary ones are: - New SoC: Hisilicon SD5203, ARM926EJ-S platform. - Cpufreq support for i.MX7ULP" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (121 commits) ARM: mstar: Select MStar intc ARM: stm32: Replace HTTP links with HTTPS ones ARM: debug: add UART early console support for SD5203 ARM: hisi: add support for SD5203 SoC ARM: omap3: enable off mode automatically clk: imx: imx35: Remove mx35_clocks_init() clk: imx: imx31: Remove mx31_clocks_init() clk: imx: imx27: Remove mx27_clocks_init() ARM: imx: Remove unused definitions ARM: imx35: Retrieve the IIM base address from devicetree ARM: imx3: Retrieve the AVIC base address from devicetree ARM: imx3: Retrieve the CCM base address from devicetree ARM: imx31: Retrieve the IIM base address from devicetree ARM: imx27: Retrieve the CCM base address from devicetree ARM: imx27: Retrieve the SYSCTRL base address from devicetree ARM: s3c64xx: bring back notes from removed debug-macro.S ARM: s3c24xx: fix Wunused-variable warning on !MMU ARM: samsung: fix PM debug build with DEBUG_LL but !MMU MAINTAINERS: mark linux-samsung-soc list non-moderated ARM: imx: Remove remnant board file support pieces ...