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has been chosen to replace the boilerplate/reference.
Reviewed-by: Allison Randal <allison@lohutok.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The clock register definitions are now used (almost) exclusively in the clk driver, and that relies on no other mach/*.h header files any more. Remove the dependency on mach/pxa*-regs.h by addressing the registers as offsets from a void __iomem * pointer, which is either passed from a board file, or (for the moment) ioremapped at boot time from a hardcoded address in case of DT (this should be moved into the DT of course). Cc: linux-clk@vger.kernel.org Acked-by: Stephen Boyd <sboyd@kernel.org> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The driver needs some low-level register access for setting the core and bus frequencies. These registers are owned by the clk driver, so move the low-level access into that driver with a slightly higher-level interface and avoid any machine header file dependencies. Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: linux-clk@vger.kernel.org Cc: linux-pm@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Pull RTC updates from Alexandre Belloni:
"The bulk of the patches are about replacing the uie_unsupported struct
rtc_device member by a feature bit.
Subsystem:
- remove uie_unsupported, all users have been converted to clear
RTC_FEATURE_UPDATE_INTERRUPT and provide a reason
- RTCs with an alarm with a resolution of a minute are now letting
the core handle rounding down the alarm time
- fix use-after-free on device removal
New driver:
- OP-TEE RTC PTA
Drivers:
- sun6i: Add H616 support
- cmos: Fix the AltCentury for AMD platforms
- spear: set range"
* tag 'rtc-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (56 commits)
rtc: check if __rtc_read_time was successful
rtc: gamecube: Fix refcount leak in gamecube_rtc_read_offset_from_sram
rtc: mc146818-lib: Fix the AltCentury for AMD platforms
rtc: optee: add RTC driver for OP-TEE RTC PTA
rtc: pm8xxx: Return -ENODEV if set_time disallowed
rtc: pm8xxx: Attach wake irq to device
clk: sunxi-ng: sun6i-rtc: include clk/sunxi-ng.h
rtc: remove uie_unsupported
rtc: xgene: stop using uie_unsupported
rtc: hym8563: switch to RTC_FEATURE_UPDATE_INTERRUPT
rtc: hym8563: let the core handle the alarm resolution
rtc: hym8563: switch to devm_rtc_allocate_device
rtc: efi: switch to RTC_FEATURE_UPDATE_INTERRUPT
rtc: efi: switch to devm_rtc_allocate_device
rtc: add new RTC_FEATURE_ALARM_WAKEUP_ONLY feature
rtc: spear: fix spear_rtc_read_time
rtc: spear: drop uie_unsupported
rtc: spear: set range
rtc: spear: switch to devm_rtc_allocate_device
rtc: pcf8563: switch to RTC_FEATURE_UPDATE_INTERRUPT
...
The RTC power domain in sun6i and newer SoCs manages the 16 MHz RC oscillator (called "IOSC" or "osc16M") and the optional 32 kHz crystal oscillator (called "LOSC" or "osc32k"). Starting with the H6, this power domain also handles the 24 MHz DCXO (called variously "HOSC", "dcxo24M", or "osc24M") as well. The H6 also adds a calibration circuit for IOSC. Later SoCs introduce further variations on the design: - H616 adds an additional mux for the 32 kHz fanout source. - R329 adds an additional mux for the RTC timekeeping clock, a clock for the SPI bus between power domains inside the RTC, and removes the IOSC calibration functionality. Take advantage of the CCU framework to handle this increased complexity. This driver is intended to be a drop-in replacement for the existing RTC clock provider. So some runtime adjustment of the clock parents is needed, both to handle hardware differences, and to support the old binding which omitted some of the input clocks. Signed-off-by: Samuel Holland <samuel@sholland.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20220203021736.13434-6-samuel@sholland.org
Add CPU idle support for SAMA7G5. Support will make use of PMC_CPU_RATIO register to divide the CPU clock by 16 before switching it to idle and use automatic self-refresh option of DDR controller. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Acked-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20220113144900.906370-5-claudiu.beznea@microchip.com
Like the individual CCU drivers, it can be beneficial for memory
consumption of cross-platform configurations to only load the CCU core
on the relevant platform. For example, a generic arm64 kernel sees the
following improvement when building the CCU core and drivers as modules:
before:
text data bss dec hex filename
13882360 5251670 360800 19494830 12977ae vmlinux
after:
text data bss dec hex filename
13734787 5086442 360800 19182029 124b1cd vmlinux
So the result is a 390KB total reduction in kernel image size.
The one early clock provider (sun5i) requires the core to be built in.
Now that loading the MMC driver will trigger loading the CCU core, the
MMC timing mode functions do not need a compile-time fallback.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20211119033338.25486-5-samuel@sholland.org
These stubs are needed to allow the tegra-cpuidle driver to be compile-tested. Signed-off-by: Thierry Reding <treding@nvidia.com>
Add register definitions for SAMA7G5's master clock. These would be also used by architecture specific power saving code. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20210719080317.1045832-3-claudiu.beznea@microchip.com
* clk-legacy: clkdev: remove unused clkdev_alloc() interfaces clkdev: remove CONFIG_CLKDEV_LOOKUP m68k: coldfire: remove private clk_get/clk_put m68k: coldfire: use clkdev_lookup on most coldfire mips: ralink: convert to CONFIG_COMMON_CLK mips: ar7: convert to CONFIG_COMMON_CLK mips: ar7: convert to clkdev_lookup * clk-vc5: clk: vc5: fix output disabling when enabling a FOD * clk-allwinner: clk: sunxi-ng: v3s: fix incorrect postdivider on pll-audio * clk-nvidia: clk: tegra: clk-tegra124-dfll-fcpu: don't use devm functions for regulator clk: tegra: tegra124-emc: Fix clock imbalance in emc_set_timing() clk: tegra: Add stubs needed for compile-testing clk: tegra: Don't deassert reset on enabling clocks clk: tegra: Mark external clocks as not having reset control clk: tegra: cclk: Handle thermal DIV2 CPU frequency throttling clk: tegra: Don't allow zero clock rate for PLLs clk: tegra: Halve SCLK rate on Tegra20 clk: tegra: Ensure that PLLU configuration is applied properly clk: tegra: Fix refcounting of gate clocks clk: tegra30: Use 300MHz for video decoder by default * clk-imx: clk: imx8mq: remove SYS PLL 1/2 clock gates clk: imx: scu: Do not enable runtime PM for CPU clks clk: imx: scu: add parent save and restore clk: imx: scu: Only save DC SS clock using non-cached clock rate clk: imx: scu: Add A72 frequency scaling support clk: imx: scu: Add A53 frequency scaling support clk: imx: scu: bypass pi_pll enable status restore clk: imx: scu: detach pd if can't power up clk: imx: scu: bypass cpu clock save and restore clk: imx: scu: add parallel port clock ops clk: imx: scu: add more scu clocks clk: imx: scu: add enet rgmii gpr clocks clk: imx8qm: add clock valid resource checking clk: imx8qxp: add clock valid checking mechnism clk: imx: scu: add gpr clocks support clk: imx: scu: remove legacy scu clock binding support dt-bindings: arm: imx: scu: drop deprecated legacy clock binding dt-bindings: arm: imx: scu: fix naming typo of clk compatible string clk: imx: Remove the audio ipg clock from imx8mp