| Message ID | 20191010203043.1241612-9-arnd@arndb.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | ARM: samsung platform cleanup | expand |
On Thu, Oct 10, 2019 at 10:29:53PM +0200, Arnd Bergmann wrote: > This is the only part of plat-samsung that is really > shared between the s3c and s5p ports. Moving it to > drivers/soc/ lets us make them completely independent. > > Signed-off-by: Arnd Bergmann <arnd@arndb.de> > --- > arch/arm/mach-s5pv210/Kconfig | 1 + > arch/arm/plat-samsung/Kconfig | 49 +---------- > arch/arm/plat-samsung/Makefile | 2 - > .../arm/plat-samsung/include/plat/pm-common.h | 70 +--------------- > drivers/soc/samsung/Kconfig | 48 ++++++++++- > drivers/soc/samsung/Makefile | 3 + > .../soc/samsung/s3c-pm-check.c | 2 +- > .../soc/samsung/s3c-pm-debug.c | 3 +- > include/linux/soc/samsung/s3c-pm.h | 84 +++++++++++++++++++ > 9 files changed, 139 insertions(+), 123 deletions(-) > rename arch/arm/plat-samsung/pm-check.c => drivers/soc/samsung/s3c-pm-check.c (99%) > rename arch/arm/plat-samsung/pm-debug.c => drivers/soc/samsung/s3c-pm-debug.c (97%) > create mode 100644 include/linux/soc/samsung/s3c-pm.h > > diff --git a/arch/arm/mach-s5pv210/Kconfig b/arch/arm/mach-s5pv210/Kconfig > index 03984a791879..d2b0e64bad7e 100644 > --- a/arch/arm/mach-s5pv210/Kconfig > +++ b/arch/arm/mach-s5pv210/Kconfig > @@ -18,6 +18,7 @@ config ARCH_S5PV210 > select HAVE_S3C_RTC if RTC_CLASS > select PINCTRL > select PINCTRL_EXYNOS > + select SOC_SAMSUNG > help > Samsung S5PV210/S5PC110 series based systems > > diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig > index e31a156a27df..740bdb23f38a 100644 > --- a/arch/arm/plat-samsung/Kconfig > +++ b/arch/arm/plat-samsung/Kconfig > @@ -8,6 +8,7 @@ config PLAT_SAMSUNG > default y > select GENERIC_IRQ_CHIP > select NO_IOPORT_MAP > + select SOC_SAMSUNG > help > Base platform code for all Samsung SoC based systems > > @@ -234,54 +235,6 @@ config SAMSUNG_PM_GPIO > pinctrl-samsung driver. > endif > > -comment "Power management" > - > -config SAMSUNG_PM_DEBUG > - bool "Samsung PM Suspend debug" > - depends on PM && DEBUG_KERNEL > - depends on PLAT_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 > - depends on DEBUG_S3C24XX_UART || DEBUG_S3C2410_UART > - help > - Say Y here if you want verbose debugging from the PM Suspend and > - Resume code. See <file:Documentation/arm/samsung-s3c24xx/suspend.rst> > - for more information. > - > -config S3C_PM_DEBUG_LED_SMDK > - bool "SMDK LED suspend/resume debugging" > - depends on PM && (MACH_SMDK6410) > - help > - Say Y here to enable the use of the SMDK LEDs on the baseboard > - for debugging of the state of the suspend and resume process. > - > - Note, this currently only works for S3C64XX based SMDK boards. > - > -config SAMSUNG_PM_CHECK > - bool "S3C2410 PM Suspend Memory CRC" > - depends on PM && (PLAT_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210) > - select CRC32 > - help > - Enable the PM code's memory area checksum over sleep. This option > - will generate CRCs of all blocks of memory, and store them before > - going to sleep. The blocks are then checked on resume for any > - errors. > - > - Note, this can take several seconds depending on memory size > - and CPU speed. > - > - See <file:Documentation/arm/samsung-s3c24xx/suspend.rst> > - > -config SAMSUNG_PM_CHECK_CHUNKSIZE > - int "S3C2410 PM Suspend CRC Chunksize (KiB)" > - depends on PM && SAMSUNG_PM_CHECK > - default 64 > - help > - Set the chunksize in Kilobytes of the CRC for checking memory > - corruption over suspend and resume. A smaller value will mean that > - the CRC data block will take more memory, but will identify any > - faults with better precision. > - > - See <file:Documentation/arm/samsung-s3c24xx/suspend.rst> > - > config SAMSUNG_WAKEMASK > bool > depends on PM > diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile > index 3db9d2c38258..d88b9b84f3a9 100644 > --- a/arch/arm/plat-samsung/Makefile > +++ b/arch/arm/plat-samsung/Makefile > @@ -28,8 +28,6 @@ obj-$(CONFIG_PM_SLEEP) += pm-common.o > obj-$(CONFIG_EXYNOS_CPU_SUSPEND) += pm-common.o > obj-$(CONFIG_SAMSUNG_PM) += pm.o > obj-$(CONFIG_SAMSUNG_PM_GPIO) += pm-gpio.o > -obj-$(CONFIG_SAMSUNG_PM_CHECK) += pm-check.o > -obj-$(CONFIG_SAMSUNG_PM_DEBUG) += pm-debug.o > > obj-$(CONFIG_SAMSUNG_WAKEMASK) += wakeup-mask.o > obj-$(CONFIG_SAMSUNG_WDT_RESET) += watchdog-reset.o > diff --git a/arch/arm/plat-samsung/include/plat/pm-common.h b/arch/arm/plat-samsung/include/plat/pm-common.h > index 87fa97fd6e8b..18b9607e1e39 100644 > --- a/arch/arm/plat-samsung/include/plat/pm-common.h > +++ b/arch/arm/plat-samsung/include/plat/pm-common.h > @@ -11,6 +11,7 @@ > #define __PLAT_SAMSUNG_PM_COMMON_H __FILE__ > > #include <linux/irq.h> > +#include <linux/soc/samsung/s3c-pm.h> > > /* sleep save info */ > > @@ -36,73 +37,4 @@ extern void s3c_pm_do_save(struct sleep_save *ptr, int count); > extern void s3c_pm_do_restore(const struct sleep_save *ptr, int count); > extern void s3c_pm_do_restore_core(const struct sleep_save *ptr, int count); > > -/* PM debug functions */ > - > -/** > - * struct pm_uart_save - save block for core UART > - * @ulcon: Save value for S3C2410_ULCON > - * @ucon: Save value for S3C2410_UCON > - * @ufcon: Save value for S3C2410_UFCON > - * @umcon: Save value for S3C2410_UMCON > - * @ubrdiv: Save value for S3C2410_UBRDIV > - * > - * Save block for UART registers to be held over sleep and restored if they > - * are needed (say by debug). > -*/ > -struct pm_uart_save { > - u32 ulcon; > - u32 ucon; > - u32 ufcon; > - u32 umcon; > - u32 ubrdiv; > - u32 udivslot; > -}; > - > -#ifdef CONFIG_SAMSUNG_PM_DEBUG > -/** > - * s3c_pm_dbg() - low level debug function for use in suspend/resume. > - * @msg: The message to print. > - * > - * This function is used mainly to debug the resume process before the system > - * can rely on printk/console output. It uses the low-level debugging output > - * routine printascii() to do its work. > - */ > -extern void s3c_pm_dbg(const char *msg, ...); > - > -#define S3C_PMDBG(fmt...) s3c_pm_dbg(fmt) > - > -extern void s3c_pm_save_uarts(bool is_s3c24xx); > -extern void s3c_pm_restore_uarts(bool is_s3c24xx); > - > -#ifdef CONFIG_ARCH_S3C64XX > -extern void s3c_pm_arch_update_uart(void __iomem *regs, > - struct pm_uart_save *save); > -#else > -static inline void > -s3c_pm_arch_update_uart(void __iomem *regs, struct pm_uart_save *save) > -{ > -} > -#endif > - > -#else > -#define S3C_PMDBG(fmt...) pr_debug(fmt) > - > -static inline void s3c_pm_save_uarts(bool is_s3c24xx) { } > -static inline void s3c_pm_restore_uarts(bool is_s3c24xx) { } > -#endif > - > -/* suspend memory checking */ > - > -#ifdef CONFIG_SAMSUNG_PM_CHECK > -extern void s3c_pm_check_prepare(void); > -extern void s3c_pm_check_restore(void); > -extern void s3c_pm_check_cleanup(void); > -extern void s3c_pm_check_store(void); > -#else > -#define s3c_pm_check_prepare() do { } while (0) > -#define s3c_pm_check_restore() do { } while (0) > -#define s3c_pm_check_cleanup() do { } while (0) > -#define s3c_pm_check_store() do { } while (0) > -#endif > - > #endif > diff --git a/drivers/soc/samsung/Kconfig b/drivers/soc/samsung/Kconfig > index 33ad0de2de3c..0ea7402ffba3 100644 > --- a/drivers/soc/samsung/Kconfig > +++ b/drivers/soc/samsung/Kconfig > @@ -25,6 +25,52 @@ config EXYNOS_PMU_ARM_DRIVERS > > config EXYNOS_PM_DOMAINS > bool "Exynos PM domains" if COMPILE_TEST > - depends on PM_GENERIC_DOMAINS || COMPILE_TEST > + depends on (ARCH_EXYNOS && PM_GENERIC_DOMAINS) || COMPILE_TEST > + > +config SAMSUNG_PM_DEBUG > + bool "Samsung PM Suspend debug" > + depends on PM && DEBUG_KERNEL > + depends on PLAT_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 > + depends on DEBUG_S3C24XX_UART || DEBUG_S3C2410_UART > + help > + Say Y here if you want verbose debugging from the PM Suspend and > + Resume code. See <file:Documentation/arm/samsung-s3c24xx/suspend.rst> > + for more information. > + > +config S3C_PM_DEBUG_LED_SMDK > + bool "SMDK LED suspend/resume debugging" > + depends on PM && (MACH_SMDK6410) > + help > + Say Y here to enable the use of the SMDK LEDs on the baseboard > + for debugging of the state of the suspend and resume process. > + > + Note, this currently only works for S3C64XX based SMDK boards. > + > +config SAMSUNG_PM_CHECK > + bool "S3C2410 PM Suspend Memory CRC" > + depends on PM && (PLAT_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210) > + select CRC32 > + help > + Enable the PM code's memory area checksum over sleep. This option > + will generate CRCs of all blocks of memory, and store them before > + going to sleep. The blocks are then checked on resume for any > + errors. > + > + Note, this can take several seconds depending on memory size > + and CPU speed. > + > + See <file:Documentation/arm/samsung-s3c24xx/suspend.rst> > + > +config SAMSUNG_PM_CHECK_CHUNKSIZE > + int "S3C2410 PM Suspend CRC Chunksize (KiB)" > + depends on PM && SAMSUNG_PM_CHECK > + default 64 > + help > + Set the chunksize in Kilobytes of the CRC for checking memory > + corruption over suspend and resume. A smaller value will mean that > + the CRC data block will take more memory, but will identify any > + faults with better precision. > + > + See <file:Documentation/arm/samsung-s3c24xx/suspend.rst> > > endif > diff --git a/drivers/soc/samsung/Makefile b/drivers/soc/samsung/Makefile > index 3b6a8797416c..88ae7a522055 100644 > --- a/drivers/soc/samsung/Makefile > +++ b/drivers/soc/samsung/Makefile > @@ -6,3 +6,6 @@ obj-$(CONFIG_EXYNOS_PMU) += exynos-pmu.o > obj-$(CONFIG_EXYNOS_PMU_ARM_DRIVERS) += exynos3250-pmu.o exynos4-pmu.o \ > exynos5250-pmu.o exynos5420-pmu.o > obj-$(CONFIG_EXYNOS_PM_DOMAINS) += pm_domains.o > + > +obj-$(CONFIG_SAMSUNG_PM_CHECK) += s3c-pm-check.o > +obj-$(CONFIG_SAMSUNG_PM_DEBUG) += s3c-pm-debug.o > diff --git a/arch/arm/plat-samsung/pm-check.c b/drivers/soc/samsung/s3c-pm-check.c > similarity index 99% > rename from arch/arm/plat-samsung/pm-check.c > rename to drivers/soc/samsung/s3c-pm-check.c > index cd2c02c68bc3..ff3e099fc208 100644 > --- a/arch/arm/plat-samsung/pm-check.c > +++ b/drivers/soc/samsung/s3c-pm-check.c > @@ -15,7 +15,7 @@ > #include <linux/ioport.h> > #include <linux/slab.h> > > -#include <plat/pm-common.h> > +#include <linux/soc/samsung/s3c-pm.h> > > #if CONFIG_SAMSUNG_PM_CHECK_CHUNKSIZE < 1 > #error CONFIG_SAMSUNG_PM_CHECK_CHUNKSIZE must be a positive non-zero value > diff --git a/arch/arm/plat-samsung/pm-debug.c b/drivers/soc/samsung/s3c-pm-debug.c > similarity index 97% > rename from arch/arm/plat-samsung/pm-debug.c > rename to drivers/soc/samsung/s3c-pm-debug.c > index 482d53753e93..b5ce0e9a41e5 100644 > --- a/arch/arm/plat-samsung/pm-debug.c > +++ b/drivers/soc/samsung/s3c-pm-debug.c > @@ -15,8 +15,7 @@ > > #include <asm/mach/map.h> > > -#include <plat/cpu.h> > -#include <plat/pm-common.h> > +#include <linux/soc/samsung/s3c-pm.h> > > static struct pm_uart_save uart_save; > > diff --git a/include/linux/soc/samsung/s3c-pm.h b/include/linux/soc/samsung/s3c-pm.h > new file mode 100644 > index 000000000000..d477b314d034 > --- /dev/null > +++ b/include/linux/soc/samsung/s3c-pm.h > @@ -0,0 +1,84 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > +/* > + * Copyright (C) 2013 Samsung Electronics Co., Ltd. > + * Tomasz Figa <t.figa@samsung.com> > + * Copyright (c) 2004 Simtec Electronics > + * http://armlinux.simtec.co.uk/ > + * Written by Ben Dooks, <ben@simtec.co.uk> > + */ > + > +#ifndef __SAMSUNG_SOC_S3C_PM_H > +#define __SAMSUNG_SOC_S3C_PM_H __FILE__ Use guard name prefix consistent with other files, so: __LINUX_SOC_SAMSUNG_S3C_PM_H Rest looks good. Best regards, Krzysztof
On Wed, Oct 23, 2019 at 1:33 PM Krzysztof Kozlowski <krzk@kernel.org> wrote: > > On Thu, Oct 10, 2019 at 10:29:53PM +0200, Arnd Bergmann wrote: > > This is the only part of plat-samsung that is really > > shared between the s3c and s5p ports. Moving it to > > drivers/soc/ lets us make them completely independent. > > > > Signed-off-by: Arnd Bergmann <arnd@arndb.de> > > --- > > + * Tomasz Figa <t.figa@samsung.com> > > + * Copyright (c) 2004 Simtec Electronics > > + * http://armlinux.simtec.co.uk/ > > + * Written by Ben Dooks, <ben@simtec.co.uk> > > + */ > > + > > +#ifndef __SAMSUNG_SOC_S3C_PM_H > > +#define __SAMSUNG_SOC_S3C_PM_H __FILE__ > > Use guard name prefix consistent with other files, so: > __LINUX_SOC_SAMSUNG_S3C_PM_H Ok, done. Arnd
diff --git a/arch/arm/mach-s5pv210/Kconfig b/arch/arm/mach-s5pv210/Kconfig index 03984a791879..d2b0e64bad7e 100644 --- a/arch/arm/mach-s5pv210/Kconfig +++ b/arch/arm/mach-s5pv210/Kconfig @@ -18,6 +18,7 @@ config ARCH_S5PV210 select HAVE_S3C_RTC if RTC_CLASS select PINCTRL select PINCTRL_EXYNOS + select SOC_SAMSUNG help Samsung S5PV210/S5PC110 series based systems diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig index e31a156a27df..740bdb23f38a 100644 --- a/arch/arm/plat-samsung/Kconfig +++ b/arch/arm/plat-samsung/Kconfig @@ -8,6 +8,7 @@ config PLAT_SAMSUNG default y select GENERIC_IRQ_CHIP select NO_IOPORT_MAP + select SOC_SAMSUNG help Base platform code for all Samsung SoC based systems @@ -234,54 +235,6 @@ config SAMSUNG_PM_GPIO pinctrl-samsung driver. endif -comment "Power management" - -config SAMSUNG_PM_DEBUG - bool "Samsung PM Suspend debug" - depends on PM && DEBUG_KERNEL - depends on PLAT_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 - depends on DEBUG_S3C24XX_UART || DEBUG_S3C2410_UART - help - Say Y here if you want verbose debugging from the PM Suspend and - Resume code. See <file:Documentation/arm/samsung-s3c24xx/suspend.rst> - for more information. - -config S3C_PM_DEBUG_LED_SMDK - bool "SMDK LED suspend/resume debugging" - depends on PM && (MACH_SMDK6410) - help - Say Y here to enable the use of the SMDK LEDs on the baseboard - for debugging of the state of the suspend and resume process. - - Note, this currently only works for S3C64XX based SMDK boards. - -config SAMSUNG_PM_CHECK - bool "S3C2410 PM Suspend Memory CRC" - depends on PM && (PLAT_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210) - select CRC32 - help - Enable the PM code's memory area checksum over sleep. This option - will generate CRCs of all blocks of memory, and store them before - going to sleep. The blocks are then checked on resume for any - errors. - - Note, this can take several seconds depending on memory size - and CPU speed. - - See <file:Documentation/arm/samsung-s3c24xx/suspend.rst> - -config SAMSUNG_PM_CHECK_CHUNKSIZE - int "S3C2410 PM Suspend CRC Chunksize (KiB)" - depends on PM && SAMSUNG_PM_CHECK - default 64 - help - Set the chunksize in Kilobytes of the CRC for checking memory - corruption over suspend and resume. A smaller value will mean that - the CRC data block will take more memory, but will identify any - faults with better precision. - - See <file:Documentation/arm/samsung-s3c24xx/suspend.rst> - config SAMSUNG_WAKEMASK bool depends on PM diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile index 3db9d2c38258..d88b9b84f3a9 100644 --- a/arch/arm/plat-samsung/Makefile +++ b/arch/arm/plat-samsung/Makefile @@ -28,8 +28,6 @@ obj-$(CONFIG_PM_SLEEP) += pm-common.o obj-$(CONFIG_EXYNOS_CPU_SUSPEND) += pm-common.o obj-$(CONFIG_SAMSUNG_PM) += pm.o obj-$(CONFIG_SAMSUNG_PM_GPIO) += pm-gpio.o -obj-$(CONFIG_SAMSUNG_PM_CHECK) += pm-check.o -obj-$(CONFIG_SAMSUNG_PM_DEBUG) += pm-debug.o obj-$(CONFIG_SAMSUNG_WAKEMASK) += wakeup-mask.o obj-$(CONFIG_SAMSUNG_WDT_RESET) += watchdog-reset.o diff --git a/arch/arm/plat-samsung/include/plat/pm-common.h b/arch/arm/plat-samsung/include/plat/pm-common.h index 87fa97fd6e8b..18b9607e1e39 100644 --- a/arch/arm/plat-samsung/include/plat/pm-common.h +++ b/arch/arm/plat-samsung/include/plat/pm-common.h @@ -11,6 +11,7 @@ #define __PLAT_SAMSUNG_PM_COMMON_H __FILE__ #include <linux/irq.h> +#include <linux/soc/samsung/s3c-pm.h> /* sleep save info */ @@ -36,73 +37,4 @@ extern void s3c_pm_do_save(struct sleep_save *ptr, int count); extern void s3c_pm_do_restore(const struct sleep_save *ptr, int count); extern void s3c_pm_do_restore_core(const struct sleep_save *ptr, int count); -/* PM debug functions */ - -/** - * struct pm_uart_save - save block for core UART - * @ulcon: Save value for S3C2410_ULCON - * @ucon: Save value for S3C2410_UCON - * @ufcon: Save value for S3C2410_UFCON - * @umcon: Save value for S3C2410_UMCON - * @ubrdiv: Save value for S3C2410_UBRDIV - * - * Save block for UART registers to be held over sleep and restored if they - * are needed (say by debug). -*/ -struct pm_uart_save { - u32 ulcon; - u32 ucon; - u32 ufcon; - u32 umcon; - u32 ubrdiv; - u32 udivslot; -}; - -#ifdef CONFIG_SAMSUNG_PM_DEBUG -/** - * s3c_pm_dbg() - low level debug function for use in suspend/resume. - * @msg: The message to print. - * - * This function is used mainly to debug the resume process before the system - * can rely on printk/console output. It uses the low-level debugging output - * routine printascii() to do its work. - */ -extern void s3c_pm_dbg(const char *msg, ...); - -#define S3C_PMDBG(fmt...) s3c_pm_dbg(fmt) - -extern void s3c_pm_save_uarts(bool is_s3c24xx); -extern void s3c_pm_restore_uarts(bool is_s3c24xx); - -#ifdef CONFIG_ARCH_S3C64XX -extern void s3c_pm_arch_update_uart(void __iomem *regs, - struct pm_uart_save *save); -#else -static inline void -s3c_pm_arch_update_uart(void __iomem *regs, struct pm_uart_save *save) -{ -} -#endif - -#else -#define S3C_PMDBG(fmt...) pr_debug(fmt) - -static inline void s3c_pm_save_uarts(bool is_s3c24xx) { } -static inline void s3c_pm_restore_uarts(bool is_s3c24xx) { } -#endif - -/* suspend memory checking */ - -#ifdef CONFIG_SAMSUNG_PM_CHECK -extern void s3c_pm_check_prepare(void); -extern void s3c_pm_check_restore(void); -extern void s3c_pm_check_cleanup(void); -extern void s3c_pm_check_store(void); -#else -#define s3c_pm_check_prepare() do { } while (0) -#define s3c_pm_check_restore() do { } while (0) -#define s3c_pm_check_cleanup() do { } while (0) -#define s3c_pm_check_store() do { } while (0) -#endif - #endif diff --git a/drivers/soc/samsung/Kconfig b/drivers/soc/samsung/Kconfig index 33ad0de2de3c..0ea7402ffba3 100644 --- a/drivers/soc/samsung/Kconfig +++ b/drivers/soc/samsung/Kconfig @@ -25,6 +25,52 @@ config EXYNOS_PMU_ARM_DRIVERS config EXYNOS_PM_DOMAINS bool "Exynos PM domains" if COMPILE_TEST - depends on PM_GENERIC_DOMAINS || COMPILE_TEST + depends on (ARCH_EXYNOS && PM_GENERIC_DOMAINS) || COMPILE_TEST + +config SAMSUNG_PM_DEBUG + bool "Samsung PM Suspend debug" + depends on PM && DEBUG_KERNEL + depends on PLAT_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 + depends on DEBUG_S3C24XX_UART || DEBUG_S3C2410_UART + help + Say Y here if you want verbose debugging from the PM Suspend and + Resume code. See <file:Documentation/arm/samsung-s3c24xx/suspend.rst> + for more information. + +config S3C_PM_DEBUG_LED_SMDK + bool "SMDK LED suspend/resume debugging" + depends on PM && (MACH_SMDK6410) + help + Say Y here to enable the use of the SMDK LEDs on the baseboard + for debugging of the state of the suspend and resume process. + + Note, this currently only works for S3C64XX based SMDK boards. + +config SAMSUNG_PM_CHECK + bool "S3C2410 PM Suspend Memory CRC" + depends on PM && (PLAT_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210) + select CRC32 + help + Enable the PM code's memory area checksum over sleep. This option + will generate CRCs of all blocks of memory, and store them before + going to sleep. The blocks are then checked on resume for any + errors. + + Note, this can take several seconds depending on memory size + and CPU speed. + + See <file:Documentation/arm/samsung-s3c24xx/suspend.rst> + +config SAMSUNG_PM_CHECK_CHUNKSIZE + int "S3C2410 PM Suspend CRC Chunksize (KiB)" + depends on PM && SAMSUNG_PM_CHECK + default 64 + help + Set the chunksize in Kilobytes of the CRC for checking memory + corruption over suspend and resume. A smaller value will mean that + the CRC data block will take more memory, but will identify any + faults with better precision. + + See <file:Documentation/arm/samsung-s3c24xx/suspend.rst> endif diff --git a/drivers/soc/samsung/Makefile b/drivers/soc/samsung/Makefile index 3b6a8797416c..88ae7a522055 100644 --- a/drivers/soc/samsung/Makefile +++ b/drivers/soc/samsung/Makefile @@ -6,3 +6,6 @@ obj-$(CONFIG_EXYNOS_PMU) += exynos-pmu.o obj-$(CONFIG_EXYNOS_PMU_ARM_DRIVERS) += exynos3250-pmu.o exynos4-pmu.o \ exynos5250-pmu.o exynos5420-pmu.o obj-$(CONFIG_EXYNOS_PM_DOMAINS) += pm_domains.o + +obj-$(CONFIG_SAMSUNG_PM_CHECK) += s3c-pm-check.o +obj-$(CONFIG_SAMSUNG_PM_DEBUG) += s3c-pm-debug.o diff --git a/arch/arm/plat-samsung/pm-check.c b/drivers/soc/samsung/s3c-pm-check.c similarity index 99% rename from arch/arm/plat-samsung/pm-check.c rename to drivers/soc/samsung/s3c-pm-check.c index cd2c02c68bc3..ff3e099fc208 100644 --- a/arch/arm/plat-samsung/pm-check.c +++ b/drivers/soc/samsung/s3c-pm-check.c @@ -15,7 +15,7 @@ #include <linux/ioport.h> #include <linux/slab.h> -#include <plat/pm-common.h> +#include <linux/soc/samsung/s3c-pm.h> #if CONFIG_SAMSUNG_PM_CHECK_CHUNKSIZE < 1 #error CONFIG_SAMSUNG_PM_CHECK_CHUNKSIZE must be a positive non-zero value diff --git a/arch/arm/plat-samsung/pm-debug.c b/drivers/soc/samsung/s3c-pm-debug.c similarity index 97% rename from arch/arm/plat-samsung/pm-debug.c rename to drivers/soc/samsung/s3c-pm-debug.c index 482d53753e93..b5ce0e9a41e5 100644 --- a/arch/arm/plat-samsung/pm-debug.c +++ b/drivers/soc/samsung/s3c-pm-debug.c @@ -15,8 +15,7 @@ #include <asm/mach/map.h> -#include <plat/cpu.h> -#include <plat/pm-common.h> +#include <linux/soc/samsung/s3c-pm.h> static struct pm_uart_save uart_save; diff --git a/include/linux/soc/samsung/s3c-pm.h b/include/linux/soc/samsung/s3c-pm.h new file mode 100644 index 000000000000..d477b314d034 --- /dev/null +++ b/include/linux/soc/samsung/s3c-pm.h @@ -0,0 +1,84 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2013 Samsung Electronics Co., Ltd. + * Tomasz Figa <t.figa@samsung.com> + * Copyright (c) 2004 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Written by Ben Dooks, <ben@simtec.co.uk> + */ + +#ifndef __SAMSUNG_SOC_S3C_PM_H +#define __SAMSUNG_SOC_S3C_PM_H __FILE__ + +#include <linux/types.h> + +/* PM debug functions */ + +/** + * struct pm_uart_save - save block for core UART + * @ulcon: Save value for S3C2410_ULCON + * @ucon: Save value for S3C2410_UCON + * @ufcon: Save value for S3C2410_UFCON + * @umcon: Save value for S3C2410_UMCON + * @ubrdiv: Save value for S3C2410_UBRDIV + * + * Save block for UART registers to be held over sleep and restored if they + * are needed (say by debug). +*/ +struct pm_uart_save { + u32 ulcon; + u32 ucon; + u32 ufcon; + u32 umcon; + u32 ubrdiv; + u32 udivslot; +}; + +#ifdef CONFIG_SAMSUNG_PM_DEBUG +/** + * s3c_pm_dbg() - low level debug function for use in suspend/resume. + * @msg: The message to print. + * + * This function is used mainly to debug the resume process before the system + * can rely on printk/console output. It uses the low-level debugging output + * routine printascii() to do its work. + */ +extern void s3c_pm_dbg(const char *msg, ...); + +#define S3C_PMDBG(fmt...) s3c_pm_dbg(fmt) + +extern void s3c_pm_save_uarts(bool is_s3c24xx); +extern void s3c_pm_restore_uarts(bool is_s3c24xx); + +#ifdef CONFIG_ARCH_S3C64XX +extern void s3c_pm_arch_update_uart(void __iomem *regs, + struct pm_uart_save *save); +#else +static inline void +s3c_pm_arch_update_uart(void __iomem *regs, struct pm_uart_save *save) +{ +} +#endif + +#else +#define S3C_PMDBG(fmt...) pr_debug(fmt) + +static inline void s3c_pm_save_uarts(bool is_s3c24xx) { } +static inline void s3c_pm_restore_uarts(bool is_s3c24xx) { } +#endif + +/* suspend memory checking */ + +#ifdef CONFIG_SAMSUNG_PM_CHECK +extern void s3c_pm_check_prepare(void); +extern void s3c_pm_check_restore(void); +extern void s3c_pm_check_cleanup(void); +extern void s3c_pm_check_store(void); +#else +#define s3c_pm_check_prepare() do { } while (0) +#define s3c_pm_check_restore() do { } while (0) +#define s3c_pm_check_cleanup() do { } while (0) +#define s3c_pm_check_store() do { } while (0) +#endif + +#endif
This is the only part of plat-samsung that is really shared between the s3c and s5p ports. Moving it to drivers/soc/ lets us make them completely independent. Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- arch/arm/mach-s5pv210/Kconfig | 1 + arch/arm/plat-samsung/Kconfig | 49 +---------- arch/arm/plat-samsung/Makefile | 2 - .../arm/plat-samsung/include/plat/pm-common.h | 70 +--------------- drivers/soc/samsung/Kconfig | 48 ++++++++++- drivers/soc/samsung/Makefile | 3 + .../soc/samsung/s3c-pm-check.c | 2 +- .../soc/samsung/s3c-pm-debug.c | 3 +- include/linux/soc/samsung/s3c-pm.h | 84 +++++++++++++++++++ 9 files changed, 139 insertions(+), 123 deletions(-) rename arch/arm/plat-samsung/pm-check.c => drivers/soc/samsung/s3c-pm-check.c (99%) rename arch/arm/plat-samsung/pm-debug.c => drivers/soc/samsung/s3c-pm-debug.c (97%) create mode 100644 include/linux/soc/samsung/s3c-pm.h