diff options
author | Stephen Rothwell <sfr@canb.auug.org.au> | 2015-11-13 11:00:20 +1100 |
---|---|---|
committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2015-11-13 11:00:20 +1100 |
commit | 7c59a01b8d359b3b420b2cb61734baf006876d5d (patch) | |
tree | c58777b60eada869b253b02e067878a3718b0b53 | |
parent | 5c33697ae79a16d87d8212397a923a5c2a9b66bd (diff) | |
parent | 53c573ecc2dc7ff8751f7c004a7fe61e40f15cc3 (diff) |
Merge remote-tracking branch 'clockevents/clockevents/next'
-rw-r--r-- | arch/arm/Kconfig | 3 | ||||
-rw-r--r-- | arch/arm/mach-exynos/Kconfig | 1 | ||||
-rw-r--r-- | arch/arm/mach-sti/Kconfig | 1 | ||||
-rw-r--r-- | arch/arm/mach-ux500/Kconfig | 1 | ||||
-rw-r--r-- | arch/h8300/Kconfig | 1 | ||||
-rw-r--r-- | arch/h8300/include/asm/io.h | 39 | ||||
-rw-r--r-- | arch/h8300/kernel/setup.c | 8 | ||||
-rw-r--r-- | drivers/clocksource/Kconfig | 131 | ||||
-rw-r--r-- | drivers/clocksource/Makefile | 2 | ||||
-rw-r--r-- | drivers/clocksource/dw_apb_timer_of.c | 16 | ||||
-rw-r--r-- | drivers/clocksource/h8300_timer16.c | 201 | ||||
-rw-r--r-- | drivers/clocksource/h8300_timer8.c | 243 | ||||
-rw-r--r-- | drivers/clocksource/h8300_tpu.c | 159 | ||||
-rw-r--r-- | drivers/clocksource/mtk_timer.c | 20 | ||||
-rw-r--r-- | drivers/clocksource/rockchip_timer.c | 23 | ||||
-rw-r--r-- | drivers/clocksource/tegra20_timer.c | 3 | ||||
-rw-r--r-- | drivers/clocksource/vt8500_timer.c | 1 | ||||
-rw-r--r-- | drivers/irqchip/irq-renesas-h8300h.c | 8 | ||||
-rw-r--r-- | include/linux/sched_clock.h | 12 |
19 files changed, 390 insertions, 483 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 0365cbbc9179..a5d416ec1d01 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -609,6 +609,7 @@ config ARCH_PXA select AUTO_ZRELADDR select COMMON_CLK select CLKDEV_LOOKUP + select CLKSRC_PXA select CLKSRC_MMIO select CLKSRC_OF select GENERIC_CLOCKEVENTS @@ -648,6 +649,8 @@ config ARCH_SA1100 select ARCH_SPARSEMEM_ENABLE select CLKDEV_LOOKUP select CLKSRC_MMIO + select CLKSRC_PXA + select CLKSRC_OF if OF select CPU_FREQ select CPU_SA1100 select GENERIC_CLOCKEVENTS diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig index 83c85f556f7e..2098e0a3c48b 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -29,6 +29,7 @@ menuconfig ARCH_EXYNOS select SRAM select THERMAL select MFD_SYSCON + select CLKSRC_EXYNOS_MCT help Support for SAMSUNG EXYNOS SoCs (EXYNOS4/5) diff --git a/arch/arm/mach-sti/Kconfig b/arch/arm/mach-sti/Kconfig index 125865daaf17..12dd1dc0a041 100644 --- a/arch/arm/mach-sti/Kconfig +++ b/arch/arm/mach-sti/Kconfig @@ -3,6 +3,7 @@ menuconfig ARCH_STI select ARM_GIC select ST_IRQCHIP select ARM_GLOBAL_TIMER + select CLKSRC_ST_LPC select PINCTRL select PINCTRL_ST select MFD_SYSCON diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig index c9ac19b24e5a..5eacdd61e61c 100644 --- a/arch/arm/mach-ux500/Kconfig +++ b/arch/arm/mach-ux500/Kconfig @@ -32,6 +32,7 @@ config UX500_SOC_DB8500 select PINCTRL_AB8540 select REGULATOR select REGULATOR_DB8500_PRCMU + select CLKSRC_DBX500_PRCMU select PM_GENERIC_DOMAINS if PM config MACH_MOP500 diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig index dd3ac75776ad..2e20333cbce9 100644 --- a/arch/h8300/Kconfig +++ b/arch/h8300/Kconfig @@ -17,6 +17,7 @@ config H8300 select HAVE_MEMBLOCK select HAVE_DMA_ATTRS select CLKSRC_OF + select H8300_TMR8 config RWSEM_GENERIC_SPINLOCK def_bool y diff --git a/arch/h8300/include/asm/io.h b/arch/h8300/include/asm/io.h index bb837cded268..f0e14f3a800d 100644 --- a/arch/h8300/include/asm/io.h +++ b/arch/h8300/include/asm/io.h @@ -3,40 +3,45 @@ #ifdef __KERNEL__ -#include <asm-generic/io.h> - /* H8/300 internal I/O functions */ -static inline unsigned char ctrl_inb(unsigned long addr) + +#define __raw_readb __raw_readb +static inline u8 __raw_readb(const volatile void __iomem *addr) { - return *(volatile unsigned char *)addr; + return *(volatile u8 *)addr; } -static inline unsigned short ctrl_inw(unsigned long addr) +#define __raw_readw __raw_readw +static inline u16 __raw_readw(const volatile void __iomem *addr) { - return *(volatile unsigned short *)addr; + return *(volatile u16 *)addr; } -static inline unsigned long ctrl_inl(unsigned long addr) +#define __raw_readl __raw_readl +static inline u32 __raw_readl(const volatile void __iomem *addr) { - return *(volatile unsigned long *)addr; + return *(volatile u32 *)addr; } -static inline void ctrl_outb(unsigned char b, unsigned long addr) +#define __raw_writeb __raw_writeb +static inline void __raw_writeb(u8 b, const volatile void __iomem *addr) { - *(volatile unsigned char *)addr = b; + *(volatile u8 *)addr = b; } -static inline void ctrl_outw(unsigned short b, unsigned long addr) +#define __raw_writew __raw_writew +static inline void __raw_writew(u16 b, const volatile void __iomem *addr) { - *(volatile unsigned short *)addr = b; + *(volatile u16 *)addr = b; } -static inline void ctrl_outl(unsigned long b, unsigned long addr) +#define __raw_writel __raw_writel +static inline void __raw_writel(u32 b, const volatile void __iomem *addr) { - *(volatile unsigned long *)addr = b; + *(volatile u32 *)addr = b; } -static inline void ctrl_bclr(int b, unsigned char *addr) +static inline void ctrl_bclr(int b, void __iomem *addr) { if (__builtin_constant_p(b)) __asm__("bclr %1,%0" : "+WU"(*addr): "i"(b)); @@ -44,7 +49,7 @@ static inline void ctrl_bclr(int b, unsigned char *addr) __asm__("bclr %w1,%0" : "+WU"(*addr): "r"(b)); } -static inline void ctrl_bset(int b, unsigned char *addr) +static inline void ctrl_bset(int b, void __iomem *addr) { if (__builtin_constant_p(b)) __asm__("bset %1,%0" : "+WU"(*addr): "i"(b)); @@ -52,6 +57,8 @@ static inline void ctrl_bset(int b, unsigned char *addr) __asm__("bset %w1,%0" : "+WU"(*addr): "r"(b)); } +#include <asm-generic/io.h> + #endif /* __KERNEL__ */ #endif /* _H8300_IO_H */ diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c index c772abe6d19c..e4985dfa91dc 100644 --- a/arch/h8300/kernel/setup.c +++ b/arch/h8300/kernel/setup.c @@ -207,14 +207,14 @@ device_initcall(device_probe); #define get_wait(base, addr) ({ \ int baddr; \ baddr = ((addr) / 0x200000 * 2); \ - w *= (ctrl_inw((unsigned long)(base) + 2) & (3 << baddr)) + 1; \ + w *= (readw((base) + 2) & (3 << baddr)) + 1; \ }) #endif #if defined(CONFIG_CPU_H8S) #define get_wait(base, addr) ({ \ int baddr; \ baddr = ((addr) / 0x200000 * 16); \ - w *= (ctrl_inl((unsigned long)(base) + 2) & (7 << baddr)) + 1; \ + w *= (readl((base) + 2) & (7 << baddr)) + 1; \ }) #endif @@ -228,8 +228,8 @@ static __init int access_timing(void) bsc = of_find_compatible_node(NULL, NULL, "renesas,h8300-bsc"); base = of_iomap(bsc, 0); - w = (ctrl_inb((unsigned long)base + 0) & bit)?2:1; - if (ctrl_inb((unsigned long)base + 1) & bit) + w = (readb(base + 0) & bit)?2:1; + if (readb(base + 1) & bit) w *= get_wait(base, addr); else w *= 2; diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig index 71cfdf7c9708..c479f815b99a 100644 --- a/drivers/clocksource/Kconfig +++ b/drivers/clocksource/Kconfig @@ -27,10 +27,16 @@ config CLKSRC_MMIO bool config DIGICOLOR_TIMER - bool + bool "Digicolor timer driver" if COMPILE_TEST + depends on GENERIC_CLOCKEVENTS + help + Enables the support for the digicolor timer driver. config DW_APB_TIMER - bool + bool "DW APB timer driver" if COMPILE_TEST + depends on GENERIC_CLOCKEVENTS + help + Enables the support for the dw_apb timer. config DW_APB_TIMER_OF bool @@ -38,47 +44,77 @@ config DW_APB_TIMER_OF select CLKSRC_OF config ROCKCHIP_TIMER - bool + bool "Rockchip timer driver" if COMPILE_TEST + depends on ARM || ARM64 select CLKSRC_OF + help + Enables the support for the rockchip timer driver. config ARMADA_370_XP_TIMER - bool + bool "Armada 370 and XP timer driver" if COMPILE_TEST + depends on ARM select CLKSRC_OF + help + Enables the support for the Armada 370 and XP timer driver. config MESON6_TIMER - bool + bool "Meson6 timer driver" if COMPILE_TEST + depends on GENERIC_CLOCKEVENTS select CLKSRC_MMIO + help + Enables the support for the Meson6 timer driver. config ORION_TIMER + bool "Orion timer driver" if COMPILE_TEST + depends on ARM select CLKSRC_OF select CLKSRC_MMIO - bool + help + Enables the support for the Orion timer driver config SUN4I_TIMER + bool "Sun4i timer driver" if COMPILE_TEST + depends on GENERIC_CLOCKEVENTS select CLKSRC_MMIO - bool + help + Enables support for the Sun4i timer. config SUN5I_HSTIMER + bool "Sun5i timer driver" if COMPILE_TEST select CLKSRC_MMIO - bool + depends on COMMON_CLK + help + Enables support the Sun5i timer. config TEGRA_TIMER - bool + bool "Tegra timer driver" if COMPILE_TEST + depends on ARM + help + Enables support for the Tegra driver. config VT8500_TIMER - bool + bool "VT8500 timer driver" if COMPILE_TEST + depends on GENERIC_CLOCKEVENTS + help + Enables support for the VT8500 driver. config CADENCE_TTC_TIMER - bool + bool "Cadence TTC timer driver" if COMPILE_TEST + depends on COMMON_CLK + help + Enables support for the cadence ttc driver. config ASM9260_TIMER - bool + bool "ASM9260 timer driver" if COMPILE_TEST + depends on GENERIC_CLOCKEVENTS select CLKSRC_MMIO select CLKSRC_OF + help + Enables support for the ASM9260 timer. config CLKSRC_NOMADIK_MTU - bool - depends on (ARCH_NOMADIK || ARCH_U8500) + bool "Nomakdik clocksource driver" if COMPILE_TEST + depends on ARM select CLKSRC_MMIO help Support for Multi Timer Unit. MTU provides access @@ -92,9 +128,8 @@ config CLKSRC_NOMADIK_MTU_SCHED_CLOCK Use the Multi Timer Unit as the sched_clock. config CLKSRC_DBX500_PRCMU - bool "Clocksource PRCMU Timer" - depends on UX500_SOC_DB8500 - default y + bool "Clocksource PRCMU Timer" if COMPILE_TEST + depends on GENERIC_CLOCKEVENTS help Use the always on PRCMU Timer as clocksource @@ -115,13 +150,18 @@ config CLKSRC_EFM32 event device. config CLKSRC_LPC32XX - bool + bool "Clocksource for LPC32XX" if COMPILE_TEST + depends on GENERIC_CLOCKEVENTS select CLKSRC_MMIO select CLKSRC_OF + help + Support for the LPC32XX clocksource. config CLKSRC_PISTACHIO - bool + bool "Clocksource for Pistachio SoC" if COMPILE_TEST select CLKSRC_OF + help + Enables the clocksource for the Pistachio SoC. config CLKSRC_TI_32K bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST @@ -198,13 +238,14 @@ config CLKSRC_METAG_GENERIC This option enables support for the Meta per-thread timers. config CLKSRC_EXYNOS_MCT - def_bool y if ARCH_EXYNOS - depends on !ARM64 + bool "Exynos multi core timer driver" if COMPILE_TEST + depends on ARM help Support for Multi Core Timer controller on Exynos SoCs. config CLKSRC_SAMSUNG_PWM - bool + bool "PWM timer drvier for Samsung S3C, S5P" if COMPILE_TEST + depends on GENERIC_CLOCKEVENTS help This is a new clocksource driver for the PWM timer found in Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver @@ -212,7 +253,8 @@ config CLKSRC_SAMSUNG_PWM needed only on systems that do not have the Exynos MCT available. config FSL_FTM_TIMER - bool + bool "Freescale FlexTimer Module driver" if COMPILE_TEST + depends on GENERIC_CLOCKEVENTS help Support for Freescale FlexTimer Module (FTM) timer. @@ -225,9 +267,12 @@ config SYS_SUPPORTS_SH_CMT bool config MTK_TIMER + bool "Mediatek timer driver" if COMPILE_TEST + depends on GENERIC_CLOCKEVENTS select CLKSRC_OF select CLKSRC_MMIO - bool + help + Support for Mediatek timer driver. config SYS_SUPPORTS_SH_MTU2 bool @@ -278,7 +323,12 @@ config EM_TIMER_STI such as EMEV2 from former NEC Electronics. config CLKSRC_QCOM - bool + bool "Qualcomm MSM timer" if COMPILE_TEST + depends on ARM + select CLKSRC_OF + help + This enables the clocksource and the per CPU clockevent driver for the + Qualcomm SoCs. config CLKSRC_VERSATILE bool "ARM Versatile (Express) reference platforms clock source" @@ -297,21 +347,39 @@ config CLKSRC_MIPS_GIC select CLKSRC_OF config CLKSRC_TANGO_XTAL - bool + bool "Clocksource for Tango SoC" if COMPILE_TEST + depends on ARM select CLKSRC_OF + help + This enables the clocksource for Tango SoC config CLKSRC_PXA - def_bool y if ARCH_PXA || ARCH_SA1100 - select CLKSRC_OF if OF + bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST + depends on GENERIC_CLOCKEVENTS + select CLKSRC_MMIO help This enables OST0 support available on PXA and SA-11x0 platforms. +config H8300_TMR8 + bool "Clockevent timer for the H8300 platform" if COMPILE_TEST + depends on GENERIC_CLOCKEVENTS + help + This enables the 8 bits timer for the H8300 platform. + config H8300_TMR16 - bool + bool "Clockevent timer for the H83069 platform" if COMPILE_TEST + depends on GENERIC_CLOCKEVENTS + help + This enables the 16 bits timer for the H8300 platform with the + H83069 cpu. config H8300_TPU - bool + bool "Clocksource for the H8300 platform" if COMPILE_TEST + depends on GENERIC_CLOCKEVENTS + help + This enables the clocksource for the H8300 platform with the + H8S2678 cpu. config CLKSRC_IMX_GPT bool "Clocksource using i.MX GPT" if COMPILE_TEST @@ -319,8 +387,7 @@ config CLKSRC_IMX_GPT select CLKSRC_MMIO config CLKSRC_ST_LPC - bool - depends on ARCH_STI + bool "Low power clocksource found in the LPC" if COMPILE_TEST select CLKSRC_OF if OF help Enable this option to use the Low Power controller timer diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile index 56bd16e77ae3..dc2b8997f6e6 100644 --- a/drivers/clocksource/Makefile +++ b/drivers/clocksource/Makefile @@ -60,7 +60,7 @@ obj-$(CONFIG_CLKSRC_MIPS_GIC) += mips-gic-timer.o obj-$(CONFIG_CLKSRC_TANGO_XTAL) += tango_xtal.o obj-$(CONFIG_CLKSRC_IMX_GPT) += timer-imx-gpt.o obj-$(CONFIG_ASM9260_TIMER) += asm9260_timer.o -obj-$(CONFIG_H8300) += h8300_timer8.o +obj-$(CONFIG_H8300_TMR8) += h8300_timer8.o obj-$(CONFIG_H8300_TMR16) += h8300_timer16.o obj-$(CONFIG_H8300_TPU) += h8300_tpu.o obj-$(CONFIG_CLKSRC_ST_LPC) += clksrc_st_lpc.o diff --git a/drivers/clocksource/dw_apb_timer_of.c b/drivers/clocksource/dw_apb_timer_of.c index a19a3f619cc7..860843cef572 100644 --- a/drivers/clocksource/dw_apb_timer_of.c +++ b/drivers/clocksource/dw_apb_timer_of.c @@ -16,6 +16,7 @@ * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ +#include <linux/delay.h> #include <linux/dw_apb_timer.h> #include <linux/of.h> #include <linux/of_address.h> @@ -130,6 +131,17 @@ static void __init init_sched_clock(void) sched_clock_register(read_sched_clock, 32, sched_rate); } +#ifdef CONFIG_ARM +static unsigned long dw_apb_delay_timer_read(void) +{ + return ~readl_relaxed(sched_io_base); +} + +static struct delay_timer dw_apb_delay_timer = { + .read_current_timer = dw_apb_delay_timer_read, +}; +#endif + static int num_called; static void __init dw_apb_timer_init(struct device_node *timer) { @@ -142,6 +154,10 @@ static void __init dw_apb_timer_init(struct device_node *timer) pr_debug("%s: found clocksource timer\n", __func__); add_clocksource(timer); init_sched_clock(); +#ifdef CONFIG_ARM + dw_apb_delay_timer.freq = sched_rate; + register_current_timer_delay(&dw_apb_delay_timer); +#endif break; default: break; diff --git a/drivers/clocksource/h8300_timer16.c b/drivers/clocksource/h8300_timer16.c index 0e076c6fc006..fc14a3f741bf 100644 --- a/drivers/clocksource/h8300_timer16.c +++ b/drivers/clocksource/h8300_timer16.c @@ -4,63 +4,32 @@ * Copyright 2015 Yoshinori Sato <ysato@users.sourcefoge.jp> */ -#include <linux/errno.h> -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/string.h> -#include <linux/slab.h> #include <linux/interrupt.h> #include <linux/init.h> -#include <linux/platform_device.h> #include <linux/clocksource.h> -#include <linux/module.h> #include <linux/clk.h> #include <linux/io.h> #include <linux/of.h> - -#include <asm/segment.h> -#include <asm/irq.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> #define TSTR 0 -#define TSNC 1 -#define TMDR 2 -#define TOLR 3 #define TISRA 4 -#define TISRB 5 #define TISRC 6 #define TCR 0 -#define TIOR 1 #define TCNT 2 -#define GRA 4 -#define GRB 6 - -#define FLAG_REPROGRAM (1 << 0) -#define FLAG_SKIPEVENT (1 << 1) -#define FLAG_IRQCONTEXT (1 << 2) -#define FLAG_STARTED (1 << 3) - -#define ONESHOT 0 -#define PERIODIC 1 - -#define RELATIVE 0 -#define ABSOLUTE 1 struct timer16_priv { - struct platform_device *pdev; struct clocksource cs; - struct irqaction irqaction; unsigned long total_cycles; - unsigned long mapbase; - unsigned long mapcommon; - unsigned long flags; - unsigned short gra; + void __iomem *mapbase; + void __iomem *mapcommon; unsigned short cs_enabled; unsigned char enb; unsigned char imfa; unsigned char imiea; unsigned char ovf; - raw_spinlock_t lock; struct clk *clk; }; @@ -69,15 +38,15 @@ static unsigned long timer16_get_counter(struct timer16_priv *p) unsigned long v1, v2, v3; int o1, o2; - o1 = ctrl_inb(p->mapcommon + TISRC) & p->ovf; + o1 = readb(p->mapcommon + TISRC) & p->ovf; /* Make sure the timer value is stable. Stolen from acpi_pm.c */ do { o2 = o1; - v1 = ctrl_inw(p->mapbase + TCNT); - v2 = ctrl_inw(p->mapbase + TCNT); - v3 = ctrl_inw(p->mapbase + TCNT); - o1 = ctrl_inb(p->mapcommon + TISRC) & p->ovf; + v1 = readw(p->mapbase + TCNT); + v2 = readw(p->mapbase + TCNT); + v3 = readw(p->mapbase + TCNT); + o1 = readb(p->mapcommon + TISRC) & p->ovf; } while (unlikely((o1 != o2) || (v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1) || (v3 > v1 && v3 < v2))); @@ -90,7 +59,7 @@ static irqreturn_t timer16_interrupt(int irq, void *dev_id) { struct timer16_priv *p = (struct timer16_priv *)dev_id; - ctrl_outb(ctrl_inb(p->mapcommon + TISRA) & ~p->imfa, + writeb(readb(p->mapcommon + TISRA) & ~p->imfa, p->mapcommon + TISRA); p->total_cycles += 0x10000; @@ -105,13 +74,10 @@ static inline struct timer16_priv *cs_to_priv(struct clocksource *cs) static cycle_t timer16_clocksource_read(struct clocksource *cs) { struct timer16_priv *p = cs_to_priv(cs); - unsigned long flags, raw; - unsigned long value; + unsigned long raw, value; - raw_spin_lock_irqsave(&p->lock, flags); value = p->total_cycles; raw = timer16_get_counter(p); - raw_spin_unlock_irqrestore(&p->lock, flags); return value + raw; } @@ -123,9 +89,9 @@ static int timer16_enable(struct clocksource *cs) WARN_ON(p->cs_enabled); p->total_cycles = 0; - ctrl_outw(0x0000, p->mapbase + TCNT); - ctrl_outb(0x83, p->mapbase + TCR); - ctrl_outb(ctrl_inb(p->mapcommon + TSTR) | p->enb, + writew(0x0000, p->mapbase + TCNT); + writeb(0x83, p->mapbase + TCR); + writeb(readb(p->mapcommon + TSTR) | p->enb, p->mapcommon + TSTR); p->cs_enabled = true; @@ -138,116 +104,83 @@ static void timer16_disable(struct clocksource *cs) WARN_ON(!p->cs_enabled); - ctrl_outb(ctrl_inb(p->mapcommon + TSTR) & ~p->enb, + writeb(readb(p->mapcommon + TSTR) & ~p->enb, p->mapcommon + TSTR); p->cs_enabled = false; } +static struct timer16_priv timer16_priv = { + .cs = { + .name = "h8300_16timer", + .rating = 200, + .read = timer16_clocksource_read, + .enable = timer16_enable, + .disable = timer16_disable, + .mask = CLOCKSOURCE_MASK(sizeof(unsigned long) * 8), + .flags = CLOCK_SOURCE_IS_CONTINUOUS, + }, +}; + #define REG_CH 0 #define REG_COMM 1 -static int timer16_setup(struct timer16_priv *p, struct platform_device *pdev) +static void __init h8300_16timer_init(struct device_node *node) { - struct resource *res[2]; + void __iomem *base[2]; int ret, irq; unsigned int ch; + struct clk *clk; - p->pdev = pdev; - - res[REG_CH] = platform_get_resource(p->pdev, - IORESOURCE_MEM, REG_CH); - res[REG_COMM] = platform_get_resource(p->pdev, - IORESOURCE_MEM, REG_COMM); - if (!res[REG_CH] || !res[REG_COMM]) { - dev_err(&p->pdev->dev, "failed to get I/O memory\n"); - return -ENXIO; - } - irq = platform_get_irq(p->pdev, 0); - if (irq < 0) { - dev_err(&p->pdev->dev, "failed to get irq\n"); - return irq; + clk = of_clk_get(node, 0); + if (IS_ERR(clk)) { + pr_err("failed to get clock for clocksource\n"); + return; } - p->clk = clk_get(&p->pdev->dev, "fck"); - if (IS_ERR(p->clk)) { - dev_err(&p->pdev->dev, "can't get clk\n"); - return PTR_ERR(p->clk); + base[REG_CH] = of_iomap(node, 0); + if (!base[REG_CH]) { + pr_err("failed to map registers for clocksource\n"); + goto free_clk; } - of_property_read_u32(p->pdev->dev.of_node, "renesas,channel", &ch); - - p->pdev = pdev; - p->mapbase = res[REG_CH]->start; - p->mapcommon = res[REG_COMM]->start; - p->enb = 1 << ch; - p->imfa = 1 << ch; - p->imiea = 1 << (4 + ch); - p->cs.name = pdev->name; - p->cs.rating = 200; - p->cs.read = timer16_clocksource_read; - p->cs.enable = timer16_enable; - p->cs.disable = timer16_disable; - p->cs.mask = CLOCKSOURCE_MASK(sizeof(unsigned long) * 8); - p->cs.flags = CLOCK_SOURCE_IS_CONTINUOUS; - ret = request_irq(irq, timer16_interrupt, - IRQF_TIMER, pdev->name, p); - if (ret < 0) { - dev_err(&p->pdev->dev, "failed to request irq %d\n", irq); - return ret; + base[REG_COMM] = of_iomap(node, 1); + if (!base[REG_COMM]) { + pr_err("failed to map registers for clocksource\n"); + goto unmap_ch; } - clocksource_register_hz(&p->cs, clk_get_rate(p->clk) / 8); - - return 0; -} - -static int timer16_probe(struct platform_device *pdev) -{ - struct timer16_priv *p = platform_get_drvdata(pdev); - - if (p) { - dev_info(&pdev->dev, "kept as earlytimer\n"); - return 0; + irq = irq_of_parse_and_map(node, 0); + if (!irq) { + pr_err("failed to get irq for clockevent\n"); + goto unmap_comm; } - p = devm_kzalloc(&pdev->dev, sizeof(*p), GFP_KERNEL); - if (!p) - return -ENOMEM; + of_property_read_u32(node, "renesas,channel", &ch); - return timer16_setup(p, pdev); -} - -static int timer16_remove(struct platform_device *pdev) -{ - return -EBUSY; -} + timer16_priv.mapbase = base[REG_CH]; + timer16_priv.mapcommon = base[REG_COMM]; + timer16_priv.enb = 1 << ch; + timer16_priv.imfa = 1 << ch; + timer16_priv.imiea = 1 << (4 + ch); -static const struct of_device_id timer16_of_table[] = { - { .compatible = "renesas,16bit-timer" }, - { } -}; -static struct platform_driver timer16_driver = { - .probe = timer16_probe, - .remove = timer16_remove, - .driver = { - .name = "h8300h-16timer", - .of_match_table = of_match_ptr(timer16_of_table), + ret = request_irq(irq, timer16_interrupt, + IRQF_TIMER, timer16_priv.cs.name, &timer16_priv); + if (ret < 0) { + pr_err("failed to request irq %d of clocksource\n", irq); + goto unmap_comm; } -}; -static int __init timer16_init(void) -{ - return platform_driver_register(&timer16_driver); -} + clocksource_register_hz(&timer16_priv.cs, + clk_get_rate(timer16_priv.clk) / 8); + return; -static void __exit timer16_exit(void) -{ - platform_driver_unregister(&timer16_driver); +unmap_comm: + iounmap(base[REG_COMM]); +unmap_ch: + iounmap(base[REG_CH]); +free_clk: + clk_put(clk); } -subsys_initcall(timer16_init); -module_exit(timer16_exit); -MODULE_AUTHOR("Yoshinori Sato"); -MODULE_DESCRIPTION("H8/300H 16bit Timer Driver"); -MODULE_LICENSE("GPL v2"); +CLOCKSOURCE_OF_DECLARE(h8300_16bit, "renesas,16bit-timer", h8300_16timer_init); diff --git a/drivers/clocksource/h8300_timer8.c b/drivers/clocksource/h8300_timer8.c index 44375d8b9bc4..aa4b2a989747 100644 --- a/drivers/clocksource/h8300_timer8.c +++ b/drivers/clocksource/h8300_timer8.c @@ -8,19 +8,15 @@ */ #include <linux/errno.h> -#include <linux/sched.h> #include <linux/kernel.h> #include <linux/interrupt.h> #include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/slab.h> #include <linux/clockchips.h> -#include <linux/module.h> #include <linux/clk.h> #include <linux/io.h> #include <linux/of.h> - -#include <asm/irq.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> #define _8TCR 0 #define _8TCSR 2 @@ -28,27 +24,16 @@ #define TCORB 6 #define _8TCNT 8 -#define FLAG_REPROGRAM (1 << 0) -#define FLAG_SKIPEVENT (1 << 1) -#define FLAG_IRQCONTEXT (1 << 2) #define FLAG_STARTED (1 << 3) -#define ONESHOT 0 -#define PERIODIC 1 - -#define RELATIVE 0 -#define ABSOLUTE 1 +#define SCALE 64 struct timer8_priv { - struct platform_device *pdev; struct clock_event_device ced; - struct irqaction irqaction; - unsigned long mapbase; - raw_spinlock_t lock; + void __iomem *mapbase; unsigned long flags; unsigned int rate; unsigned int tcora; - struct clk *pclk; }; static unsigned long timer8_get_counter(struct timer8_priv *p) @@ -56,15 +41,15 @@ static unsigned long timer8_get_counter(struct timer8_priv *p) unsigned long v1, v2, v3; int o1, o2; - o1 = ctrl_inb(p->mapbase + _8TCSR) & 0x20; + o1 = readb(p->mapbase + _8TCSR) & 0x20; /* Make sure the timer value is stable. Stolen from acpi_pm.c */ do { o2 = o1; - v1 = ctrl_inw(p->mapbase + _8TCNT); - v2 = ctrl_inw(p->mapbase + _8TCNT); - v3 = ctrl_inw(p->mapbase + _8TCNT); - o1 = ctrl_inb(p->mapbase + _8TCSR) & 0x20; + v1 = readw(p->mapbase + _8TCNT); + v2 = readw(p->mapbase + _8TCNT); + v3 = readw(p->mapbase + _8TCNT); + o1 = readb(p->mapbase + _8TCSR) & 0x20; } while (unlikely((o1 != o2) || (v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1) || (v3 > v1 && v3 < v2))); @@ -76,78 +61,60 @@ static irqreturn_t timer8_interrupt(int irq, void *dev_id) { struct timer8_priv *p = dev_id; - ctrl_outb(ctrl_inb(p->mapbase + _8TCSR) & ~0x40, + writeb(readb(p->mapbase + _8TCSR) & ~0x40, p->mapbase + _8TCSR); - p->flags |= FLAG_IRQCONTEXT; - ctrl_outw(p->tcora, p->mapbase + TCORA); - if (!(p->flags & FLAG_SKIPEVENT)) { - if (clockevent_state_oneshot(&p->ced)) - ctrl_outw(0x0000, p->mapbase + _8TCR); - p->ced.event_handler(&p->ced); - } - p->flags &= ~(FLAG_SKIPEVENT | FLAG_IRQCONTEXT); + + writew(p->tcora, p->mapbase + TCORA); + + if (clockevent_state_oneshot(&p->ced)) + writew(0x0000, p->mapbase + _8TCR); + + p->ced.event_handler(&p->ced); return IRQ_HANDLED; } static void timer8_set_next(struct timer8_priv *p, unsigned long delta) { - unsigned long flags; unsigned long now; - raw_spin_lock_irqsave(&p->lock, flags); if (delta >= 0x10000) - dev_warn(&p->pdev->dev, "delta out of range\n"); + pr_warn("delta out of range\n"); now = timer8_get_counter(p); p->tcora = delta; - ctrl_outb(ctrl_inb(p->mapbase + _8TCR) | 0x40, p->mapbase + _8TCR); + writeb(readb(p->mapbase + _8TCR) | 0x40, p->mapbase + _8TCR); if (delta > now) - ctrl_outw(delta, p->mapbase + TCORA); + writew(delta, p->mapbase + TCORA); else - ctrl_outw(now + 1, p->mapbase + TCORA); - - raw_spin_unlock_irqrestore(&p->lock, flags); + writew(now + 1, p->mapbase + TCORA); } static int timer8_enable(struct timer8_priv *p) { - p->rate = clk_get_rate(p->pclk) / 64; - ctrl_outw(0xffff, p->mapbase + TCORA); - ctrl_outw(0x0000, p->mapbase + _8TCNT); - ctrl_outw(0x0c02, p->mapbase + _8TCR); + writew(0xffff, p->mapbase + TCORA); + writew(0x0000, p->mapbase + _8TCNT); + writew(0x0c02, p->mapbase + _8TCR); return 0; } static int timer8_start(struct timer8_priv *p) { - int ret = 0; - unsigned long flags; - - raw_spin_lock_irqsave(&p->lock, flags); - - if (!(p->flags & FLAG_STARTED)) - ret = timer8_enable(p); + int ret; - if (ret) - goto out; - p->flags |= FLAG_STARTED; + if ((p->flags & FLAG_STARTED)) + return 0; - out: - raw_spin_unlock_irqrestore(&p->lock, flags); + ret = timer8_enable(p); + if (!ret) + p->flags |= FLAG_STARTED; return ret; } static void timer8_stop(struct timer8_priv *p) { - unsigned long flags; - - raw_spin_lock_irqsave(&p->lock, flags); - - ctrl_outw(0x0000, p->mapbase + _8TCR); - - raw_spin_unlock_irqrestore(&p->lock, flags); + writew(0x0000, p->mapbase + _8TCR); } static inline struct timer8_priv *ced_to_priv(struct clock_event_device *ced) @@ -155,7 +122,7 @@ static inline struct timer8_priv *ced_to_priv(struct clock_event_device *ced) return container_of(ced, struct timer8_priv, ced); } -static void timer8_clock_event_start(struct timer8_priv *p, int periodic) +static void timer8_clock_event_start(struct timer8_priv *p, unsigned long delta) { struct clock_event_device *ced = &p->ced; @@ -166,7 +133,7 @@ static void timer8_clock_event_start(struct timer8_priv *p, int periodic) ced->max_delta_ns = clockevent_delta2ns(0xffff, ced); ced->min_delta_ns = clockevent_delta2ns(0x0001, ced); - timer8_set_next(p, periodic?(p->rate + HZ/2) / HZ:0x10000); + timer8_set_next(p, delta); } static int timer8_clock_event_shutdown(struct clock_event_device *ced) @@ -179,9 +146,9 @@ static int timer8_clock_event_periodic(struct clock_event_device *ced) { struct timer8_priv *p = ced_to_priv(ced); - dev_info(&p->pdev->dev, "used for periodic clock events\n"); + pr_info("%s: used for periodic clock events\n", ced->name); timer8_stop(p); - timer8_clock_event_start(p, PERIODIC); + timer8_clock_event_start(p, (p->rate + HZ/2) / HZ); return 0; } @@ -190,9 +157,9 @@ static int timer8_clock_event_oneshot(struct clock_event_device *ced) { struct timer8_priv *p = ced_to_priv(ced); - dev_info(&p->pdev->dev, "used for oneshot clock events\n"); + pr_info("%s: used for oneshot clock events\n", ced->name); timer8_stop(p); - timer8_clock_event_start(p, ONESHOT); + timer8_clock_event_start(p, 0x10000); return 0; } @@ -208,110 +175,66 @@ static int timer8_clock_event_next(unsigned long delta, return 0; } -static int timer8_setup(struct timer8_priv *p, - struct platform_device *pdev) +static struct timer8_priv timer8_priv = { + .ced = { + .name = "h8300_8timer", + .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, + .rating = 200, + .set_next_event = timer8_clock_event_next, + .set_state_shutdown = timer8_clock_event_shutdown, + .set_state_periodic = timer8_clock_event_periodic, + .set_state_oneshot = timer8_clock_event_oneshot, + }, +}; + +static void __init h8300_8timer_init(struct device_node *node) { - struct resource *res; + void __iomem *base; int irq; - int ret; - - p->pdev = pdev; - - res = platform_get_resource(p->pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&p->pdev->dev, "failed to get I/O memory\n"); - return -ENXIO; - } + int ret = 0; + int rate; + struct clk *clk; - irq = platform_get_irq(p->pdev, 0); - if (irq < 0) { - dev_err(&p->pdev->dev, "failed to get irq\n"); - return -ENXIO; + clk = of_clk_get(node, 0); + if (IS_ERR(clk)) { + pr_err("failed to get clock for clockevent\n"); + return; } - p->mapbase = res->start; - - p->irqaction.name = dev_name(&p->pdev->dev); - p->irqaction.handler = timer8_interrupt; - p->irqaction.dev_id = p; - p->irqaction.flags = IRQF_TIMER; - - p->pclk = clk_get(&p->pdev->dev, "fck"); - if (IS_ERR(p->pclk)) { - dev_err(&p->pdev->dev, "can't get clk\n"); - return PTR_ERR(p->pclk); + base = of_iomap(node, 0); + if (!base) { + pr_err("failed to map registers for clockevent\n"); + goto free_clk; } - p->ced.name = pdev->name; - p->ced.features = CLOCK_EVT_FEAT_PERIODIC | - CLOCK_EVT_FEAT_ONESHOT; - p->ced.rating = 200; - p->ced.cpumask = cpumask_of(0); - p->ced.set_next_event = timer8_clock_event_next; - p->ced.set_state_shutdown = timer8_clock_event_shutdown; - p->ced.set_state_periodic = timer8_clock_event_periodic; - p->ced.set_state_oneshot = timer8_clock_event_oneshot; - - ret = setup_irq(irq, &p->irqaction); - if (ret < 0) { - dev_err(&p->pdev->dev, - "failed to request irq %d\n", irq); - return ret; + irq = irq_of_parse_and_map(node, 0); + if (!irq) { + pr_err("failed to get irq for clockevent\n"); + goto unmap_reg; } - clockevents_register_device(&p->ced); - platform_set_drvdata(pdev, p); - - return 0; -} -static int timer8_probe(struct platform_device *pdev) -{ - struct timer8_priv *p = platform_get_drvdata(pdev); + timer8_priv.mapbase = base; - if (p) { - dev_info(&pdev->dev, "kept as earlytimer\n"); - return 0; + rate = clk_get_rate(clk) / SCALE; + if (!rate) { + pr_err("Failed to get rate for the clocksource\n"); + goto unmap_reg; } - p = devm_kzalloc(&pdev->dev, sizeof(*p), GFP_KERNEL); - if (!p) - return -ENOMEM; - - return timer8_setup(p, pdev); -} - -static int timer8_remove(struct platform_device *pdev) -{ - return -EBUSY; -} - -static const struct of_device_id timer8_of_table[] __maybe_unused = { - { .compatible = "renesas,8bit-timer" }, - { } -}; - -MODULE_DEVICE_TABLE(of, timer8_of_table); -static struct platform_driver timer8_driver = { - .probe = timer8_probe, - .remove = timer8_remove, - .driver = { - .name = "h8300-8timer", - .of_match_table = of_match_ptr(timer8_of_table), + ret = request_irq(irq, timer8_interrupt, + IRQF_TIMER, timer8_priv.ced.name, &timer8_priv); + if (ret < 0) { + pr_err("failed to request irq %d for clockevent\n", irq); + goto unmap_reg; } -}; -static int __init timer8_init(void) -{ - return platform_driver_register(&timer8_driver); -} + clockevents_config_and_register(&timer8_priv.ced, rate, 1, 0x0000ffff); -static void __exit timer8_exit(void) -{ - platform_driver_unregister(&timer8_driver); + return; +unmap_reg: + iounmap(base); +free_clk: + clk_put(clk); } -subsys_initcall(timer8_init); -module_exit(timer8_exit); -MODULE_AUTHOR("Yoshinori Sato"); -MODULE_DESCRIPTION("H8/300 8bit Timer Driver"); -MODULE_LICENSE("GPL v2"); +CLOCKSOURCE_OF_DECLARE(h8300_8bit, "renesas,8bit-timer", h8300_8timer_init); diff --git a/drivers/clocksource/h8300_tpu.c b/drivers/clocksource/h8300_tpu.c index 5487410bfabb..91bf1992320e 100644 --- a/drivers/clocksource/h8300_tpu.c +++ b/drivers/clocksource/h8300_tpu.c @@ -1,42 +1,28 @@ /* - * H8/300 TPU Driver + * H8S TPU Driver * * Copyright 2015 Yoshinori Sato <ysato@users.sourcefoge.jp> * */ #include <linux/errno.h> -#include <linux/sched.h> #include <linux/kernel.h> -#include <linux/interrupt.h> #include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/slab.h> #include <linux/clocksource.h> -#include <linux/module.h> #include <linux/clk.h> #include <linux/io.h> #include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> -#include <asm/irq.h> - -#define TCR 0 -#define TMDR 1 -#define TIOR 2 -#define TER 4 -#define TSR 5 -#define TCNT 6 -#define TGRA 8 -#define TGRB 10 -#define TGRC 12 -#define TGRD 14 +#define TCR 0x0 +#define TSR 0x5 +#define TCNT 0x6 struct tpu_priv { - struct platform_device *pdev; struct clocksource cs; - struct clk *clk; - unsigned long mapbase1; - unsigned long mapbase2; + void __iomem *mapbase1; + void __iomem *mapbase2; raw_spinlock_t lock; unsigned int cs_enabled; }; @@ -45,8 +31,8 @@ static inline unsigned long read_tcnt32(struct tpu_priv *p) { unsigned long tcnt; - tcnt = ctrl_inw(p->mapbase1 + TCNT) << 16; - tcnt |= ctrl_inw(p->mapbase2 + TCNT); + tcnt = readw(p->mapbase1 + TCNT) << 16; + tcnt |= readw(p->mapbase2 + TCNT); return tcnt; } @@ -55,7 +41,7 @@ static int tpu_get_counter(struct tpu_priv *p, unsigned long long *val) unsigned long v1, v2, v3; int o1, o2; - o1 = ctrl_inb(p->mapbase1 + TSR) & 0x10; + o1 = readb(p->mapbase1 + TSR) & 0x10; /* Make sure the timer value is stable. Stolen from acpi_pm.c */ do { @@ -63,7 +49,7 @@ static int tpu_get_counter(struct tpu_priv *p, unsigned long long *val) v1 = read_tcnt32(p); v2 = read_tcnt32(p); v3 = read_tcnt32(p); - o1 = ctrl_inb(p->mapbase1 + TSR) & 0x10; + o1 = readb(p->mapbase1 + TSR) & 0x10; } while (unlikely((o1 != o2) || (v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1) || (v3 > v1 && v3 < v2))); @@ -96,10 +82,10 @@ static int tpu_clocksource_enable(struct clocksource *cs) WARN_ON(p->cs_enabled); - ctrl_outw(0, p->mapbase1 + TCNT); - ctrl_outw(0, p->mapbase2 + TCNT); - ctrl_outb(0x0f, p->mapbase1 + TCR); - ctrl_outb(0x03, p->mapbase2 + TCR); + writew(0, p->mapbase1 + TCNT); + writew(0, p->mapbase2 + TCNT); + writeb(0x0f, p->mapbase1 + TCR); + writeb(0x03, p->mapbase2 + TCR); p->cs_enabled = true; return 0; @@ -111,96 +97,59 @@ static void tpu_clocksource_disable(struct clocksource *cs) WARN_ON(!p->cs_enabled); - ctrl_outb(0, p->mapbase1 + TCR); - ctrl_outb(0, p->mapbase2 + TCR); + writeb(0, p->mapbase1 + TCR); + writeb(0, p->mapbase2 + TCR); p->cs_enabled = false; } +static struct tpu_priv tpu_priv = { + .cs = { + .name = "H8S_TPU", + .rating = 200, + .read = tpu_clocksource_read, + .enable = tpu_clocksource_enable, + .disable = tpu_clocksource_disable, + .mask = CLOCKSOURCE_MASK(sizeof(unsigned long) * 8), + .flags = CLOCK_SOURCE_IS_CONTINUOUS, + }, +}; + #define CH_L 0 #define CH_H 1 -static int __init tpu_setup(struct tpu_priv *p, struct platform_device *pdev) +static void __init h8300_tpu_init(struct device_node *node) { - struct resource *res[2]; - - p->pdev = pdev; + void __iomem *base[2]; + struct clk *clk; - res[CH_L] = platform_get_resource(p->pdev, IORESOURCE_MEM, CH_L); - res[CH_H] = platform_get_resource(p->pdev, IORESOURCE_MEM, CH_H); - if (!res[CH_L] || !res[CH_H]) { - dev_err(&p->pdev->dev, "failed to get I/O memory\n"); - return -ENXIO; + clk = of_clk_get(node, 0); + if (IS_ERR(clk)) { + pr_err("failed to get clock for clocksource\n"); + return; } - p->clk = clk_get(&p->pdev->dev, "fck"); - if (IS_ERR(p->clk)) { - dev_err(&p->pdev->dev, "can't get clk\n"); - return PTR_ERR(p->clk); + base[CH_L] = of_iomap(node, CH_L); + if (!base[CH_L]) { + pr_err("failed to map registers for clocksource\n"); + goto free_clk; } - - p->mapbase1 = res[CH_L]->start; - p->mapbase2 = res[CH_H]->start; - - p->cs.name = pdev->name; - p->cs.rating = 200; - p->cs.read = tpu_clocksource_read; - p->cs.enable = tpu_clocksource_enable; - p->cs.disable = tpu_clocksource_disable; - p->cs.mask = CLOCKSOURCE_MASK(sizeof(unsigned long) * 8); - p->cs.flags = CLOCK_SOURCE_IS_CONTINUOUS; - clocksource_register_hz(&p->cs, clk_get_rate(p->clk) / 64); - platform_set_drvdata(pdev, p); - - return 0; -} - -static int tpu_probe(struct platform_device *pdev) -{ - struct tpu_priv *p = platform_get_drvdata(pdev); - - if (p) { - dev_info(&pdev->dev, "kept as earlytimer\n"); - return 0; + base[CH_H] = of_iomap(node, CH_H); + if (!base[CH_H]) { + pr_err("failed to map registers for clocksource\n"); + goto unmap_L; } - p = devm_kzalloc(&pdev->dev, sizeof(*p), GFP_KERNEL); - if (!p) - return -ENOMEM; + tpu_priv.mapbase1 = base[CH_L]; + tpu_priv.mapbase2 = base[CH_H]; - return tpu_setup(p, pdev); -} + clocksource_register_hz(&tpu_priv.cs, clk_get_rate(clk) / 64); -static int tpu_remove(struct platform_device *pdev) -{ - return -EBUSY; -} + return; -static const struct of_device_id tpu_of_table[] = { - { .compatible = "renesas,tpu" }, - { } -}; - -static struct platform_driver tpu_driver = { - .probe = tpu_probe, - .remove = tpu_remove, - .driver = { - .name = "h8s-tpu", - .of_match_table = of_match_ptr(tpu_of_table), - } -}; - -static int __init tpu_init(void) -{ - return platform_driver_register(&tpu_driver); -} - -static void __exit tpu_exit(void) -{ - platform_driver_unregister(&tpu_driver); +unmap_L: + iounmap(base[CH_H]); +free_clk: + clk_put(clk); } -subsys_initcall(tpu_init); -module_exit(tpu_exit); -MODULE_AUTHOR("Yoshinori Sato"); -MODULE_DESCRIPTION("H8S Timer Pulse Unit Driver"); -MODULE_LICENSE("GPL v2"); +CLOCKSOURCE_OF_DECLARE(h8300_tpu, "renesas,tpu", h8300_tpu_init); diff --git a/drivers/clocksource/mtk_timer.c b/drivers/clocksource/mtk_timer.c index fbfc74685e6a..d67bc356488f 100644 --- a/drivers/clocksource/mtk_timer.c +++ b/drivers/clocksource/mtk_timer.c @@ -16,6 +16,8 @@ * GNU General Public License for more details. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/clk.h> #include <linux/clockchips.h> #include <linux/interrupt.h> @@ -187,10 +189,8 @@ static void __init mtk_timer_init(struct device_node *node) struct clk *clk; evt = kzalloc(sizeof(*evt), GFP_KERNEL); - if (!evt) { - pr_warn("Can't allocate mtk clock event driver struct"); + if (!evt) return; - } evt->dev.name = "mtk_tick"; evt->dev.rating = 300; @@ -204,31 +204,31 @@ static void __init mtk_timer_init(struct device_node *node) evt->gpt_base = of_io_request_and_map(node, 0, "mtk-timer"); if (IS_ERR(evt->gpt_base)) { - pr_warn("Can't get resource\n"); - return; + pr_err("Can't get resource\n"); + goto err_kzalloc; } evt->dev.irq = irq_of_parse_and_map(node, 0); if (evt->dev.irq <= 0) { - pr_warn("Can't parse IRQ"); + pr_err("Can't parse IRQ\n"); goto err_mem; } clk = of_clk_get(node, 0); if (IS_ERR(clk)) { - pr_warn("Can't get timer clock"); + pr_err("Can't get timer clock\n"); goto err_irq; } if (clk_prepare_enable(clk)) { - pr_warn("Can't prepare clock"); + pr_err("Can't prepare clock\n"); goto err_clk_put; } rate = clk_get_rate(clk); if (request_irq(evt->dev.irq, mtk_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL, "mtk_timer", evt)) { - pr_warn("failed to setup irq %d\n", evt->dev.irq); + pr_err("failed to setup irq %d\n", evt->dev.irq); goto err_clk_disable; } @@ -260,5 +260,7 @@ err_mem: iounmap(evt->gpt_base); of_address_to_resource(node, 0, &res); release_mem_region(res.start, resource_size(&res)); +err_kzalloc: + kfree(evt); } CLOCKSOURCE_OF_DECLARE(mtk_mt6577, "mediatek,mt6577-timer", mtk_timer_init); diff --git a/drivers/clocksource/rockchip_timer.c b/drivers/clocksource/rockchip_timer.c index d3c1742ded1a..8c77a529d0d4 100644 --- a/drivers/clocksource/rockchip_timer.c +++ b/drivers/clocksource/rockchip_timer.c @@ -17,16 +17,16 @@ #define TIMER_NAME "rk_timer" -#define TIMER_LOAD_COUNT0 0x00 -#define TIMER_LOAD_COUNT1 0x04 -#define TIMER_CONTROL_REG 0x10 -#define TIMER_INT_STATUS 0x18 +#define TIMER_LOAD_COUNT0 0x00 +#define TIMER_LOAD_COUNT1 0x04 +#define TIMER_CONTROL_REG 0x10 +#define TIMER_INT_STATUS 0x18 -#define TIMER_DISABLE 0x0 -#define TIMER_ENABLE 0x1 -#define TIMER_MODE_FREE_RUNNING (0 << 1) -#define TIMER_MODE_USER_DEFINED_COUNT (1 << 1) -#define TIMER_INT_UNMASK (1 << 2) +#define TIMER_DISABLE 0x0 +#define TIMER_ENABLE 0x1 +#define TIMER_MODE_FREE_RUNNING (0 << 1) +#define TIMER_MODE_USER_DEFINED_COUNT (1 << 1) +#define TIMER_INT_UNMASK (1 << 2) struct bc_timer { struct clock_event_device ce; @@ -49,14 +49,12 @@ static inline void __iomem *rk_base(struct clock_event_device *ce) static inline void rk_timer_disable(struct clock_event_device *ce) { writel_relaxed(TIMER_DISABLE, rk_base(ce) + TIMER_CONTROL_REG); - dsb(); } static inline void rk_timer_enable(struct clock_event_device *ce, u32 flags) { writel_relaxed(TIMER_ENABLE | TIMER_INT_UNMASK | flags, rk_base(ce) + TIMER_CONTROL_REG); - dsb(); } static void rk_timer_update_counter(unsigned long cycles, @@ -64,13 +62,11 @@ static void rk_timer_update_counter(unsigned long cycles, { writel_relaxed(cycles, rk_base(ce) + TIMER_LOAD_COUNT0); writel_relaxed(0, rk_base(ce) + TIMER_LOAD_COUNT1); - dsb(); } static void rk_timer_interrupt_clear(struct clock_event_device *ce) { writel_relaxed(1, rk_base(ce) + TIMER_INT_STATUS); - dsb(); } static inline int rk_timer_set_next_event(unsigned long cycles, @@ -173,4 +169,5 @@ static void __init rk_timer_init(struct device_node *np) clockevents_config_and_register(ce, bc_timer.freq, 1, UINT_MAX); } + CLOCKSOURCE_OF_DECLARE(rk_timer, "rockchip,rk3288-timer", rk_timer_init); diff --git a/drivers/clocksource/tegra20_timer.c b/drivers/clocksource/tegra20_timer.c index 6ebda1177e79..38333aba3055 100644 --- a/drivers/clocksource/tegra20_timer.c +++ b/drivers/clocksource/tegra20_timer.c @@ -96,7 +96,8 @@ static struct clock_event_device tegra_clockevent = { .name = "timer0", .rating = 300, .features = CLOCK_EVT_FEAT_ONESHOT | - CLOCK_EVT_FEAT_PERIODIC, + CLOCK_EVT_FEAT_PERIODIC | + CLOCK_EVT_FEAT_DYNIRQ, .set_next_event = tegra_timer_set_next_event, .set_state_shutdown = tegra_timer_shutdown, .set_state_periodic = tegra_timer_set_periodic, diff --git a/drivers/clocksource/vt8500_timer.c b/drivers/clocksource/vt8500_timer.c index a92e94b40b5b..de49805fbb09 100644 --- a/drivers/clocksource/vt8500_timer.c +++ b/drivers/clocksource/vt8500_timer.c @@ -30,7 +30,6 @@ #include <linux/clocksource.h> #include <linux/clockchips.h> #include <linux/delay.h> -#include <asm/mach/time.h> #include <linux/of.h> #include <linux/of_address.h> diff --git a/drivers/irqchip/irq-renesas-h8300h.c b/drivers/irqchip/irq-renesas-h8300h.c index 6fd30d5ee14d..c378768d75b3 100644 --- a/drivers/irqchip/irq-renesas-h8300h.c +++ b/drivers/irqchip/irq-renesas-h8300h.c @@ -21,9 +21,9 @@ static const char ipr_bit[] = { 10, 10, 10, 10, 9, 9, 9, 9, }; -static void *intc_baseaddr; +static void __iomem *intc_baseaddr; -#define IPR ((unsigned long)intc_baseaddr + 6) +#define IPR (intc_baseaddr + 6) static void h8300h_disable_irq(struct irq_data *data) { @@ -81,8 +81,8 @@ static int __init h8300h_intc_of_init(struct device_node *intc, BUG_ON(!intc_baseaddr); /* All interrupt priority low */ - ctrl_outb(0x00, IPR + 0); - ctrl_outb(0x00, IPR + 1); + writeb(0x00, IPR + 0); + writeb(0x00, IPR + 1); domain = irq_domain_add_linear(intc, NR_IRQS, &irq_ops, NULL); BUG_ON(!domain); diff --git a/include/linux/sched_clock.h b/include/linux/sched_clock.h index efa931c5cef1..411b52e424e1 100644 --- a/include/linux/sched_clock.h +++ b/include/linux/sched_clock.h @@ -10,11 +10,17 @@ #ifdef CONFIG_GENERIC_SCHED_CLOCK extern void sched_clock_postinit(void); -#else -static inline void sched_clock_postinit(void) { } -#endif extern void sched_clock_register(u64 (*read)(void), int bits, unsigned long rate); +#else +static inline void sched_clock_postinit(void) { } + +static inline void sched_clock_register(u64 (*read)(void), int bits, + unsigned long rate) +{ + ; +} +#endif #endif |