diff options
Diffstat (limited to 'drivers/clocksource')
| -rw-r--r-- | drivers/clocksource/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/clocksource/arc_timer.c | 4 | ||||
| -rw-r--r-- | drivers/clocksource/arm_arch_timer.c | 4 | ||||
| -rw-r--r-- | drivers/clocksource/timer-atmel-st.c | 3 | ||||
| -rw-r--r-- | drivers/clocksource/timer-davinci.c | 24 | ||||
| -rw-r--r-- | drivers/clocksource/timer-imx-tpm.c | 8 |
6 files changed, 23 insertions, 27 deletions
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig index f2142e6bbea3..c82400273b0a 100644 --- a/drivers/clocksource/Kconfig +++ b/drivers/clocksource/Kconfig @@ -120,7 +120,6 @@ config OWL_TIMER config RDA_TIMER bool "RDA timer driver" if COMPILE_TEST - depends on GENERIC_CLOCKEVENTS select CLKSRC_MMIO select TIMER_OF help @@ -562,12 +561,11 @@ config CLKSRC_VERSATILE bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET select TIMER_OF - default y if MFD_VEXPRESS_SYSREG + default y if (ARCH_VEXPRESS || ARCH_VERSATILE) && ARM help This option enables clock source based on free running counter available in the "System Registers" block of - ARM Versatile, RealView and Versatile Express reference - platforms. + ARM Versatile and Versatile Express reference platforms. config CLKSRC_MIPS_GIC bool @@ -709,6 +707,7 @@ config MICROCHIP_PIT64B bool "Microchip PIT64B support" depends on OF || COMPILE_TEST select CLKSRC_MMIO + select TIMER_OF help This option enables Microchip PIT64B timer for Atmel based system. It supports the oneshot, the periodic diff --git a/drivers/clocksource/arc_timer.c b/drivers/clocksource/arc_timer.c index b29b5a75333e..de93dd1a8c7b 100644 --- a/drivers/clocksource/arc_timer.c +++ b/drivers/clocksource/arc_timer.c @@ -334,10 +334,8 @@ static int __init arc_clockevent_setup(struct device_node *node) } ret = arc_get_timer_clk(node); - if (ret) { - pr_err("clockevent: missing clk\n"); + if (ret) return ret; - } /* Needs apriori irq_set_percpu_devid() done in intc map function */ ret = request_percpu_irq(arc_timer_irq, timer_irq_handler, diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c index 2204a444e801..ecf7b7db2d05 100644 --- a/drivers/clocksource/arm_arch_timer.c +++ b/drivers/clocksource/arm_arch_timer.c @@ -1588,10 +1588,8 @@ static int __init arch_timer_acpi_init(struct acpi_table_header *table) arch_timers_present |= ARCH_TIMER_TYPE_CP15; ret = acpi_gtdt_init(table, &platform_timer_count); - if (ret) { - pr_err("Failed to init GTDT table.\n"); + if (ret) return ret; - } arch_timer_ppi[ARCH_TIMER_PHYS_NONSECURE_PPI] = acpi_gtdt_map_ppi(ARCH_TIMER_PHYS_NONSECURE_PPI); diff --git a/drivers/clocksource/timer-atmel-st.c b/drivers/clocksource/timer-atmel-st.c index ab0aabfae5f0..73e8aee445da 100644 --- a/drivers/clocksource/timer-atmel-st.c +++ b/drivers/clocksource/timer-atmel-st.c @@ -139,7 +139,6 @@ static int clkevt32k_next_event(unsigned long delta, struct clock_event_device *dev) { u32 alm; - int status = 0; unsigned int val; BUG_ON(delta < 2); @@ -163,7 +162,7 @@ clkevt32k_next_event(unsigned long delta, struct clock_event_device *dev) alm += delta; regmap_write(regmap_st, AT91_ST_RTAR, alm); - return status; + return 0; } static struct clock_event_device clkevt = { diff --git a/drivers/clocksource/timer-davinci.c b/drivers/clocksource/timer-davinci.c index e421946a91c5..bb4eee31ae08 100644 --- a/drivers/clocksource/timer-davinci.c +++ b/drivers/clocksource/timer-davinci.c @@ -18,7 +18,7 @@ #include <clocksource/timer-davinci.h> #undef pr_fmt -#define pr_fmt(fmt) "%s: " fmt "\n", __func__ +#define pr_fmt(fmt) "%s: " fmt, __func__ #define DAVINCI_TIMER_REG_TIM12 0x10 #define DAVINCI_TIMER_REG_TIM34 0x14 @@ -250,31 +250,29 @@ int __init davinci_timer_register(struct clk *clk, rv = clk_prepare_enable(clk); if (rv) { - pr_err("Unable to prepare and enable the timer clock"); + pr_err("Unable to prepare and enable the timer clock\n"); return rv; } if (!request_mem_region(timer_cfg->reg.start, resource_size(&timer_cfg->reg), "davinci-timer")) { - pr_err("Unable to request memory region"); + pr_err("Unable to request memory region\n"); return -EBUSY; } base = ioremap(timer_cfg->reg.start, resource_size(&timer_cfg->reg)); if (!base) { - pr_err("Unable to map the register range"); + pr_err("Unable to map the register range\n"); return -ENOMEM; } davinci_timer_init(base); tick_rate = clk_get_rate(clk); - clockevent = kzalloc(sizeof(*clockevent), GFP_KERNEL | __GFP_NOFAIL); - if (!clockevent) { - pr_err("Error allocating memory for clockevent data"); + clockevent = kzalloc(sizeof(*clockevent), GFP_KERNEL); + if (!clockevent) return -ENOMEM; - } clockevent->dev.name = "tim12"; clockevent->dev.features = CLOCK_EVT_FEAT_ONESHOT; @@ -298,7 +296,7 @@ int __init davinci_timer_register(struct clk *clk, davinci_timer_irq_timer, IRQF_TIMER, "clockevent/tim12", clockevent); if (rv) { - pr_err("Unable to request the clockevent interrupt"); + pr_err("Unable to request the clockevent interrupt\n"); return rv; } @@ -325,7 +323,7 @@ int __init davinci_timer_register(struct clk *clk, rv = clocksource_register_hz(&davinci_clocksource.dev, tick_rate); if (rv) { - pr_err("Unable to register clocksource"); + pr_err("Unable to register clocksource\n"); return rv; } @@ -343,20 +341,20 @@ static int __init of_davinci_timer_register(struct device_node *np) rv = of_address_to_resource(np, 0, &timer_cfg.reg); if (rv) { - pr_err("Unable to get the register range for timer"); + pr_err("Unable to get the register range for timer\n"); return rv; } rv = of_irq_to_resource_table(np, timer_cfg.irq, DAVINCI_TIMER_NUM_IRQS); if (rv != DAVINCI_TIMER_NUM_IRQS) { - pr_err("Unable to get the interrupts for timer"); + pr_err("Unable to get the interrupts for timer\n"); return rv; } clk = of_clk_get(np, 0); if (IS_ERR(clk)) { - pr_err("Unable to get the timer clock"); + pr_err("Unable to get the timer clock\n"); return PTR_ERR(clk); } diff --git a/drivers/clocksource/timer-imx-tpm.c b/drivers/clocksource/timer-imx-tpm.c index 6334a35fdc2f..2cdc077a39f5 100644 --- a/drivers/clocksource/timer-imx-tpm.c +++ b/drivers/clocksource/timer-imx-tpm.c @@ -61,17 +61,19 @@ static inline void tpm_irq_acknowledge(void) writel(TPM_STATUS_CH0F, timer_base + TPM_STATUS); } -static struct delay_timer tpm_delay_timer; - static inline unsigned long tpm_read_counter(void) { return readl(timer_base + TPM_CNT); } +#if defined(CONFIG_ARM) +static struct delay_timer tpm_delay_timer; + static unsigned long tpm_read_current_timer(void) { return tpm_read_counter(); } +#endif static u64 notrace tpm_read_sched_clock(void) { @@ -144,9 +146,11 @@ static struct timer_of to_tpm = { static int __init tpm_clocksource_init(void) { +#if defined(CONFIG_ARM) tpm_delay_timer.read_current_timer = &tpm_read_current_timer; tpm_delay_timer.freq = timer_of_rate(&to_tpm) >> 3; register_current_timer_delay(&tpm_delay_timer); +#endif sched_clock_register(tpm_read_sched_clock, counter_width, timer_of_rate(&to_tpm) >> 3); 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