diff options
Diffstat (limited to 'arch/arm/plat-nomadik')
| -rw-r--r-- | arch/arm/plat-nomadik/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm/plat-nomadik/gpio.c | 12 | ||||
| -rw-r--r-- | arch/arm/plat-nomadik/timer.c | 31 |
3 files changed, 8 insertions, 36 deletions
diff --git a/arch/arm/plat-nomadik/Kconfig b/arch/arm/plat-nomadik/Kconfig index 187f4e84bb2..18296ee6880 100644 --- a/arch/arm/plat-nomadik/Kconfig +++ b/arch/arm/plat-nomadik/Kconfig @@ -5,6 +5,7 @@ config PLAT_NOMADIK bool depends on ARCH_NOMADIK || ARCH_U8500 + select CLKSRC_MMIO default y help Common platform code for Nomadik and other ST-Ericsson diff --git a/arch/arm/plat-nomadik/gpio.c b/arch/arm/plat-nomadik/gpio.c index f49748eca1a..307b8131aa8 100644 --- a/arch/arm/plat-nomadik/gpio.c +++ b/arch/arm/plat-nomadik/gpio.c @@ -23,6 +23,8 @@ #include <linux/irq.h> #include <linux/slab.h> +#include <asm/mach/irq.h> + #include <plat/pincfg.h> #include <mach/hardware.h> #include <mach/gpio.h> @@ -681,13 +683,7 @@ static void __nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc, struct irq_chip *host_chip = irq_get_chip(irq); unsigned int first_irq; - if (host_chip->irq_mask_ack) - host_chip->irq_mask_ack(&desc->irq_data); - else { - host_chip->irq_mask(&desc->irq_data); - if (host_chip->irq_ack) - host_chip->irq_ack(&desc->irq_data); - } + chained_irq_enter(host_chip, desc); nmk_chip = irq_get_handler_data(irq); first_irq = NOMADIK_GPIO_TO_IRQ(nmk_chip->chip.base); @@ -698,7 +694,7 @@ static void __nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc, status &= ~BIT(bit); } - host_chip->irq_unmask(&desc->irq_data); + chained_irq_exit(host_chip, desc); } static void nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc) diff --git a/arch/arm/plat-nomadik/timer.c b/arch/arm/plat-nomadik/timer.c index 41723402006..ef74e157a9d 100644 --- a/arch/arm/plat-nomadik/timer.c +++ b/arch/arm/plat-nomadik/timer.c @@ -26,29 +26,6 @@ void __iomem *mtu_base; /* Assigned by machine code */ /* - * Kernel assumes that sched_clock can be called early - * but the MTU may not yet be initialized. - */ -static cycle_t nmdk_read_timer_dummy(struct clocksource *cs) -{ - return 0; -} - -/* clocksource: MTU decrements, so we negate the value being read. */ -static cycle_t nmdk_read_timer(struct clocksource *cs) -{ - return -readl(mtu_base + MTU_VAL(0)); -} - -static struct clocksource nmdk_clksrc = { - .name = "mtu_0", - .rating = 200, - .read = nmdk_read_timer_dummy, - .mask = CLOCKSOURCE_MASK(32), - .flags = CLOCK_SOURCE_IS_CONTINUOUS, -}; - -/* * Override the global weak sched_clock symbol with this * local implementation which uses the clocksource to get some * better resolution when scheduling the kernel. @@ -172,12 +149,10 @@ void __init nmdk_timer_init(void) writel(0, mtu_base + MTU_BGLR(0)); writel(cr | MTU_CRn_ENA, mtu_base + MTU_CR(0)); - /* Now the clock source is ready */ - nmdk_clksrc.read = nmdk_read_timer; - - if (clocksource_register_hz(&nmdk_clksrc, rate)) + if (clocksource_mmio_init(mtu_base + MTU_VAL(0), "mtu_0", + rate, 200, 32, clocksource_mmio_readl_down)) pr_err("timer: failed to initialize clock source %s\n", - nmdk_clksrc.name); + "mtu_0"); init_sched_clock(&cd, nomadik_update_sched_clock, 32, rate); |