diff options
Diffstat (limited to 'arch/arm/plat-omap/dmtimer.c')
| -rw-r--r-- | arch/arm/plat-omap/dmtimer.c | 54 |
1 files changed, 43 insertions, 11 deletions
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c index e4f0ce04ba92..55bb99631292 100644 --- a/arch/arm/plat-omap/dmtimer.c +++ b/arch/arm/plat-omap/dmtimer.c @@ -33,6 +33,7 @@ #include <linux/clk.h> #include <linux/delay.h> #include <linux/io.h> +#include <linux/module.h> #include <mach/hardware.h> #include <mach/dmtimer.h> #include <mach/irqs.h> @@ -237,7 +238,7 @@ static struct omap_dm_timer omap3_dm_timers[] = { { .phys_base = 0x49040000, .irq = INT_24XX_GPTIMER9 }, { .phys_base = 0x48086000, .irq = INT_24XX_GPTIMER10 }, { .phys_base = 0x48088000, .irq = INT_24XX_GPTIMER11 }, - { .phys_base = 0x48304000, .irq = INT_24XX_GPTIMER12 }, + { .phys_base = 0x48304000, .irq = INT_34XX_GPT12_IRQ }, }; static const char *omap3_dm_source_names[] __initdata = { @@ -320,11 +321,9 @@ static void omap_dm_timer_reset(struct omap_dm_timer *timer) l |= 0x2 << 8; /* Set clock activity to perserve f-clock on idle */ /* - * Enable wake-up only for GPT1 on OMAP2 CPUs. - * FIXME: All timers should have wake-up enabled and clear - * PRCM status. + * Enable wake-up on OMAP2 CPUs. */ - if (cpu_class_is_omap2() && (timer == &dm_timers[0])) + if (cpu_class_is_omap2()) l |= 1 << 2; omap_dm_timer_write_reg(timer, OMAP_TIMER_OCP_CFG_REG, l); @@ -362,6 +361,7 @@ struct omap_dm_timer *omap_dm_timer_request(void) return timer; } +EXPORT_SYMBOL_GPL(omap_dm_timer_request); struct omap_dm_timer *omap_dm_timer_request_specific(int id) { @@ -385,6 +385,7 @@ struct omap_dm_timer *omap_dm_timer_request_specific(int id) return timer; } +EXPORT_SYMBOL_GPL(omap_dm_timer_request_specific); void omap_dm_timer_free(struct omap_dm_timer *timer) { @@ -395,6 +396,7 @@ void omap_dm_timer_free(struct omap_dm_timer *timer) WARN_ON(!timer->reserved); timer->reserved = 0; } +EXPORT_SYMBOL_GPL(omap_dm_timer_free); void omap_dm_timer_enable(struct omap_dm_timer *timer) { @@ -406,6 +408,7 @@ void omap_dm_timer_enable(struct omap_dm_timer *timer) timer->enabled = 1; } +EXPORT_SYMBOL_GPL(omap_dm_timer_enable); void omap_dm_timer_disable(struct omap_dm_timer *timer) { @@ -417,11 +420,13 @@ void omap_dm_timer_disable(struct omap_dm_timer *timer) timer->enabled = 0; } +EXPORT_SYMBOL_GPL(omap_dm_timer_disable); int omap_dm_timer_get_irq(struct omap_dm_timer *timer) { return timer->irq; } +EXPORT_SYMBOL_GPL(omap_dm_timer_get_irq); #if defined(CONFIG_ARCH_OMAP1) @@ -452,6 +457,7 @@ __u32 omap_dm_timer_modify_idlect_mask(__u32 inputmask) return inputmask; } +EXPORT_SYMBOL_GPL(omap_dm_timer_modify_idlect_mask); #elif defined(CONFIG_ARCH_OMAP2) || defined (CONFIG_ARCH_OMAP3) @@ -459,6 +465,7 @@ struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer) { return timer->fclk; } +EXPORT_SYMBOL_GPL(omap_dm_timer_get_fclk); __u32 omap_dm_timer_modify_idlect_mask(__u32 inputmask) { @@ -466,6 +473,7 @@ __u32 omap_dm_timer_modify_idlect_mask(__u32 inputmask) return 0; } +EXPORT_SYMBOL_GPL(omap_dm_timer_modify_idlect_mask); #endif @@ -473,6 +481,7 @@ void omap_dm_timer_trigger(struct omap_dm_timer *timer) { omap_dm_timer_write_reg(timer, OMAP_TIMER_TRIGGER_REG, 0); } +EXPORT_SYMBOL_GPL(omap_dm_timer_trigger); void omap_dm_timer_start(struct omap_dm_timer *timer) { @@ -484,6 +493,7 @@ void omap_dm_timer_start(struct omap_dm_timer *timer) omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l); } } +EXPORT_SYMBOL_GPL(omap_dm_timer_start); void omap_dm_timer_stop(struct omap_dm_timer *timer) { @@ -495,10 +505,11 @@ void omap_dm_timer_stop(struct omap_dm_timer *timer) omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l); } } +EXPORT_SYMBOL_GPL(omap_dm_timer_stop); #ifdef CONFIG_ARCH_OMAP1 -void omap_dm_timer_set_source(struct omap_dm_timer *timer, int source) +int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source) { int n = (timer - dm_timers) << 1; u32 l; @@ -506,23 +517,33 @@ void omap_dm_timer_set_source(struct omap_dm_timer *timer, int source) l = omap_readl(MOD_CONF_CTRL_1) & ~(0x03 << n); l |= source << n; omap_writel(l, MOD_CONF_CTRL_1); + + return 0; } +EXPORT_SYMBOL_GPL(omap_dm_timer_set_source); #else -void omap_dm_timer_set_source(struct omap_dm_timer *timer, int source) +int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source) { + int ret = -EINVAL; + if (source < 0 || source >= 3) - return; + return -EINVAL; clk_disable(timer->fclk); - clk_set_parent(timer->fclk, dm_source_clocks[source]); + ret = clk_set_parent(timer->fclk, dm_source_clocks[source]); clk_enable(timer->fclk); - /* When the functional clock disappears, too quick writes seem to - * cause an abort. */ + /* + * When the functional clock disappears, too quick writes seem + * to cause an abort. XXX Is this still necessary? + */ __delay(150000); + + return ret; } +EXPORT_SYMBOL_GPL(omap_dm_timer_set_source); #endif @@ -541,6 +562,7 @@ void omap_dm_timer_set_load(struct omap_dm_timer *timer, int autoreload, omap_dm_timer_write_reg(timer, OMAP_TIMER_TRIGGER_REG, 0); } +EXPORT_SYMBOL_GPL(omap_dm_timer_set_load); /* Optimized set_load which removes costly spin wait in timer_start */ void omap_dm_timer_set_load_start(struct omap_dm_timer *timer, int autoreload, @@ -560,6 +582,7 @@ void omap_dm_timer_set_load_start(struct omap_dm_timer *timer, int autoreload, omap_dm_timer_write_reg(timer, OMAP_TIMER_COUNTER_REG, load); omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l); } +EXPORT_SYMBOL_GPL(omap_dm_timer_set_load_start); void omap_dm_timer_set_match(struct omap_dm_timer *timer, int enable, unsigned int match) @@ -574,6 +597,7 @@ void omap_dm_timer_set_match(struct omap_dm_timer *timer, int enable, omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l); omap_dm_timer_write_reg(timer, OMAP_TIMER_MATCH_REG, match); } +EXPORT_SYMBOL_GPL(omap_dm_timer_set_match); void omap_dm_timer_set_pwm(struct omap_dm_timer *timer, int def_on, int toggle, int trigger) @@ -590,6 +614,7 @@ void omap_dm_timer_set_pwm(struct omap_dm_timer *timer, int def_on, l |= trigger << 10; omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l); } +EXPORT_SYMBOL_GPL(omap_dm_timer_set_pwm); void omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, int prescaler) { @@ -603,6 +628,7 @@ void omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, int prescaler) } omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l); } +EXPORT_SYMBOL_GPL(omap_dm_timer_set_prescaler); void omap_dm_timer_set_int_enable(struct omap_dm_timer *timer, unsigned int value) @@ -610,6 +636,7 @@ void omap_dm_timer_set_int_enable(struct omap_dm_timer *timer, omap_dm_timer_write_reg(timer, OMAP_TIMER_INT_EN_REG, value); omap_dm_timer_write_reg(timer, OMAP_TIMER_WAKEUP_EN_REG, value); } +EXPORT_SYMBOL_GPL(omap_dm_timer_set_int_enable); unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer) { @@ -619,11 +646,13 @@ unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer) return l; } +EXPORT_SYMBOL_GPL(omap_dm_timer_read_status); void omap_dm_timer_write_status(struct omap_dm_timer *timer, unsigned int value) { omap_dm_timer_write_reg(timer, OMAP_TIMER_STAT_REG, value); } +EXPORT_SYMBOL_GPL(omap_dm_timer_write_status); unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *timer) { @@ -633,11 +662,13 @@ unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *timer) return l; } +EXPORT_SYMBOL_GPL(omap_dm_timer_read_counter); void omap_dm_timer_write_counter(struct omap_dm_timer *timer, unsigned int value) { omap_dm_timer_write_reg(timer, OMAP_TIMER_COUNTER_REG, value); } +EXPORT_SYMBOL_GPL(omap_dm_timer_write_counter); int omap_dm_timers_active(void) { @@ -658,6 +689,7 @@ int omap_dm_timers_active(void) } return 0; } +EXPORT_SYMBOL_GPL(omap_dm_timers_active); int __init omap_dm_timer_init(void) { |