diff options
| -rw-r--r-- | arch/blackfin/include/asm/gpio.h | 2 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/irq.h | 10 | ||||
| -rw-r--r-- | arch/blackfin/mach-bf609/pm.c | 9 | ||||
| -rw-r--r-- | arch/blackfin/mach-common/ints-priority.c | 72 | ||||
| -rw-r--r-- | arch/blackfin/mach-common/pm.c | 4 |
5 files changed, 76 insertions, 21 deletions
diff --git a/arch/blackfin/include/asm/gpio.h b/arch/blackfin/include/asm/gpio.h index 3d84d96f7c2c..98d0133346b5 100644 --- a/arch/blackfin/include/asm/gpio.h +++ b/arch/blackfin/include/asm/gpio.h @@ -141,6 +141,8 @@ static inline void bfin_pm_standby_restore(void) void bfin_gpio_pm_hibernate_restore(void); void bfin_gpio_pm_hibernate_suspend(void); +void bfin_pint_suspend(void); +void bfin_pint_resume(void); # if !BFIN_GPIO_PINT int gpio_pm_wakeup_ctrl(unsigned gpio, unsigned ctrl); diff --git a/arch/blackfin/include/asm/irq.h b/arch/blackfin/include/asm/irq.h index 89de539ed010..4ae1144a4578 100644 --- a/arch/blackfin/include/asm/irq.h +++ b/arch/blackfin/include/asm/irq.h @@ -20,6 +20,16 @@ /* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h> */ #include <mach/irq.h> +/* + * pm save bfin pint registers + */ +struct bfin_pm_pint_save { + u32 mask_set; + u32 assign; + u32 edge_set; + u32 invert_set; +}; + #if ANOMALY_05000244 && defined(CONFIG_BFIN_ICACHE) # define NOP_PAD_ANOMALY_05000244 "nop; nop;" #else diff --git a/arch/blackfin/mach-bf609/pm.c b/arch/blackfin/mach-bf609/pm.c index 8d815e057100..0211ebd142c4 100644 --- a/arch/blackfin/mach-bf609/pm.c +++ b/arch/blackfin/mach-bf609/pm.c @@ -342,16 +342,19 @@ static int __init bf609_init_pm(void) GPIO_PE12, error); } - error = request_irq(irq, test_isr, IRQF_TRIGGER_RISING | IRQF_NO_SUSPEND, "gpiope12", NULL); + error = request_irq(irq, test_isr, IRQF_TRIGGER_RISING | IRQF_NO_SUSPEND + | IRQF_FORCE_RESUME, "gpiope12", NULL); if(error < 0) printk(KERN_DEBUG "Unable to get irq\n"); #endif - error = request_irq(IRQ_CGU_EVT, dpm0_isr, IRQF_NO_SUSPEND, "cgu0 event", NULL); + error = request_irq(IRQ_CGU_EVT, dpm0_isr, IRQF_NO_SUSPEND | + IRQF_FORCE_RESUME, "cgu0 event", NULL); if(error < 0) printk(KERN_DEBUG "Unable to get irq\n"); - error = request_irq(IRQ_DPM, dpm0_isr, IRQF_NO_SUSPEND, "dpm0 event", NULL); + error = request_irq(IRQ_DPM, dpm0_isr, IRQF_NO_SUSPEND | + IRQF_FORCE_RESUME, "dpm0 event", NULL); if (error < 0) printk(KERN_DEBUG "Unable to get irq\n"); diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c index 9c7d65aee275..1aac5ebaace4 100644 --- a/arch/blackfin/mach-common/ints-priority.c +++ b/arch/blackfin/mach-common/ints-priority.c @@ -396,24 +396,6 @@ void handle_sec_fault(unsigned int irq, struct irq_desc *desc) raw_spin_unlock(&desc->lock); } -static int sec_suspend(void) -{ - return 0; -} - -static void sec_resume(void) -{ - bfin_write_SEC_SCI(0, SEC_CCTL, SEC_CCTL_RESET); - udelay(100); - bfin_write_SEC_GCTL(SEC_GCTL_EN); - bfin_write_SEC_SCI(0, SEC_CCTL, SEC_CCTL_EN | SEC_CCTL_NMI_EN); -} - -static struct syscore_ops sec_pm_syscore_ops = { - .suspend = sec_suspend, - .resume = sec_resume, -}; - #endif #ifdef CONFIG_SMP @@ -1093,6 +1075,9 @@ static int bfin_gpio_irq_type(struct irq_data *d, unsigned int type) } #ifdef CONFIG_PM +static struct bfin_pm_pint_save save_pint_reg[NR_PINT_SYS_IRQS]; +static u32 save_pint_sec_ctl[NR_PINT_SYS_IRQS]; + static int bfin_gpio_set_wake(struct irq_data *d, unsigned int state) { u32 pint_irq; @@ -1128,6 +1113,57 @@ static int bfin_gpio_set_wake(struct irq_data *d, unsigned int state) return 0; } + +void bfin_pint_suspend(void) +{ + u32 bank; + + for (bank = 0; bank < NR_PINT_SYS_IRQS; bank++) { + save_pint_reg[bank].mask_set = pint[bank]->mask_set; + save_pint_reg[bank].assign = pint[bank]->assign; + save_pint_reg[bank].edge_set = pint[bank]->edge_set; + save_pint_reg[bank].invert_set = pint[bank]->invert_set; + } +} + +void bfin_pint_resume(void) +{ + u32 bank; + + for (bank = 0; bank < NR_PINT_SYS_IRQS; bank++) { + pint[bank]->mask_set = save_pint_reg[bank].mask_set; + pint[bank]->assign = save_pint_reg[bank].assign; + pint[bank]->edge_set = save_pint_reg[bank].edge_set; + pint[bank]->invert_set = save_pint_reg[bank].invert_set; + } +} + +static int sec_suspend(void) +{ + u32 bank; + + for (bank = 0; bank < NR_PINT_SYS_IRQS; bank++) + save_pint_sec_ctl[bank] = bfin_read_SEC_SCTL(bank + SIC_SYSIRQ(IRQ_PINT0)); + return 0; +} + +static void sec_resume(void) +{ + u32 bank; + + bfin_write_SEC_SCI(0, SEC_CCTL, SEC_CCTL_RESET); + udelay(100); + bfin_write_SEC_GCTL(SEC_GCTL_EN); + bfin_write_SEC_SCI(0, SEC_CCTL, SEC_CCTL_EN | SEC_CCTL_NMI_EN); + + for (bank = 0; bank < NR_PINT_SYS_IRQS; bank++) + bfin_write_SEC_SCTL(bank + SIC_SYSIRQ(IRQ_PINT0), save_pint_sec_ctl[bank]); +} + +static struct syscore_ops sec_pm_syscore_ops = { + .suspend = sec_suspend, + .resume = sec_resume, +}; #else # define bfin_gpio_set_wake NULL #endif diff --git a/arch/blackfin/mach-common/pm.c b/arch/blackfin/mach-common/pm.c index ca6655e0d653..4878f36066c5 100644 --- a/arch/blackfin/mach-common/pm.c +++ b/arch/blackfin/mach-common/pm.c @@ -172,6 +172,8 @@ int bfin_pm_suspend_mem_enter(void) bfin_gpio_pm_hibernate_suspend(); + bfin_pint_suspend(); + #if defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK) flushinv_all_dcache(); #endif @@ -190,6 +192,8 @@ int bfin_pm_suspend_mem_enter(void) _enable_icplb(); _enable_dcplb(); + bfin_pint_resume(); + bfin_gpio_pm_hibernate_restore(); blackfin_dma_resume(); |