diff options
| -rw-r--r-- | drivers/mfd/db8500-prcmu.c | 20 | ||||
| -rw-r--r-- | include/linux/mfd/db8500-prcmu.h | 1 | ||||
| -rw-r--r-- | include/linux/mfd/dbx500-prcmu.h | 8 |
3 files changed, 29 insertions, 0 deletions
diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index 8346a0e39949..97341aa4025c 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -883,6 +883,26 @@ bool db8500_prcmu_gic_pending_irq(void) return false; } +/* + * This function copies the gic SPI settings to the prcmu in order to + * monitor them and abort/finish the retention/off sequence or state. + */ +int db8500_prcmu_copy_gic_settings(void) +{ + u32 er; /* Enable register */ + void __iomem *dist_base = __io_address(U8500_GIC_DIST_BASE); + int i; + + /* We skip the STI and PPI */ + for (i = 0; i < PRCMU_GIC_NUMBER_REGS - 1; i++) { + er = readl_relaxed(dist_base + + GIC_DIST_ENABLE_SET + (i + 1) * 4); + writel(er, PRCM_ARMITMSK31TO0 + i * 4); + } + + return 0; +} + /* This function should only be called while mb0_transfer.lock is held. */ static void config_wakeups(void) { diff --git a/include/linux/mfd/db8500-prcmu.h b/include/linux/mfd/db8500-prcmu.h index 92dac13b9ee5..a5915852176a 100644 --- a/include/linux/mfd/db8500-prcmu.h +++ b/include/linux/mfd/db8500-prcmu.h @@ -582,6 +582,7 @@ int db8500_prcmu_set_power_state(u8 state, bool keep_ulp_clk, bool keep_ap_pll); u8 db8500_prcmu_get_power_state_result(void); int db8500_prcmu_gic_decouple(void); int db8500_prcmu_gic_recouple(void); +int db8500_prcmu_copy_gic_settings(void); bool db8500_prcmu_gic_pending_irq(void); void db8500_prcmu_enable_wakeups(u32 wakeups); int db8500_prcmu_set_epod(u16 epod_id, u8 epod_state); diff --git a/include/linux/mfd/dbx500-prcmu.h b/include/linux/mfd/dbx500-prcmu.h index 16418747dad1..f8429cad0db7 100644 --- a/include/linux/mfd/dbx500-prcmu.h +++ b/include/linux/mfd/dbx500-prcmu.h @@ -305,6 +305,14 @@ static inline bool prcmu_gic_pending_irq(void) return db8500_prcmu_gic_pending_irq(); } +static inline int prcmu_copy_gic_settings(void) +{ + if (cpu_is_u5500()) + return -EINVAL; + else + return db8500_prcmu_copy_gic_settings(); +} + static inline int prcmu_set_epod(u16 epod_id, u8 epod_state) { if (cpu_is_u5500()) |