diff options
Diffstat (limited to 'drivers/irqchip/spear-shirq.c')
-rw-r--r-- | drivers/irqchip/spear-shirq.c | 52 |
1 files changed, 45 insertions, 7 deletions
diff --git a/drivers/irqchip/spear-shirq.c b/drivers/irqchip/spear-shirq.c index 93f2196e8a08..441e39f08135 100644 --- a/drivers/irqchip/spear-shirq.c +++ b/drivers/irqchip/spear-shirq.c @@ -19,7 +19,6 @@ #include <linux/io.h> #include <linux/irq.h> #include <linux/irqdomain.h> -#include <linux/irqchip/spear-shirq.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/of_irq.h> @@ -27,6 +26,45 @@ #include "irqchip.h" +/* + * struct shirq_regs: shared irq register configuration + * + * enb_reg: enable register offset + * reset_to_enb: val 1 indicates, we need to clear bit for enabling interrupt + * status_reg: status register offset + * status_reg_mask: status register valid mask + * clear_reg: clear register offset + * reset_to_clear: val 1 indicates, we need to clear bit for clearing interrupt + */ +struct shirq_regs { + u32 enb_reg; + u32 reset_to_enb; + u32 status_reg; + u32 clear_reg; + u32 reset_to_clear; +}; + +/* + * struct spear_shirq: shared irq structure + * + * irq: hardware irq number + * irq_base: base irq in linux domain + * irq_nr: no. of shared interrupts in a particular block + * irq_bit_off: starting bit offset in the status register + * invalid_irq: irq group is currently disabled + * base: base address of shared irq register + * regs: register configuration for shared irq block + */ +struct spear_shirq { + u32 irq; + u32 irq_base; + u32 irq_nr; + u32 irq_bit_off; + int invalid_irq; + void __iomem *base; + struct shirq_regs regs; +}; + static DEFINE_SPINLOCK(lock); /* spear300 shared irq registers offsets and masks */ @@ -296,24 +334,24 @@ err_unmap: return -ENXIO; } -int __init spear300_shirq_of_init(struct device_node *np, - struct device_node *parent) +static int __init spear300_shirq_of_init(struct device_node *np, + struct device_node *parent) { return shirq_init(spear300_shirq_blocks, ARRAY_SIZE(spear300_shirq_blocks), np); } IRQCHIP_DECLARE(spear300_shirq, "st,spear300-shirq", spear300_shirq_of_init); -int __init spear310_shirq_of_init(struct device_node *np, - struct device_node *parent) +static int __init spear310_shirq_of_init(struct device_node *np, + struct device_node *parent) { return shirq_init(spear310_shirq_blocks, ARRAY_SIZE(spear310_shirq_blocks), np); } IRQCHIP_DECLARE(spear310_shirq, "st,spear310-shirq", spear310_shirq_of_init); -int __init spear320_shirq_of_init(struct device_node *np, - struct device_node *parent) +static int __init spear320_shirq_of_init(struct device_node *np, + struct device_node *parent) { return shirq_init(spear320_shirq_blocks, ARRAY_SIZE(spear320_shirq_blocks), np); |