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authorChen-Yu Tsai <wens@csie.org>2017-06-06 08:59:23 +0300
committerMarc Zyngier <marc.zyngier@arm.com>2017-06-22 16:06:08 +0300
commit9ce18f6f0b0c7463fcdce70c35db17a891adc90d (patch)
tree54d55424e2223670e274b6700ba6e93e634b91a1 /drivers/irqchip/irq-sunxi-nmi.c
parent3c2993b8c6143d8a5793746a54eba8f86f95240f (diff)
downloadlinux-9ce18f6f0b0c7463fcdce70c35db17a891adc90d.tar.xz
irqchip/sunxi-nmi: Convert magic numbers to defines
The sunxi-nmi driver has a bunch of raw register offsets and bit values. Convert them into define macros for better readability. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'drivers/irqchip/irq-sunxi-nmi.c')
-rw-r--r--drivers/irqchip/irq-sunxi-nmi.c34
1 files changed, 24 insertions, 10 deletions
diff --git a/drivers/irqchip/irq-sunxi-nmi.c b/drivers/irqchip/irq-sunxi-nmi.c
index 668730c5cb66..177efb473c7d 100644
--- a/drivers/irqchip/irq-sunxi-nmi.c
+++ b/drivers/irqchip/irq-sunxi-nmi.c
@@ -25,6 +25,20 @@
#define SUNXI_NMI_SRC_TYPE_MASK 0x00000003
+#define SUNXI_NMI_IRQ_BIT BIT(0)
+
+#define SUN6I_NMI_CTRL 0x00
+#define SUN6I_NMI_PENDING 0x04
+#define SUN6I_NMI_ENABLE 0x34
+
+#define SUN7I_NMI_CTRL 0x00
+#define SUN7I_NMI_PENDING 0x04
+#define SUN7I_NMI_ENABLE 0x08
+
+#define SUN9I_NMI_CTRL 0x00
+#define SUN9I_NMI_ENABLE 0x04
+#define SUN9I_NMI_PENDING 0x08
+
enum {
SUNXI_SRC_TYPE_LEVEL_LOW = 0,
SUNXI_SRC_TYPE_EDGE_FALLING,
@@ -39,21 +53,21 @@ struct sunxi_sc_nmi_reg_offs {
};
static struct sunxi_sc_nmi_reg_offs sun7i_reg_offs = {
- .ctrl = 0x00,
- .pend = 0x04,
- .enable = 0x08,
+ .ctrl = SUN7I_NMI_CTRL,
+ .pend = SUN7I_NMI_PENDING,
+ .enable = SUN7I_NMI_ENABLE,
};
static struct sunxi_sc_nmi_reg_offs sun6i_reg_offs = {
- .ctrl = 0x00,
- .pend = 0x04,
- .enable = 0x34,
+ .ctrl = SUN6I_NMI_CTRL,
+ .pend = SUN6I_NMI_PENDING,
+ .enable = SUN6I_NMI_ENABLE,
};
static struct sunxi_sc_nmi_reg_offs sun9i_reg_offs = {
- .ctrl = 0x00,
- .pend = 0x08,
- .enable = 0x04,
+ .ctrl = SUN9I_NMI_CTRL,
+ .pend = SUN9I_NMI_PENDING,
+ .enable = SUN9I_NMI_ENABLE,
};
static inline void sunxi_sc_nmi_write(struct irq_chip_generic *gc, u32 off,
@@ -188,7 +202,7 @@ static int __init sunxi_sc_nmi_irq_init(struct device_node *node,
gc->chip_types[1].handler = handle_edge_irq;
sunxi_sc_nmi_write(gc, reg_offs->enable, 0);
- sunxi_sc_nmi_write(gc, reg_offs->pend, 0x1);
+ sunxi_sc_nmi_write(gc, reg_offs->pend, SUNXI_NMI_IRQ_BIT);
irq_set_chained_handler_and_data(irq, sunxi_sc_nmi_handle_irq, domain);