genirq: Generic chip: Change irq_reg_{readl,writel} arguments

Pass in the irq_chip_generic struct so we can use different readl/writel
settings for each irqchip driver, when appropriate.  Compute
(gc->reg_base + reg_offset) in the helper function because this is pretty
much what all callers want to do anyway.

Compile-tested using the following configurations:

    at91_dt_defconfig (CONFIG_ATMEL_AIC_IRQ=y)
    sama5_defconfig (CONFIG_ATMEL_AIC5_IRQ=y)
    sunxi_defconfig (CONFIG_ARCH_SUNXI=y)

tb10x (ARC) is untested.

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lkml.kernel.org/r/1415342669-30640-3-git-send-email-cernekee@gmail.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

1 files changed, 13 insertions, 7 deletions

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 03f48d936f66..ed1135d32d80 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -20,6 +20,7 @@
 #include <linux/errno.h>
 #include <linux/topology.h>
 #include <linux/wait.h>
+#include <linux/io.h>
 
 #include <asm/irq.h>
 #include <asm/ptrace.h>
@@ -639,13 +640,6 @@ void arch_teardown_hwirq(unsigned int irq);
 void irq_init_desc(unsigned int irq);
 #endif
 
-#ifndef irq_reg_writel
-# define irq_reg_writel(val, addr)      writel(val, addr)
-#endif
-#ifndef irq_reg_readl
-# define irq_reg_readl(addr)            readl(addr)
-#endif
-
 /**
  * struct irq_chip_regs - register offsets for struct irq_gci
  * @enable:     Enable register offset to reg_base
@@ -821,4 +815,16 @@ static inline void irq_gc_lock(struct irq_chip_generic *gc) { }
 static inline void irq_gc_unlock(struct irq_chip_generic *gc) { }
 #endif
 
+static inline void irq_reg_writel(struct irq_chip_generic *gc,
+                                  u32 val, int reg_offset)
+{
+        writel(val, gc->reg_base + reg_offset);
+}
+
+static inline u32 irq_reg_readl(struct irq_chip_generic *gc,
+                                int reg_offset)
+{
+        return readl(gc->reg_base + reg_offset);
+}
+
 #endif /* _LINUX_IRQ_H */