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

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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>
This commit is contained in:
Kevin Cernekee
2014-11-06 22:44:17 -08:00
committed by Jason Cooper
parent 1dacf194b1
commit 332fd7c4fe
6 changed files with 78 additions and 75 deletions
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20
include/linux/irq.h
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@@ -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 */