Instead of using the __raw accesors, use the _relaxed versions
to deal with any issues due to endian-ness of the CPU.
Signed-off-by: Ben Dooks <ben.do...@codethink.co.uk>
---
CC: Thomas Gleixner <t...@linutronix.de> (maintainer:IRQCHIP DRIVERS)
CC: Jason Cooper <ja...@lakedaemon.net> (maintainer:IRQCHIP DRIVERS)
CC: Marc Zyngier <marc.zyng...@arm.com> (maintainer:IRQCHIP DRIVERS)
CC: linux-kernel@vger.kernel.org (open list:IRQCHIP DRIVERS)
CC: linux-arm-ker...@lists.infradead.org
---
drivers/irqchip/irq-s3c24xx.c | 36 ++++++++++++++++++------------------
1 file changed, 18 insertions(+), 18 deletions(-)
diff --git a/drivers/irqchip/irq-s3c24xx.c b/drivers/irqchip/irq-s3c24xx.c
index 5dc5a76..c25ce5a 100644
--- a/drivers/irqchip/irq-s3c24xx.c
+++ b/drivers/irqchip/irq-s3c24xx.c
@@ -92,9 +92,9 @@ static void s3c_irq_mask(struct irq_data *data)
unsigned long mask;
unsigned int irqno;
- mask = __raw_readl(intc->reg_mask);
+ mask = readl_relaxed(intc->reg_mask);
mask |= (1UL << irq_data->offset);
- __raw_writel(mask, intc->reg_mask);
+ writel_relaxed(mask, intc->reg_mask);
if (parent_intc) {
parent_data = &parent_intc->irqs[irq_data->parent_irq];
@@ -119,9 +119,9 @@ static void s3c_irq_unmask(struct irq_data *data)
unsigned long mask;
unsigned int irqno;
- mask = __raw_readl(intc->reg_mask);
+ mask = readl_relaxed(intc->reg_mask);
mask &= ~(1UL << irq_data->offset);
- __raw_writel(mask, intc->reg_mask);
+ writel_relaxed(mask, intc->reg_mask);
if (parent_intc) {
irqno = irq_find_mapping(parent_intc->domain,
@@ -136,9 +136,9 @@ static inline void s3c_irq_ack(struct irq_data *data)
struct s3c_irq_intc *intc = irq_data->intc;
unsigned long bitval = 1UL << irq_data->offset;
- __raw_writel(bitval, intc->reg_pending);
+ writel_relaxed(bitval, intc->reg_pending);
if (intc->reg_intpnd)
- __raw_writel(bitval, intc->reg_intpnd);
+ writel_relaxed(bitval, intc->reg_intpnd);
}
static int s3c_irq_type(struct irq_data *data, unsigned int type)
@@ -172,9 +172,9 @@ static int s3c_irqext_type_set(void __iomem *gpcon_reg,
unsigned long newvalue = 0, value;
/* Set the GPIO to external interrupt mode */
- value = __raw_readl(gpcon_reg);
+ value = readl_relaxed(gpcon_reg);
value = (value & ~(3 << gpcon_offset)) | (0x02 << gpcon_offset);
- __raw_writel(value, gpcon_reg);
+ writel_relaxed(value, gpcon_reg);
/* Set the external interrupt to pointed trigger type */
switch (type)
@@ -208,9 +208,9 @@ static int s3c_irqext_type_set(void __iomem *gpcon_reg,
return -EINVAL;
}
- value = __raw_readl(extint_reg);
+ value = readl_relaxed(extint_reg);
value = (value & ~(7 << extint_offset)) | (newvalue << extint_offset);
- __raw_writel(value, extint_reg);
+ writel_relaxed(value, extint_reg);
return 0;
}
@@ -315,8 +315,8 @@ static void s3c_irq_demux(struct irq_desc *desc)
chained_irq_enter(chip, desc);
- src = __raw_readl(sub_intc->reg_pending);
- msk = __raw_readl(sub_intc->reg_mask);
+ src = readl_relaxed(sub_intc->reg_pending);
+ msk = readl_relaxed(sub_intc->reg_mask);
src &= ~msk;
src &= irq_data->sub_bits;
@@ -337,7 +337,7 @@ static inline int s3c24xx_handle_intc(struct s3c_irq_intc
*intc,
int pnd;
int offset;
- pnd = __raw_readl(intc->reg_intpnd);
+ pnd = readl_relaxed(intc->reg_intpnd);
if (!pnd)
return false;
@@ -352,7 +352,7 @@ static inline int s3c24xx_handle_intc(struct s3c_irq_intc
*intc,
*
* Thanks to Klaus, Shannon, et al for helping to debug this problem
*/
- offset = __raw_readl(intc->reg_intpnd + 4);
+ offset = readl_relaxed(intc->reg_intpnd + 4);
/* Find the bit manually, when the offset is wrong.
* The pending register only ever contains the one bit of the next
@@ -406,7 +406,7 @@ int s3c24xx_set_fiq(unsigned int irq, bool on)
intmod = 0;
}
- __raw_writel(intmod, S3C2410_INTMOD);
+ writel_relaxed(intmod, S3C2410_INTMOD);
return 0;
}
@@ -508,14 +508,14 @@ static void s3c24xx_clear_intc(struct s3c_irq_intc *intc)
last = 0;
for (i = 0; i < 4; i++) {
- pend = __raw_readl(reg_source);
+ pend = readl_relaxed(reg_source);
if (pend == 0 || pend == last)
break;
- __raw_writel(pend, intc->reg_pending);
+ writel_relaxed(pend, intc->reg_pending);
if (intc->reg_intpnd)
- __raw_writel(pend, intc->reg_intpnd);
+ writel_relaxed(pend, intc->reg_intpnd);
pr_info("irq: clearing pending status %08x\n", (int)pend);
last = pend;
--
2.8.1
