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irqchip/s3c24xx: Fixup IO accessors for big endian 

Instead of using the __raw accessors, use the _relaxed versions
to deal with any issues due to endian-ness of the CPU.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
[jac: reformat subject line, fix commit message typo]
Link: https://lkml.kernel.org/r/1466504432-24187-10-git-send-email-ben.dooks@codethink.co.uk
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
hifive-unleashed-5.1
Ben Dooks 2016-06-21 11:20:30 +01:00 committed by Jason Cooper
parent 2a4fe14bc8
commit 353332855e
1 changed files with 18 additions and 18 deletions
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36
drivers/irqchip/irq-s3c24xx.c
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@ -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;