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oxnas: prepare irqchip driver for kernel >=4.2 

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

SVN-Revision: 47216
owl
John Crispin 2015-10-19 10:09:23 +00:00
parent 392b93f579
commit 26329f650c
1 changed files with 20 additions and 3 deletions
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21
target/linux/oxnas/files/drivers/irqchip/irq-rps.c
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@ -6,8 +6,13 @@
#include <linux/irqchip/chained_irq.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/version.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(4,2,0)
# include "irqchip.h"
#else
# include <linux/irqchip.h>
#endif
struct rps_chip_data {
void __iomem *base;
@ -73,7 +78,11 @@ static int rps_irq_domain_map(struct irq_domain *d, unsigned int irq,
irq_hw_number_t hw)
{
irq_set_chip_and_handler(irq, &rps_chip, handle_level_irq);
#if LINUX_VERSION_CODE < KERNEL_VERSION(4,2,0)
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
#else
irq_set_probe(irq);
#endif
irq_set_chip_data(irq, d->host_data);
return 0;
}
@ -83,10 +92,14 @@ const struct irq_domain_ops rps_irq_domain_ops = {
.xlate = rps_irq_domain_xlate,
};
#if LINUX_VERSION_CODE < KERNEL_VERSION(4,2,0)
static void rps_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
#else
static void rps_handle_cascade_irq(struct irq_desc *desc)
#endif
{
struct rps_chip_data *chip_data = irq_get_handler_data(irq);
struct irq_chip *chip = irq_get_chip(irq);
struct rps_chip_data *chip_data = irq_desc_get_handler_data(desc);
struct irq_chip *chip = irq_desc_get_chip(desc);
unsigned int cascade_irq, rps_irq;
u32 status;
@ -97,7 +110,11 @@ static void rps_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
cascade_irq = irq_find_mapping(chip_data->domain, rps_irq);
if (unlikely(rps_irq >= RPS_IRQ_COUNT))
#if LINUX_VERSION_CODE < KERNEL_VERSION(4,2,0)
handle_bad_irq(cascade_irq, desc);
#else
handle_bad_irq(desc);
#endif
else
generic_handle_irq(cascade_irq);