mfd: Kill off set_irq_flags usage

set_irq_flags is ARM specific with custom flags which have genirq
equivalents. Convert drivers to use the genirq interfaces directly, so we
can kill off set_irq_flags. The translation of flags is as follows:

IRQF_VALID -> !IRQ_NOREQUEST
IRQF_PROBE -> !IRQ_NOPROBE
IRQF_NOAUTOEN -> IRQ_NOAUTOEN

For IRQs managed by an irqdomain, the irqdomain core code handles clearing
and setting IRQ_NOREQUEST already, so there is no need to do this in
.map() functions and we can simply remove the set_irq_flags calls. Some
users also modify IRQ_NOPROBE and this has been maintained although it
is not clear that is really needed. There appears to be a great deal of
blind copy and paste of this code.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

1 files changed, 1 insertions, 4 deletions

diff --git a/drivers/mfd/pm8921-core.c b/drivers/mfd/pm8921-core.c
index 00856a67d34b..24396d71a262 100644
--- a/drivers/mfd/pm8921-core.c
+++ b/drivers/mfd/pm8921-core.c
@@ -289,11 +289,8 @@ static int pm8xxx_irq_domain_map(struct irq_domain *d, unsigned int irq,
 
         irq_set_chip_and_handler(irq, &pm8xxx_irq_chip, handle_level_irq);
         irq_set_chip_data(irq, chip);
-#ifdef CONFIG_ARM
-        set_irq_flags(irq, IRQF_VALID);
-#else
         irq_set_noprobe(irq);
-#endif
+
         return 0;
 }