irqchip: 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>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Lee Jones <lee@kernel.org>
Cc: Alexander Shiyan <shc_work@mail.ru>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: linux-rpi-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Link: http://lkml.kernel.org/r/1440889285-5637-3-git-send-email-robh@kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 0 insertions, 3 deletions

diff --git a/drivers/irqchip/irq-mmp.c b/drivers/irqchip/irq-mmp.c
index ea6e3a96f3b3..013fc9659a84 100644
--- a/drivers/irqchip/irq-mmp.c
+++ b/drivers/irqchip/irq-mmp.c
@@ -164,7 +164,6 @@ static int mmp_irq_domain_map(struct irq_domain *d, unsigned int irq,
                               irq_hw_number_t hw)
 {
         irq_set_chip_and_handler(irq, &icu_irq_chip, handle_level_irq);
-        set_irq_flags(irq, IRQF_VALID);
         return 0;
 }
 
@@ -234,7 +233,6 @@ void __init icu_init_irq(void)
         for (irq = 0; irq < 64; irq++) {
                 icu_mask_irq(irq_get_irq_data(irq));
                 irq_set_chip_and_handler(irq, &icu_irq_chip, handle_level_irq);
-                set_irq_flags(irq, IRQF_VALID);
         }
         irq_set_default_host(icu_data[0].domain);
         set_handle_irq(mmp_handle_irq);
@@ -337,7 +335,6 @@ void __init mmp2_init_icu(void)
                         irq_set_chip_and_handler(irq, &icu_irq_chip,
                                                  handle_level_irq);
                 }
-                set_irq_flags(irq, IRQF_VALID);
         }
         irq_set_default_host(icu_data[0].domain);
         set_handle_irq(mmp2_handle_irq);