Commit-ID:  1b422ecd27866985b9f35d0d2b5ae6e9122dd4c0
Gitweb:     http://git.kernel.org/tip/1b422ecd27866985b9f35d0d2b5ae6e9122dd4c0
Author:     Hans de Goede <[email protected]>
AuthorDate: Thu, 27 Mar 2014 18:02:39 +0100
Committer:  Thomas Gleixner <[email protected]>
CommitDate: Mon, 31 Mar 2014 11:12:57 +0200

irqchip: sun7i/sun6i: Disable NMI before registering the handler

It is advisable to disable the NMI before registering the IRQ handler as
registering the IRQ handler unmasks the IRQ on the GIC, so if U-Boot has
left the NMI enabled and the NMI pin is active we will immediately get
an interrupt before any driver has claimed the downstream interrupt of
the NMI.

Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Carlo Caione <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: 
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
---
 drivers/irqchip/irq-sunxi-nmi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/irqchip/irq-sunxi-nmi.c b/drivers/irqchip/irq-sunxi-nmi.c
index 1c8566c..12f547a 100644
--- a/drivers/irqchip/irq-sunxi-nmi.c
+++ b/drivers/irqchip/irq-sunxi-nmi.c
@@ -179,12 +179,12 @@ static int __init sunxi_sc_nmi_irq_init(struct 
device_node *node,
        gc->chip_types[1].regs.type             = reg_offs->ctrl;
        gc->chip_types[1].handler               = handle_edge_irq;
 
-       irq_set_handler_data(irq, domain);
-       irq_set_chained_handler(irq, sunxi_sc_nmi_handle_irq);
-
        sunxi_sc_nmi_write(gc, reg_offs->enable, 0);
        sunxi_sc_nmi_write(gc, reg_offs->pend, 0x1);
 
+       irq_set_handler_data(irq, domain);
+       irq_set_chained_handler(irq, sunxi_sc_nmi_handle_irq);
+
        return 0;
 
 fail_irqd_remove:
--
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