Interrupt handler in MPC8xxx GPIO driver is missing the call
to PIC EOI (end of interrupt) handler. As a result, at least
on 85XX systems, GPIO interrupt is delivered only once. This
patch adds the missing EOI call. Tested on custom P1022 board.
Signed-off-by: Felix Radensky <fe...@embedded-sol.com>
---
arch/powerpc/sysdev/mpc8xxx_gpio.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/sysdev/mpc8xxx_gpio.c
b/arch/powerpc/sysdev/mpc8xxx_gpio.c
index fb4963a..d2e0e1c 100644
--- a/arch/powerpc/sysdev/mpc8xxx_gpio.c
+++ b/arch/powerpc/sysdev/mpc8xxx_gpio.c
@@ -153,6 +153,7 @@ static void mpc8xxx_gpio_irq_cascade(unsigned int irq,
struct irq_desc *desc)
if (mask)
generic_handle_irq(irq_linear_revmap(mpc8xxx_gc->irq,
32 - ffs(mask)));
+ desc->chip->eoi(irq);
}
static void mpc8xxx_irq_unmask(struct irq_data *d)
--
1.7.4.4
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
