diff options
| author | Felix Radensky <felix@embedded-sol.com> | 2011-10-11 10:24:21 +0200 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2011-11-03 13:12:22 -0500 |
| commit | cfadd83852eb6b9a015bc1ea396b98f395f073e0 (patch) | |
| tree | bc4271dffca4e70aad7430f0e1915fc18334f5ff /drivers/gpio | |
| parent | 15a5148c6fa6d786d4ed94c6da3b6ed1b2b44f25 (diff) | |
| download | linux-cfadd83852eb6b9a015bc1ea396b98f395f073e0.tar.bz2 | |
powerpc/8xxx: Fix interrupt handling in MPC8xxx GPIO driver
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 <felix@embedded-sol.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-mpc8xxx.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c index d74d19bf3af5..ec3fcf0a7e12 100644 --- a/drivers/gpio/gpio-mpc8xxx.c +++ b/drivers/gpio/gpio-mpc8xxx.c @@ -146,6 +146,7 @@ static int mpc8xxx_gpio_to_irq(struct gpio_chip *gc, unsigned offset) static void mpc8xxx_gpio_irq_cascade(unsigned int irq, struct irq_desc *desc) { struct mpc8xxx_gpio_chip *mpc8xxx_gc = irq_desc_get_handler_data(desc); + struct irq_chip *chip = irq_desc_get_chip(desc); struct of_mm_gpio_chip *mm = &mpc8xxx_gc->mm_gc; unsigned int mask; @@ -153,6 +154,7 @@ 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))); + chip->irq_eoi(&desc->irq_data); } static void mpc8xxx_irq_unmask(struct irq_data *d) |