This is a note to let you know that I've just added the patch titled
pinctrl: at91: use locked variant of irq_set_handler
to the 3.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pinctrl-at91-use-locked-variant-of-irq_set_handler.patch
and it can be found in the queue-3.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b0dcfd87323ea86501e93d0fa2a98d2fd3579bcf Mon Sep 17 00:00:00 2001
From: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
Date: Tue, 21 Jan 2014 16:55:18 +0100
Subject: pinctrl: at91: use locked variant of irq_set_handler
From: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
commit b0dcfd87323ea86501e93d0fa2a98d2fd3579bcf upstream.
When setting the gpio irq type, use the __irq_set_handler_locked()
variant instead of the irq_set_handler() to prevent false
spinlock recursion warning.
Signed-off-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pinctrl/pinctrl-at91.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1251,22 +1251,22 @@ static int alt_gpio_irq_type(struct irq_
switch (type) {
case IRQ_TYPE_EDGE_RISING:
- irq_set_handler(d->irq, handle_simple_irq);
+ __irq_set_handler_locked(d->irq, handle_simple_irq);
writel_relaxed(mask, pio + PIO_ESR);
writel_relaxed(mask, pio + PIO_REHLSR);
break;
case IRQ_TYPE_EDGE_FALLING:
- irq_set_handler(d->irq, handle_simple_irq);
+ __irq_set_handler_locked(d->irq, handle_simple_irq);
writel_relaxed(mask, pio + PIO_ESR);
writel_relaxed(mask, pio + PIO_FELLSR);
break;
case IRQ_TYPE_LEVEL_LOW:
- irq_set_handler(d->irq, handle_level_irq);
+ __irq_set_handler_locked(d->irq, handle_level_irq);
writel_relaxed(mask, pio + PIO_LSR);
writel_relaxed(mask, pio + PIO_FELLSR);
break;
case IRQ_TYPE_LEVEL_HIGH:
- irq_set_handler(d->irq, handle_level_irq);
+ __irq_set_handler_locked(d->irq, handle_level_irq);
writel_relaxed(mask, pio + PIO_LSR);
writel_relaxed(mask, pio + PIO_REHLSR);
break;
@@ -1275,7 +1275,7 @@ static int alt_gpio_irq_type(struct irq_
* disable additional interrupt modes:
* fall back to default behavior
*/
- irq_set_handler(d->irq, handle_simple_irq);
+ __irq_set_handler_locked(d->irq, handle_simple_irq);
writel_relaxed(mask, pio + PIO_AIMDR);
return 0;
case IRQ_TYPE_NONE:
Patches currently in stable-queue which might be from nicolas.ferre@xxxxxxxxx are
queue-3.12/pinctrl-at91-use-locked-variant-of-irq_set_handler.patch
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