This is a note to let you know that I've just added the patch titled
pinctrl: st: Fix irqmux handler
to the 3.15-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-st-fix-irqmux-handler.patch
and it can be found in the queue-3.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 7a2deccf0ef12f7f6e33150d5875020c0c94fa94 Mon Sep 17 00:00:00 2001
From: Maxime COQUELIN <maxime.coquelin@xxxxxx>
Date: Fri, 20 Jun 2014 13:34:54 +0200
Subject: pinctrl: st: Fix irqmux handler
From: Maxime COQUELIN <maxime.coquelin@xxxxxx>
commit 7a2deccf0ef12f7f6e33150d5875020c0c94fa94 upstream.
st_gpio_irqmux_handler() reads the status register to find out
which banks inside the controller have pending IRQs.
For each banks having pending IRQs, it calls the corresponding handler.
Problem is that current code restricts the number of possible banks inside the
controller to ST_GPIO_PINS_PER_BANK. This define represents the number of pins
inside a bank, so it shouldn't be used here.
On STiH407, PIO_FRONT0 controller has 10 banks, so IRQs pending in the two
last banks (PIO18 & PIO19) aren't handled.
This patch replace ST_GPIO_PINS_PER_BANK by the number of banks inside the
controller.
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
Signed-off-by: Maxime Coquelin <maxime.coquelin@xxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pinctrl/pinctrl-st.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/pinctrl/pinctrl-st.c
+++ b/drivers/pinctrl/pinctrl-st.c
@@ -1467,7 +1467,7 @@ static void st_gpio_irqmux_handler(unsig
status = readl(info->irqmux_base);
- for_each_set_bit(n, &status, ST_GPIO_PINS_PER_BANK)
+ for_each_set_bit(n, &status, info->nbanks)
__gpio_irq_handler(&info->banks[n]);
chained_irq_exit(chip, desc);
Patches currently in stable-queue which might be from maxime.coquelin@xxxxxx are
queue-3.15/pinctrl-st-fix-irqmux-handler.patch
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