From 494336f3a6eabeede8ce07b73f5023ff4f7c745d Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 11 Oct 2013 11:30:25 +0200
Subject: [PATCH] pinctrl: nomadik: mark GPIO lines used for IRQ
When an IRQ is started on a GPIO line, mark this GPIO as IRQ in
the gpiolib so we can keep track of the usage centrally.
Cc: Enric Balletbo i Serra <eballetbo@gmail.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/pinctrl/pinctrl-nomadik.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c
index d7c3ae300fa7..7111c3b59130 100644
--- a/drivers/pinctrl/pinctrl-nomadik.c
+++ b/drivers/pinctrl/pinctrl-nomadik.c
@@ -634,6 +634,10 @@ static unsigned int nmk_gpio_irq_startup(struct irq_data *d)
{
struct nmk_gpio_chip *nmk_chip = irq_data_get_irq_chip_data(d);
+ if (gpio_lock_as_irq(&nmk_chip->chip, d->hwirq))
+ dev_err(nmk_chip->chip.dev,
+ "unable to lock HW IRQ %lu for IRQ\n",
+ d->hwirq);
clk_enable(nmk_chip->clk);
nmk_gpio_irq_unmask(d);
return 0;
@@ -645,6 +649,7 @@ static void nmk_gpio_irq_shutdown(struct irq_data *d)
nmk_gpio_irq_mask(d);
clk_disable(nmk_chip->clk);
+ gpio_unlock_as_irq(&nmk_chip->chip, d->hwirq);
}
static struct irq_chip nmk_gpio_irq_chip = {