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authorLinus Walleij <linus.walleij@linaro.org>2013-10-11 21:51:38 +0400
committerLinus Walleij <linus.walleij@linaro.org>2013-10-16 11:59:53 +0400
commited05e204af5a2a7814858407bfd698d51e31f938 (patch)
treef13c8d098a36c5e375f75c5c77afe55e2f723227 /drivers/gpio/gpio-stmpe.c
parentc0d6c1ad0ad8fa1b7c2148ba918fd5d64a51166a (diff)
downloadlinux-ed05e204af5a2a7814858407bfd698d51e31f938.tar.xz
gpio: stmpe: drop references to "virtual" IRQ, fix bug
Rename the argument "virq" to just "irq", this IRQ isn't any more "virtual" than any other Linux IRQ number, we use "hwirq" for the actual hw-numbers, "virq" is just bogus. When doing this I see that the hwirq argument is used for mapping rather than the Linux IRQ in the map function. This doesn't look right. Use the Linux IRQ instead. I cannot test this patch so I don't know if the mapping change is correct, however since absolutely every other driver does it the other way around this doesn't look sound at all. Please help out with review. Cc: Vipul Kumar Samar <vipulkumar.samar@st.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Gabriel Fernandez <gabriel.fernandez@st.com> Cc: Jean-Nicolas Graux <jean-nicolas.graux@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-stmpe.c')
-rw-r--r--drivers/gpio/gpio-stmpe.c25
1 files changed, 13 insertions, 12 deletions
diff --git a/drivers/gpio/gpio-stmpe.c b/drivers/gpio/gpio-stmpe.c
index b33bad1bb4df..2647e243d471 100644
--- a/drivers/gpio/gpio-stmpe.c
+++ b/drivers/gpio/gpio-stmpe.c
@@ -254,9 +254,10 @@ static irqreturn_t stmpe_gpio_irq(int irq, void *dev)
while (stat) {
int bit = __ffs(stat);
int line = bank * 8 + bit;
- int virq = irq_find_mapping(stmpe_gpio->domain, line);
+ int child_irq = irq_find_mapping(stmpe_gpio->domain,
+ line);
- handle_nested_irq(virq);
+ handle_nested_irq(child_irq);
stat &= ~(1 << bit);
}
@@ -271,7 +272,7 @@ static irqreturn_t stmpe_gpio_irq(int irq, void *dev)
return IRQ_HANDLED;
}
-static int stmpe_gpio_irq_map(struct irq_domain *d, unsigned int virq,
+static int stmpe_gpio_irq_map(struct irq_domain *d, unsigned int irq,
irq_hw_number_t hwirq)
{
struct stmpe_gpio *stmpe_gpio = d->host_data;
@@ -279,26 +280,26 @@ static int stmpe_gpio_irq_map(struct irq_domain *d, unsigned int virq,
if (!stmpe_gpio)
return -EINVAL;
- irq_set_chip_data(hwirq, stmpe_gpio);
- irq_set_chip_and_handler(hwirq, &stmpe_gpio_irq_chip,
+ irq_set_chip_data(irq, stmpe_gpio);
+ irq_set_chip_and_handler(irq, &stmpe_gpio_irq_chip,
handle_simple_irq);
- irq_set_nested_thread(hwirq, 1);
+ irq_set_nested_thread(irq, 1);
#ifdef CONFIG_ARM
- set_irq_flags(hwirq, IRQF_VALID);
+ set_irq_flags(irq, IRQF_VALID);
#else
- irq_set_noprobe(hwirq);
+ irq_set_noprobe(irq);
#endif
return 0;
}
-static void stmpe_gpio_irq_unmap(struct irq_domain *d, unsigned int virq)
+static void stmpe_gpio_irq_unmap(struct irq_domain *d, unsigned int irq)
{
#ifdef CONFIG_ARM
- set_irq_flags(virq, 0);
+ set_irq_flags(irq, 0);
#endif
- irq_set_chip_and_handler(virq, NULL, NULL);
- irq_set_chip_data(virq, NULL);
+ irq_set_chip_and_handler(irq, NULL, NULL);
+ irq_set_chip_data(irq, NULL);
}
static const struct irq_domain_ops stmpe_gpio_irq_simple_ops = {