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path: root/drivers/pinctrl/sh-pfc/gpio.c
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Diffstat (limited to 'drivers/pinctrl/sh-pfc/gpio.c')
-rw-r--r--drivers/pinctrl/sh-pfc/gpio.c24
1 files changed, 18 insertions, 6 deletions
diff --git a/drivers/pinctrl/sh-pfc/gpio.c b/drivers/pinctrl/sh-pfc/gpio.c
index 04bf52b64fb..a9288ab01f7 100644
--- a/drivers/pinctrl/sh-pfc/gpio.c
+++ b/drivers/pinctrl/sh-pfc/gpio.c
@@ -204,18 +204,24 @@ static void gpio_pin_set(struct gpio_chip *gc, unsigned offset, int value)
static int gpio_pin_to_irq(struct gpio_chip *gc, unsigned offset)
{
struct sh_pfc *pfc = gpio_to_pfc(gc);
- int i, k;
+ unsigned int i, k;
for (i = 0; i < pfc->info->gpio_irq_size; i++) {
- unsigned short *gpios = pfc->info->gpio_irq[i].gpios;
+ const short *gpios = pfc->info->gpio_irq[i].gpios;
- for (k = 0; gpios[k]; k++) {
+ for (k = 0; gpios[k] >= 0; k++) {
if (gpios[k] == offset)
- return pfc->info->gpio_irq[i].irq;
+ goto found;
}
}
return -ENOSYS;
+
+found:
+ if (pfc->num_irqs)
+ return pfc->irqs[i];
+ else
+ return pfc->info->gpio_irq[i].irq;
}
static int gpio_pin_setup(struct sh_pfc_chip *chip)
@@ -347,7 +353,7 @@ int sh_pfc_register_gpiochip(struct sh_pfc *pfc)
* GPIOs.
*/
for (i = 0; i < pfc->num_windows; ++i) {
- struct sh_pfc_window *window = &pfc->window[i];
+ struct sh_pfc_window *window = &pfc->windows[i];
if (pfc->info->data_regs[0].reg >= window->phys &&
pfc->info->data_regs[0].reg < window->phys + window->size)
@@ -357,8 +363,14 @@ int sh_pfc_register_gpiochip(struct sh_pfc *pfc)
if (i == pfc->num_windows)
return 0;
+ /* If we have IRQ resources make sure their number is correct. */
+ if (pfc->num_irqs && pfc->num_irqs != pfc->info->gpio_irq_size) {
+ dev_err(pfc->dev, "invalid number of IRQ resources\n");
+ return -EINVAL;
+ }
+
/* Register the real GPIOs chip. */
- chip = sh_pfc_add_gpiochip(pfc, gpio_pin_setup, &pfc->window[i]);
+ chip = sh_pfc_add_gpiochip(pfc, gpio_pin_setup, &pfc->windows[i]);
if (IS_ERR(chip))
return PTR_ERR(chip);