gpio: omap: switch to use platform_get_irq

Switch OMAP GPIO driver to use platform_get_irq(), because
it is not recommened to use platform_get_resource(pdev, IORESOURCE_IRQ, ..)
for requesting IRQ resources any more, as they can be not ready yet
in case of DT-boot.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 8 insertions, 5 deletions

diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index f38b01b5869c..03fd111e2d17 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -1178,13 +1178,16 @@ static int omap_gpio_probe(struct platform_device *pdev)
         irqc->irq_set_wake = omap_gpio_wake_enable,
         irqc->name = dev_name(&pdev->dev);
 
-        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-        if (unlikely(!res)) {
-                dev_err(dev, "Invalid IRQ resource\n");
-                return -ENODEV;
+        bank->irq = platform_get_irq(pdev, 0);
+        if (bank->irq <= 0) {
+                if (!bank->irq)
+                        bank->irq = -ENXIO;
+                if (bank->irq != -EPROBE_DEFER)
+                        dev_err(dev,
+                                "can't get irq resource ret=%d\n", bank->irq);
+                return bank->irq;
         }
 
-        bank->irq = res->start;
         bank->dev = dev;
         bank->chip.dev = dev;
         bank->chip.owner = THIS_MODULE;