platform: use fwnode_irq_get_byname instead of of_irq_get_byname to get irq

Not only platform devices described by OF have named interrupts, but
devices described by ACPI also have named interrupts. The fwnode is an
abstraction to different standards, and using fwnode_irq_get_byname can
support more devices.

Signed-off-by: Soha Jin <soha@lohu.info>
Tested-by: Wende Tan <twd2.me@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 51bb2289865c7222c0a2d1d6f4e8ad02225f9105..968f3d71eeab2e9fe5cdf552908c79bd4cdad580 100644 (file)
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -441,8 +441,8 @@ static int __platform_get_irq_byname(struct platform_device *dev,
        struct resource *r;
        int ret;
 
-       if (IS_ENABLED(CONFIG_OF_IRQ) && dev->dev.of_node) {
-               ret = of_irq_get_byname(dev->dev.of_node, name);
+       if (!dev->dev.of_node || IS_ENABLED(CONFIG_OF_IRQ)) {
+               ret = fwnode_irq_get_byname(dev_fwnode(&dev->dev), name);
                if (ret > 0 || ret == -EPROBE_DEFER)
                        return ret;
        }