pinctrl: baytrail: Register GPIO chip after chip->to_irq is set

If chip->to_irq is NULL ACPI GPIO helpers don't register GPIO event
handlers thus preventing any ACPI GPIO triggered events. Solve this by
calling gpiochip_add() after we have set up drivers chip->to_irq hook.

Signed-off-by: Jin Yao <yao.jin@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 6 insertions, 6 deletions

diff --git a/drivers/pinctrl/pinctrl-baytrail.c b/drivers/pinctrl/pinctrl-baytrail.c
index 447f1dc25ea6..7c65c9dab215 100644
--- a/drivers/pinctrl/pinctrl-baytrail.c
+++ b/drivers/pinctrl/pinctrl-baytrail.c
@@ -527,12 +527,6 @@ static int byt_gpio_probe(struct platform_device *pdev)
         gc->can_sleep = false;
         gc->dev = dev;
 
-        ret = gpiochip_add(gc);
-        if (ret) {
-                dev_err(&pdev->dev, "failed adding byt-gpio chip\n");
-                return ret;
-        }
-
         /* set up interrupts  */
         irq_rc = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
         if (irq_rc && irq_rc->start) {
@@ -550,6 +544,12 @@ static int byt_gpio_probe(struct platform_device *pdev)
                 irq_set_chained_handler(hwirq, byt_gpio_irq_handler);
         }
 
+        ret = gpiochip_add(gc);
+        if (ret) {
+                dev_err(&pdev->dev, "failed adding byt-gpio chip\n");
+                return ret;
+        }
+
         pm_runtime_enable(dev);
 
         return 0;