This patch allows to probe stm32 pinctrl driver even if no interrupt
controller is defined to manage gpio irqs.

Signed-off-by: Alexandre TORGUE <[email protected]>

diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c 
b/drivers/pinctrl/stm32/pinctrl-stm32.c
index 200667f..efc4371 100644
--- a/drivers/pinctrl/stm32/pinctrl-stm32.c
+++ b/drivers/pinctrl/stm32/pinctrl-stm32.c
@@ -1092,9 +1092,11 @@ int stm32_pctl_probe(struct platform_device *pdev)
                return -EINVAL;
        }
 
-       ret = stm32_pctrl_dt_setup_irq(pdev, pctl);
-       if (ret)
-               return ret;
+       if (of_find_property(np, "interrupt-parent", NULL)) {
+               ret = stm32_pctrl_dt_setup_irq(pdev, pctl);
+               if (ret)
+                       return ret;
+       }
 
        for_each_child_of_node(np, child)
                if (of_property_read_bool(child, "gpio-controller"))
-- 
1.9.1

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