[PATCH pinctrl REGRESSION] Revert "pinctrl: mvebu: armada-37xx: use use platform api"

[Marek Behún <marek.behun@xxxxxx>]

This reverts commit 06e26b75f5e613b400116fdb7ff6206a681ab271.

This commit caused a regression on Armada 37xx. The pinctrl driver says
  armada-37xx-pinctrl d0013800.pinctrl: invalid or no IRQ
  armada-37xx-pinctrl d0018800.pinctrl: invalid or no IRQ
and afterwards other drivers cannot use GPIOs by this driver as IRQs.

Fixes: 06e26b75f5e6 ("pinctrl: mvebu: armada-37xx: use use platform...")
Signed-off-by: Marek Behún <marek.behun@xxxxxx>
Cc: Peng Fan <peng.fan@xxxxxxx>
---
 drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
index 32f12a388b3c..5f125bd6279d 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
@@ -15,6 +15,7 @@
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_device.h>
+#include <linux/of_irq.h>
 #include <linux/pinctrl/pinconf-generic.h>
 #include <linux/pinctrl/pinconf.h>
 #include <linux/pinctrl/pinctrl.h>
@@ -741,14 +742,7 @@ static int armada_37xx_irqchip_register(struct platform_device *pdev,
 		return ret;
 	}
 
-	nr_irq_parent = platform_irq_count(pdev);
-	if (nr_irq_parent < 0) {
-		if (nr_irq_parent != -EPROBE_DEFER)
-			dev_err(dev, "Couldn't determine irq count: %pe\n",
-				ERR_PTR(nr_irq_parent));
-		return nr_irq_parent;
-	}
-
+	nr_irq_parent = of_irq_count(np);
 	spin_lock_init(&info->irq_lock);
 
 	if (!nr_irq_parent) {
@@ -785,7 +779,7 @@ static int armada_37xx_irqchip_register(struct platform_device *pdev,
 	if (!girq->parents)
 		return -ENOMEM;
 	for (i = 0; i < nr_irq_parent; i++) {
-		int irq = platform_get_irq(pdev, i);
+		int irq = irq_of_parse_and_map(np, i);
 
 		if (irq < 0)
 			continue;
-- 
2.24.1