[PATCH v2] pinctrl: intel: baytrail: Pass irqchip when adding gpiochip

[Linus Walleij <linus.walleij@linaro.org>]

We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.

For chained irqchips this is a pretty straight-forward
conversion.

Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
ChangeLog v1->v2:
- Rebase on v5.4-rc1
---
 drivers/pinctrl/intel/pinctrl-baytrail.c | 38 ++++++++++++++----------
 1 file changed, 22 insertions(+), 16 deletions(-)

diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c
index 9ffb22211d2b..64a59fc08b63 100644
--- a/drivers/pinctrl/intel/pinctrl-baytrail.c
+++ b/drivers/pinctrl/intel/pinctrl-baytrail.c
@@ -1528,6 +1528,28 @@ static int byt_gpio_probe(struct byt_gpio *vg)
 	if (!vg->saved_context)
 		return -ENOMEM;
 #endif
+
+	/* set up interrupts  */
+	irq_rc = platform_get_resource(vg->pdev, IORESOURCE_IRQ, 0);
+	if (irq_rc && irq_rc->start) {
+		struct gpio_irq_chip *girq;
+
+		byt_gpio_irq_init_hw(vg);
+
+		girq = &gc->irq;
+		girq->chip = &byt_irqchip;
+		girq->parent_handler = byt_gpio_irq_handler;
+		girq->num_parents = 1;
+		girq->parents = devm_kcalloc(&vg->pdev->dev, 1,
+					     sizeof(*girq->parents),
+					     GFP_KERNEL);
+		if (!girq->parents)
+			return -ENOMEM;
+		girq->parents[0] = (unsigned int)irq_rc->start;
+		girq->default_type = IRQ_TYPE_NONE;
+		girq->handler = handle_bad_irq;
+	}
+
 	ret = devm_gpiochip_add_data(&vg->pdev->dev, gc, vg);
 	if (ret) {
 		dev_err(&vg->pdev->dev, "failed adding byt-gpio chip\n");
@@ -1541,22 +1563,6 @@ static int byt_gpio_probe(struct byt_gpio *vg)
 		return ret;
 	}
 
-	/* set up interrupts  */
-	irq_rc = platform_get_resource(vg->pdev, IORESOURCE_IRQ, 0);
-	if (irq_rc && irq_rc->start) {
-		byt_gpio_irq_init_hw(vg);
-		ret = gpiochip_irqchip_add(gc, &byt_irqchip, 0,
-					   handle_bad_irq, IRQ_TYPE_NONE);
-		if (ret) {
-			dev_err(&vg->pdev->dev, "failed to add irqchip\n");
-			return ret;
-		}
-
-		gpiochip_set_chained_irqchip(gc, &byt_irqchip,
-					     (unsigned)irq_rc->start,
-					     byt_gpio_irq_handler);
-	}
-
 	return ret;
 }
 
-- 
2.21.0