[PATCH] HID: cp2112: Use irqchip template

[PATCH] HID: cp2112: Use irqchip template

[Linus Walleij]

This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit calls to gpiochip_irqchip_add(). The irqchip is
instead added while adding the gpiochip.

Cc: Eudean Sun <eudean@arista.com>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/hid/hid-cp2112.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/hid/hid-cp2112.c b/drivers/hid/hid-cp2112.c
index db1b55df0d13..222340e27e5f 100644
--- a/drivers/hid/hid-cp2112.c
+++ b/drivers/hid/hid-cp2112.c
@@ -1235,6 +1235,7 @@ static int cp2112_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	struct cp2112_device *dev;
 	u8 buf[3];
 	struct cp2112_smbus_config_report config;
+	struct gpio_irq_chip *girq;
 	int ret;
 
 	dev = devm_kzalloc(&hdev->dev, sizeof(*dev), GFP_KERNEL);
@@ -1338,6 +1339,15 @@ static int cp2112_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	dev->gc.can_sleep		= 1;
 	dev->gc.parent			= &hdev->dev;
 
+	girq = &dev->gc.irq;
+	girq->chip = &cp2112_gpio_irqchip;
+	/* The event comes from the outside so no parent handler */
+	girq->parent_handler = NULL;
+	girq->num_parents = 0;
+	girq->parents = NULL;
+	girq->default_type = IRQ_TYPE_NONE;
+	girq->handler = handle_simple_irq;
+
 	ret = gpiochip_add_data(&dev->gc, dev);
 	if (ret < 0) {
 		hid_err(hdev, "error registering gpio chip\n");
@@ -1353,17 +1363,8 @@ static int cp2112_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	chmod_sysfs_attrs(hdev);
 	hid_hw_power(hdev, PM_HINT_NORMAL);
 
-	ret = gpiochip_irqchip_add(&dev->gc, &cp2112_gpio_irqchip, 0,
-				   handle_simple_irq, IRQ_TYPE_NONE);
-	if (ret) {
-		dev_err(dev->gc.parent, "failed to add IRQ chip\n");
-		goto err_sysfs_remove;
-	}
-
 	return ret;
 
-err_sysfs_remove:
-	sysfs_remove_group(&hdev->dev.kobj, &cp2112_attr_group);
 err_gpiochip_remove:
 	gpiochip_remove(&dev->gc);
 err_free_i2c:
-- 
2.26.2

Re: [PATCH] HID: cp2112: Use irqchip template

[Jiri Kosina]

On Wed, 22 Jul 2020, Linus Walleij wrote:

> This makes the driver use the irqchip template to assign
> properties to the gpio_irq_chip instead of using the
> explicit calls to gpiochip_irqchip_add(). The irqchip is
> instead added while adding the gpiochip.
> 
> Cc: Eudean Sun <eudean@arista.com>
> Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
> Cc: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Applied, thanks.

-- 
Jiri Kosina
SUSE Labs