Commit 13de9cca514e ("HID: cp2112: add IRQ chip handling") has introduced
cp2112_allocate_irq() that seems to be unused since 2016.
Remove it, remove the associated resources and part of the remove()
function that frees the resources allocated in cp2112_allocate_irq().
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
Compile tested only.
Maybe the issue is completely elsewhere and the probe() should call
cp2112_allocate_irq() in some cases.
---
drivers/hid/hid-cp2112.c | 52 ----------------------------------------
1 file changed, 52 deletions(-)
diff --git a/drivers/hid/hid-cp2112.c b/drivers/hid/hid-cp2112.c
index 1e16b0fa310d..67a5ac6be922 100644
--- a/drivers/hid/hid-cp2112.c
+++ b/drivers/hid/hid-cp2112.c
@@ -167,7 +167,6 @@ struct cp2112_device {
u8 *in_out_buffer;
struct mutex lock;
- struct gpio_desc *desc[8];
bool gpio_poll;
struct delayed_work gpio_poll_worker;
unsigned long irq_mask;
@@ -1183,51 +1182,6 @@ static int cp2112_gpio_irq_type(struct irq_data *d, unsigned int type)
return 0;
}
-static int __maybe_unused cp2112_allocate_irq(struct cp2112_device *dev,
- int pin)
-{
- int ret;
-
- if (dev->desc[pin])
- return -EINVAL;
-
- dev->desc[pin] = gpiochip_request_own_desc(&dev->gc, pin,
- "HID/I2C:Event",
- GPIO_ACTIVE_HIGH,
- GPIOD_IN);
- if (IS_ERR(dev->desc[pin])) {
- dev_err(dev->gc.parent, "Failed to request GPIO\n");
- return PTR_ERR(dev->desc[pin]);
- }
-
- ret = cp2112_gpio_direction_input(&dev->gc, pin);
- if (ret < 0) {
- dev_err(dev->gc.parent, "Failed to set GPIO to input dir\n");
- goto err_desc;
- }
-
- ret = gpiochip_lock_as_irq(&dev->gc, pin);
- if (ret) {
- dev_err(dev->gc.parent, "Failed to lock GPIO as interrupt\n");
- goto err_desc;
- }
-
- ret = gpiod_to_irq(dev->desc[pin]);
- if (ret < 0) {
- dev_err(dev->gc.parent, "Failed to translate GPIO to IRQ\n");
- goto err_lock;
- }
-
- return ret;
-
-err_lock:
- gpiochip_unlock_as_irq(&dev->gc, pin);
-err_desc:
- gpiochip_free_own_desc(dev->desc[pin]);
- dev->desc[pin] = NULL;
- return ret;
-}
-
static int cp2112_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct cp2112_device *dev;
@@ -1388,7 +1342,6 @@ static int cp2112_probe(struct hid_device *hdev, const struct hid_device_id *id)
static void cp2112_remove(struct hid_device *hdev)
{
struct cp2112_device *dev = hid_get_drvdata(hdev);
- int i;
sysfs_remove_group(&hdev->dev.kobj, &cp2112_attr_group);
i2c_del_adapter(&dev->adap);
@@ -1398,11 +1351,6 @@ static void cp2112_remove(struct hid_device *hdev)
cancel_delayed_work_sync(&dev->gpio_poll_worker);
}
- for (i = 0; i < ARRAY_SIZE(dev->desc); i++) {
- gpiochip_unlock_as_irq(&dev->gc, i);
- gpiochip_free_own_desc(dev->desc[i]);
- }
-
gpiochip_remove(&dev->gc);
/* i2c_del_adapter has finished removing all i2c devices from our
* adapter. Well behaved devices should no longer call our cp2112_xfer
--
2.34.1
