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mfd: dln2: Automatically detect and fill endpoint pointers 

The usb_find_common_endpoints() finds and fills the endpoints
in accordance with their types. Use it to automatically detect
and fill endpoint pointers.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220617182338.32402-1-andriy.shevchenko@linux.intel.com
This commit is contained in:
Andy Shevchenko 2022-06-17 21:23:38 +03:00 committed by Lee Jones
parent 7e47943c33
commit 99a7ec2f36
1 changed files with 4 additions and 13 deletions
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17
drivers/mfd/dln2.c
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@ -91,11 +91,6 @@ struct dln2_mod_rx_slots {
spinlock_t lock;
};
enum dln2_endpoint {
DLN2_EP_OUT = 0,
DLN2_EP_IN = 1,
};
struct dln2_dev {
struct usb_device *usb_dev;
struct usb_interface *interface;
@ -777,16 +772,12 @@ static int dln2_probe(struct usb_interface *interface,
int ret;
int i, j;
if (hostif->desc.bInterfaceNumber != 0 ||
hostif->desc.bNumEndpoints < 2)
if (hostif->desc.bInterfaceNumber != 0)
return -ENODEV;
epout = &hostif->endpoint[DLN2_EP_OUT].desc;
if (!usb_endpoint_is_bulk_out(epout))
return -ENODEV;
epin = &hostif->endpoint[DLN2_EP_IN].desc;
if (!usb_endpoint_is_bulk_in(epin))
return -ENODEV;
ret = usb_find_common_endpoints(hostif, &epin, &epout, NULL, NULL);
if (ret)
return ret;
dln2 = kzalloc(sizeof(*dln2), GFP_KERNEL);
if (!dln2)