Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
authored by
Andy Shevchenko
and committed by
Lee Jones
99a7ec2f
7e47943c
+4
-13
+4
-13
drivers/mfd/dln2.c
+4
-13
drivers/mfd/dln2.c
···
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spinlock_t lock;
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};
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-
enum dln2_endpoint {
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DLN2_EP_OUT = 0,
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DLN2_EP_IN = 1,
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};
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-
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struct dln2_dev {
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struct usb_device *usb_dev;
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struct usb_interface *interface;
···
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int ret;
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int i, j;
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-
if (hostif->desc.bInterfaceNumber != 0 ||
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hostif->desc.bNumEndpoints < 2)
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+
if (hostif->desc.bInterfaceNumber != 0)
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return -ENODEV;
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epout = &hostif->endpoint[DLN2_EP_OUT].desc;
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if (!usb_endpoint_is_bulk_out(epout))
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return -ENODEV;
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epin = &hostif->endpoint[DLN2_EP_IN].desc;
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-
if (!usb_endpoint_is_bulk_in(epin))
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return -ENODEV;
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+
ret = usb_find_common_endpoints(hostif, &epin, &epout, NULL, NULL);
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+
if (ret)
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+
return ret;
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dln2 = kzalloc(sizeof(*dln2), GFP_KERNEL);
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if (!dln2)