diff options
| author | John Keeping <john@metanate.com> | 2022-01-06 11:57:31 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-06 15:28:12 +0100 |
| commit | 92ef98a4caacad6d4a1490dda45d81ae5ccf5bc9 (patch) | |
| tree | 104a42eddd33e170dc31243d589094aeb3edb46c /include/linux/fpga/fpga-mgr.h | |
| parent | 34146c68083f1aef6709196b3dc888c1ceffd357 (diff) | |
usb: dwc2: gadget: initialize max_speed from params
DWC2 may be paired with a full-speed PHY which is not capable of
high-speed operation. Report this correctly to the gadget core by
setting max_speed from the core parameters.
Prior to commit 5324bad66f09f ("usb: dwc2: gadget: implement
udc_set_speed()") this didn't cause the hardware to be configured
incorrectly, although the speed may have been reported incorrectly. But
after that commit params.speed is updated based on a value passed in by
the gadget core which may set it to a faster speed than is supported by
the hardware. Initialising the max_speed parameter ensures the speed
passed to dwc2_gadget_set_speed() will be one supported by the hardware.
Fixes: 5324bad66f09f ("usb: dwc2: gadget: implement udc_set_speed()")
Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: John Keeping <john@metanate.com>
Link: https://lore.kernel.org/r/20220106115731.1473909-1-john@metanate.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/fpga/fpga-mgr.h')
0 files changed, 0 insertions, 0 deletions