projects / platform / kernel / linux-starfive.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 49e0590) | patch
usb: gadget: udc: atmel: Fix vbus disconnect handling
authorCristian Birsan <cristian.birsan@microchip.com>
Fri, 10 Apr 2020 12:14:52 +0000 (15:14 +0300)
committerFelipe Balbi <balbi@kernel.org>
Fri, 17 Apr 2020 08:55:29 +0000 (11:55 +0300)
commit12b94da411f9c6d950beb067d913024fd5617a61
treecfca70a2335b15ce24b49d977d20364cd7e89a21tree | snapshot
parent49e0590e3a60e75b493e5df879e216e5073c7663commit | diff
usb: gadget: udc: atmel: Fix vbus disconnect handling

A DMA transfer can be in progress while vbus is lost due to a cable
disconnect. For endpoints that use DMA, this condition can lead to
peripheral hang. The patch ensures that endpoints are disabled before
the clocks are stopped to prevent this issue.

Fixes: a64ef71ddc13 ("usb: gadget: atmel_usba_udc: condition clocks to vbus state")
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
drivers/usb/gadget/udc/atmel_usba_udc.c diff | blob | history
Domain: System / Kernel;