usb: renesas_usbhs: Use dmac only if the pipe type is bulk

Browse source

commit 700aa7ff8d upstream.

This patch fixes an issue that isochronous transfer's data is possible to
be lost as a workaround. Since this driver uses a workqueue to start
the dmac, the transfer is possible to be delayed when system load is high.

Fixes: 6e4b74e469 ("usb: renesas: fix scheduling in atomic context bug")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Yoshihiro Shimoda 2016-08-08 21:50:53 +09:00 • committed by Greg Kroah-Hartman

parent b8032e6952

commit 365a5f484c

1 changed files with 2 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

4

drivers/usb/renesas_usbhs/fifo.c

View file