linux/drivers/usb/dwc2
Robert Baldyga 6b448af46e drivers: usb: dwc2: remove 'force' parameter from kill_all_requests()
This patch fixes in simpler way the bug described in [1] and [2]. It
looks like DWC2 is the only UDC driver that doesn't force usb requests
to complete in ep_disable() function. This causes described problem,
because we have no guarantee that all requests will be completed before
unbind of usb function.

To fix this problem we force all requests of disabled endpoint to complete.
Also currently running request is not handled. This allowed to simplify
code of kill_all_requests() function, because 'force' parameter is always
set to true, so we don't need it anymore.

In s3c_hsotg_rx_data() we change function used to print message when active
request is NULL from dev_warn() to dev_dbg(), because such situation is
harmless for driver and now it can take place during normal endpoint
disabling.

[1] https://lkml.org/lkml/2014/12/9/283
[2] https://lkml.org/lkml/2014/12/12/360

Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-01-12 12:13:28 -06:00
..
Kconfig usb: dwc2: Update Kconfig to support dual-role 2014-11-14 15:00:07 -06:00
Makefile usb: dwc2: Update Kconfig to support dual-role 2014-11-14 15:00:07 -06:00
core.c usb: dwc2: Fixed a few typos in comments 2015-01-12 12:13:24 -06:00
core.h usb: dwc2: Fixed a few typos in comments 2015-01-12 12:13:24 -06:00
core_intr.c usb: dwc2: gadget: rework disconnect event handling 2014-11-21 09:07:34 -06:00
gadget.c drivers: usb: dwc2: remove 'force' parameter from kill_all_requests() 2015-01-12 12:13:28 -06:00
hcd.c usb: dwc2: move usb_disabled() call to host driver only 2014-11-14 15:00:03 -06:00
hcd.h usb: dwc2: Move gadget probe function into platform code 2014-11-14 14:59:32 -06:00
hcd_ddma.c
hcd_intr.c usb: dwc2: handle DMA buffer unmapping sanely 2014-09-19 16:17:58 -07:00
hcd_queue.c usb: dwc2: handle DMA buffer unmapping sanely 2014-09-19 16:17:58 -07:00
hw.h usb: dwc2: add defines to support s3c-hsotg driver 2014-04-24 13:12:43 -07:00
pci.c usb: dwc2: Update common interrupt handler to call gadget interrupt handler 2014-11-14 14:59:48 -06:00
platform.c usb: dwc2: platform: add generic PHY framework support 2015-01-12 12:13:26 -06:00