diff options
| author | Thinh Nguyen <Thinh.Nguyen@synopsys.com> | 2021-04-23 02:51:43 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-23 14:05:15 +0300 |
| commit | ddae7979cdd5ed417f2b3ebdc5742e2a600b5ad5 (patch) | |
| tree | aec4afb10c70e365205774de379da46f4ff05840 /drivers/usb/dwc3/core.h | |
| parent | 16710380d3aa8f91411eb216352c4be4bc7af799 (diff) | |
| download | linux-ddae7979cdd5ed417f2b3ebdc5742e2a600b5ad5.tar.xz | |
usb: dwc3: gadget: Handle DEV_TXF_FLUSH_BYPASS capability
DWC_usb32 IP introduces a new behavior when handling NoStream event for
IN endpoints. If the controller is capable of DEV_TXF_FLUSH_BYPASS, then
the driver does not need to force to restart stream for IN endpoints.
The controller will generate ERDY and restart the stream periodically.
Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/65c3070c666cd6b8beeee62d7f8e3e704ebf2d32.1619134559.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/dwc3/core.h')
| -rw-r--r-- | drivers/usb/dwc3/core.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index b678200cc51e..b1e875c58f20 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -379,6 +379,9 @@ #define DWC3_GHWPARAMS7_RAM1_DEPTH(n) ((n) & 0xffff) #define DWC3_GHWPARAMS7_RAM2_DEPTH(n) (((n) >> 16) & 0xffff) +/* Global HWPARAMS9 Register */ +#define DWC3_GHWPARAMS9_DEV_TXF_FLUSH_BYPASS BIT(0) + /* Global Frame Length Adjustment Register */ #define DWC3_GFLADJ_30MHZ_SDBND_SEL BIT(7) #define DWC3_GFLADJ_30MHZ_MASK 0x3f |