diff options
| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2025-08-06 10:08:54 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2025-08-06 10:08:54 -0700 |
| commit | ab93e0dd72c37d378dd936f031ffb83ff2bd87ce (patch) | |
| tree | 4e5ed022e3c48cedd519954e4fb529dac0240c94 /drivers/usb/cdns3/cdnsp-gadget.c | |
| parent | bcce05041b21888f10b80ea903dcfe51a25c586e (diff) | |
| parent | 4f67c41894674d351a4b4e7dd3471380b71b5bb3 (diff) | |
Merge branch 'next' into for-linus
Prepare input updates for 6.17 merge window.
Diffstat (limited to 'drivers/usb/cdns3/cdnsp-gadget.c')
| -rw-r--r-- | drivers/usb/cdns3/cdnsp-gadget.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/usb/cdns3/cdnsp-gadget.c b/drivers/usb/cdns3/cdnsp-gadget.c index 4824a10df07e..55f95f41b3b4 100644 --- a/drivers/usb/cdns3/cdnsp-gadget.c +++ b/drivers/usb/cdns3/cdnsp-gadget.c @@ -29,7 +29,8 @@ unsigned int cdnsp_port_speed(unsigned int port_status) { /*Detect gadget speed based on PORTSC register*/ - if (DEV_SUPERSPEEDPLUS(port_status)) + if (DEV_SUPERSPEEDPLUS(port_status) || + DEV_SSP_GEN1x2(port_status) || DEV_SSP_GEN2x2(port_status)) return USB_SPEED_SUPER_PLUS; else if (DEV_SUPERSPEED(port_status)) return USB_SPEED_SUPER; @@ -547,6 +548,7 @@ int cdnsp_wait_for_cmd_compl(struct cdnsp_device *pdev) dma_addr_t cmd_deq_dma; union cdnsp_trb *event; u32 cycle_state; + u32 retry = 10; int ret, val; u64 cmd_dma; u32 flags; @@ -578,8 +580,23 @@ int cdnsp_wait_for_cmd_compl(struct cdnsp_device *pdev) flags = le32_to_cpu(event->event_cmd.flags); /* Check the owner of the TRB. */ - if ((flags & TRB_CYCLE) != cycle_state) + if ((flags & TRB_CYCLE) != cycle_state) { + /* + * Give some extra time to get chance controller + * to finish command before returning error code. + * Checking CMD_RING_BUSY is not sufficient because + * this bit is cleared to '0' when the Command + * Descriptor has been executed by controller + * and not when command completion event has + * be added to event ring. + */ + if (retry--) { + udelay(20); + continue; + } + return -EINVAL; + } cmd_dma = le64_to_cpu(event->event_cmd.cmd_trb); |