diff options
| author | Pawel Laszczak <pawell@cadence.com> | 2025-06-20 08:23:12 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-07-10 16:08:51 +0200 |
| commit | efbd9f11634c89abb8c0560f3bea17cda6bb064f (patch) | |
| tree | 6d1dfa115a927291de8c174f72a0270d8121058d /drivers/usb/cdns3/cdnsp-ring.c | |
| parent | 03260c89babbd37291e7a14ad578631f2fc61ec5 (diff) | |
usb: cdnsp: Fix issue with CV Bad Descriptor test
commit 2831a81077f5162f104ba5a97a7d886eb371c21c upstream.
The SSP2 controller has extra endpoint state preserve bit (ESP) which
setting causes that endpoint state will be preserved during
Halt Endpoint command. It is used only for EP0.
Without this bit the Command Verifier "TD 9.10 Bad Descriptor Test"
failed.
Setting this bit doesn't have any impact for SSP controller.
Fixes: 3d82904559f4 ("usb: cdnsp: cdns3 Add main part of Cadence USBSSP DRD Driver")
Cc: stable <stable@kernel.org>
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Acked-by: Peter Chen <peter.chen@kernel.org>
Link: https://lore.kernel.org/r/PH7PR07MB95382CCD50549DABAEFD6156DD7CA@PH7PR07MB9538.namprd07.prod.outlook.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/cdns3/cdnsp-ring.c')
| -rw-r--r-- | drivers/usb/cdns3/cdnsp-ring.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/cdns3/cdnsp-ring.c b/drivers/usb/cdns3/cdnsp-ring.c index 757fdd918286d..0758f171f73ec 100644 --- a/drivers/usb/cdns3/cdnsp-ring.c +++ b/drivers/usb/cdns3/cdnsp-ring.c @@ -2485,7 +2485,8 @@ void cdnsp_queue_halt_endpoint(struct cdnsp_device *pdev, unsigned int ep_index) { cdnsp_queue_command(pdev, 0, 0, 0, TRB_TYPE(TRB_HALT_ENDPOINT) | SLOT_ID_FOR_TRB(pdev->slot_id) | - EP_ID_FOR_TRB(ep_index)); + EP_ID_FOR_TRB(ep_index) | + (!ep_index ? TRB_ESP : 0)); } void cdnsp_force_header_wakeup(struct cdnsp_device *pdev, int intf_num) |