From 2831a81077f5162f104ba5a97a7d886eb371c21c Mon Sep 17 00:00:00 2001 From: Pawel Laszczak Date: Fri, 20 Jun 2025 08:23:12 +0000 Subject: usb: cdnsp: Fix issue with CV Bad Descriptor test 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 Signed-off-by: Pawel Laszczak Acked-by: Peter Chen Link: https://lore.kernel.org/r/PH7PR07MB95382CCD50549DABAEFD6156DD7CA@PH7PR07MB9538.namprd07.prod.outlook.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/cdns3/cdnsp-ring.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/usb/cdns3/cdnsp-ring.c') diff --git a/drivers/usb/cdns3/cdnsp-ring.c b/drivers/usb/cdns3/cdnsp-ring.c index 757fdd918286..0758f171f73e 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) -- cgit v1.2.3