kernel/git/stable/linux.git/drivers/usb/cdns3, branch master

Merge 7.2-rc7 into usb-next

2026-08-14T01:17:11+00:00

We need the USB fixes in here as well to build on top of. Signed-off-by: Greg Kroah-Hartman

usb: cdnsp: fix incorrect endian conversions for APB timeout register

2026-08-03T15:23:47+00:00

readl() already returns a CPU-endian value. Passing its return value to le32_to_cpu() is therefore redundant and causes an incorrect double byte swap on big-endian systems. Similarly, writel() expects a CPU-endian value, so passing the result of cpu_to_le32() is incorrect. Remove the unnecessary conversions and operate on the MMIO register value as a CPU-endian u32. Fixes: 241e2ce88e5a ("usb: cdnsp: Fix issue with resuming from L1") Suggested-by: Arnd Bergmann Cc: stable Signed-off-by: Pawel Laszczak Acked-by: Arnd Bergmann Link: https://patch.msgid.link/20260720-endian-fix-v1-v1-1-b5681fa1ea9f@cadence.com Signed-off-by: Greg Kroah-Hartman

Merge 7.2-rc3 into usb-next

2026-07-13T05:09:28+00:00

We need the USB fixes in here as well to build on top of. Signed-off-by: Greg Kroah-Hartman

usb: cdns3: plat: fix a typo in cdns3_plat_probe()

2026-07-08T12:15:36+00:00

Fixes typos in dev_err_probe(): 'cdn3,usb*-phy' -> 'cdns3,usb*-phy'. Signed-off-by: Ihor Matushchak Acked-by: Peter Chen Link: https://patch.msgid.link/20260703120136.19852-1-ihor.matushchak@foobox.net Signed-off-by: Greg Kroah-Hartman

usb: cdnsp: fix stream context array leak in cdnsp_alloc_stream_info()

2026-06-25T14:12:15+00:00

cdnsp_alloc_stream_info() allocates stream_info->stream_ctx_array with cdnsp_alloc_stream_ctx(). If a later stream ring allocation or stream mapping update fails, the error path frees the allocated stream rings and stream_rings array, but leaves stream_ctx_array allocated. Free the stream context array before falling through to the stream_rings cleanup path. Fixes: 3d82904559f4 ("usb: cdnsp: cdns3 Add main part of Cadence USBSSP DRD Driver") Cc: stable Signed-off-by: Haoxiang Li Acked-by: Peter Chen Link: https://patch.msgid.link/20260622052627.696373-1-haoxiang_li2024@163.com Signed-off-by: Greg Kroah-Hartman

Merge tag 'v7.1-rc6' into usb-next

2026-06-01T15:39:51+00:00

We need the USB and Thunderbolt fixes in here as well. Signed-off-by: Greg Kroah-Hartman

usb: cdnsp: Add support for device-only configuration

2026-05-22T09:36:05+00:00

This patch introduces support for the Cadence USBSSP (cdnsp) controller in hardware configurations where the Dual-Role Device (DRD) register block is not implemented or is inaccessible. In such cases, the driver cannot rely on the DRD logic to manage roles and must operate exclusively in a fixed peripheral/host mode. The change in BAR indexing (from BAR 2 to BAR 1) is a direct consequence of the 32-bit addressing used in this specific DRD-disabled hardware layout, compared to the 64-bit addressing used in DRD-enabled configurations. Tested on a PCI platform with a hardware configuration that lacks DRD support. Platform-side changes are included to support the PCI glue layer's property injection to handle this specific layout. Acked-by: Peter Chen Acked-by: Bjorn Helgaas Signed-off-by: Pawel Laszczak Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202605141023.18vWXyw3-lkp@intel.com/ Link: Closes: https://lore.kernel.org/oe-kbuild-all/202605141023.18vWXyw3-lkp@intel.com/ Link: https://patch.msgid.link/20260521-no_drd_config_v9-v9-2-2512cef10104@cadence.com Signed-off-by: Greg Kroah-Hartman

usb: cdns3: plat: fix leaked role switch on core role initialization failure

2026-05-22T09:34:44+00:00

Calling usb_role_switch_unregister if core role initialization failure. Fixes: e4d7362dc9cd ("usb: cdns3: Add USBSSP platform driver support") Reported-by: sashiko-bot Closes: https://lore.kernel.org/linux-devicetree/agKaEePSFknhDBg2@nchen-desktop/T/#m21e1d9c1574eb127ce03c0c2a1a49002ce435b52 Signed-off-by: Peter Chen Link: https://patch.msgid.link/20260514010114.2436781-2-peter.chen@cixtech.com Signed-off-by: Greg Kroah-Hartman

usb: cdns3: gadget: fix request skipping after clearing halt

2026-05-21T14:56:29+00:00

According to the cdns3 datasheet, the EPRST (Endpoint Reset) command causes the DMA engine to reposition its internal pointer to the next Transfer Descriptor (TD) if it was already processing one. This issue is consistently observed during the ADB identification process on macOS hosts, where the host issues a Clear_Halt. Although commit 4bf2dd65135a ("usb: cdns3: gadget: toggle cycle bit before reset endpoint") attempted to avoid DMA advance by toggling the cycle bit, trace logs show that on certain hosts like macOS, the DMA pointer (EP_TRADDR) still shifts after EPRST: cdns3_ctrl_req: Clear Endpoint Feature(Halt ep1out) cdns3_doorbell_epx: ep1out, ep_trbaddr f9c04030 <-- Should be f9c04000 cdns3_gadget_giveback: ep1out: req: ... length: 16384/16384 As shown above, the DMA pointer jumped to the next TD, causing the controller to skip the initial TRBs of the request. This leads to data misalignment and ADB protocol hangs on macOS. Fix this by manually restoring the EP_TRADDR register to the starting physical address of the current request after the EPRST operation is complete. Fixes: 7733f6c32e36 ("usb: cdns3: Add Cadence USB3 DRD Driver") Cc: stable Cc: Peter Chen Signed-off-by: Yongchao Wu Acked-by: Peter Chen Link: https://patch.msgid.link/20260513160012.2547894-1-yongchao.wu@autochips.com Signed-off-by: Greg Kroah-Hartman

usb: cdns3: plat: fix unbalanced pm_runtime_forbid() call permanently leaks the runtime PM usage counter across bind/unbind cycles

2026-05-21T14:56:10+00:00

Call pm_runtime_allow(dev) conditionally at cdns3_plat_remove. Fixes: f738957277ba ("usb: cdns3: Split core.c into cdns3-plat and core.c file") Cc: stable Reported-by: sashiko-bot Closes: https://lore.kernel.org/linux-devicetree/agKaEePSFknhDBg2@nchen-desktop/T/#m21e1d9c1574eb127ce03c0c2a1a49002ce435b52 Signed-off-by: Peter Chen Link: https://patch.msgid.link/20260513085310.2217547-3-peter.chen@cixtech.com Signed-off-by: Greg Kroah-Hartman