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path: root/drivers/usb/cdns3/ep0.c
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2021-08-12usb: cdns3: Fixed incorrect gadget statePawel Laszczak
commit aa35772f61752d4c636d46be51a4f7ca6c029ee6 upstream. For delayed status phase, the usb_gadget->state was set to USB_STATE_ADDRESS and it has never been updated to USB_STATE_CONFIGURED. Patch updates the gadget state to correct USB_STATE_CONFIGURED. As a result of this bug the controller was not able to enter to Test Mode while using MSC function. Cc: <stable@vger.kernel.org> Fixes: 7733f6c32e36 ("usb: cdns3: Add Cadence USB3 DRD Driver") Signed-off-by: Pawel Laszczak <pawell@cadence.com> Link: https://lore.kernel.org/r/20210623070247.46151-1-pawell@gli-login.cadence.com Signed-off-by: Peter Chen <peter.chen@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-29usb: cdns3: ep0: fix some endian issuesPeter Chen
[ Upstream commit 9f81d45c79271def8a9b90447b04b9c6323291f9 ] It is found by sparse. Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Felipe Balbi <balbi@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-30usb: cdns3: ep0: add spinlock for cdns3_check_new_setupPeter Chen
commit 2587a029fa2a877d0a8dda955ef1b24c94b4bd0e upstream. The other thread may access other endpoints when the cdns3_check_new_setup is handling, add spinlock to protect it. Cc: <stable@vger.kernel.org> Fixes: 7733f6c32e36 ("usb: cdns3: Add Cadence USB3 DRD Driver") Reviewed-by: Pawel Laszczak <pawell@cadence.com> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Felipe Balbi <balbi@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-06-30usb: cdns3: ep0: fix the test mode set incorrectlyPeter Chen
commit b51e1cf64f93acebb6d8afbacd648a6ecefc39b4 upstream. The 'tmode' is ctrl->wIndex, changing it as the real test mode value for register assignment. Cc: <stable@vger.kernel.org> Fixes: 7733f6c32e36 ("usb: cdns3: Add Cadence USB3 DRD Driver") Reviewed-by: Jun Li <jun.li@nxp.com> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Felipe Balbi <balbi@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-07usb:cdns3: Fix for CV CH9 running with g_zero driver.Pawel Laszczak
Patch fixes issue with Halt Endnpoint Test observed during using g_zero driver as DUT. Bug occurred only on some testing board. Endpoint can defer transition to Halted state if endpoint has pending requests. Patch add additional condition that allows to return correct endpoint status during Get Endpoint Status request even if the halting endpoint is in progress. Reported-by: Rahul Kumar <kurahul@cadence.com> Signed-off-by: Rahul Kumar <kurahul@cadence.com> Signed-off-by: Pawel Laszczak <pawell@cadence.com> Fixes: 7733f6c32e36 ("usb: cdns3: Add Cadence USB3 DRD Driver") Tested-by: Roger Quadros <rogerq@ti.com> Link: https://lore.kernel.org/r/1570430355-26118-1-git-send-email-pawell@cadence.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-04usb: cdns3: Fix sheduling with locks held.Pawel Laszczak
Patch fix issue in cdns3_ep0_feature_handle_device function. The function usleep_range can't be used there because this function is called with locks held and IRQs disabled in cdns3_device_thread_irq_handler(). To resolve this issue patch replaces usleep_range with mdelay. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Pawel Laszczak <pawell@cadence.com> Fixes: 7733f6c32e36 ("usb: cdns3: Add Cadence USB3 DRD Driver") Reviewed-by: Peter Chen <peter.chen@nxp.com> Link: https://lore.kernel.org/r/1569484721-4424-1-git-send-email-pawell@cadence.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-03usb: cdns3: Fix Wunused-but-set-variable warningYueHaibing
drivers/usb/cdns3/ep0.c: In function cdns3_ep0_feature_handle_device: drivers/usb/cdns3/ep0.c:290:6: warning: variable wIndex set but not used [-Wunused-but-set-variable] drivers/usb/cdns3/ep0.c:289:6: warning: variable wValue set but not used [-Wunused-but-set-variable] wIndex is never used, so remove it. wValue should be use in the switch statement. Reported-by: Hulk Robot <hulkci@huawei.com> Fixes: 7733f6c32e36 ("usb: cdns3: Add Cadence USB3 DRD Driver") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20190903120615.19504-1-yuehaibing@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-29usb: cdns3: Add Cadence USB3 DRD DriverPawel Laszczak
This patch introduce new Cadence USBSS DRD driver to Linux kernel. The Cadence USBSS DRD Controller is a highly configurable IP Core which can be instantiated as Dual-Role Device (DRD), Peripheral Only and Host Only (XHCI)configurations. The current driver has been validated with FPGA platform. We have support for PCIe bus, which is used on FPGA prototyping. The host side of USBSS-DRD controller is compliant with XHCI specification, so it works with standard XHCI Linux driver. Signed-off-by: Pawel Laszczak <pawell@cadence.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>