Xu Yang d4ef3c9c79 usb: ehci: add workaround for chipidea PORTSC.PEC bug ... [ Upstream commit dda4b60ed7 ] Some NXP processor using chipidea IP has a bug when frame babble is detected. As per 4.15.1.1.1 Serial Bus Babble: A babble condition also exists if IN transaction is in progress at High-speed SOF2 point. This is called frame babble. The host controller must disable the port to which the frame babble is detected. The USB controller has disabled the port (PE cleared) and has asserted USBERRINT when frame babble is detected, but PEC is not asserted. Therefore, the SW isn't aware that port has been disabled. Then the SW keeps sending packets to this port, but all of the transfers will fail. This workaround will firstly assert PCD by SW when USBERRINT is detected and then judge whether port change has really occurred or not by polling roothub status. Because the PEC doesn't get asserted in our case, this patch will also assert it by SW when specific conditions are satisfied. Signed-off-by: Xu Yang <xu.yang_2@nxp.com> Acked-by: Peter Chen <peter.chen@kernel.org> Link: https://lore.kernel.org/r/20230809024432.535160-1-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-09-23 11:09:59 +02:00
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atm	…
c67x00	…
cdns3	usb: cdns3: Put the cdns set active part outside the spin lock	2023-09-23 11:09:59 +02:00
chipidea	usb: chipidea: imx: improve logic if samsung,picophy-* parameter is 0	2023-09-06 21:28:38 +01:00
class	…
common	usb: common: usb-conn-gpio: Prevent bailing out if initial role is none	2023-08-16 18:21:59 +02:00
core	USB: core: Fix oversight in SuperSpeed initialization	2023-09-19 12:22:53 +02:00
dwc2	usb: dwc2: Fix some error handling paths	2023-07-23 13:47:21 +02:00
dwc3	usb: dwc3: meson-g12a: do post init to fix broken usb after resumption	2023-09-06 21:28:38 +01:00
early	…
gadget	usb: gadget: fsl_qe_udc: validate endpoint index for ch9 udc	2023-09-23 11:09:59 +02:00
host	usb: ehci: add workaround for chipidea PORTSC.PEC bug	2023-09-23 11:09:59 +02:00
image	…
isp1760	…
misc	…
mon	…
mtu3	…
musb	Revert "usb: common: usb-conn-gpio: Set last role to unknown before initial detection"	2023-07-23 13:47:25 +02:00
phy	usb: phy: mxs: fix getting wrong state with mxs_phy_is_otg_host()	2023-09-19 12:22:44 +02:00
renesas_usbhs	…
roles	Revert "usb: common: usb-conn-gpio: Set last role to unknown before initial detection"	2023-07-23 13:47:25 +02:00
serial	USB: serial: option: add FOXCONN T99W368/T99W373 product	2023-09-06 21:28:38 +01:00
storage	usb-storage: alauda: Fix uninit-value in alauda_check_media()	2023-08-16 18:21:59 +02:00
typec	usb: typec: bus: verify partner exists in typec_altmode_attention	2023-09-19 12:22:53 +02:00
usbip	…
Kconfig	…
Makefile	…
usb-skeleton.c	…