linux/drivers/usb/dwc3
Jisheng Zhang c1fad1695b usb: dwc3: don't reset device side if dwc3 was configured as host-only
commit e835c0a4e2 upstream.

Commit c4a5153e87 ("usb: dwc3: core: Power-off core/PHYs on
system_suspend in host mode") replaces check for HOST only dr_mode with
current_dr_role. But during booting, the current_dr_role isn't
initialized, thus the device side reset is always issued even if dwc3
was configured as host-only. What's more, on some platforms with host
only dwc3, aways issuing device side reset by accessing device register
block can cause kernel panic.

Fixes: c4a5153e87 ("usb: dwc3: core: Power-off core/PHYs on system_suspend in host mode")
Cc: stable <stable@kernel.org>
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20230627162018.739-1-jszhang@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2023-08-03 10:24:10 +02:00
..
core.c usb: dwc3: don't reset device side if dwc3 was configured as host-only 2023-08-03 10:24:10 +02:00
core.h Revert "usb: dwc3: core: Enable AutoRetry feature in the controller" 2023-08-03 10:24:10 +02:00
debug.h USB: dwc3: fix memory leak with using debugfs_lookup() 2023-03-11 13:55:36 +01:00
debugfs.c usb: dwc3: debugfs: Resume dwc3 before accessing registers 2023-05-24 17:32:48 +01:00
drd.c usb: dwc3: Don't switch OTG -> peripheral if extcon is present 2022-10-22 12:29:43 +02:00
dwc3-am62.c usb: dwc3-am62: remove unnecesary clk_put() 2022-06-29 21:04:55 +02:00
dwc3-exynos.c usb: dwc3: exynos: Fix remove() function 2022-11-22 16:51:45 +01:00
dwc3-haps.c usb: dwc3: haps: Constify the software node 2021-02-04 15:42:06 +01:00
dwc3-imx8mp.c usb: dwc3: imx8mp: Add support for setting SOC specific flags 2022-03-15 15:37:11 +01:00
dwc3-keystone.c usb: dwc3: fix incorrect kernel-doc comment syntax in files 2021-04-02 15:20:51 +02:00
dwc3-meson-g12a.c usb: dwc3-meson-g12a: Fix an error handling path in dwc3_meson_g12a_probe() 2023-07-19 16:21:55 +02:00
dwc3-of-simple.c usb: dwc3: Add driver for Xilinx platforms 2021-03-23 12:48:14 +01:00
dwc3-omap.c usb: dwc3: omap: fix "unbalanced disables for smps10_out1" on omap5evm 2022-03-15 15:44:46 +01:00
dwc3-pci.c usb: dwc3: pci: skip BYT GPIO lookup table for hardwired phy 2023-08-03 10:24:10 +02:00
dwc3-qcom.c usb: dwc3: qcom: Fix an error handling path in dwc3_qcom_probe() 2023-07-19 16:21:55 +02:00
dwc3-st.c usb: dwc3: st: Rely on child's compatible instead of name 2022-10-25 19:06:13 +02:00
dwc3-xilinx.c usb: dwc3: xilinx: include linux/gpio/consumer.h 2023-01-12 12:02:34 +01:00
ep0.c usb: dwc3: Avoid unmapping USB requests if endxfer is not complete 2022-09-07 16:26:26 +02:00
gadget.c usb: dwc3: gadget: Propagate core init errors to UDC during pullup 2023-07-19 16:21:45 +02:00
gadget.h usb: dwc3: Fix ep0 handling when getting reset while doing control transfer 2022-05-19 18:14:16 +02:00
host.c Revert "usb: dwc3: disable USB core PHY management" 2022-11-08 16:45:12 +01:00
io.h usb: dwc3: fix incorrect kernel-doc comment syntax in files 2021-04-02 15:20:51 +02:00
Kconfig usb: dwc3: fix extcon dependency 2023-02-01 08:34:25 +01:00
Makefile drivers: usb: dwc3: Add AM62 USB wrapper driver 2022-04-21 18:31:56 +02:00
trace.c usb: dwc3: fix incorrect kernel-doc comment syntax in files 2021-04-02 15:20:51 +02:00
trace.h usb: dwc3: trace: add Start of Frame Number to trace event 2022-08-19 11:03:52 +02:00
ulpi.c usb: dwc3: ulpi: Fix USB2.0 HS/FS/LS PHY suspend regression 2020-12-28 15:55:44 +01:00