H. Nikolaus Schaller f6b9550f53 usb: dwc3: omap: fix "unbalanced disables for smps10_out1" on omap5evm ... [ Upstream commit ac01df343e5a6c6bcead2ed421af1fde30f73e7e ] Usually, the vbus_regulator (smps10 on omap5evm) boots up disabled. Hence calling regulator_disable() indirectly through dwc3_omap_set_mailbox() during probe leads to: [ 10.332764] WARNING: CPU: 0 PID: 1628 at drivers/regulator/core.c:2853 _regulator_disable+0x40/0x164 [ 10.351919] unbalanced disables for smps10_out1 [ 10.361298] Modules linked in: dwc3_omap(+) clk_twl6040 at24 gpio_twl6040 palmas_gpadc palmas_pwrbutton industrialio snd_soc_omap_mcbsp(+) snd_soc_ti_sdma display_connector ti_tpd12s015 drm leds_gpio drm_panel_orientation_quirks ip_tables x_tables ipv6 autofs4 [ 10.387818] CPU: 0 PID: 1628 Comm: systemd-udevd Not tainted 5.17.0-rc1-letux-lpae+ #8139 [ 10.405129] Hardware name: Generic OMAP5 (Flattened Device Tree) [ 10.411455] unwind_backtrace from show_stack+0x10/0x14 [ 10.416970] show_stack from dump_stack_lvl+0x40/0x4c [ 10.422313] dump_stack_lvl from __warn+0xb8/0x170 [ 10.427377] __warn from warn_slowpath_fmt+0x70/0x9c [ 10.432595] warn_slowpath_fmt from _regulator_disable+0x40/0x164 [ 10.439037] _regulator_disable from regulator_disable+0x30/0x64 [ 10.445382] regulator_disable from dwc3_omap_set_mailbox+0x8c/0xf0 [dwc3_omap] [ 10.453116] dwc3_omap_set_mailbox [dwc3_omap] from dwc3_omap_probe+0x2b8/0x394 [dwc3_omap] [ 10.467021] dwc3_omap_probe [dwc3_omap] from platform_probe+0x58/0xa8 [ 10.481762] platform_probe from really_probe+0x168/0x2fc [ 10.481782] really_probe from __driver_probe_device+0xc4/0xd8 [ 10.481782] __driver_probe_device from driver_probe_device+0x24/0xa4 [ 10.503762] driver_probe_device from __driver_attach+0xc4/0xd8 [ 10.510018] __driver_attach from bus_for_each_dev+0x64/0xa0 [ 10.516001] bus_for_each_dev from bus_add_driver+0x148/0x1a4 [ 10.524880] bus_add_driver from driver_register+0xb4/0xf8 [ 10.530678] driver_register from do_one_initcall+0x90/0x1c4 [ 10.536661] do_one_initcall from do_init_module+0x4c/0x200 [ 10.536683] do_init_module from load_module+0x13dc/0x1910 [ 10.551159] load_module from sys_finit_module+0xc8/0xd8 [ 10.561319] sys_finit_module from __sys_trace_return+0x0/0x18 [ 10.561336] Exception stack(0xc344bfa8 to 0xc344bff0) [ 10.561341] bfa0: b6fb5778 b6fab8d8 00000007 b6ecfbb8 00000000 b6ed0398 [ 10.561341] bfc0: b6fb5778 b6fab8d8 855c0500 0000017b 00020000 b6f9a3cc 00000000 b6fb5778 [ 10.595500] bfe0: bede18f8 bede18e8 b6ec9aeb b6dda1c2 [ 10.601345] ---[ end trace 0000000000000000 ]--- Fix this unnecessary warning by checking if the regulator is enabled. Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Link: https://lore.kernel.org/r/af3b750dc2265d875deaabcf5f80098c9645da45.1646744616.git.hns@goldelico.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-04-13 21:01:00 +02:00
..
atm	usb: atm: don't use snprintf() for sysfs attrs	2020-08-25 19:11:18 +02:00
c67x00	Linux 5.9-rc3	2020-08-31 07:11:45 +02:00
cdns3	usb: cdns3: fix race condition before setting doorbell	2021-10-06 15:55:46 +02:00
chipidea	usb: chipidea: ci_hdrc_imx: fix potential error pointer dereference in probe	2021-12-01 09:18:59 +01:00
class	usb: usbtmc: Fix bug in pipe direction for control transfers	2022-03-23 09:13:29 +01:00
common	usb: ulpi: Call of_node_put correctly	2022-02-16 12:54:28 +01:00
core	USB: core: Fix hang in usb_kill_urb by adding memory barriers	2022-02-01 17:25:41 +01:00
dwc2	usb: dwc2: drd: fix soft connect when gadget is unconfigured	2022-03-02 11:42:55 +01:00
dwc3	usb: dwc3: omap: fix "unbalanced disables for smps10_out1" on omap5evm	2022-04-13 21:01:00 +02:00
early	Revert "usb: early: convert to readl_poll_timeout_atomic()"	2021-12-22 09:30:56 +01:00
gadget	usb: gadget: tegra-xudc: Fix control endpoint's definitions	2022-04-13 21:00:55 +02:00
host	usb: ehci: add pci device support for Aspeed platforms	2022-04-13 21:00:56 +02:00
image	USB: microtek: use set_host_byte()	2020-09-16 12:42:10 +02:00
isp1760	usb: isp1760-hcd: convert to readl_poll_timeout_atomic()	2020-09-25 16:30:05 +02:00
misc	usb: ftdi-elan: fix memory leak on device disconnect	2022-01-27 10:53:58 +01:00
mon	USB: mon: Use scnprintf() for avoiding potential buffer overflow	2020-03-12 09:49:28 +01:00
mtu3	usb: mtu3: fix interval value for intr and isoc	2022-01-11 15:25:02 +01:00
musb	usb: musb: tusb6010: check return value after calling platform_get_resource()	2021-11-26 10:39:08 +01:00
phy	usb: phy: tahvo: add IRQ check	2021-09-15 09:50:40 +02:00
renesas_usbhs	usb: renesas_usbhs: Fix superfluous irqs happen after usb_pkt_pop()	2021-07-28 14:35:44 +02:00
roles	usb: roles: Call try_module_get() from usb_role_switch_find_by_fwnode()	2021-05-14 09:49:55 +02:00
serial	USB: serial: simple: add Nokia phone driver	2022-04-08 14:39:46 +02:00
storage	USB: storage: ums-realtek: fix error code in rts51x_read_mem()	2022-04-08 14:40:21 +02:00
typec	ucsi_ccg: Check DEV_INT bit only when starting CCG4	2022-02-01 17:25:41 +01:00
usbip	usbip:vhci_hcd USB port can get stuck in the disabled state	2021-09-18 13:40:33 +02:00
Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Makefile	…
usb-skeleton.c	…