IF YOU WOULD LIKE TO GET AN ACCOUNT, please write an
email to Administrator. User accounts are meant only to access repo
and report issues and/or generate pull requests.
This is a purpose-specific Git hosting for
BaseALT
projects. Thank you for your understanding!
Только зарегистрированные пользователи имеют доступ к сервису!
Для получения аккаунта, обратитесь к администратору.
Fix the warnings generated by casting to/from __le16 without
using the correct functions.
Fixes the following sparse warnings:
drivers/usb/renesas_usbhs/common.c:165:25: warning: incorrect type in assignment (different base types)
drivers/usb/renesas_usbhs/common.c:165:25: expected restricted __le16 [usertype] wValue
drivers/usb/renesas_usbhs/common.c:165:25: got unsigned short
drivers/usb/renesas_usbhs/common.c:166:25: warning: incorrect type in assignment (different base types)
drivers/usb/renesas_usbhs/common.c:166:25: expected restricted __le16 [usertype] wIndex
drivers/usb/renesas_usbhs/common.c:166:25: got unsigned short
drivers/usb/renesas_usbhs/common.c:167:25: warning: incorrect type in assignment (different base types)
drivers/usb/renesas_usbhs/common.c:167:25: expected restricted __le16 [usertype] wLength
drivers/usb/renesas_usbhs/common.c:167:25: got unsigned short
drivers/usb/renesas_usbhs/common.c:173:39: warning: incorrect type in argument 3 (different base types)
drivers/usb/renesas_usbhs/common.c:173:39: expected unsigned short [usertype] data
drivers/usb/renesas_usbhs/common.c:173:39: got restricted __le16 [usertype] wValue
drivers/usb/renesas_usbhs/common.c:174:39: warning: incorrect type in argument 3 (different base types)
drivers/usb/renesas_usbhs/common.c:174:39: expected unsigned short [usertype] data
drivers/usb/renesas_usbhs/common.c:174:39: got restricted __le16 [usertype] wIndex
drivers/usb/renesas_usbhs/common.c:175:39: warning: incorrect type in argument 3 (different base types)
drivers/usb/renesas_usbhs/common.c:175:39: expected unsigned short [usertype] data
Note. I belive this to be correct, and should be a no-op on arm.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
The cdns3_host_init() function is declared in host-export.h
but host.c does not include it. Add the include to have
the declaration present (and remove the declaration of
cdns3_host_exit which is now static).
Fixes the following sparse warning:
drivers/usb/cdns3/host.c:58:5: warning: symbol 'cdns3_host_init' was not declared. Should it be static?
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
The declarations of ssusb_gadget_{init,exit} are
in the mtu3_dr.h file but the code does that implements
them does not include this. Add the include to fix the
following sparse warnigns:
drivers/usb/mtu3/mtu3_core.c:825:5: warning: symbol 'ssusb_gadget_init' was not declared. Should it be static?
drivers/usb/mtu3/mtu3_core.c:925:6: warning: symbol 'ssusb_gadget_exit' was not declared. Should it be static?
Acked-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Check memory resource existence before releasing it to avoid NULL
pointer dereference
Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Reviewed-by: Ran Wang <ran.wang_1@nxp.com>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
After many randconfig builds, one configuration caused a link
error with dwc3-meson-g12a lacking the regmap-mmio code:
drivers/usb/dwc3/dwc3-meson-g12a.o: In function `dwc3_meson_g12a_probe':
dwc3-meson-g12a.c:(.text+0x9f): undefined reference to `__devm_regmap_init_mmio_clk'
Add the select statement that we have for all other users
of that dependency.
Fixes: c99993376f72 ("usb: dwc3: Add Amlogic G12A DWC3 glue")
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
A handful of drivers all have a trivial wrapper around their ioctl
handler, but don't call the compat_ptr() conversion function at the
moment. In practice this does not matter, since none of them are used
on the s390 architecture and for all other architectures, compat_ptr()
does not do anything, but using the new compat_ptr_ioctl()
helper makes it more correct in theory, and simplifies the code.
I checked that all ioctl handlers in these files are compatible
and take either pointer arguments or no argument.
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The .ioctl and .compat_ioctl file operations have the same prototype so
they can both point to the same function, which works great almost all
the time when all the commands are compatible.
One exception is the s390 architecture, where a compat pointer is only
31 bit wide, and converting it into a 64-bit pointer requires calling
compat_ptr(). Most drivers here will never run in s390, but since we now
have a generic helper for it, it's easy enough to use it consistently.
I double-checked all these drivers to ensure that all ioctl arguments
are used as pointers or are ignored, but are not interpreted as integer
values.
Acked-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: David Sterba <dsterba@suse.com>
Acked-by: Darren Hart (VMware) <dvhart@infradead.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Each of these drivers has a copy of the same trivial helper function to
convert the pointer argument and then call the native ioctl handler.
We now have a generic implementation of that, so use it.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Jiri Kosina <jkosina@suse.cz>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Prolific has developed a new USB to UART chip: PL2303HXN
PL2303HXN : PL2303GC/PL2303GS/PL2303GT/PL2303GL/PL2303GE/PL2303GB
The Vendor request used by the PL2303HXN (TYPE_HXN) is different from
the existing PL2303 series (TYPE_HX & TYPE_01).
Therefore, different Vendor requests are used to issue related commands.
1. Added a new TYPE_HXN type in pl2303_type_data, and then executes
new Vendor request,new flow control and other related instructions
if TYPE_HXN is recognized.
2. Because the new PL2303HXN only accept the new Vendor request,
the old Vendor request cannot be accepted (the error message
will be returned)
So first determine the TYPE_HX or TYPE_HXN through
PL2303_READ_TYPE_HX_STATUS in pl2303_startup.
2.1 If the return message is "1", then the PL2303 is the existing
TYPE_HX/ TYPE_01 series.
The other settings in pl2303_startup are to continue execution.
2.2 If the return message is "not 1", then the PL2303 is the new
TYPE_HXN series.
The other settings in pl2303_startup are ignored.
(PL2303HXN will directly use the default value in the hardware,
no need to add additional settings through the software)
3. In pl2303_open: Because TYPE_HXN is different from the instruction of reset
down/up stream used by TYPE_HX.
Therefore, we will also execute different instructions here.
4. In pl2303_set_termios: The UART flow control instructions used by
TYPE_HXN/TYPE_HX/TYPE_01 are different.
Therefore, we will also execute different instructions here.
5. In pl2303_vendor_read & pl2303_vendor_write, since TYPE_HXN is different
from the vendor request instruction used by TYPE_HX/TYPE_01,
it will also execute different instructions here.
6. In pl2303_update_reg: TYPE_HXN used different register for flow control.
Therefore, we will also execute different instructions here.
Signed-off-by: Charles Yeh <charlesyeh522@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
usb_composite_setup_continue() may be called before composite_setup()
return USB_GADGET_DELAYED_STATUS, then the controller driver will
delay status stage after composite_setup() finish, but the class driver
don't ask the controller to continue delayed status anymore, this will
cause control transfer timeout.
happens when use mass storage (also enabled other class driver):
cpu1: cpu2
handle_setup(SET_CONFIG) //gadget driver
unlock (g->lock)
gadget_driver->setup()
composite_setup()
lock(cdev->lock)
set_config()
fsg_set_alt() // maybe some times due to many class are enabled
raise FSG_STATE_CONFIG_CHANGE
return USB_GADGET_DELAYED_STATUS
handle_exception()
usb_composite_setup_continue()
unlock(cdev->lock)
lock(cdev->lock)
ep0_queue()
lock (g->lock)
//no delayed status, nothing todo
unlock (g->lock)
unlock(cdev->lock)
return USB_GADGET_DELAYED_STATUS // composite_setup
lock (g->lock)
get USB_GADGET_DELAYED_STATUS //handle_setup [1]
Try to fix the race condition as following:
After the driver gets USB_GADGET_DELAYED_STATUS at [1], if we find
there is a usb_request in ep0 request list, it means composite already
asked us to continue delayed status by usb_composite_setup_continue(),
so we skip request about delayed_status by composite_setup() and still
do status stage.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This patch adds UDC driver for tegra XUSB 3.0 device mode controller.
XUSB device mode controller supports SS, HS and FS modes
Based on work by:
Mark Kuo <mkuo@nvidia.com>
Hui Fu <hfu@nvidia.com>
Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Nagarjuna Kristam <nkristam@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
The newline from the unknown link state tracepoint doesn't follow the
other tracepoints, and it looks unsightly. Let's remove it.
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Testing on different generations of Lantiq MIPS SoC based boards, showed
that it takes up to 1500 us until the core reset bit is cleared.
The driver from the vendor SDK (ifxhcd) uses a 1 second timeout. Use the
same timeout to fix wrong hang detections and make the driver work for
Lantiq MIPS SoCs.
At least till kernel 4.14 the hanging reset only caused a warning but
the driver was probed successful. With kernel 4.19 errors out with
EBUSY.
Cc: linux-stable <stable@vger.kernel.org> # 4.19+
Signed-off-by: Mathias Kresin <dev@kresin.me>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Simplify this function implementation by using a known wrapper function.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
There is a statement that is indented too deeply, remove
the extraneous tabs.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
On a system that often re-configures a USB gadget device the kernel log
is filled with:
configfs-gadget gadget: high-speed config #1: c
Reduce the verbosity of this print to debug.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/usb/gadget/legacy/mass_storage.c: In function msg_do_config:
drivers/usb/gadget/legacy/mass_storage.c:108:19: warning: variable opts set but not used [-Wunused-but-set-variable]
It is not used since commit f78bbcae86e6 ("usb: f_mass_storage:
test whether thread is running before starting another")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/usb/gadget/legacy/acm_ms.c: In function acm_ms_do_config:
drivers/usb/gadget/legacy/acm_ms.c:108:19: warning: variable opts set but not used [-Wunused-but-set-variable]
It is not used since commit f78bbcae86e6 ("usb: f_mass_storage:
test whether thread is running before starting another")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Exact a new static function to do status stage
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Providing tcm_get_alt in tcm function to support Bulk only protocol and
USB Attached SCSI protocol
Signed-off-by: Jayshri Pawar <jpawar@cadence.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Correct NULL pointer checking for endpoint descriptor
before it gets dereferenced
Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Remove unused variable td_complete
Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Reviewed-by: Ran Wang <ran.wang_1@nxp.com>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Commit fea3409112a9 ("USB: add direction bit to urb->transfer_flags") has
added a usb_urb_dir_in() helper function that can be used to determine
the direction of the URB. With that patch USB_DIR_IN control requests with
wLength == 0 are considered out requests by real USB HCDs. This patch
changes dummy-hcd to use the usb_urb_dir_in() helper to match that
behavior.
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
When fuzzing the USB subsystem with syzkaller, we currently use 8 testing
processes within one VM. To isolate testing processes from one another it
is desirable to assign a dedicated USB bus to each of those, which means
we need at least 8 Dummy UDC/HCD devices.
This patch increases the maximum number of Dummy UDC/HCD devices to 32
(more than 8 in case we need more of them in the future).
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
When R-Car Gen3 USB 2.0 is in Gadget mode, if host is detached an interrupt
will be generated and Suspended state bit is set in interrupt status
register. Interrupt handler will call driver->suspend(composite_suspend)
if suspended state bit is set. composite_suspend will call
ffs_func_suspend which will post FUNCTIONFS_SUSPEND and will be consumed
by user space application via /dev/ep0.
To be able to detect host detach, extend the DVSQ_MASK to cover the
Suspended bit of the DVSQ[2:0] bitfield from the Interrupt Status
Register 0 (INTSTS0) register and perform appropriate action in the
DVST interrupt handler (usbhsg_irq_dev_state).
Without this commit, disconnection of the phone from R-Car H3 ES2.0
Salvator-X CN9 port is not recognized and reverse role switch does
not not happen. If phone is connected again it does not enumerate.
With this commit, disconnection will be recognized and reverse role
switch will happen by a user space application. If phone is connected
again it will enumerate properly and will become visible in the output
of 'lsusb'.
Signed-off-by: Veeraiyan Chidambaram <veeraiyan.chidambaram@in.bosch.com>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Similar to usbhs_status_get_ctrl_stage(), *_get_device_state() is not
supposed to return any error code since its return value is the DVSQ
bitfield of the INTSTS0 register. According to SoC HW manual rev1.00,
every single value of DVSQ[2:0] is valid and none is an error:
----8<----
Device State
000: Powered state
001: Default state
010: Address state
011: Configuration state
1xx: Suspended state
----8<----
Hence, simplify the function body. The motivation behind dropping the
switch/case construct is being able to implement reading the suspended
state. The latter (based on the above DVSQ[2:0] description) doesn't
have a unique value, but is rather a list of states (which makes
switch/case less suitable for reading/validating it):
100: (Suspended) Powered state
101: (Suspended) Default state
110: (Suspended) Address state
111: (Suspended) Configuration state
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Veeraiyan Chidambaram <veeraiyan.chidambaram@in.bosch.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Commit [1] enabled the possibility of checking the DVST (Device State
Transition) bit of INTSTS0 (Interrupt Status Register 0) and calling
the irq_dev_state() handler if the DVST bit is set. But neither
commit [1] nor commit [2] actually enabled the DVSE (Device State
Transition Interrupt Enable) bit in the INTENB0 (Interrupt Enable
Register 0). As a consequence, irq_dev_state() handler is getting
called as a side effect of other (non-DVSE) interrupts being fired,
which definitely can't be relied upon, if DVST notifications are of
any value.
Why this doesn't hurt is because usbhsg_irq_dev_state() currently
doesn't do much except of a dev_dbg(). Once more work is added to
the handler (e.g. detecting device "Suspended" state and notifying
other USB gadget components about it), enabling DVSE becomes a hard
requirement. Do it in a standalone commit for better visibility and
clear explanation.
[1] f1407d5 ("usb: renesas_usbhs: Add Renesas USBHS common code")
[2] 2f98382 ("usb: renesas_usbhs: Add Renesas USBHS Gadget")
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Veeraiyan Chidambaram <veeraiyan.chidambaram@in.bosch.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
In R-Car Gen3 USB 3.0 Function, if host is detached an interrupt
will be generated and Suspended state bit is set in interrupt status
register. Interrupt handler will call driver->suspend(composite_suspend)
if suspended state bit is set. composite_suspend will call
ffs_func_suspend which will post FUNCTIONFS_SUSPEND and will be consumed
by user space application via /dev/ep0.
To be able to detect the host detach, USB_INT_1_B2_SPND to cover the
Suspended bit of the B2_SPND_OUT[9] from the USB Status Register
(USB_STA) register and perform appropriate action in the
usb3_irq_epc_int_1 function.
Without this commit, disconnection of the phone from R-Car H3 ES2.0
Salvator-X CN11 port is not recognized and reverse role switch does
not happen. If phone is connected again it does not enumerate.
With this commit, disconnection will be recognized and reverse role
switch will happen by a user space application. If phone is connected
again it will enumerate properly and will become visible in the
output of 'lsusb'.
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Veeraiyan Chidambaram <veeraiyan.chidambaram@in.bosch.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Remove home-made waiting mechanism from gs_open() and rely on
portmaster's mutex to do the job.
Note: This releases thread waiting on close() when another thread
open()s simultaneously.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Insert markers in console stream marking places where data
is missing. This makes the hole in the data stand out clearly
instead of glueing together unrelated messages.
Example output as seen from USB host side:
[ 0.064078] pinctrl core: registered pin 16 (UART3_RTS_N PC0) on 70000868.pinmux
[ 0.064130] pinctrl
[missed 114987 bytes]
[ 4.302299] udevd[134]: starting version 3.2.5
[ 4.306845] random: udevd: uninitialized urandom read (16 bytes read)
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Legacy serial USB gadget is still useful as an early console,
before userspace is up. Later it could be replaced with proper
configfs-configured composite gadget - that use case is enabled
by this patch.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Allow configuring more than one console using USB serial or ACM gadget.
By default, only first (ttyGS0) is a console, but this may be changed
using function's new "console" attribute.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Prevent OBEX serial port from ever becoming a console. Console messages
will definitely break the protocol, and since you have to instantiate
the port making it explicitly for OBEX, there is no point in allowing
console to break it by mistake.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Rewrite console support to fix a few shortcomings of the old code
preventing its use with multiple ports. This removes some duplicated
code and replaces a custom kthread with simpler workqueue item.
Only port ttyGS0 gets to be a console for now.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
gserial_alloc_line() misses locking (for a release barrier) while
resetting port entry on TTY allocation failure. Fix this.
Cc: stable@vger.kernel.org
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
For DRD controllers, the programming guide recommended that
GUSB3PIPECTL.SUSPENDABLE and GUSB2PHYCFG.SUSPHY to be cleared after
power-on reset and only set after the controller initialization is
completed. This can be done after device soft-reset in dwc3_core_init().
This patch makes sure to clear GUSB3PIPECTL.SUSPENDABLE and
GUSB2PHYCFG.SUSPHY before core initialization and only set them after
the device soft-reset is completed.
Reference: DWC_usb3 3.30a and DWC_usb31 1.90a programming guide section
1.2.49 and 1.2.45
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
USB_DR_MODE_UNKNOWN should be treated as error as it is done in
cdns3_drd_update_mode().
Fixes: 02ffc26df96b ("usb: cdns3: fix cdns3_core_init_role()")
Signed-off-by: Roger Quadros <rogerq@ti.com>
Link: https://lore.kernel.org/r/20191017075801.8734-1-rogerq@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
