USB2.0 PHY hangs in Rx Compliance test when the incoming packet
amplitude is varied below and above the Squelch Level of
Receiver during the active packet multiple times.
Version 1 of the controller allows PHY to be reset when RX fail condition
is detected to work around the above issue. This feature is
disabled by default and needs to be enabled using a bit from
the newly added PHYRST_CFG register. This patch enables the workaround.
There is no way to know controller version before device controller
is started and the workaround needs to be applied for both host and
device modes, so we rely on a DT property do decide when to
apply the workaround.
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Controller version 0x0002450D has USB2 PHY RX sensitivity issues
that needs to be worked around by enabling phyrst-a-enable bit
in PHYRST_CFG register.
There is no way to know controller version before device controller
is started and the workaround needs to be applied for both host and
device modes, so we add this DT property.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Converts cdns-usb3.txt to YAML schema cdns,usb3.yaml
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
The Amlogic AXG is close to the GXL Glue but with a single OTG PHY.
It needs the same init sequence as GXL & GXM, but it seems it doesn't need
the host disconnect bit.
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
The Amlogic AXG is close to the GXL Glue but with a single OTG PHY.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
This switches the PCH UDC driver to use GPIO descriptors. The way
this is supposed to be used is confusing. The code contains the
following:
/* GPIO port for VBUS detecting */
static int vbus_gpio_port = -1; /* GPIO port number (-1:Not used) */
So a hardcoded GPIO number in the code. Further the probe() path
very clearly will exit if the GPIO is not found, so this driver
can only be configured by editing the code, hard-coding a GPIO
number into this variable.
This is simply not how we do things. My guess is that this is
used in products by patching a GPIO number into this variable and
shipping a kernel that is compile-time tailored for the target
system.
I switched this mechanism to using a GPIO descriptor associated
with the parent PCI device. This can be added by using the 16bit
subsystem ID or similar to identify which exact machine we are
running on and what GPIO is present on that machine, and then
add a GPIO descriptor using gpiod_add_lookup_table() from
<linux/gpio/machine.h>. Since I don't have any target systems
I cannot add this but I'm happy to help. I put in a FIXME so
the people actually using this driver knows what to do.
Cc: Felipe Balbi <balbi@kernel.org>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Introduce runtime PM and wakeup interrupt handler for cdns3,
the runtime PM is default off since other cdns3 may not
implement glue layer support for runtime PM.
One typical wakeup event use case is xHCI runtime suspend will clear
USBCMD.RS bit, after that the xHCI will not trigger any interrupts,
so its parent (cdns core device) needs to resume xHCI device when
any (wakeup) events occurs at host port.
When the controller is in low power mode, the lpm flag will be set.
The interrupt triggered later than lpm flag is set considers as
wakeup interrupt and handled at cdns_wakeup_irq. Once the wakeup
occurs, it first disables interrupt to avoid later interrupt
occurrence since the controller is in low power mode at that
time, and access registers may be invalid at that time. At wakeup
handler, it will call pm_request_resume to wakeup xHCI device, and
at runtime resume handler, it will enable interrupt again.
The API platform_suspend is introduced for glue layer to implement
platform specific PM sequence.
Reviewed-by: Pawel Laszczak <pawell@cadence.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Since we have both USB2 and USB3 PHYs for cdns3 controller, it is
better we have unity APIs to handle both USB2 and USB3's power, it
could simplify code for error handling and further power management
implementation.
Reviewed-by: Pawel Laszczak <pawell@cadence.com>
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>
The Broadcom BDC driver did not have a MAINTAINERS entry which made it
escape review from Al and myself, add an entry so the relevant mailing
lists and people are copied.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Make debugging real problems easier by not trying to disable an EP that
was not yet enabled.
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
This is a follow-on patch for commit a23be4ed8f ("usb: gadget: aspeed:
improve vhub port irq handling"): for_each_set_bit() is replaced with
simple for() loop because for() loop runs faster on ASPEED BMC.
Signed-off-by: Tao Ren <rentao.bupt@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Fix the following sparse warning:
drivers/usb/dwc3/trace.c: note: in included file (through drivers/usb/dwc3/trace.h):
drivers/usb/dwc3/debug.h:374:39: warning: cast to non-scalar
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Add interconnect support in dwc3-qcom driver to vote for bus
bandwidth.
This requires for two different paths - from USB to
DDR. The other is from APPS to USB.
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Sandeep Maheswaram <sanm@codeaurora.org>
Signed-off-by: Chandana Kishori Chiluveru <cchiluve@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
The UDC NET2272 driver includes <linux/gpio.h> but does not
use any symbols from this file, so drop the include.
Cc: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
The pipe splice code still used the old model of waiting for pipe IO by
using a non-specific "pipe_wait()" that waited for any pipe event to
happen, which depended on all pipe IO being entirely serialized by the
pipe lock. So by checking the state you were waiting for, and then
adding yourself to the wait queue before dropping the lock, you were
guaranteed to see all the wakeups.
Strictly speaking, the actual wakeups were not done under the lock, but
the pipe_wait() model still worked, because since the waiter held the
lock when checking whether it should sleep, it would always see the
current state, and the wakeup was always done after updating the state.
However, commit 0ddad21d3e ("pipe: use exclusive waits when reading or
writing") split the single wait-queue into two, and in the process also
made the "wait for event" code wait for _two_ wait queues, and that then
showed a race with the wakers that were not serialized by the pipe lock.
It's only splice that used that "pipe_wait()" model, so the problem
wasn't obvious, but Josef Bacik reports:
"I hit a hang with fstest btrfs/187, which does a btrfs send into
/dev/null. This works by creating a pipe, the write side is given to
the kernel to write into, and the read side is handed to a thread that
splices into a file, in this case /dev/null.
The box that was hung had the write side stuck here [pipe_write] and
the read side stuck here [splice_from_pipe_next -> pipe_wait].
[ more details about pipe_wait() scenario ]
The problem is we're doing the prepare_to_wait, which sets our state
each time, however we can be woken up either with reads or writes. In
the case above we race with the WRITER waking us up, and re-set our
state to INTERRUPTIBLE, and thus never break out of schedule"
Josef had a patch that avoided the issue in pipe_wait() by just making
it set the state only once, but the deeper problem is that pipe_wait()
depends on a level of synchonization by the pipe mutex that it really
shouldn't. And the whole "wait for any pipe state change" model really
isn't very good to begin with.
So rather than trying to work around things in pipe_wait(), remove that
legacy model of "wait for arbitrary pipe event" entirely, and actually
create functions that wait for the pipe actually being readable or
writable, and can do so without depending on the pipe lock serializing
everything.
Fixes: 0ddad21d3e ("pipe: use exclusive waits when reading or writing")
Link: https://lore.kernel.org/linux-fsdevel/bfa88b5ad6f069b2b679316b9e495a970130416c.1601567868.git.josef@toxicpanda.com/
Reported-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-and-tested-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use netif_msg_init() to process param settings
and use only the proper initialized value of
ei_local->msg_level for later processing;
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Realtek single-chip Ethernet PHY solutions can be separated as below:
10M/100Mbps: RTL8201X
1Gbps: RTL8211X
2.5Gbps: RTL8226/RTL8221X
RTL8226 is the first version for realtek that compatible 2.5Gbps single PHY.
Since RTL8226 is single port only, realtek changes its name to RTL8221B from
the second version.
PHY ID for RTL8226 is 0x001cc800 and RTL8226B/RTL8221B is 0x001cc840.
RTL8125 is not a single PHY solution, it integrates PHY/MAC/PCIE bus
controller and embedded memory.
Signed-off-by: Willy Liu <willy.liu@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After commit a8c7687bf2 ("caif_virtio: Check that vringh_config is not
null"), the variable err is being initialized with '-EINVAL' that is
meaningless. So remove it.
Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix follow warnings:
[net/core/net-sysfs.c:1161]: (warning) %u in format string (no. 1)
requires 'unsigned int' but the argument type is 'int'.
[net/core/net-sysfs.c:1162]: (warning) %u in format string (no. 1)
requires 'unsigned int' but the argument type is 'int'.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix follow warnings:
[net/core/pktgen.c:925]: (warning) %u in format string (no. 1)
requires 'unsigned int' but the argument type is 'signed int'.
[net/core/pktgen.c:942]: (warning) %u in format string (no. 1)
requires 'unsigned int' but the argument type is 'signed int'.
[net/core/pktgen.c:962]: (warning) %u in format string (no. 1)
requires 'unsigned int' but the argument type is 'signed int'.
[net/core/pktgen.c:984]: (warning) %u in format string (no. 1)
requires 'unsigned int' but the argument type is 'signed int'.
[net/core/pktgen.c:1149]: (warning) %d in format string (no. 1)
requires 'int' but the argument type is 'unsigned int'.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The fr_hard_header function is used to prepend the header to skbs before
transmission. It is used in 3 situations:
1) When a control packet is generated internally in this driver;
2) When a user sends an skb on an Ethernet-emulating PVC device;
3) When a user sends an skb on a normal PVC device.
These 3 situations need to be handled differently by fr_hard_header.
Different headers should be prepended to the skb in different situations.
Currently fr_hard_header distinguishes these 3 situations using
skb->protocol. For situation 1 and 2, a special skb->protocol value
will be assigned before calling fr_hard_header, so that it can recognize
these 2 situations. All skb->protocol values other than these special ones
are treated by fr_hard_header as situation 3.
However, it is possible that in situation 3, the user sends an skb with
one of the special skb->protocol values. In this case, fr_hard_header
would incorrectly treat it as situation 1 or 2.
This patch tries to solve this issue by using skb->dev instead of
skb->protocol to distinguish between these 3 situations. For situation
1, skb->dev would be NULL; for situation 2, skb->dev->type would be
ARPHRD_ETHER; and for situation 3, skb->dev->type would be ARPHRD_DLCI.
This way fr_hard_header would be able to distinguish these 3 situations
correctly regardless what skb->protocol value the user tries to use in
situation 3.
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Xie He <xie.he.0141@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Expose the query GID table and entry API to user space by adding two new
methods and method handlers to the device object.
This API provides a faster way to query a GID table using single call and
will be used in libibverbs to improve current approach that requires
multiple calls to open, close and read multiple sysfs files for a single
GID table entry.
Link: https://lore.kernel.org/r/20200923165015.2491894-5-leon@kernel.org
Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Introduce rdma_query_gid_table which enables querying all the GID tables
of a given device and copying the attributes of all valid GID entries to a
provided buffer.
This API provides a faster way to query a GID table using single call and
will be used in libibverbs to improve current approach that requires
multiple calls to open, close and read multiple sysfs files for a single
GID table entry.
Link: https://lore.kernel.org/r/20200923165015.2491894-4-leon@kernel.org
Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Separate IB_GID_TYPE_IB and IB_GID_TYPE_ROCE to two different values, so
enum ib_gid_type will match the gid types of the new query GID table API
which will be introduced in the following patches.
This change in enum ib_gid_type requires to change also enum
rdma_network_type by separating RDMA_NETWORK_IB and RDMA_NETWORK_ROCE_V1
values.
Link: https://lore.kernel.org/r/20200923165015.2491894-3-leon@kernel.org
Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Change the error code returned from rdma_get_gid_attr when the GID entry
is invalid but the GID index is in the gid table size range to -ENODATA
instead of -EINVAL.
This change is done in order to provide a more accurate error reporting to
be used by the new GID query API in user space. Nevertheless, -EINVAL is
still returned from sysfs in the aforementioned case to maintain
compatibility with user space that expects -EINVAL.
Link: https://lore.kernel.org/r/20200923165015.2491894-2-leon@kernel.org
Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The various array_size functions use SIZE_MAX define, but missed limits.h
causes to failure to compile code that needs overflow.h.
In file included from drivers/infiniband/core/uverbs_std_types_device.c:6:
./include/linux/overflow.h: In function 'array_size':
./include/linux/overflow.h:258:10: error: 'SIZE_MAX' undeclared (first use in this function)
258 | return SIZE_MAX;
| ^~~~~~~~
Fixes: 610b15c50e ("overflow.h: Add allocation size calculation helpers")
Link: https://lore.kernel.org/r/20200913102928.134985-1-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Making a change to fix following sparse warnings reported by kbuild bot.
CHECK drivers/infiniband/hw/qedr/verbs.c
drivers/infiniband/hw/qedr/verbs.c:3872:59: warning: incorrect type in assignment (different base types)
drivers/infiniband/hw/qedr/verbs.c:3872:59: expected restricted __le32 [usertype] sge_prod
drivers/infiniband/hw/qedr/verbs.c:3872:59: got unsigned int [usertype] sge_prod
drivers/infiniband/hw/qedr/verbs.c:3875:59: warning: incorrect type in assignment (different base types)
drivers/infiniband/hw/qedr/verbs.c:3875:59: expected restricted __le32 [usertype] wqe_prod
drivers/infiniband/hw/qedr/verbs.c:3875:59: got unsigned int [usertype] wqe_prod
Link: https://lore.kernel.org/r/20201001100959.19940-1-palok@marvell.com
Reported-by: kbuild test robot <lkp@intel.com>
Fixes: acca72e2b0 ("RDMA/qedr: SRQ's bug fixes")
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <mkalderon@marvell.com>
Signed-off-by: Alok Prasad <palok@marvell.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The only usage of these is to pass their address to sysfs_create_group()
and sysfs_remove_group(), both which takes const pointers. Make it const
to allow the compiler to put them in read-only memory.
Link: https://lore.kernel.org/r/20200930224004.24279-3-rikard.falkeborn@gmail.com
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The only usage of the pma_table field in the ib_port struct is to pass its
address to sysfs_create_group() and sysfs_remove_group(). Make it const to
make it possible to constify a couple of static struct
attribute_group. This allows the compiler to put them in read-only memory.
Link: https://lore.kernel.org/r/20200930224004.24279-2-rikard.falkeborn@gmail.com
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Update list of SSP registers with SSC2 and SSPSP2. These registers are
utilized by LPT/WPT AudioDSP architecture.
While SSC2 shares the same offset (0x40) as SSACDD, description of this
register for SSP device present on mentioned AudioDSP is different so
define separate constant to avoid any ambiguity.
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200825201743.4926-1-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
"program" mode on this controller can trigger up to 56 bits of data
shifting. During the operation, data in PRGDATA[0-5] will be
shifted out from MOSI, and data from MISO will be continuously filling
SHREG[0-9].
Currently this mode is used to implement transfer_one_message for 6-byte
full-duplex transfer, but it can execute a transfer for up-to 7 bytes
as long as the last byte is read only.
transfer_one_message is expected to perform full-duplex transfer,
instead of transfer with specific format. mtk_nor_spi_mem_prg is
added here to use this extra byte.
Newer version of this controller can trigger longer data shifting with
shift bytes more than PRGDATA_MAX + SHREG_MAX. This patch is implemented
with that in mind and it checks against both SHREG_MAX and PRG_CNT_MAX
for future support of new controllers.
Patch 3/3 is a fix for:
commit a59b2c7c56 ("spi: spi-mtk-nor: support standard spi properties")
which breaks supports_op logic. But it can't be separated as it depends
on patch 2/3. Fortuantely the broken commit isn't in stable yet.
Chuanhong Guo (3):
spi: spi-mtk-nor: make use of full capability of prg mode
spi: spi-mtk-nor: add helper for checking prg mode ops
spi: spi-mtk-nor: fix op checks in supports_op
drivers/spi/spi-mtk-nor.c | 179 +++++++++++++++++++++++++++++++++-----
1 file changed, 158 insertions(+), 21 deletions(-)
--
2.26.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.orghttp://lists.infradead.org/mailman/listinfo/linux-arm-kernel
This patch implements the reporting of the effectively used speed_hz for
the transfer by setting xfer->effective_speed_hz.
See the following patch, which adds this feature to the SPI core for more
information:
commit 5d7e2b5ed5 ("spi: core: allow reporting the effectivly used speed_hz for a transfer")
Signed-off-by: Thomas Kopp <thomas.kopp@microchip.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20200921071036.2091-1-thomas.kopp@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
