Now that we have direct and reliable detection of WC support by the
system, use is broadly. The only case we have to worry about is when the
WC autodetector cannot run.
For this fringe case generally assume that that WC is available, except in
the well defined case of no PAT support on x86 which is tested by calling
arch_can_pci_mmap_wc().
If WC is wrongly assumed to be available then it causes a small
performance hit on paths in userspace that are tuned to the assumption
that WC is available. There is no functional loss.
It is very unlikely that any platforms exist that lack WC and also care
about the micro optimization of WC in the fringe case where autodetection
does not work.
By removing the fairly bogus CONFIG tests this makes WC work broadly on
all arches and all platforms.
Link: https://lore.kernel.org/r/20200318100323.46659-1-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
use readl_poll_timeout() to replace the poll codes for simplify
iproc_mdio_wait_for_idle() function
Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Not only did this wheel did not need reinventing, but there is also
an issue with it: It doesn't remove the VLAN header in a way that
preserves the L2 payload checksum when that is being provided by the DSA
master hw. It should recalculate checksum both for the push, before
removing the header, and for the pull afterwards. But the current
implementation is quite dizzying, with pulls followed immediately
afterwards by pushes, the memmove is done before the push, etc. This
makes a DSA master with RX checksumming offload to print stack traces
with the infamous 'hw csum failure' message.
So remove the dsa_8021q_remove_header function and replace it with
something that actually works with inet checksumming.
Fixes: d461933638 ("net: dsa: tag_8021q: Create helper function for removing VLAN header")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Optimizes hns_roce_table_mhop_get() by encapsulating code about clearing
hem into clear_mhop_hem(), which will make the code flow clearer.
Link: https://lore.kernel.org/r/1584417324-2255-3-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
On devices with an AXP288, we need to wakeup from suspend when a charger
is plugged in, so that we can do charger-type detection and so that the
axp288-charger driver, which listens for our extcon events, can configure
the input-current-limit accordingly.
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
extcon_get_edev_name() function provides client driver to request
extcon dev's name. If extcon driver and client driver are compiled
as loadable modules, extcon_get_edev_name() function symbol is not
visible to client driver. Hence mark extcon_find_edev_name() function
as exported symbol.
Signed-off-by: Mayank Rana <mrana@codeaurora.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
If the gpios are probed after this driver (e.g. if they
come from an i2c expander) there is no need to print an
error message.
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
convert the binding file extcon-usbc-cros-ec.txt to
yaml format extcon-usbc-cros-ec.yaml
This was tested and verified on ARM with:
make dt_binding_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/extcon/extcon-usbc-cros-ec.yaml
make dtbs_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/extcon/extcon-usbc-cros-ec.yaml
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Second set of patches for v5.7. Lots of cleanup patches this time, but
of course various new features as well fixes.
When merging with wireless-drivers this pull request has a conflict in:
drivers/net/wireless/intel/iwlwifi/pcie/drv.c
To solve that just drop the changes from commit cf52c8a776 in
wireless-drivers and take the hunk from wireless-drivers-next as is.
The list of specific subsystem device IDs are not necessary after
commit d6f2134a38 (in wireless-drivers-next) anymore, the detection
is based on other characteristics of the devices.
Major changes:
qtnfmac
* support WPA3 SAE and OWE in AP mode
ath10k
* support for getting btcoex settings from Device Tree
* support QCA9377 SDIO device
ath11k
* add HE rate accounting
* add thermal sensor and cooling devices
mt76
* MT7663 support for the MT7615 driver
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Merge tag 'wireless-drivers-next-2020-03-24' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
wireless-drivers-next patches for v5.7
Second set of patches for v5.7. Lots of cleanup patches this time, but
of course various new features as well fixes.
When merging with wireless-drivers this pull request has a conflict in:
drivers/net/wireless/intel/iwlwifi/pcie/drv.c
To solve that just drop the changes from commit cf52c8a776 in
wireless-drivers and take the hunk from wireless-drivers-next as is.
The list of specific subsystem device IDs are not necessary after
commit d6f2134a38 (in wireless-drivers-next) anymore, the detection
is based on other characteristics of the devices.
Major changes:
qtnfmac
* support WPA3 SAE and OWE in AP mode
ath10k
* support for getting btcoex settings from Device Tree
* support QCA9377 SDIO device
ath11k
* add HE rate accounting
* add thermal sensor and cooling devices
mt76
* MT7663 support for the MT7615 driver
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Destroy CQ command to firmware returns the num_cnq_events as a
response. This indicates the driver about the number of CQ events
generated for this CQ. Driver should wait for all these events before
freeing the CQ host structures. Also, add routine to clean all the
pending notification for the CQs getting destroyed. This avoids the
possibility of accessing the CQ data structures after its freed.
Fixes: 1ac5a40479 ("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Link: https://lore.kernel.org/r/1584120842-3200-1-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Currently the software CBS does not consider the packet sending time
when depleting the credits. It caused the throughput to be
Idleslope[kbps] * (Port transmit rate[kbps] / |Sendslope[kbps]|) where
Idleslope * (Port transmit rate / (Idleslope + |Sendslope|)) = Idleslope
is expected. In order to fix the issue above, this patch takes the time
when the packet sending completes into account by moving the anchor time
variable "last" ahead to the send completion time upon transmission and
adding wait when the next dequeue request comes before the send
completion time of the previous packet.
changelog:
V2->V3:
- remove unnecessary whitespace cleanup
- add the checks if port_rate is 0 before division
V1->V2:
- combine variable "send_completed" into "last"
- add the comment for estimate of the packet sending
Fixes: 585d763af0 ("net/sched: Introduce Credit Based Shaper (CBS) qdisc")
Signed-off-by: Zh-yuan Ye <ye.zh-yuan@socionext.com>
Reviewed-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Convert the EDT-FT5x06 to DT schema using json-schema.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200207084657.31195-1-benjamin.gaignard@st.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The commit 19ba1eb15a ("Input: psmouse - add a custom serio protocol
to send extra information") introduced usage of the BIT() macro
for SERIO_* flags; this macro is not provided in UAPI headers.
Replace if with similarly defined _BITUL() macro defined
in <linux/const.h>.
Fixes: 19ba1eb15a ("Input: psmouse - add a custom serio protocol to send extra information")
Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
Cc: <stable@vger.kernel.org> # v5.0+
Link: https://lore.kernel.org/r/20200324041341.GA32335@asgard.redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The following modify sequence (loosely based on ipoib) will lose a pkey
modifcation:
- Modify (pkey index, port)
- Modify (new pkey index, NO port)
After the first modify, the qp_pps list will have saved the pkey and the
unit on the main list.
During the second modify, get_new_pps() will fetch the port from qp_pps
and read the new pkey index from qp_attr->pkey_index. The state will
still be zero, or IB_PORT_PKEY_NOT_VALID. Because of the invalid state,
the new values will never replace the one in the qp pps list, losing the
new pkey.
This happens because the following if statements will never correct the
state because the first term will be false. If the code had been executed,
it would incorrectly overwrite valid values.
if ((qp_attr_mask & IB_QP_PKEY_INDEX) && (qp_attr_mask & IB_QP_PORT))
new_pps->main.state = IB_PORT_PKEY_VALID;
if (!(qp_attr_mask & (IB_QP_PKEY_INDEX | IB_QP_PORT)) && qp_pps) {
new_pps->main.port_num = qp_pps->main.port_num;
new_pps->main.pkey_index = qp_pps->main.pkey_index;
if (qp_pps->main.state != IB_PORT_PKEY_NOT_VALID)
new_pps->main.state = IB_PORT_PKEY_VALID;
}
Fix by joining the two if statements with an or test to see if qp_pps is
non-NULL and in the correct state.
Fixes: 1dd017882e ("RDMA/core: Fix protection fault in get_pkey_idx_qp_list")
Link: https://lore.kernel.org/r/20200313124704.14982.55907.stgit@awfm-01.aw.intel.com
Reviewed-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Zhu Yanjun contributed many patches to RXE and expressed genuine interest
in improve RXE even more. Let's add him as a maintainer.
Link: https://lore.kernel.org/r/20200312083658.29603-1-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The kzalloc() function returns NULL, not error pointers.
Fixes: 30f2fe40c7 ("IB/mlx5: Introduce UAPIs to manage packet pacing")
Link: https://lore.kernel.org/r/20200320132641.GF95012@mwanda
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The previous patch "c5ccf2ad3d (Input: synaptics-rmi4 - switch to
reduced reporting mode)" enabled reduced reporting mode unintentionally
on some devices, if the firmware was configured with default Delta X/Y
threshold values. The result unintentionally degrade the performance of
some touchpads.
This patch checks to see that the driver is modifying the delta X/Y
thresholds before modifying the reporting mode.
Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Fixes: c5ccf2ad3d ("Input: synaptics-rmi4 - switch to reduced reporting mode")
Link: https://lore.kernel.org/r/20200312005549.29922-1-aduggan@synaptics.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This laptop (and perhaps other variants of the same model) reports an
SMBus-capable Synaptics touchpad. Everything (including suspend and
resume) works fine when RMI is enabled via the kernel command line, so
let's add it to the whitelist.
Signed-off-by: Yussuf Khalil <dev@pp3345.net>
Link: https://lore.kernel.org/r/20200307213508.267187-1-dev@pp3345.net
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The 'axis + 1' calculation is implicit and potentially error prone.
Moreover, few lines before the axis is set explicitly for both X and Y.
Do the same when retrieving different properties for X and Y.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200303180917.12563-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add support for it by adding compatible and supported chip data
(default settings used).
The chip data on GT9147 is similar to GT912, like
- config data register has 0x8047 address
- config data register max len is 240
- config data checksum has 8-bit
Signed-off-by: Yannick Fertre <yannick.fertre@st.com>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/1583144308-3781-3-git-send-email-yannick.fertre@st.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add support for it by adding compatible.
The chip data on GT9147 is similar to GT912, like
- config data register has 0x8047 address
- config data register max len is 240
- config data checksum has 8-bit
Signed-off-by: Yannick Fertre <yannick.fertre@st.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1583144308-3781-2-git-send-email-yannick.fertre@st.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Goodix GT917S is a touchscreen chip from Goodix that is in the GT1x
family.
Add its support by assigning the gt1x config to it.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20200228010146.12215-4-icenowy@aosc.io
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
For Goodix GT917S chip, the chip ID string is "917S", which contains not
only numbers now.
Use string-based chip ID in the driver to support this chip and further
chips with alphanumber ID.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20200228010146.12215-3-icenowy@aosc.io
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Goodix GT917S is a new touchscreen chip from Goodix.
Add its compatible string to the device tree binding.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20200228010146.12215-2-icenowy@aosc.io
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Some devices with a goodix touchscreen have more then 1 capacitive
touch-key. This commit replaces the current support for a single
touch-key, which ignored the reported key-code. With support for
up to 7 touch-keys, based upon checking the key-code which is
post-fixed to any reported touch-data.
KEY_LEFTMETA is assigned to the first touch-key (it will still be
the default keycode for devices with a single touch-key).
KEY_F1, KEY_F2... are assigned as default keycode for the other
touch-keys.
This commit also add supports for keycode remapping, so that
systemd-udev's hwdb can be used to remap the codes to send
keycodes to match the icons on the buttons for devices with more
then 1 touch-key.
Signed-off-by: Dmitry Mastykin <dmastykin@astralinux.ru>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20200316075302.3759-1-dmastykin@astralinux.ru
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The goodix panel sends spurious interrupts after a 'finger up' event,
which always cause a timeout.
We were exiting the interrupt handler by reporting touch_num == 0, but
this was still processed as valid and caused the code to use the
uninitialised point_data, creating spurious key release events.
Report an error from the interrupt handler so as to avoid processing
invalid point_data further.
Signed-off-by: Dmitry Mastykin <dmastykin@astralinux.ru>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20200316075302.3759-2-dmastykin@astralinux.ru
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On some ACPI/x86 devices (where we use one of the ACPI IRQ pin access
methods) the firmware is buggy, it does not properly reset the controller
at boot, and we cannot communicate with it.
Normally on ACPI/x86 devices we do not want to reset the controller at
probe time since in some cases this causes the controller to loose its
configuration and this is loaded into it by the system's firmware.
So on these systems we leave the reset_controller_at_probe flag unset,
even though we have a access to both the IRQ and reset pins and thus
could reset it.
In the case of the buggy firmware we have to reset the controller to
actually be able to talk to it.
This commit adds a special case for this, if the goodix_i2c_test() fails,
and we have not reset the controller yet; and we do have a way to reset
the controller then retry the i2c-test after resetting the controller.
This fixes the driver failing at probe on ACPI/x86 systems with this
firmware bug.
Reported-and-tested-by: Dmitry Mastykin <dmastykin@astralinux.ru>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200311191013.10826-2-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Our goodix_check_cfg_* helpers do things like:
int i, raw_cfg_len = cfg->size - 2;
...
if (check_sum != cfg->data[raw_cfg_len]) {
When cfg->size < 2, this will end up indexing the cfg->data array with
a negative value, which will not end well.
To fix this this commit adds a new GOODIX_CONFIG_MIN_LENGTH define and
adds a minimum size check for firmware-config files using this new define.
For consistency this commit also adds a new GOODIX_CONFIG_GT9X_LENGTH for
the length used for recent gt9xx and gt1xxx chips, instead of using
GOODIX_CONFIG_MAX_LENGTH for this, so that if other length defines get
added in the future it will be clear that the MIN and MAX defines should
contain the min and max values of all the other defines.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20200307121505.3707-9-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On most Bay Trail (x86, UEFI + ACPI) devices the ACPI tables do not have
a _DSD with a "daffd814-6eba-4d8c-8a91-bc9bbf4aa301" UUID, adding
"irq-gpios" and "reset-gpios" mappings, so we cannot get the GPIOS by name
without first manually adding mappings ourselves.
These devices contain 2 GpioIo resource in their _CRS table, on all 4 such
devices which I have access to, the order of the 2 GPIOs is reset, int.
Note that the GPIO to which the touchscreen controller irq pin is connected
is configured in direct-irq mode on these Bay Trail devices, the
pinctrl-baytrail.c driver still allows controlling the pin as a GPIO in
this case, but this is not necessarily the case on other X86 ACPI
platforms, nor do we have a guarantee that the GPIO order is the same
elsewhere, so we limit the use of a _CRS table with 2 GpioIo resources
to Bay Trail devices only.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1786317
BugLink: https://github.com/nexus511/gpd-ubuntu-packages/issues/10
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=199207
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200307121505.3707-5-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
On most Cherry Trail (x86, UEFI + ACPI) devices the ACPI tables do not have
a _DSD with a "daffd814-6eba-4d8c-8a91-bc9bbf4aa301" UUID, adding
"irq-gpios" and "reset-gpios" mappings, so we cannot get the GPIOS by name
without first manually adding mappings ourselves.
These devices contain 1 GpioInt and 1 GpioIo resource in their _CRS table:
Method (_CRS, 0, NotSerialized) // _CRS: Current Resource Settings
{
Name (RBUF, ResourceTemplate ()
{
I2cSerialBusV2 (0x0014, ControllerInitiated, 0x00061A80,
AddressingMode7Bit, "\\_SB.PCI0.I2C2",
0x00, ResourceConsumer, , Exclusive,
)
GpioInt (Edge, ActiveLow, Shared, PullDefault, 0x0000,
"\\_SB.GPO1", 0x00, ResourceConsumer, ,
)
{ // Pin list
0x0013
}
GpioIo (Shared, PullDefault, 0x0000, 0x0000,
IoRestrictionOutputOnly,
"\\_SB.GPO1", 0x00, ResourceConsumer, ,
)
{ // Pin list
0x0019
}
})
Return (RBUF) /* \_SB_.PCI0.I2C2.TCS1._CRS.RBUF */
}
There is no fixed order for these 2. This commit adds code to check that
there is 1 of each as expected and then registers a mapping matching their
order using devm_acpi_dev_add_driver_gpios().
This gives us access to both GPIOs allowing us to properly suspend the
controller during suspend, and making it possible to reset the controller
if necessary.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1786317
BugLink: https://github.com/nexus511/gpd-ubuntu-packages/issues/10
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=199207
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20200307121505.3707-4-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Before this commit we would always reset the controller at probe when we
have access to the GPIOs which are necessary to do a reset.
Doing the reset requires access to the GPIOs, but just because we have
access to the GPIOs does not mean that we should always reset the
controller at probe. On X86 ACPI platforms the BIOS / UEFI firmware will
already have reset the controller and it will have loaded the device
specific config into the controller. Doing the reset sometimes causes the
controller to lose its configuration, so on X86 ACPI platforms this is not
a good idea.
This commit adds a new reset_controller_at_probe boolean to control the
reset at probe behavior.
This commits sets the new bool to true when we set irq_pin_access_method
to IRQ_PIN_ACCESS_GPIO, so there are no functional changes.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1786317
BugLink: https://github.com/nexus511/gpd-ubuntu-packages/issues/10
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=199207
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200307121505.3707-3-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
At least on X86 ACPI platforms it is not necessary to load the touchscreen
controller config from disk, if it needs to be loaded this has already been
done by the BIOS / UEFI firmware.
Even on other (e.g. devicetree) platforms the config-loading as currently
done has the issue that the loaded cfg file is based on the controller
model, but the actual cfg is device specific, so the cfg files are not
part of linux-firmware and this can only work with a device specific OS
image which includes the cfg file.
And we do not need access to the GPIOs at all to load the config, if we
do not have access we can still load the config.
So all in all tying the decision to try to load the config from disk to
being able to access the GPIOs is not desirable. This commit adds a new
load_cfg_from_disk boolean to control the firmware loading instead.
This commits sets the new bool to true when we set irq_pin_access_method
to IRQ_PIN_ACCESS_GPIO, so there are no functional changes.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1786317
BugLink: https://github.com/nexus511/gpd-ubuntu-packages/issues/10
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=199207
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200307121505.3707-2-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Suspending Goodix touchscreens requires changing the interrupt pin to
output before sending them a power-down command. Followed by wiggling
the interrupt pin to wake the device up, after which it is put back
in input mode.
So far we have only effectively supported this on devices which use
devicetree. On X86 ACPI platforms both looking up the pins; and using a
pin as both IRQ and GPIO is a bit more complicated. E.g. on some devices
we cannot directly access the IRQ pin as GPIO and we need to call ACPI
methods to control it instead.
This commit adds a new irq_pin_access_method field to the goodix_chip_data
struct and adds goodix_irq_direction_output and goodix_irq_direction_input
helpers which together abstract the GPIO accesses to the IRQ pin.
This is a preparation patch for adding support for properly suspending the
touchscreen on X86 ACPI platforms.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1786317
BugLink: https://github.com/nexus511/gpd-ubuntu-packages/issues/10
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=199207
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20200307121505.3707-1-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The following sequence is problematic:
mtdblock_flush()
-->write_cached_data()
--->erase_write()
mtdblock: erase of region [0x40000, 0x20000] on "xxx" failed
Problem is: mtdblock_flush() always returns 0. Indeed, even if
write_cached_data() fails and data is not written to the device,
syscall_write() still returns success. Avoid this situation by
actually returning the error coming out of write_cached_data().
Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/1584674111-101462-1-git-send-email-nixiaoming@huawei.com
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200319224200.GA25162@embeddedor.com
The variable 'name' is released multiple times in the error path,
which may cause double free issues.
This problem is avoided by adding a goto label to release the memory
uniformly. And this change also makes the code a bit more cleaner.
Fixes: 4f678a58d3 ("mtd: fix memory leaks in phram_setup")
Signed-off-by: Wen Yang <wenyang@linux.alibaba.com>
Cc: Joern Engel <joern@lazybastard.org>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Cc: linux-mtd@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200318153156.25612-1-wenyang@linux.alibaba.com
The suffix was changed from "G" to "J" to classify between 1st generation
and 2nd generation serial NAND devices (which now belong to the Kioxia
brand).
As reference that's
1st generation device of 1Gbit product is "TC58CVG0S3HRAIG"
2nd generation device of 1Gbit product is "TC58CVG0S3HRAIJ".
The 8Gbit type "TH58CxG3S0HRAIJ" is new to Kioxia's serial NAND lineup and
the prefix was changed from "TC58" to "TH58".
Thus the functions were renamed from tc58cxgxsx_*() to tx58cxgxsxraix_*().
Signed-off-by: Yoshio Furuyama <ytc-mb-yfuruyama7@kioxia.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/0dedd9869569a17625822dba87878254d253ba0e.1584949601.git.ytc-mb-yfuruyama7@kioxia.com
Macronix AD series support deep power down mode for a minimum
power consumption state.
Overload nand_suspend() & nand_resume() in Macronix specific code to
support deep power down mode.
Signed-off-by: Mason Yang <masonccyang@mxic.com.tw>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
For non-fatal syndromes like LOCAL_LENGTH_ERR, recovery shouldn't be
triggered. In these scenarios, the RQ is not actually in ERR state.
This misleads the recovery flow which assumes that the RQ is really in
error state and no more completions arrive, causing crashes on bad page
state.
Fixes: 8276ea1353 ("net/mlx5e: Report and recover from CQE with error on RQ")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
In striding RQ mode, the buffers of an RX WQE are first
prepared and posted to the HW using a UMR WQEs via the ICOSQ.
We maintain the state of these in-progress WQEs in the RQ
SW struct.
In the flow of ICOSQ recovery, the corresponding RQ is not
in error state, hence:
- The buffers of the in-progress WQEs must be released
and the RQ metadata should reflect it.
- Existing RX WQEs in the RQ should not be affected.
For this, wrap the dealloc of the in-progress WQEs in
a function, and use it in the ICOSQ recovery flow
instead of mlx5e_free_rx_descs().
Fixes: be5323c837 ("net/mlx5e: Report and recover from CQE error on ICOSQ")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
