During SNS Register FC-4 Features (RFF_ID) the initiator driver was sending
incorrect type field for NVMe supported device. Use correct feature type
field.
Link: https://lore.kernel.org/r/20220310092604.22950-12-njavali@marvell.com
Fixes: e374f9f592 ("scsi: qla2xxx: Migrate switch registration commands away from mailbox interface")
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
While a session is in the middle of a relogin, a late RSCN can be delivered
from switch. RSCN trigger fabric scan where the scan logic can trigger
another session login while a login is in progress. Reduce the extra
trigger to prevent multiple logins to the same session.
Link: https://lore.kernel.org/r/20220310092604.22950-10-njavali@marvell.com
Fixes: bee8b84686 ("scsi: qla2xxx: Reduce redundant ADISC command for RSCNs")
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
For session recovery, driver relies on the dpc thread to initiate certain
operations. The dpc thread runs exclusively without the Mailbox interface
being occupied. A recent code change for heartbeat check via mailbox cmd 0
is preventing the dpc thread from carrying out its operation. This patch
allows the higher priority error recovery to run first before running the
lower priority heartbeat check.
Link: https://lore.kernel.org/r/20220310092604.22950-9-njavali@marvell.com
Fixes: d94d8158e1 ("scsi: qla2xxx: Add heartbeat check")
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
User experienced device lost. The log shows Get port data base command was
queued up, failed, and requeued again. Every time it is requeued, it set
the FCF_ASYNC_ACTIVE. This prevents any recovery code from occurring
because driver thinks a recovery is in progress for this session. In
essence, this session is hung. The reason it gets into this place is the
session deletion got in front of this call due to link perturbation.
Break the requeue cycle and exit. The session deletion code will trigger a
session relogin.
Link: https://lore.kernel.org/r/20220310092604.22950-8-njavali@marvell.com
Fixes: 726b854870 ("qla2xxx: Add framework for async fabric discovery")
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
For N2N topology, ELS Passthrough is used to send PLOGI. On failure of ELS
pass through PLOGI, driver flipped over to using LLIOCB PLOGI for N2N. This
is not consistent. Delete the session to restart the connection where ELS
pass through PLOGI would be used consistently.
Link: https://lore.kernel.org/r/20220310092604.22950-7-njavali@marvell.com
Fixes: c76ae845ea ("scsi: qla2xxx: Add error handling for PLOGI ELS passthrough")
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
During purex packet handling the driver was incorrectly freeing a
pre-allocated structure. Fix this by skipping that entry.
System crashed with the following stack during a module unload test.
Call Trace:
sbitmap_init_node+0x7f/0x1e0
sbitmap_queue_init_node+0x24/0x150
blk_mq_init_bitmaps+0x3d/0xa0
blk_mq_init_tags+0x68/0x90
blk_mq_alloc_map_and_rqs+0x44/0x120
blk_mq_alloc_set_map_and_rqs+0x63/0x150
blk_mq_alloc_tag_set+0x11b/0x230
scsi_add_host_with_dma.cold+0x3f/0x245
qla2x00_probe_one+0xd5a/0x1b80 [qla2xxx]
Call Trace with slub_debug and debug kernel:
kasan_report_invalid_free+0x50/0x80
__kasan_slab_free+0x137/0x150
slab_free_freelist_hook+0xc6/0x190
kfree+0xe8/0x2e0
qla2x00_free_device+0x3bb/0x5d0 [qla2xxx]
qla2x00_remove_one+0x668/0xcf0 [qla2xxx]
Link: https://lore.kernel.org/r/20220310092604.22950-6-njavali@marvell.com
Fixes: 62e9dd1777 ("scsi: qla2xxx: Change in PUREX to handle FPIN ELS requests")
Cc: stable@vger.kernel.org
Reported-by: Marco Patalano <mpatalan@redhat.com>
Tested-by: Marco Patalano <mpatalan@redhat.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
At NVMe ELS request time, request structure is DMA mapped and never
unmapped. Fix this by calling the unmap on ELS completion.
Link: https://lore.kernel.org/r/20220310092604.22950-5-njavali@marvell.com
Fixes: e84067d743 ("scsi: qla2xxx: Add FC-NVMe F/W initialization and transport registration")
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Driver registration of localport can race when it happens at the remote
port discovery time. Fix this by calling the registration under a mutex.
Link: https://lore.kernel.org/r/20220310092604.22950-4-njavali@marvell.com
Fixes: e84067d743 ("scsi: qla2xxx: Add FC-NVMe F/W initialization and transport registration")
Cc: stable@vger.kernel.org
Reported-by: Marco Patalano <mpatalan@redhat.com>
Tested-by: Marco Patalano <mpatalan@redhat.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
User experienced some of the LUN failed to get rediscovered after long
cable pull test. The issue is triggered by a race condition between driver
setting session online state vs starting the LUN scan process at the same
time. Current code set the online state after notifying the session is
available. In this case, trigger to start the LUN scan process happened
before driver could set the session in online state. LUN scan ends up with
failure due to the session online check was failing.
Set the online state before reporting of the availability of the session.
Link: https://lore.kernel.org/r/20220310092604.22950-3-njavali@marvell.com
Fixes: aecf043443 ("scsi: qla2xxx: Fix Remote port registration")
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
User experienced no task management error while target device is responding
with error. The RSP_CODE field in the status IOCB is in little endian.
Driver assumes it's big endian and it picked up erroneous data.
Convert the data back to big endian as is on the wire.
Link: https://lore.kernel.org/r/20220310092604.22950-2-njavali@marvell.com
Fixes: faef62d134 ("[SCSI] qla2xxx: Fix Task Management command asynchronous handling")
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Commit 1b8d0300a3 ("scsi: libiscsi: Fix UAF in
iscsi_conn_get_param()/iscsi_conn_teardown()") fixed an UAF in
iscsi_conn_get_param() and introduced 2 tmp_xxx varibles.
We can gracefully fix this UAF with the help of device_del(). Calling
iscsi_remove_conn() at the beginning of iscsi_conn_teardown would make
userspace unable to see iscsi_cls_conn. This way we we can free memory
safely.
Remove iscsi_destroy_conn() since it is no longer used.
Link: https://lore.kernel.org/r/20220310015759.3296841-4-haowenchao@huawei.com
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Wenchao Hao <haowenchao@huawei.com>
Signed-off-by: Wu Bo <wubo40@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
iscsi_create_conn() exposed iscsi_cls_conn to sysfs prior to initialization
of iscsi_conn's dd_data. When userspace tried to access an attribute such
as the connect address, a NULL pointer dereference was observed.
Do not add iscsi_cls_conn to sysfs until it has been initialized. Remove
iscsi_create_conn() since it is no longer used.
Link: https://lore.kernel.org/r/20220310015759.3296841-3-haowenchao@huawei.com
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Wenchao Hao <haowenchao@huawei.com>
Signed-off-by: Wu Bo <wubo40@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
- iscsi_alloc_conn(): Allocate and initialize iscsi_cls_conn
- iscsi_add_conn(): Expose iscsi_cls_conn to userspace via sysfs
- iscsi_remove_conn(): Remove iscsi_cls_conn from sysfs
Link: https://lore.kernel.org/r/20220310015759.3296841-2-haowenchao@huawei.com
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Wenchao Hao <haowenchao@huawei.com>
Signed-off-by: Wu Bo <wubo40@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If HID_GROUP of eel is set to HID_GROUP_GENERIC, Whiskers Tablet Mode
Switch of eel hammer will not be detected by system because the
hid-vivaldi driver probes the device. When it is set to
HID_GROUP_VIVALDI, system will detect Whiskers Tablet Mode Switch
successfully and also support the vivaldi keyboard layout.
Tested-by: "Sean O'Brien" <seobrien@chromium.org>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Zhengqiao Xia <xiazhengqiao@huaqin.corp-partner.google.com>
[swboyd@chromium.org: Expand on commit text]
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Tested-by: Stephen Boyd <swboyd@chromium.org> # coachz, wormdingler
Link: https://lore.kernel.org/r/20220228075446.466016-6-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add support to the hammer driver to parse vivaldi keyboard layouts and
expose them to userspace. This allows hammer devices to use vivaldi
function row keys while also supporting the other features this driver
supports, like the CBAS (chrome base attached switch) and a keyboard
backlight.
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Tested-by: Stephen Boyd <swboyd@chromium.org> # coachz, wormdingler
Link: https://lore.kernel.org/r/20220228075446.466016-5-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We need to support parsing the HID device in both the Vivaldi and the
Hammer drivers so that we can properly expose the function row physmap
to userspace when a hammer device uses a vivaldi keyboard layout for the
function row keys. Extract the feature mapping logic from the vivaldi
driver into an hid specific vivaldi library so we can use it from both
HID drivers.
To allow more code sharing we mandate that vivaldi data must be placed
at the very beginning of the driver data attached to the HID device
instance.
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Tested-by: Stephen Boyd <swboyd@chromium.org> # coachz, wormdingler
Link: https://lore.kernel.org/r/20220228075446.466016-4-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Let's introduce a common library file for the physmap show function
duplicated between three different keyboard drivers. This largely copies
the code from cros_ec_keyb.c which has the most recent version of the
show function, while using the vivaldi_data struct from the hid-vivaldi
driver. This saves a small amount of space in an allyesconfig build.
$ ./scripts/bloat-o-meter vmlinux.before vmlinux.after
add/remove: 3/0 grow/shrink: 2/3 up/down: 412/-720 (-308)
Function old new delta
vivaldi_function_row_physmap_show - 292 +292
_sub_I_65535_1 1057564 1057616 +52
_sub_D_65535_0 1057564 1057616 +52
e843419@49f2_00062737_9b04 - 8 +8
e843419@20f6_0002a34d_35bc - 8 +8
atkbd_parse_fwnode_data 480 472 -8
atkbd_do_show_function_row_physmap 316 76 -240
function_row_physmap_show 620 148 -472
Total: Before=285581925, After=285581617, chg -0.00%
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Tested-by: Stephen Boyd <swboyd@chromium.org> # coachz, wormdingler
Link: https://lore.kernel.org/r/20220228075446.466016-3-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We can use devm to register keyboard backlight LED on hammer devices, this
will allow us to use HID's driver data for something else later.
Link: https://lore.kernel.org/r/20220228075446.466016-2-dmitry.torokhov@gmail.com
Tested-by: Stephen Boyd <swboyd@chromium.org> # coachz, wormdingler
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The smatch tool reported the following warning:
drivers/scsi/scsi_error.c:1988 scsi_decide_disposition() warn: ignoring
unreachable code.
Remove the "default:return FAILED;" instead of "return FAILED;" reported by
smatch, because compilers can provide more useful diagnostics about
switch/case statements that do not have a default statement, especially if
the "switch" applies to a value with enumeration type.
Link: https://lore.kernel.org/r/20220301080448.112813-1-yang.lee@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Eliminate the following smatch warning:
drivers/scsi/megaraid/megaraid_sas_fusion.c:5104 megasas_reset_fusion()
warn: inconsistent indenting
Link: https://lore.kernel.org/r/20220225011605.130927-1-yang.lee@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The RX/TX threads for iSCSI connection can be scheduled to any online CPUs,
and will not be rescheduled.
When binding other heavy load threads along with iSCSI connection RX/TX
thread to the same CPU, the iSCSI performance will be worse.
Add iscsi/cpus_allowed_list in configfs. The available CPU set of iSCSI
connection RX/TX threads is allowed_cpus & online_cpus. If it is modified,
all RX/TX threads will be rescheduled.
Link: https://lore.kernel.org/r/20220301075500.14266-1-mingzhe.zou@easystack.cn
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Mingzhe Zou <mingzhe.zou@easystack.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Use the common libsas internal abort functionality.
In addition, this driver has special handling for internal abort timeouts -
specifically whether to reset the controller in that instance, so extend
the API for that.
Timeout is now increased to 20 * Hz from 6 * Hz.
We also retry for failure now, but this should not make a difference.
Link: https://lore.kernel.org/r/1647001432-239276-5-git-send-email-john.garry@huawei.com
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
New special handling is added for SAS_PROTOCOL_INTERNAL_ABORT proto so that
we may use the common queue command API.
Link: https://lore.kernel.org/r/1647001432-239276-4-git-send-email-john.garry@huawei.com
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add support for a "device" variant of internal abort, which will abort all
pending I/Os for a specific device.
Link: https://lore.kernel.org/r/1647001432-239276-3-git-send-email-john.garry@huawei.com
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The internal abort feature is common to hisi_sas and pm8001 HBAs, and the
driver support is similar also, so add a common handler.
Two modes of operation will be supported:
- single: Abort a single tagged command
- device: Abort all commands associated with a specific domain device
A new protocol is added, SAS_PROTOCOL_INTERNAL_ABORT, so the common queue
command API may be re-used.
Only add "single" support as a first step.
Link: https://lore.kernel.org/r/1647001432-239276-2-git-send-email-john.garry@huawei.com
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The soft_wwpn/soft_wwn functionality, which allows the driver to modify
service parameters in an attempt to override the adapter-assigned WWN, was
originally attempted to be removed roughly 6 yrs ago as new fabric features
were being introduced that clashed with the implementation. In the end,
the feature was left in with the user being responsible if things went
south.
We've reached a point where soft_wwn is no longer functional and is failing
in almost all production use cases. Use of Fabric features such as Fabric
Assigned WWPN and Automatic DPORT is now prevalent and the features require
coordination between the adapter and driver that can't be solved by the
simplistic update of the service parameters. As it is no longer functional,
the feature is to be removed.
There are still ways to override the adapter-assigned WWN but they require
the admin to invoke bios/efi level menus.
Link: https://lore.kernel.org/r/20220310154845.11125-1-jsmart2021@gmail.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Co-developed-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Merge tag 'v5.17-rc8' into next
Sync up with mainline to again get the latest changes in HID subsystem.
The device_node pointer is returned by of_parse_phandle() with refcount
incremented. We should use of_node_put() on it when done.
Fixes: 1e747e59cc ("pinctrl: rockchip: base regmap supplied by a syscon")
Fixes: 14dee8677e ("pinctrl: rockchip: let pmu registers be supplied by a syscon")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220307120234.28657-1-linmq006@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This node pointer is returned by of_parse_phandle() with refcount
incremented in this function. Calling of_node_put() to avoid
the refcount leak.
Fixes: 32e67eee67 ("pinctrl: nomadik: Allow prcm_base to be extracted from Device Tree")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220307115116.25316-1-linmq006@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
When krealloc() fails and pctrl->functions is NULL, no error
return code of berlin_pinctrl_build_state() is assigned.
To fix this bug, ret is assigned with -ENOMEM when pctrl->functions
is NULL.
Signed-off-by: Meng Tang <tangmeng@uniontech.com>
Link: https://lore.kernel.org/r/20220303080206.16463-1-tangmeng@uniontech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Syzbot reported warning in usb_submit_urb() which is caused by wrong
endpoint type. There was a check for the number of endpoints, but not
for the type of endpoint.
Fix it by replacing old desc.bNumEndpoints check with
usb_find_common_endpoints() helper for finding endpoints
Fail log:
usb 5-1: BOGUS urb xfer, pipe 1 != type 3
WARNING: CPU: 2 PID: 48 at drivers/usb/core/urb.c:502 usb_submit_urb+0xed2/0x18a0 drivers/usb/core/urb.c:502
Modules linked in:
CPU: 2 PID: 48 Comm: kworker/2:2 Not tainted 5.17.0-rc6-syzkaller-00226-g07ebd38a0da2 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Workqueue: usb_hub_wq hub_event
...
Call Trace:
<TASK>
aiptek_open+0xd5/0x130 drivers/input/tablet/aiptek.c:830
input_open_device+0x1bb/0x320 drivers/input/input.c:629
kbd_connect+0xfe/0x160 drivers/tty/vt/keyboard.c:1593
Fixes: 8e20cf2bce ("Input: aiptek - fix crash on detecting device without endpoints")
Reported-and-tested-by: syzbot+75cccf2b7da87fb6f84b@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/20220308194328.26220-1-paskripkin@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The irq variable is defined as unsigned int. If the platform_get_irq()
returns a negative value, data type cast may result in error.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi (CGEL ZTE) <lv.ruyi@zte.com.cn>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/20220308025054.2077162-1-lv.ruyi@zte.com.cn
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
blk-iocost and iolatency are cgroup aware rq-qos policies but they didn't
disable merges across different cgroups. This obviously can lead to
accounting and control errors but more importantly to priority inversions -
e.g. an IO which belongs to a higher priority cgroup or IO class may end up
getting throttled incorrectly because it gets merged to an IO issued from a
low priority cgroup.
Fix it by adding blk_cgroup_mergeable() which is called from merge paths and
rejects cross-cgroup and cross-issue_as_root merges.
Signed-off-by: Tejun Heo <tj@kernel.org>
Fixes: d706751215 ("block: introduce blk-iolatency io controller")
Cc: stable@vger.kernel.org # v4.19+
Cc: Josef Bacik <jbacik@fb.com>
Link: https://lore.kernel.org/r/Yi/eE/6zFNyWJ+qd@slm.duckdns.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The Qualcomm SC8280XP platform contains a single block of registers
for the TLMM block. This provides pinconf and pinmux for 228 GPIOs, 2
UFS_RESET pins and one SDC interface.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20220308221132.1423218-1-bjorn.andersson@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Right now, when a gpio value is set, the actual hardware pin gets set
asynchronously. When linux write the output register, it takes some time
until it is actually propagated to the output shift registers. If that
output port is connected to an I2C mux for example, the linux driver
assumes the I2C bus is already switched although it is not.
Fortunately, there is a single shot mode with a feedback: you can
trigger the single shot and the hardware will clear that bit once it has
finished the clocking and strobed the load signal of the shift
registers. This can take a considerable amount of time though.
Measuremens have shown that it takes up to a whole burst cycle gap which
is about 50ms on the largest setting. Therefore, we have to mark the
output bank as sleepable. To avoid unnecessary waiting, just trigger the
single shot if the value was actually changed.
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20220226204507.2511633-6-michael@walle.cc
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Make sgpio_output_set() return an error value. Don't just ignore the
return value of any regmap access but propagate it to our callers. Even
if the accesses never fail, this is a preparation patch to add single
shot mode where we need to poll a bit and thus we might get -ETIMEDOUT.
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20220226204507.2511633-5-michael@walle.cc
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Convert sgpio_clrsetbits() to use regmap_update_bits() and drop the
spinlocks because regmap already takes care of the locking.
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20220226204507.2511633-4-michael@walle.cc
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The interrupt ack register has the usual "write one to clear" semantics.
No read-modify-write is required here.
This is also a preparation patch to change the sgpio_clrsetbits() to use
regmap_update_bits() which don't write the value if it is not changed.
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20220226204507.2511633-3-michael@walle.cc
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Protect any RMW access to the registers by a spinlock.
Fixes: 7e5ea974e6 ("pinctrl: pinctrl-microchip-sgpio: Add pinctrl driver for Microsemi Serial GPIO")
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20220226204507.2511633-2-michael@walle.cc
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
In the blamed commit, it removes the duplicate of_node assignment in the
driver. But the driver uses this before calling into of_gpio_dev_init to
determine if it needs to assign an IRQ chip to the GPIO. The fixes
consists in using the platform_get_irq_optional
Fixes: 8a8d6bbe1d ("pinctrl: Get rid of duplicate of_node assignment in the drivers")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/20220304144432.3397621-3-horatiu.vultur@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
iomuxc_snvs from imx6ull supports 2 boot mode and 10 tamper pins.
Probably most users won't use them, causing this error message during boot:
no groups defined in /soc/bus@2200000/iomuxc-snvs@2290000
This is actually not an error in this case, so reduce the level
accordingly.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20220224094243.1376965-1-alexander.stein@ew.tq-group.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Extend driving support for I2C pins on SoC mt8195.
This property is already documented in mediatek,mt8183-pinctrl.yaml.
Signed-off-by: Tinghan Shen <tinghan.shen@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220216113131.13145-3-tinghan.shen@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Use the dev_err_probe() helper to simplify error handling during probe.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20220308100956.2750295-12-wenst@chromium.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
