1064033 Commits

Author SHA1 Message Date
Benjamin Gray
288990ec35 powerpc/watchpoints: Annotate atomic context in more places
[ Upstream commit 27646b2e02b096a6936b3e3b6ba334ae20763eab ]

It can be easy to miss that the notifier mechanism invokes the callbacks
in an atomic context, so add some comments to that effect on the two
handlers we register here.

Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230829063457.54157-4-bgray@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:18 +02:00
Benjamin Gray
47a94e87f0 powerpc/watchpoint: Disable pagefaults when getting user instruction
[ Upstream commit 3241f260eb830d27d09cc604690ec24533fdb433 ]

This is called in an atomic context, so is not allowed to sleep if a
user page needs to be faulted in and has nowhere it can be deferred to.
The pagefault_disabled() function is documented as preventing user
access methods from sleeping.

In practice the page will be mapped in nearly always because we are
reading the instruction that just triggered the watchpoint trap.

Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230829063457.54157-3-bgray@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:18 +02:00
Benjamin Gray
7eb09f70d9 powerpc/watchpoints: Disable preemption in thread_change_pc()
[ Upstream commit cc879ab3ce39bc39f9b1d238b283f43a5f6f957d ]

thread_change_pc() uses CPU local data, so must be protected from
swapping CPUs while it is reading the breakpoint struct.

The error is more noticeable after 1e60f3564bad ("powerpc/watchpoints:
Track perf single step directly on the breakpoint"), which added an
unconditional __this_cpu_read() call in thread_change_pc(). However the
existing __this_cpu_read() that runs if a breakpoint does need to be
re-inserted has the same issue.

Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230829063457.54157-2-bgray@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:18 +02:00
Hans Verkuil
134b01a390 media: vb2: frame_vector.c: replace WARN_ONCE with a comment
[ Upstream commit 735de5caf79e06cc9fb96b1b4f4974674ae3e917 ]

The WARN_ONCE was issued also in cases that had nothing to do with VM_IO
(e.g. if the start address was just a random value and uaccess fails with
-EFAULT).

There are no reports of WARN_ONCE being issued for actual VM_IO cases, so
just drop it and instead add a note to the comment before the function.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reported-by: Yikebaer Aizezi <yikebaer61@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:18 +02:00
Chancel Liu
baf7cf0fdb ASoC: imx-rpmsg: Set ignore_pmdown_time for dai_link
[ Upstream commit fac58baf8fcfcd7481e8f6d60206ce2a47c1476c ]

i.MX rpmsg sound cards work on codec slave mode. MCLK will be disabled
by CPU DAI driver in hw_free(). Some codec requires MCLK present at
power up/down sequence. So need to set ignore_pmdown_time to power down
codec immediately before MCLK is turned off.

Take WM8962 as an example, if MCLK is disabled before DAPM power down
playback stream, FIFO error will arise in WM8962 which will have bad
impact on playback next.

Signed-off-by: Chancel Liu <chancel.liu@nxp.com>
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Link: https://lore.kernel.org/r/20230913102656.2966757-1-chancel.liu@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:18 +02:00
Stanislav Fomichev
9da93c7449 bpf: Clarify error expectations from bpf_clone_redirect
[ Upstream commit 7cb779a6867fea00b4209bcf6de2f178a743247d ]

Commit 151e887d8ff9 ("veth: Fixing transmit return status for dropped
packets") exposed the fact that bpf_clone_redirect is capable of
returning raw NET_XMIT_XXX return codes.

This is in the conflict with its UAPI doc which says the following:
"0 on success, or a negative error in case of failure."

Update the UAPI to reflect the fact that bpf_clone_redirect can
return positive error numbers, but don't explicitly define
their meaning.

Reported-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230911194731.286342-1-sdf@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:17 +02:00
Shengjiu Wang
e1a8b79ad7 ASoC: fsl: imx-pcm-rpmsg: Add SNDRV_PCM_INFO_BATCH flag
[ Upstream commit 2f9426905a63be7ccf8cd10109caf1848aa0993a ]

The rpmsg pcm device is a device which should support
double buffering.

Found this issue with pipewire. When there is no
SNDRV_PCM_INFO_BATCH flag in driver, the pipewire will
set headroom to be zero, and because rpmsg pcm device
don't support residue report, when the latency setting
is small, the "delay" always larger than "target" in
alsa-pcm.c, that reading next period data is not
scheduled on time.

With SNDRV_PCM_INFO_BATCH flag in driver, the pipewire
will select a smaller period size for device, then
the task of reading next period data will be scheduled
on time.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1694414287-13291-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:17 +02:00
Valentin Caron
45e028accb spi: stm32: add a delay before SPI disable
[ Upstream commit 6de8a70c84ee0586fdde4e671626b9caca6aed74 ]

As explained in errata sheet, in section "2.14.5 Truncation of SPI output
signals after EOT event":
On STM32MP1x, EOT interrupt can be thrown before the true end of
communication.

So we add a delay of a half period to wait the real end of the
transmission.

Link: https://www.st.com/resource/en/errata_sheet/es0539-stm32mp131x3x5x-device-errata-stmicroelectronics.pdf
Signed-off-by: Valentin Caron <valentin.caron@foss.st.com>
Link: https://lore.kernel.org/r/20230906132735.748174-1-valentin.caron@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:17 +02:00
Han Xu
25850bf83d spi: nxp-fspi: reset the FLSHxCR1 registers
[ Upstream commit 18495676f7886e105133f1dc06c1d5e8d5436f32 ]

Reset the FLSHxCR1 registers to default value. ROM may set the register
value and it affects the SPI NAND normal functions.

Signed-off-by: Han Xu <han.xu@nxp.com>
Link: https://lore.kernel.org/r/20230906183254.235847-1-han.xu@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:17 +02:00
Niklas Cassel
50662d21e4 ata: libata-eh: do not clear ATA_PFLAG_EH_PENDING in ata_eh_reset()
[ Upstream commit 80cc944eca4f0baa9c381d0706f3160e491437f2 ]

ata_scsi_port_error_handler() starts off by clearing ATA_PFLAG_EH_PENDING,
before calling ap->ops->error_handler() (without holding the ap->lock).

If an error IRQ is received while ap->ops->error_handler() is running,
the irq handler will set ATA_PFLAG_EH_PENDING.

Once ap->ops->error_handler() returns, ata_scsi_port_error_handler()
checks if ATA_PFLAG_EH_PENDING is set, and if it is, another iteration
of ATA EH is performed.

The problem is that ATA_PFLAG_EH_PENDING is not only cleared by
ata_scsi_port_error_handler(), it is also cleared by ata_eh_reset().

ata_eh_reset() is called by ap->ops->error_handler(). This additional
clearing done by ata_eh_reset() breaks the whole retry logic in
ata_scsi_port_error_handler(). Thus, if an error IRQ is received while
ap->ops->error_handler() is running, the port will currently remain
frozen and will never get re-enabled.

The additional clearing in ata_eh_reset() was introduced in commit
1e641060c4b5 ("libata: clear eh_info on reset completion").

Looking at the original error report:
https://marc.info/?l=linux-ide&m=124765325828495&w=2

We can see the following happening:
[    1.074659] ata3: XXX port freeze
[    1.074700] ata3: XXX hardresetting link, stopping engine
[    1.074746] ata3: XXX flipping SControl

[    1.411471] ata3: XXX irq_stat=400040 CONN|PHY
[    1.411475] ata3: XXX port freeze

[    1.420049] ata3: XXX starting engine
[    1.420096] ata3: XXX rc=0, class=1
[    1.420142] ata3: XXX clearing IRQs for thawing
[    1.420188] ata3: XXX port thawed
[    1.420234] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300)

We are not supposed to be able to receive an error IRQ while the port is
frozen (PxIE is set to 0, i.e. all IRQs for the port are disabled).

AHCI 1.3.1 section 10.7.1.1 First Tier (IS Register) states:
"Each bit location can be thought of as reporting a '1' if the virtual
"interrupt line" for that port is indicating it wishes to generate an
interrupt. That is, if a port has one or more interrupt status bit set,
and the enables for those status bits are set, then this bit shall be set."

Additionally, AHCI state P:ComInit clearly shows that the state machine
will only jump to P:ComInitSetIS (which sets IS.IPS(x) to '1'), if PxIE.PCE
is set to '1'. In our case, PxIE is set to 0, so IS.IPS(x) won't get set.

So IS.IPS(x) only gets set if PxIS and PxIE is set.

AHCI 1.3.1 section 10.7.1.1 First Tier (IS Register) also states:
"The bits in this register are read/write clear. It is set by the level of
the virtual interrupt line being a set, and cleared by a write of '1' from
the software."

So if IS.IPS(x) is set, you need to explicitly clear it by writing a 1 to
IS.IPS(x) for that port.

Since PxIE is cleared, the only way to get an interrupt while the port is
frozen, is if IS.IPS(x) is set, and the only way IS.IPS(x) can be set when
the port is frozen, is if it was set before the port was frozen.

However, since commit 737dd811a3db ("ata: libahci: clear pending interrupt
status"), we clear both PxIS and IS.IPS(x) after freezing the port, but
before the COMRESET, so the problem that commit 1e641060c4b5 ("libata:
clear eh_info on reset completion") fixed can no longer happen.

Thus, revert commit 1e641060c4b5 ("libata: clear eh_info on reset
completion"), so that the retry logic in ata_scsi_port_error_handler()
works once again. (The retry logic is still needed, since we can still
get an error IRQ _after_ the port has been thawed, but before
ata_scsi_port_error_handler() takes the ap->lock in order to check
if ATA_PFLAG_EH_PENDING is set.)

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:17 +02:00
Steve French
8e3cdab909 smb3: correct places where ENOTSUPP is used instead of preferred EOPNOTSUPP
[ Upstream commit ebc3d4e44a7e05457825e03d0560153687265523 ]

checkpatch flagged a few places with:
     WARNING: ENOTSUPP is not a SUSV4 error code, prefer EOPNOTSUPP
Also fixed minor typo

Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:17 +02:00
Michal Grzedzicki
d540a4370a scsi: pm80xx: Avoid leaking tags when processing OPC_INB_SET_CONTROLLER_CONFIG command
[ Upstream commit c13e7331745852d0dd7c35eabbe181cbd5b01172 ]

Tags allocated for OPC_INB_SET_CONTROLLER_CONFIG command need to be freed
when we receive the response.

Signed-off-by: Michal Grzedzicki <mge@meta.com>
Link: https://lore.kernel.org/r/20230911170340.699533-2-mge@meta.com
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:17 +02:00
Michal Grzedzicki
fde57d7ba9 scsi: pm80xx: Use phy-specific SAS address when sending PHY_START command
[ Upstream commit 71996bb835aed58c7ec4967be1d05190a27339ec ]

Some cards have more than one SAS address. Using an incorrect address
causes communication issues with some devices like expanders.

Closes: https://lore.kernel.org/linux-kernel/A57AEA84-5CA0-403E-8053-106033C73C70@fb.com/
Signed-off-by: Michal Grzedzicki <mge@meta.com>
Link: https://lore.kernel.org/r/20230913155611.3183612-1-mge@meta.com
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:17 +02:00
David Francis
a1589abd7c drm/amdgpu: Handle null atom context in VBIOS info ioctl
[ Upstream commit 5e7e82254270c8cf8b107451c5de01cee2f135ae ]

On some APU systems, there is no atom context and so the
atom_context struct is null.

Add a check to the VBIOS_INFO branch of amdgpu_info_ioctl
to handle this case, returning all zeroes.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:16 +02:00
Swapnil Patel
fd334cfd84 drm/amd/display: Don't check registers, if using AUX BL control
[ Upstream commit f5b2c10b57615828b531bb0ae56bd6325a41167e ]

[Why]
Currently the driver looks DCN registers to access if BL is on or not.
This check is not valid if we are using AUX based brightness control.
This causes driver to not send out "backlight off" command during power off
sequence as it already thinks it is off.

[How]
Only check DCN registers if we aren't using AUX based brightness control.

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Swapnil Patel <swapnil.patel@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:16 +02:00
David Thompson
a8bc0f6357 platform/mellanox: mlxbf-bootctl: add NET dependency into Kconfig
[ Upstream commit c2dffda1d8f7511505bbbf16ba282f2079b30089 ]

The latest version of the mlxbf_bootctl driver utilizes
"sysfs_format_mac", and this API is only available if
NET is defined in the kernel configuration. This patch
changes the mlxbf_bootctl Kconfig to depend on NET.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202309031058.JvwNDBKt-lkp@intel.com/
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David Thompson <davthompson@nvidia.com>
Link: https://lore.kernel.org/r/20230905133243.31550-1-davthompson@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:16 +02:00
Steven Rostedt (Google)
344f2f3e61 ring-buffer: Do not attempt to read past "commit"
[ Upstream commit 95a404bd60af6c4d9d8db01ad14fe8957ece31ca ]

When iterating over the ring buffer while the ring buffer is active, the
writer can corrupt the reader. There's barriers to help detect this and
handle it, but that code missed the case where the last event was at the
very end of the page and has only 4 bytes left.

The checks to detect the corruption by the writer to reads needs to see the
length of the event. If the length in the first 4 bytes is zero then the
length is stored in the second 4 bytes. But if the writer is in the process
of updating that code, there's a small window where the length in the first
4 bytes could be zero even though the length is only 4 bytes. That will
cause rb_event_length() to read the next 4 bytes which could happen to be off the
allocated page.

To protect against this, fail immediately if the next event pointer is
less than 8 bytes from the end of the commit (last byte of data), as all
events must be a minimum of 8 bytes anyway.

Link: https://lore.kernel.org/all/20230905141245.26470-1-Tze-nan.Wu@mediatek.com/
Link: https://lore.kernel.org/linux-trace-kernel/20230907122820.0899019c@gandalf.local.home

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Reported-by: Tze-nan Wu <Tze-nan.Wu@mediatek.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:16 +02:00
Ricardo B. Marliere
3db9b42070 selftests: fix dependency checker script
[ Upstream commit 5f9dd2e896a91bfca90f8463eb6808c03d535d8a ]

This patch fixes inconsistencies in the parsing rules of the levels 1
and 2 of the kselftest_deps.sh.  It was added the levels 4 and 5 to
account for a few edge cases that are present in some tests, also some
minor identation styling have been fixed (s/    /\t/g).

Signed-off-by: Ricardo B. Marliere <rbmarliere@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:16 +02:00
Filipe Manana
4aa90e624c btrfs: improve error message after failure to add delayed dir index item
[ Upstream commit 91bfe3104b8db0310f76f2dcb6aacef24c889366 ]

If we fail to add a delayed dir index item because there's already another
item with the same index number, we print an error message (and then BUG).
However that message isn't very helpful to debug anything because we don't
know what's the index number and what are the values of index counters in
the inode and its delayed inode (index_cnt fields of struct btrfs_inode
and struct btrfs_delayed_node).

So update the error message to include the index number and counters.

We actually had a recent case where this issue was hit by a syzbot report
(see the link below).

Link: https://lore.kernel.org/linux-btrfs/00000000000036e1290603e097e0@google.com/
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:16 +02:00
Zheng Yejian
53e7c559b7 ring-buffer: Avoid softlockup in ring_buffer_resize()
[ Upstream commit f6bd2c92488c30ef53b5bd80c52f0a7eee9d545a ]

When user resize all trace ring buffer through file 'buffer_size_kb',
then in ring_buffer_resize(), kernel allocates buffer pages for each
cpu in a loop.

If the kernel preemption model is PREEMPT_NONE and there are many cpus
and there are many buffer pages to be allocated, it may not give up cpu
for a long time and finally cause a softlockup.

To avoid it, call cond_resched() after each cpu buffer allocation.

Link: https://lore.kernel.org/linux-trace-kernel/20230906081930.3939106-1-zhengyejian1@huawei.com

Cc: <mhiramat@kernel.org>
Signed-off-by: Zheng Yejian <zhengyejian1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:16 +02:00
Zheng Yejian
b4874f72cf selftests/ftrace: Correctly enable event in instance-event.tc
[ Upstream commit f4e4ada586995b17f828c6d147d1800eb1471450 ]

Function instance_set() expects to enable event 'sched_switch', so we
should set 1 to its 'enable' file.

Testcase passed after this patch:
  # ./ftracetest test.d/instances/instance-event.tc
  === Ftrace unit tests ===
  [1] Test creation and deletion of trace instances while setting an event
  [PASS]

  # of passed:  1
  # of failed:  0
  # of unresolved:  0
  # of untested:  0
  # of unsupported:  0
  # of xfailed:  0
  # of undefined(test bug):  0

Signed-off-by: Zheng Yejian <zhengyejian1@huawei.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:15 +02:00
Kiwoong Kim
8c5c9ecbfa scsi: ufs: core: Move __ufshcd_send_uic_cmd() outside host_lock
[ Upstream commit 2d3f59cf868b4a2dd678a96cd49bdd91411bd59f ]

__ufshcd_send_uic_cmd() is wrapped by uic_cmd_mutex and its related
contexts are accessed within the section wrapped by uic_cmd_mutex. Thus,
wrapping with host_lock is redundant.

Signed-off-by: Kiwoong Kim <kwmad.kim@samsung.com>
Link: https://lore.kernel.org/r/782ba5f26f0a96e58d85dff50751787d2d2a6b2b.1693790060.git.kwmad.kim@samsung.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Chanwoo Lee <cw9316.lee@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:15 +02:00
Javed Hasan
e08e61d50a scsi: qedf: Add synchronization between I/O completions and abort
[ Upstream commit 7df0b2605489bef3f4223ad66f1f9bb8d50d4cd2 ]

Avoid race condition between I/O completion and abort processing by
protecting the cmd_type with the rport lock.

Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Link: https://lore.kernel.org/r/20230901060646.27885-1-skashyap@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:15 +02:00
Helge Deller
ada7fcba2d parisc: irq: Make irq_stack_union static to avoid sparse warning
[ Upstream commit b1bef1388c427cdad7331a9c8eb4ebbbe5b954b0 ]

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:15 +02:00
Helge Deller
b7e376a26b parisc: drivers: Fix sparse warning
[ Upstream commit b137b9d60b8add5620a06c687a71ce18776730b0 ]

Fix "warning: directive in macro's argument list" warning.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:15 +02:00
Helge Deller
d8c6fad002 parisc: iosapic.c: Fix sparse warnings
[ Upstream commit 927c6c8aa27c284a799b8c18784e37d3373af908 ]

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:15 +02:00
Helge Deller
1ecdcfec4e parisc: sba: Fix compile warning wrt list of SBA devices
[ Upstream commit eb3255ee8f6f4691471a28fbf22db5e8901116cd ]

Fix this makecheck warning:
drivers/parisc/sba_iommu.c:98:19: warning: symbol 'sba_list'
	was not declared. Should it be static?

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:15 +02:00
Tobias Schramm
bd1ec7f998 spi: sun6i: fix race between DMA RX transfer completion and RX FIFO drain
[ Upstream commit 1f11f4202caf5710204d334fe63392052783876d ]

Previously the transfer complete IRQ immediately drained to RX FIFO to
read any data remaining in FIFO to the RX buffer. This behaviour is
correct when dealing with SPI in interrupt mode. However in DMA mode the
transfer complete interrupt still fires as soon as all bytes to be
transferred have been stored in the FIFO. At that point data in the FIFO
still needs to be picked up by the DMA engine. Thus the drain procedure
and DMA engine end up racing to read from RX FIFO, corrupting any data
read. Additionally the RX buffer pointer is never adjusted according to
DMA progress in DMA mode, thus calling the RX FIFO drain procedure in DMA
mode is a bug.
Fix corruptions in DMA RX mode by draining RX FIFO only in interrupt mode.
Also wait for completion of RX DMA when in DMA mode before returning to
ensure all data has been copied to the supplied memory buffer.

Signed-off-by: Tobias Schramm <t.schramm@manjaro.org>
Link: https://lore.kernel.org/r/20230827152558.5368-3-t.schramm@manjaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:15 +02:00
Tobias Schramm
ff05ed4ae2 spi: sun6i: reduce DMA RX transfer width to single byte
[ Upstream commit 171f8a49f212e87a8b04087568e1b3d132e36a18 ]

Through empirical testing it has been determined that sometimes RX SPI
transfers with DMA enabled return corrupted data. This is down to single
or even multiple bytes lost during DMA transfer from SPI peripheral to
memory. It seems the RX FIFO within the SPI peripheral can become
confused when performing bus read accesses wider than a single byte to it
during an active SPI transfer.

This patch reduces the width of individual DMA read accesses to the
RX FIFO to a single byte to mitigate that issue.

Signed-off-by: Tobias Schramm <t.schramm@manjaro.org>
Link: https://lore.kernel.org/r/20230827152558.5368-2-t.schramm@manjaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:14 +02:00
Sergey Senozhatsky
ac0d068099 dma-debug: don't call __dma_entry_alloc_check_leak() under free_entries_lock
[ Upstream commit fb5a4315591dae307a65fc246ca80b5159d296e1 ]

__dma_entry_alloc_check_leak() calls into printk -> serial console
output (qcom geni) and grabs port->lock under free_entries_lock
spin lock, which is a reverse locking dependency chain as qcom_geni
IRQ handler can call into dma-debug code and grab free_entries_lock
under port->lock.

Move __dma_entry_alloc_check_leak() call out of free_entries_lock
scope so that we don't acquire serial console's port->lock under it.

Trimmed-down lockdep splat:

 The existing dependency chain (in reverse order) is:

               -> #2 (free_entries_lock){-.-.}-{2:2}:
        _raw_spin_lock_irqsave+0x60/0x80
        dma_entry_alloc+0x38/0x110
        debug_dma_map_page+0x60/0xf8
        dma_map_page_attrs+0x1e0/0x230
        dma_map_single_attrs.constprop.0+0x6c/0xc8
        geni_se_rx_dma_prep+0x40/0xcc
        qcom_geni_serial_isr+0x310/0x510
        __handle_irq_event_percpu+0x110/0x244
        handle_irq_event_percpu+0x20/0x54
        handle_irq_event+0x50/0x88
        handle_fasteoi_irq+0xa4/0xcc
        handle_irq_desc+0x28/0x40
        generic_handle_domain_irq+0x24/0x30
        gic_handle_irq+0xc4/0x148
        do_interrupt_handler+0xa4/0xb0
        el1_interrupt+0x34/0x64
        el1h_64_irq_handler+0x18/0x24
        el1h_64_irq+0x64/0x68
        arch_local_irq_enable+0x4/0x8
        ____do_softirq+0x18/0x24
        ...

               -> #1 (&port_lock_key){-.-.}-{2:2}:
        _raw_spin_lock_irqsave+0x60/0x80
        qcom_geni_serial_console_write+0x184/0x1dc
        console_flush_all+0x344/0x454
        console_unlock+0x94/0xf0
        vprintk_emit+0x238/0x24c
        vprintk_default+0x3c/0x48
        vprintk+0xb4/0xbc
        _printk+0x68/0x90
        register_console+0x230/0x38c
        uart_add_one_port+0x338/0x494
        qcom_geni_serial_probe+0x390/0x424
        platform_probe+0x70/0xc0
        really_probe+0x148/0x280
        __driver_probe_device+0xfc/0x114
        driver_probe_device+0x44/0x100
        __device_attach_driver+0x64/0xdc
        bus_for_each_drv+0xb0/0xd8
        __device_attach+0xe4/0x140
        device_initial_probe+0x1c/0x28
        bus_probe_device+0x44/0xb0
        device_add+0x538/0x668
        of_device_add+0x44/0x50
        of_platform_device_create_pdata+0x94/0xc8
        of_platform_bus_create+0x270/0x304
        of_platform_populate+0xac/0xc4
        devm_of_platform_populate+0x60/0xac
        geni_se_probe+0x154/0x160
        platform_probe+0x70/0xc0
        ...

               -> #0 (console_owner){-...}-{0:0}:
        __lock_acquire+0xdf8/0x109c
        lock_acquire+0x234/0x284
        console_flush_all+0x330/0x454
        console_unlock+0x94/0xf0
        vprintk_emit+0x238/0x24c
        vprintk_default+0x3c/0x48
        vprintk+0xb4/0xbc
        _printk+0x68/0x90
        dma_entry_alloc+0xb4/0x110
        debug_dma_map_sg+0xdc/0x2f8
        __dma_map_sg_attrs+0xac/0xe4
        dma_map_sgtable+0x30/0x4c
        get_pages+0x1d4/0x1e4 [msm]
        msm_gem_pin_pages_locked+0x38/0xac [msm]
        msm_gem_pin_vma_locked+0x58/0x88 [msm]
        msm_ioctl_gem_submit+0xde4/0x13ac [msm]
        drm_ioctl_kernel+0xe0/0x15c
        drm_ioctl+0x2e8/0x3f4
        vfs_ioctl+0x30/0x50
        ...

 Chain exists of:
   console_owner --> &port_lock_key --> free_entries_lock

  Possible unsafe locking scenario:

        CPU0                    CPU1
        ----                    ----
   lock(free_entries_lock);
                                lock(&port_lock_key);
                                lock(free_entries_lock);
   lock(console_owner);

                *** DEADLOCK ***

 Call trace:
  dump_backtrace+0xb4/0xf0
  show_stack+0x20/0x30
  dump_stack_lvl+0x60/0x84
  dump_stack+0x18/0x24
  print_circular_bug+0x1cc/0x234
  check_noncircular+0x78/0xac
  __lock_acquire+0xdf8/0x109c
  lock_acquire+0x234/0x284
  console_flush_all+0x330/0x454
  console_unlock+0x94/0xf0
  vprintk_emit+0x238/0x24c
  vprintk_default+0x3c/0x48
  vprintk+0xb4/0xbc
  _printk+0x68/0x90
  dma_entry_alloc+0xb4/0x110
  debug_dma_map_sg+0xdc/0x2f8
  __dma_map_sg_attrs+0xac/0xe4
  dma_map_sgtable+0x30/0x4c
  get_pages+0x1d4/0x1e4 [msm]
  msm_gem_pin_pages_locked+0x38/0xac [msm]
  msm_gem_pin_vma_locked+0x58/0x88 [msm]
  msm_ioctl_gem_submit+0xde4/0x13ac [msm]
  drm_ioctl_kernel+0xe0/0x15c
  drm_ioctl+0x2e8/0x3f4
  vfs_ioctl+0x30/0x50
  ...

Reported-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:14 +02:00
William A. Kennington III
d938c3d278 i2c: npcm7xx: Fix callback completion ordering
[ Upstream commit 92e73d807b68b2214fcafca4e130b5300a9d4b3c ]

Sometimes, our completions race with new master transfers and override
the bus->operation and bus->master_or_slave variables. This causes
transactions to timeout and kernel crashes less frequently.

To remedy this, we re-order all completions to the very end of the
function.

Fixes: 56a1485b102e ("i2c: npcm7xx: Add Nuvoton NPCM I2C controller driver")
Signed-off-by: William A. Kennington III <william@wkennington.com>
Reviewed-by: Tali Perry <tali.perry1@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:14 +02:00
Wenhua Lin
0c615323a7 gpio: pmic-eic-sprd: Add can_sleep flag for PMIC EIC chip
[ Upstream commit 26d9e5640d2130ee16df7b1fb6a908f460ab004c ]

The drivers uses a mutex and I2C bus access in its PMIC EIC chip
get implementation. This means these functions can sleep and the PMIC EIC
chip should set the can_sleep property to true.

This will ensure that a warning is printed when trying to get the
value from a context that potentially can't sleep.

Fixes: 348f3cde84ab ("gpio: Add Spreadtrum PMIC EIC driver support")
Signed-off-by: Wenhua Lin <Wenhua.Lin@unisoc.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:14 +02:00
Nathan Rossi
2a47ee15a6 soc: imx8m: Enable OCOTP clock for imx8mm before reading registers
[ Upstream commit 9d1e8275a28f51599d754ce661c91e0a689c0234 ]

Commit 836fb30949d9 ("soc: imx8m: Enable OCOTP clock before reading the
register") added configuration to enable the OCOTP clock before
attempting to read from the associated registers.

This same kexec issue is present with the imx8m SoCs that use the
imx8mm_soc_uid function (e.g. imx8mp). This requires the imx8mm_soc_uid
function to configure the OCOTP clock before accessing the associated
registers. This change implements the same clock enable functionality
that is present in the imx8mq_soc_revision function for the
imx8mm_soc_uid function.

Signed-off-by: Nathan Rossi <nathan.rossi@digi.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Fixes: 836fb30949d9 ("soc: imx8m: Enable OCOTP clock before reading the register")
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:14 +02:00
Max Filippov
7c59b882b9 xtensa: boot/lib: fix function prototypes
[ Upstream commit f54d02c8f2cc4b46ba2a3bd8252a6750453b6f2b ]

Add function prototype for gunzip() to the boot library code and make
exit() and zalloc() static.

arch/xtensa/boot/lib/zmem.c:8:6: warning: no previous prototype for 'exit' [-Wmissing-prototypes]
    8 | void exit (void)
arch/xtensa/boot/lib/zmem.c:13:7: warning: no previous prototype for 'zalloc' [-Wmissing-prototypes]
   13 | void *zalloc(unsigned size)
arch/xtensa/boot/lib/zmem.c:35:6: warning: no previous prototype for 'gunzip' [-Wmissing-prototypes]
   35 | void gunzip (void *dst, int dstlen, unsigned char *src, int *lenp)

Fixes: 4bedea945451 ("xtensa: Architecture support for Tensilica Xtensa Part 2")
Fixes: e7d163f76665 ("xtensa: Removed local copy of zlib and fixed O= support")
Suggested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:14 +02:00
Randy Dunlap
70460e81e2 xtensa: boot: don't add include-dirs
[ Upstream commit 54d3d7d363823782c3444ddc41bb8cf1edc80514 ]

Drop the -I<include-dir> options to prevent build warnings since there
is not boot/include directory:

cc1: warning: arch/xtensa/boot/include: No such file or directory [-Wmissing-include-dirs]

Fixes: 437374e9a950 ("restore arch/{ppc/xtensa}/boot cflags")
Fixes: 4bedea945451 ("xtensa: Architecture support for Tensilica Xtensa Part 2")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Message-Id: <20230920052139.10570-15-rdunlap@infradead.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:14 +02:00
Randy Dunlap
bc51434b66 xtensa: iss/network: make functions static
[ Upstream commit 1b59efeb59851277266318f4e0132aa61ce3455e ]

Make 2 functions static to prevent build warnings:

arch/xtensa/platforms/iss/network.c:204:16: warning: no previous prototype for 'tuntap_protocol' [-Wmissing-prototypes]
  204 | unsigned short tuntap_protocol(struct sk_buff *skb)
arch/xtensa/platforms/iss/network.c:444:6: warning: no previous prototype for 'iss_net_user_timer_expire' [-Wmissing-prototypes]
  444 | void iss_net_user_timer_expire(struct timer_list *unused)

Fixes: 7282bee78798 ("xtensa: Architecture support for Tensilica Xtensa Part 8")
Fixes: d8479a21a98b ("xtensa: Convert timers to use timer_setup()")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Message-Id: <20230920052139.10570-14-rdunlap@infradead.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:14 +02:00
Max Filippov
8e0f78a84f xtensa: add default definition for XCHAL_HAVE_DIV32
[ Upstream commit 494e87ffa0159b3f879694a9231089707792a44d ]

When variant FSF is set, XCHAL_HAVE_DIV32 is not defined. Add default
definition for that macro to prevent build warnings:

arch/xtensa/lib/divsi3.S:9:5: warning: "XCHAL_HAVE_DIV32" is not defined, evaluates to 0 [-Wundef]
    9 | #if XCHAL_HAVE_DIV32
arch/xtensa/lib/modsi3.S:9:5: warning: "XCHAL_HAVE_DIV32" is not defined, evaluates to 0 [-Wundef]
    9 | #if XCHAL_HAVE_DIV32

Fixes: 173d6681380a ("xtensa: remove extra header files")
Suggested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reported-by: kernel test robot <lkp@intel.com>
Closes: lore.kernel.org/r/202309150556.t0yCdv3g-lkp@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:13 +02:00
Christophe JAILLET
be57fc50dc firmware: imx-dsp: Fix an error handling path in imx_dsp_setup_channels()
[ Upstream commit e527adfb9b7d9d05a4577c116519e59a2bda4b05 ]

If mbox_request_channel_byname() fails, the memory allocated a few lines
above still need to be freed before going to the error handling path.

Fixes: 046326989a18 ("firmware: imx: Save channel name for further use")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:13 +02:00
Dan Carpenter
1df81ea9e4 power: supply: ucs1002: fix error code in ucs1002_get_property()
[ Upstream commit e35059949daa83f8dadf710d0f829ab3c3a72fe2 ]

This function is supposed to return 0 for success instead of returning
the val->intval.  This makes it the same as the other case statements
in this function.

Fixes: 81196e2e57fc ("power: supply: ucs1002: fix some health status issues")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/687f64a4-4c6e-4536-8204-98ad1df934e5@moroto.mountain
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:13 +02:00
Tony Lindgren
6937e44ffb bus: ti-sysc: Fix SYSC_QUIRK_SWSUP_SIDLE_ACT handling for uart wake-up
[ Upstream commit e5deb8f76e64d94ccef715e75ebafffd0c312d80 ]

The uarts should be tagged with SYSC_QUIRK_SWSUP_SIDLE instead of
SYSC_QUIRK_SWSUP_SIDLE_ACT. The difference is that SYSC_QUIRK_SWSUP_SIDLE
is used to force idle target modules rather than block idle during usage.

The SYSC_QUIRK_SWSUP_SIDLE_ACT should disable autoidle and wake-up when
a target module is active, and configure autoidle and wake-up when a
target module is inactive. We are missing configuring the target module
on sysc_disable_module(), and missing toggling of the wake-up bit.

Let's fix the issue to allow uart wake-up to work.

Fixes: fb685f1c190e ("bus: ti-sysc: Handle swsup idle mode quirks")
Tested-by: Dhruva Gole <d-gole@ti.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:13 +02:00
Tony Lindgren
0e75aa86a7 ARM: dts: ti: omap: motorola-mapphone: Fix abe_clkctrl warning on boot
[ Upstream commit ac08bda1569b06b7a62c7b4dd00d4c3b28ceaaec ]

Commit 0840242e8875 ("ARM: dts: Configure clock parent for pwm vibra")
attempted to fix the PWM settings but ended up causin an additional clock
reparenting error:

clk: failed to reparent abe-clkctrl:0060:24 to sys_clkin_ck: -22

Only timer9 is in the PER domain and can use the sys_clkin_ck clock source.
For timer8, the there is no sys_clkin_ck available as it's in the ABE
domain, instead it should use syc_clk_div_ck. However, for power
management, we want to use the always on sys_32k_ck instead.

Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Fixes: 0840242e8875 ("ARM: dts: Configure clock parent for pwm vibra")
Depends-on: 61978617e905 ("ARM: dts: Add minimal support for Droid Bionic xt875")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:13 +02:00
Tony Lindgren
1b39eae117 ARM: dts: ti: omap: Fix bandgap thermal cells addressing for omap3/4
[ Upstream commit 6469b2feade8fd82d224dd3734e146536f3e9f0e ]

Fix "thermal_sys: cpu_thermal: Failed to read thermal-sensors cells: -2"
error on boot for omap3/4. This is caused by wrong addressing in the dts
for bandgap sensor for single sensor instances.

Note that omap4-cpu-thermal.dtsi is shared across omap4/5 and dra7, so
we can't just change the addressing in omap4-cpu-thermal.dtsi.

Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Fixes: a761d517bbb1 ("ARM: dts: omap3: Add cpu_thermal zone")
Fixes: 0bbf6c54d100 ("arm: dts: add omap4 CPU thermal data")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:13 +02:00
Krzysztof Kozlowski
fcbf770c66 ARM: dts: omap: correct indentation
[ Upstream commit 8ae9c7a69fa14e95d032e64d8d758e3f85bee132 ]

Do not use spaces for indentation.

Link: https://lore.kernel.org/r/20221002092002.68880-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Stable-dep-of: 6469b2feade8 ("ARM: dts: ti: omap: Fix bandgap thermal cells addressing for omap3/4")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:13 +02:00
Thomas Gleixner
f5e12de36a treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 1)
[ Upstream commit 0fdebc5ec2ca492d69df2d93a6a7abade4941aae ]

Based on the normalized pattern:

    this file is licensed under the terms of the gnu general public
    license version 2 this program is licensed as is without any warranty
    of any kind whether express or implied

extracted by the scancode license scanner the SPDX license identifier

    GPL-2.0-only

has been chosen to replace the boilerplate/reference.

Reviewed-by: Allison Randal <allison@lohutok.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 6469b2feade8 ("ARM: dts: ti: omap: Fix bandgap thermal cells addressing for omap3/4")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:12 +02:00
Timo Alho
6829bc7978 clk: tegra: fix error return case for recalc_rate
[ Upstream commit a47b44fbb13f5e7a981b4515dcddc93a321ae89c ]

tegra-bpmp clocks driver makes implicit conversion of signed error
code to unsigned value in recalc_rate operation. The behavior for
recalc_rate, according to it's specification, should be that "If the
driver cannot figure out a rate for this clock, it must return 0."

Fixes: ca6f2796eef7 ("clk: tegra: Add BPMP clock driver")
Signed-off-by: Timo Alho <talho@nvidia.com>
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Link: https://lore.kernel.org/r/20230912112951.2330497-1-cyndis@kapsi.fi
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:12 +02:00
Adam Ford
78277b096d bus: ti-sysc: Fix missing AM35xx SoC matching
[ Upstream commit 11729caa520950e17cd81bc43ffc477c46cf791e ]

Commit feaa8baee82a ("bus: ti-sysc: Implement SoC revision handling")
created a list of SoC types searching for strings based on names
and wildcards which associates the SoC to different families.

The OMAP34xx and OMAP35xx are treated as SOC_3430 while
OMAP36xx and OMAP37xx are treated as SOC_3630, but the AM35xx
isn't listed.

The AM35xx is mostly an OMAP3430, and a later commit a12315d6d270
("bus: ti-sysc: Make omap3 gpt12 quirk handling SoC specific") looks
for the SOC type and behaves in a certain way if it's SOC_3430.

This caused a regression on the AM3517 causing it to return two
errors:

 ti-sysc: probe of 48318000.target-module failed with error -16
 ti-sysc: probe of 49032000.target-module failed with error -16

Fix this by treating the creating SOC_AM35 and inserting it between
the SOC_3430 and SOC_3630.  If it is treaed the same way as the
SOC_3430 when checking the status of sysc_check_active_timer,
the error conditions will disappear.

Fixes: a12315d6d270 ("bus: ti-sysc: Make omap3 gpt12 quirk handling SoC specific")
Fixes: feaa8baee82a ("bus: ti-sysc: Implement SoC revision handling")
Signed-off-by: Adam Ford <aford173@gmail.com>
Message-ID: <20230906233442.270835-1-aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:12 +02:00
Julien Panis
5435a49b3b bus: ti-sysc: Use fsleep() instead of usleep_range() in sysc_reset()
[ Upstream commit d929b2b7464f95ec01e47f560b1e687482ba8929 ]

The am335x-evm started producing boot errors because of subtle timing
changes:

Unhandled fault: external abort on non-linefetch (0x1008) at 0xf03c1010
...
sysc_reset from sysc_probe+0xf60/0x1514
sysc_probe from platform_probe+0x5c/0xbc
...

The fix consists in using the appropriate sleep function in sysc reset.
For flexible sleeping, fsleep is recommended. Here, sysc delay parameter
can take any value in [0 - 255] us range. As a result, fsleep() should
be used, calling udelay() for a sysc delay lower than 10 us.

Signed-off-by: Julien Panis <jpanis@baylibre.com>
Fixes: e709ed70d122 ("bus: ti-sysc: Fix missing reset delay handling")
Message-ID: <20230821-fix-ti-sysc-reset-v1-1-5a0a5d8fae55@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:12 +02:00
Marek Vasut
c39df101d8 drm/bridge: ti-sn65dsi83: Do not generate HFP/HBP/HSA and EOT packet
[ Upstream commit f4d324fb5628773907dd90342d18f978bd9a6d09 ]

[ Upstream commit ca161b259cc84fe1f4a2ce4c73c3832cf6f713f1 ]

Do not generate the HS front and back porch gaps, the HSA gap and
EOT packet, as per "SN65DSI83 datasheet SLLSEC1I - SEPTEMBER 2012
- REVISED OCTOBER 2020", page 22, these packets are not required.
This makes the TI SN65DSI83 bridge work with Samsung DSIM on i.MX8MN.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230403190242.224490-1-marex@denx.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:12 +02:00
Christoph Hellwig
4bf10fd51c MIPS: Alchemy: only build mmc support helpers if au1xmmc is enabled
[ Upstream commit ef8f8f04a0b25e8f294b24350e8463a8d6a9ba0b ]

While commit d4a5c59a955b ("mmc: au1xmmc: force non-modular build and
remove symbol_get usage") to be built in, it can still build a kernel
without MMC support and thuse no mmc_detect_change symbol at all.

Add ifdefs to build the mmc support code in the alchemy arch code
conditional on mmc support.

Fixes: d4a5c59a955b ("mmc: au1xmmc: force non-modular build and remove symbol_get usage")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:12 +02:00
Qu Wenruo
d2640d8687 btrfs: reset destination buffer when read_extent_buffer() gets invalid range
[ Upstream commit 74ee79142c0a344d4eae2eb7012ebc4e82254109 ]

Commit f98b6215d7d1 ("btrfs: extent_io: do extra check for extent buffer
read write functions") changed how we handle invalid extent buffer range
for read_extent_buffer().

Previously if the range is invalid we just set the destination to zero,
but after the patch we do nothing and error out.

This can lead to smatch static checker errors like:

  fs/btrfs/print-tree.c:186 print_uuid_item() error: uninitialized symbol 'subvol_id'.
  fs/btrfs/tests/extent-io-tests.c:338 check_eb_bitmap() error: uninitialized symbol 'has'.
  fs/btrfs/tests/extent-io-tests.c:353 check_eb_bitmap() error: uninitialized symbol 'has'.
  fs/btrfs/uuid-tree.c:203 btrfs_uuid_tree_remove() error: uninitialized symbol 'read_subid'.
  fs/btrfs/uuid-tree.c:353 btrfs_uuid_tree_iterate() error: uninitialized symbol 'subid_le'.
  fs/btrfs/uuid-tree.c:72 btrfs_uuid_tree_lookup() error: uninitialized symbol 'data'.
  fs/btrfs/volumes.c:7415 btrfs_dev_stats_value() error: uninitialized symbol 'val'.

Fix those warnings by reverting back to the old memset() behavior.
By this we keep the static checker happy and would still make a lot of
noise when such invalid ranges are passed in.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Fixes: f98b6215d7d1 ("btrfs: extent_io: do extra check for extent buffer read write functions")
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-06 13:18:11 +02:00