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... to match AMD's statement here:
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7033.html
Fixes: 50cef76d5cb0 ("x86/microcode/AMD: Load only SHA256-checksummed patches")
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: <stable@kernel.org>
Link: https://patch.msgid.link/20251020144124.2930784-1-andrew.cooper3@citrix.com
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Attempting to load the pci-idio-16 module fails during regmap
initialization with a return error -EINVAL. This is a result of the
regmap cache failing initialization. Set the idio_16_regmap_config
max_register member to fix this failure.
Fixes: 73d8f3efc5c2 ("gpio: pci-idio-16: Migrate to the regmap API")
Reported-by: Mark Cave-Ayland <mark.caveayland@nutanix.com>
Closes: https://lore.kernel.org/r/9b0375fd-235f-4ee1-a7fa-daca296ef6bf@nutanix.com
Suggested-by: Mark Cave-Ayland <mark.caveayland@nutanix.com>
Cc: stable@vger.kernel.org
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: William Breathitt Gray <wbg@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20251020-fix-gpio-idio-16-regmap-v2-2-ebeb50e93c33@kernel.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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Attempting to load the 104-idio-16 module fails during regmap
initialization with a return error -EINVAL. This is a result of the
regmap cache failing initialization. Set the idio_16_regmap_config
max_register member to fix this failure.
Fixes: 2c210c9a34a3 ("gpio: 104-idio-16: Migrate to the regmap API")
Reported-by: Mark Cave-Ayland <mark.caveayland@nutanix.com>
Closes: https://lore.kernel.org/r/9b0375fd-235f-4ee1-a7fa-daca296ef6bf@nutanix.com
Suggested-by: Mark Cave-Ayland <mark.caveayland@nutanix.com>
Cc: stable@vger.kernel.org
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: William Breathitt Gray <wbg@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20251020-fix-gpio-idio-16-regmap-v2-1-ebeb50e93c33@kernel.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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Many distributions disable FW_LOADER_USER_HELPER, and this configuration
makes lp55xx LEDs completely unusable. Enable their use by only implying
the user helper, since the basic LEDs and the hardware patterns can be used
with only the sysfs interface.
Tested on Nokia N900 with LP5523.
Additionally do not refer to the sysfs interface as legacy anymore, since
it might be the only one available to users.
Signed-off-by: Sicelo A. Mhlongo <absicsz@gmail.com>
Signed-off-by: Lee Jones <lee@kernel.org>
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Add default-brightness property to leds/common.yaml to establish a single
canonical definition for LED brightness initialization.
The property is currently defined locally in leds/leds-pwm.yaml and is
needed by auxdisplay/titanmec,tm16xx.yaml. Properties should be defined
in only one location to avoid type inconsistencies across bindings.
Signed-off-by: Jean-François Lessard <jefflessard3@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
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fwnode_get_next_child_node() is now the same as
fwnode_get_next_available_child_node() on all backends (OF, ACPI and
swnode). In order to remove the available variants, switch the uses to
non-available variants (device_get_next_child_node() in this case).
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Lee Jones <lee@kernel.org>
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fwnode_for_each_child_node() is now the same as
fwnode_for_each_available_child_node() on all backends (OF, ACPI and
swnode). In order to remove the available variants, switch the uses to
non-available variants.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Lee Jones <lee@kernel.org>
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Convert the ArcticSand arc2c0608 LED driver to the dt-schema.
Signed-off-by: Harrison Carter <hcarter@thegoodpenguin.co.uk>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Lee Jones <lee@kernel.org>
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With enough debug options enabled, struct xfs_mount is larger
than 4k and thus NOFAIL allocations won't work for it.
xfs_init_fs_context is early in the mount process, and if we really
are out of memory there we'd better give up ASAP anyway.
Fixes: 7b77b46a6137 ("xfs: use kmem functions for struct xfs_mount")
Reported-by: syzbot+359a67b608de1ef72f65@syzkaller.appspotmail.com
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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The MRU cache for open zones is unfortunately still not ideal, as it can
time out pretty easily when doing heavy I/O to hard disks using up most
or all open zones. One option would be to just increase the timeout,
but while looking into that I realized we're just better off caching it
indefinitely as there is no real downside to that once we don't hold a
reference to the cache open zone.
So switch the open zone to RCU freeing, and then stash the last used
open zone into inode->i_private. This helps to significantly reduce
fragmentation by keeping I/O localized to zones for workloads that
write using many open files to HDD.
Fixes: 4e4d52075577 ("xfs: add the zoned space allocator")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hans Holmberg <hans.holmberg@wdc.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Tested-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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When GCD has no new work to handle, but read, write or reset commands
are outstanding, it currently busy loops, which is a bit suboptimal,
and can lead to softlockup warnings in case of stuck commands.
Change the code so that the task state is only set to running when work
is performed, which looks a bit tricky due to the design of the
reading/writing/resetting lists that contain both in-flight and finished
commands.
Fixes: 080d01c41d44 ("xfs: implement zoned garbage collection")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hans Holmberg <hans.holmberg@wdc.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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When using page list framebuffer, and using RGB888 format, some
pixels can cross the page boundaries, and this case was not handled,
leading to writing 1 or 2 bytes on the next virtual address.
Add a check and a specific function to handle this case.
Fixes: c9ff2808790f0 ("drm/panic: Add support to scanout buffer as array of pages")
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20251009122955.562888-7-jfalempe@redhat.com
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
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In the unlikely case that the screen is tiny, and smaller than the
font width, it leads to a divide by 0:
draw_line_with_wrap()
chars_per_row = sb->width / font->width = 0
line_wrap.len = line->len % chars_per_row;
This will trigger a divide by 0
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20251009122955.562888-6-jfalempe@redhat.com
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
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The rectangle height was larger than the screen size. This has no
real impact.
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20251009122955.562888-5-jfalempe@redhat.com
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
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Depending on qr_code size and screen size, the vertical margin can
be negative, that means there is not enough room to draw the qr_code.
So abort early, to avoid a segfault by trying to draw at negative
coordinates.
Fixes: cb5164ac43d0f ("drm/panic: Add a QR code panic screen")
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20251009122955.562888-4-jfalempe@redhat.com
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
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The borders of the qr code was not taken into account to check if it
overlap with the logo, leading to the logo being partially covered.
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20251009122955.562888-3-jfalempe@redhat.com
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
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If the logo width is bigger than the framebuffer width, and the
height is big enough to hold the logo and the message, it will draw
at x coordinate that are higher than the width, and ends up in a
corrupted image.
Fixes: 4b570ac2eb54 ("drm/rect: Add drm_rect_overlap()")
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20251009122955.562888-2-jfalempe@redhat.com
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
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PWM2 and xin32k share the same pad, but some peripheral need the xin32k
clock to run properly, such as tsadc. I have observed that this pad is
used as xin32k by default on some existing board [1], so it maybe more
appropriate to set it to xin32k by default.
I also tested it on another rk3368 based board [2], without this adjust,
tsadc does not work properly.
[1] https://rockchip.fr/geekbox/Geekbox_V1.23.pdf
[2] https://ieiao.github.io/wiki/embedded-dev/rockchip/rk3368
Signed-off-by: WeiHao Li <cn.liweihao@gmail.com>
Link: https://patch.msgid.link/20250906142125.7602-1-cn.liweihao@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Harald Freudenberger says:
====================
Investigations related to runtime of crypto requests has revealed a lack of
performance or runtime information with crypto requests. There are the two
zcrypt ioctl trace events covering the entry and exit of an ioctl with
crypto requests giving the overall runtime within the kernel. However,
there is no way to figure out the time where a request is enqueued into the
AP bus queue but not pushed into the firmware queue. Then there is no
information about the runtime of an request during processing in the
firmware. And finally some info about pulling the reply from the firmware
and delivering it into user space is missing.
This series is aiming to provide a way to collect measurements which can be
used to cover these runtime information for each crypto request/reply.
====================
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Introduce two new AP bus related tracepoint events:
- There is a tracepoint s390_ap_nqap event immediately after a request
has been pushed into the AP firmware queue with the NQAP AP command.
- The other tracepoint s390_ap_dqap event fires immediately after a
reply has been pulled out of the AP firmware queue via DQAP AP
command.
Both events are triggered unconditional and may need filtering.
Filtering can be done based on the status value which is part of
the nqap and dqap trace. So for example a
echo "!(status & 0x00ff0000)" >.../s390_ap_dqap/filter
filters out all trace events which have a response_code != 0
leaving just the successful nqap and dqap invocations.
The idea of these two trace events focuses on performance to measure
the runtime of a crypto request/reply as close as possible at the
firmware level. In combination with the two zcrypt tracepoints (see
the zcrypt.h trace event definition file) this gives measurement data
about the runtime of a request/reply within the zcrpyt and AP bus
layer. However, with having the status of these AP commands in hand
also other usage may be possible.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Holger Dengler <dengler@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Sometimes there is a different view of the AP status word
needed. So here is slight rework of the struct ap_queue_status
to open up the possibility to have different ways of accessing
the AP status bits and fields.
The new struct ap_queue_status
struct ap_queue_status {
union {
unsigned int value : 32;
struct {
unsigned int status_bits : 8;
unsigned int rc : 8;
unsigned int : 16;
};
struct {
unsigned int queue_empty : 1;
unsigned int replies_waiting : 1;
unsigned int queue_full : 1;
unsigned int : 3;
unsigned int async : 1;
unsigned int irq_enabled : 1;
unsigned int response_code : 8;
unsigned int : 16;
};
};
};
comprises the old struct ap_queue_status but extends it
to have this also accessible as an unsigned int required
for example for a simple print or trace of the whole value.
Note that this rework is fully backward compatible to the
existing code exploiting the struct ap_queue_status.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Anthony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Holger Dengler <dengler@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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This is a slight rework of the s390_zcrypt_req and s390_zcrypt_rep
trace event:
- the psmid has been added to the s390_zcrypt_rep
- "dev" renamed to "card"
- "domain" renamed to "dom"
The motivation of these changes is to make these traces more
aligned to new upcoming traces for AP bus related trace events.
Additionally the psmid is needed to match the reply (and thus
indirect the request) to AP bus related trace events where only
the psmid is unique identifying AP messages.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Anthony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Holger Dengler <dengler@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Bagas Sanjaya says:
====================
networking docs section headings cleanup
Just two net docs patches cleaning up section headings. The shortlog below
should be self-explanatory.
====================
Link: https://patch.msgid.link/20251017064525.28836-2-bagasdotme@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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"How to turn on 6pack support" is a subsection of "Building and
installing the 6pack driver". Yet, the former is in the same heading
level as the latter as sections, making it listed in networking docs
toctree.
Demote it to subsection.
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://patch.msgid.link/20251017064525.28836-4-bagasdotme@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Subsection headings of "Userspace interface" is written in normal
paragraph, all-capped. Properly format them as reST section headings.
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://patch.msgid.link/20251017064525.28836-3-bagasdotme@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The current hlist_empty checks only test the first bucket of each
hashtable, ignoring any other bucket. They should be caught by the
WARN_ON for state_all, but better to make all the checks accurate.
Fixes: 73d189dce486 ("netns xfrm: per-netns xfrm_state_bydst hash")
Fixes: d320bbb306f2 ("netns xfrm: per-netns xfrm_state_bysrc hash")
Fixes: b754a4fd8f58 ("netns xfrm: per-netns xfrm_state_byspi hash")
Fixes: fe9f1d8779cb ("xfrm: add state hashtable keyed by seq")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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xfrm_state_construct can fail without setting an error if the
requested pcpu_num value is too big. Set err and add an extack message
to avoid confusing userspace.
Fixes: 1ddf9916ac09 ("xfrm: Add support for per cpu xfrm state handling.")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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In case xfrm_state_migrate fails after calling xfrm_dev_state_add, we
directly release the last reference and destroy the new state, without
calling xfrm_dev_state_delete (this only happens in
__xfrm_state_delete, which we're not calling on this path, since the
state was never added).
Call xfrm_dev_state_delete on error when an offload configuration was
provided.
Fixes: ab244a394c7f ("xfrm: Migrate offload configuration")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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xfrm_state_migrate/xfrm_state_clone_and_setup create a new state, and
call xfrm_state_put to destroy it in case of
failure. __xfrm_state_destroy expects the state to be in
XFRM_STATE_DEAD, but we currently don't do that.
Reported-by: syzbot+5cd6299ede4d4f70987b@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=5cd6299ede4d4f70987b
Fixes: 78347c8c6b2d ("xfrm: Fix xfrm_state_migrate leak")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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were never added
In commit b441cf3f8c4b ("xfrm: delete x->tunnel as we delete x"), I
missed the case where state creation fails between full
initialization (->init_state has been called) and being inserted on
the lists.
In this situation, ->init_state has been called, so for IPcomp
tunnels, the fallback tunnel has been created and added onto the
lists, but the user state never gets added, because we fail before
that. The user state doesn't go through __xfrm_state_delete, so we
don't call xfrm_state_delete_tunnel for those states, and we end up
leaking the FB tunnel.
There are several codepaths affected by this: the add/update paths, in
both net/key and xfrm, and the migrate code (xfrm_migrate,
xfrm_state_migrate). A "proper" rollback of the init_state work would
probably be doable in the add/update code, but for migrate it gets
more complicated as multiple states may be involved.
At some point, the new (not-inserted) state will be destroyed, so call
xfrm_state_delete_tunnel during xfrm_state_gc_destroy. Most states
will have their fallback tunnel cleaned up during __xfrm_state_delete,
which solves the issue that b441cf3f8c4b (and other patches before it)
aimed at. All states (including FB tunnels) will be removed from the
lists once xfrm_state_fini has called flush_work(&xfrm_state_gc_work).
Reported-by: syzbot+999eb23467f83f9bf9bf@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=999eb23467f83f9bf9bf
Fixes: b441cf3f8c4b ("xfrm: delete x->tunnel as we delete x")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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We're not updating x1, but we still need to put() it.
Fixes: a4a87fa4e96c ("xfrm: Add Direction to the SA in or out")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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This driver no longer uses any symbols from the GPIOLIB internal header.
We can now drop the gpiolib.h include.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20251016-aspeed-gpiolib-include-v1-3-31201c06d124@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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Reading the GPIO hardware number from a descriptor is a valid use-case
outside of the GPIO core. Export the symbol to consumers of GPIO
descriptors.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20251016-aspeed-gpiolib-include-v1-2-31201c06d124@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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This function takes a GPIO descriptor as first argument. Make its naming
consistent with the rest of the GPIO codebase and use the gpiod_ prefix.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20251016-aspeed-gpiolib-include-v1-1-31201c06d124@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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This driver no longer uses any GPIOLIB internal symbols. We can drop the
gpiolib.h include.
Link: https://lore.kernel.org/r/20251015151605.71203-1-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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According to Documentation/devicetree/bindings/spi/spi-nxp-fspi.yaml,
imx93/imx95 should use it's own compatible string and fallback
compatible with imx8mm.
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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A kernel module must have a license and should have a description. Add
missing MODULE_LICENSE(), MODULE_DESCRIPTION() and throw in a
MODULE_AUTHOR() for good measure.
This fixes the following build issues:
ERROR: modpost: missing MODULE_LICENSE() in drivers/gpio/gpio-qixis-fpga.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpio/gpio-qixis-fpga.o
Reported-by: Mark Brown <broonie@kernel.org>
Closes: https://lore.kernel.org/all/aPJW8HIke5pj3doX@sirena.org.uk/
Fixes: e88500247dc3 ("gpio: add QIXIS FPGA GPIO controller")
Link: https://lore.kernel.org/r/20251020072028.21423-1-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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Add fan-supply regulator to pwm-fan node to specify power source.
Fixes: e3e8b199aff8 ("arm64: dts: imx95: Add imx95-15x15-evk support")
Signed-off-by: Joy Zou <joy.zou@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The pt_dump_seq_puts() macro incorrectly uses seq_printf() instead of
seq_puts(). This is both a performance issue and conceptually wrong,
as the macro name suggests plain string output (puts) but the
implementation uses formatted output (printf).
The macro is used in dump_pagetables.c:67-68 and 131 to output
constant strings. Using seq_printf() adds unnecessary overhead for
format string parsing.
Signed-off-by: Josephine Pfeiffer <hi@josie.lol>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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SDHC1 on the GW702x SOM routes to a connector for use on a baseboard
and as such are defined in the baseboard device-trees.
Remove it from the gw702x SOM device-tree.
Fixes: 0d5b288c2110 ("arm64: dts: freescale: Add imx8mp-venice-gw7905-2x")
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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UART1 and UART3 go to a connector for use on a baseboard and as such are
defined in the baseboard device-trees. Remove them from the gw702x SOM
device-tree.
Fixes: 0d5b288c2110 ("arm64: dts: freescale: Add imx8mp-venice-gw7905-2x")
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The SDHC1 interface is not used on the imx8mm-venice-gw72xx. Remove the
unused pinctrl_usdhc1 iomux node.
Fixes: 6f30b27c5ef5 ("arm64: dts: imx8mm: Add Gateworks i.MX 8M Mini Development Kits")
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The i.MX8M Mini FEC RGMII tracelength is less than 1in and does not
require a x6 drive strength. Reduce the CLK drive strength to x1 for
lower emissions. Additionally since TXC is not a high frequency clock,
use slow slew rate (FSEL=0) for lower emmissions and improved signal
quality.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The i.MX8M Plus EQOS RGMII tracelength is less than 1in and does not
require a x6 drive strength. Reduce the CLK drive strength to x1 for
lower emissions. Additionally since TXC is not a high frequency clock,
use slow slew rate (FSEL=0) for lower emmissions and improved signal
quality.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Disable the unused refclk output for the TI DP83867 PHY used on
Gateworks Venice boards.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Remove the un-intended duplicate properties from usdhc1.
Fixes: 0d5b288c2110e ("arm64: dts: freescale: Add imx8mp-venice-gw7905-2x")
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Jan Höppner says:
====================
The tape device driver is limited to a block size of 65535 bytes since a
single CCW can only transfer up to 64K-1 bytes (The count field is a
16bit value). This series introduces data chaining for all read/write
functions to support block sizes larger than 65535.
The tape device type 3490 (emulated) and 3590/3592 can handle up to
256K. [1]
[1] https://www.ibm.com/docs/en/zos/3.1.0?topic=blksize-system-determined-block-size
====================
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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The tape device type 3590/3592 and emulated 3490 VTS can handle a block
size of up to 256K bytes. Currently the tape device driver is limited to
a block size of 65535 bytes (64K-1). This limitation stems from the
maximum of 65535 bytes of data that can be transferred with one
Channel-Command Word (CCW).
To work around this limitation data chaining is used which uses several
CCW to transfer an entire 256K block of data. A single CCW holds a
maximum of 65535 bytes of data.
Set MAX_BLOCKSIZE to 262144 (= 256K) to allow for data transfers with
larger block sizes. The read_block() and write_block() discipline
functions calculate the number of CCWs required based on the IDAL buffer
array size that was created for a given block size. If there is more
than one CCW required for the data transfer, the new helper function
tape_ccw_dc_idal() is used to build the data chain accordingly.
The Interruption-Repsonse Block (irb) is added to the tape_request
struct so that the tapechar_read/write() functions can analyze what data
was read or written accordingly.
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Reviewed-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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The tape device driver uses a single idal_buffer for I/O. While the
buffer itself can be arbitrary big, the limit for data transfer for a
single Channel-Command Word is at 65535 bytes (64K-1) since the count
field specifying the amount of data designated by the CCW is a 16-bit
unsigned value.
Provide functionality that allocates an array of multiple IDAL buffer
with the limitation mentioned above in mind.
A call to idal_buffer_array_alloc() allocates an array with a certain
amount of IDAL buffers which is determined based on the total size of
@size. Each individual buffer is limited to a size of CCW_MAX_BYTE_COUNT
(65535 bytes).
Add helper functions that determine the size (# of elements) and the
total data size covered by the array as well.
Current users of the single IDAL buffer are adapted to use the new
functions with one buffer to allocate.
The single IDAL buffer is removed from the tape_char_data struct.
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Reviewed-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Currently tapechar_check_idalbuffer() is part of tape_char.c and is used
to ensure the idal buffer is big enough for the requested I/O and
reallocates a new one if required. The same is done in tape_std.c when a
fixed block size is set using the mtsetblk command. This is essentially
duplicate code.
The allocation of the buffer that is required for I/O can be considered
core functionality. Move the idal buffer allocation to tape_core.c,
make it generally available, and reduce code duplication.
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Reviewed-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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