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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann:
"The driver updates seem larger this time around, with changes is many
of the SoC specific drivers, both the custom drivers/soc ones and the
closely related subsystems (memory, bus, firmware, reset, ...).
The at91 platform gains support for sam9x7 chips in the soc and power
management code. This is the latest variant of one of the oldest still
supported SoC families, using the ARM9 (ARMv5) core.
As usual, the qualcomm snapdragon platform gets a ton of updates in
many of their drivers to add more features and additional SoC support.
Most of these are somewhat firmware related as the platform has a
number of firmware based interfaces to the kernel. A notable addition
here is the inclusion of trace events to two of these drivers.
Herve Codina and Christophe Leroy are now sending updates for
drivers/soc/fsl/ code through the SoC tree, this contains both PowerPC
and Arm specific platforms and has previously been problematic to
maintain. The first update here contains support for newer PowerPC
variants and some cleanups.
The turris mox firmware driver has a number of updates, mostly
cleanups.
The Arm SCMI firmware driver gets a major rework to modularize the
existing code into separately loadable drivers for the various
transports, the addition of custom NXP i.MX9 interfaces and a number
of smaller updates.
The Arm FF-A firmware driver gets a feature update to support the v1.2
version of the specification.
The reset controller drivers have some smaller cleanups and a newly
added driver for the Intel/Mobileye EyeQ5/EyeQ6 MIPS SoCs.
The memory controller drivers get some cleanups and refactoring for
Tegra, TI, Freescale/NXP and a couple more platforms.
Finally there are lots of minor updates to firmware (raspberry pi,
tegra, imx), bus (sunxi, omap, tegra) and soc (rockchips, tegra,
amlogic, mediatek) drivers and their DT bindings"
* tag 'soc-drivers-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (212 commits)
firmware: imx: remove duplicate scmi_imx_misc_ctrl_get()
platform: cznic: turris-omnia-mcu: Fix error check in omnia_mcu_register_trng()
bus: sunxi-rsb: Simplify code with dev_err_probe()
soc: fsl: qe: ucc: Export ucc_mux_set_grant_tsa_bkpt
soc: fsl: cpm1: qmc: Fix dependency on fsl_soc.h
dt-bindings: arm: rockchip: Add rk3576 compatible string to pmu.yaml
soc: fsl: qbman: Remove redundant warnings
soc: fsl: qbman: Use iommu_paging_domain_alloc()
MAINTAINERS: Add QE files related to the Freescale QMC controller
soc: fsl: cpm1: qmc: Handle QUICC Engine (QE) soft-qmc firmware
soc: fsl: cpm1: qmc: Add support for QUICC Engine (QE) implementation
soc: fsl: qe: Add missing PUSHSCHED command
soc: fsl: qe: Add resource-managed muram allocators
soc: fsl: cpm1: qmc: Introduce qmc_version
soc: fsl: cpm1: qmc: Rename SCC_GSMRL_MODE_QMC
soc: fsl: cpm1: qmc: Handle RPACK initialization
soc: fsl: cpm1: qmc: Rename qmc_chan_command()
soc: fsl: cpm1: qmc: Introduce qmc_{init,exit}_xcc() and their CPM1 version
soc: fsl: cpm1: qmc: Introduce qmc_init_resource() and its CPM1 version
soc: fsl: cpm1: qmc: Re-order probe() operations
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs file updates from Christian Brauner:
"This is the work to cleanup and shrink struct file significantly.
Right now, (focusing on x86) struct file is 232 bytes. After this
series struct file will be 184 bytes aka 3 cacheline and a spare 8
bytes for future extensions at the end of the struct.
With struct file being as ubiquitous as it is this should make a
difference for file heavy workloads and allow further optimizations in
the future.
- struct fown_struct was embedded into struct file letting it take up
32 bytes in total when really it shouldn't even be embedded in
struct file in the first place. Instead, actual users of struct
fown_struct now allocate the struct on demand. This frees up 24
bytes.
- Move struct file_ra_state into the union containg the cleanup hooks
and move f_iocb_flags out of the union. This closes a 4 byte hole
we created earlier and brings struct file to 192 bytes. Which means
struct file is 3 cachelines and we managed to shrink it by 40
bytes.
- Reorder struct file so that nothing crosses a cacheline.
I suspect that in the future we will end up reordering some members
to mitigate false sharing issues or just because someone does
actually provide really good perf data.
- Shrinking struct file to 192 bytes is only part of the work.
Files use a slab that is SLAB_TYPESAFE_BY_RCU and when a kmem cache
is created with SLAB_TYPESAFE_BY_RCU the free pointer must be
located outside of the object because the cache doesn't know what
part of the memory can safely be overwritten as it may be needed to
prevent object recycling.
That has the consequence that SLAB_TYPESAFE_BY_RCU may end up
adding a new cacheline.
So this also contains work to add a new kmem_cache_create_rcu()
function that allows the caller to specify an offset where the
freelist pointer is supposed to be placed. Thus avoiding the
implicit addition of a fourth cacheline.
- And finally this removes the f_version member in struct file.
The f_version member isn't particularly well-defined. It is mainly
used as a cookie to detect concurrent seeks when iterating
directories. But it is also abused by some subsystems for
completely unrelated things.
It is mostly a directory and filesystem specific thing that doesn't
really need to live in struct file and with its wonky semantics it
really lacks a specific function.
For pipes, f_version is (ab)used to defer poll notifications until
a write has happened. And struct pipe_inode_info is used by
multiple struct files in their ->private_data so there's no chance
of pushing that down into file->private_data without introducing
another pointer indirection.
But pipes don't rely on f_pos_lock so this adds a union into struct
file encompassing f_pos_lock and a pipe specific f_pipe member that
pipes can use. This union of course can be extended to other file
types and is similar to what we do in struct inode already"
* tag 'vfs-6.12.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (26 commits)
fs: remove f_version
pipe: use f_pipe
fs: add f_pipe
ubifs: store cookie in private data
ufs: store cookie in private data
udf: store cookie in private data
proc: store cookie in private data
ocfs2: store cookie in private data
input: remove f_version abuse
ext4: store cookie in private data
ext2: store cookie in private data
affs: store cookie in private data
fs: add generic_llseek_cookie()
fs: use must_set_pos()
fs: add must_set_pos()
fs: add vfs_setpos_cookie()
s390: remove unused f_version
ceph: remove unused f_version
adi: remove unused f_version
mm: Removed @freeptr_offset to prevent doc warning
...
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The Gen6 devices have the same problem and the same Solution as the Gen5
ones.
Some TongFang barebones have touchpad and/or keyboard issues after
suspend, fixable with nomux + reset + noloop + nopnp. Luckily, none of
them have an external PS/2 port so this can safely be set for all of
them.
I'm not entirely sure if every device listed really needs all four quirks,
but after testing and production use, no negative effects could be
observed when setting all four.
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240910094008.1601230-3-wse@tuxedocomputers.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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There might be devices out in the wild where the board name is GMxXGxx
instead of GMxXGxX.
Adding both to be on the safe side.
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240910094008.1601230-2-wse@tuxedocomputers.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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of_property_present()
There's no need to get the length of an DT array property before
parsing the array. of_property_read_variable_u32_array() takes a
minimum and maximum length and returns the actual length (or error
code).
This is part of a larger effort to remove callers of of_get_property()
and similar functions. of_get_property() leaks the DT property data
pointer which is a problem for dynamically allocated nodes which may
be freed.
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20240913200827.546649-1-robh@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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disable_irq() after request_irq() still has a time gap in which
interrupts can come. request_irq() with IRQF_NO_AUTOEN flag will
disable IRQ auto-enable when request IRQ.
Fixes: 9ee0a0558819 ("Input: PS/2 gpio bit banging driver for serio bus")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://lore.kernel.org/r/20240912033013.2610949-1-ruanjinjie@huawei.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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- drop flags, they were not used anyway
- add OF ID match table
- process "autorepeat", "debounce-delay-ms", prescale from device tree
- drop platform data usage and it's header
- keymap goes from device tree now on
Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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f_version is removed from struct file. Make input stop abusing f_version
for stashing information for poll. Move the input state counter into
input_seq_state and allocate it via seq_private_open() and free via
seq_release_private().
Link: https://lore.kernel.org/r/20240830-vfs-file-f_version-v1-12-6d3e4816aa7b@kernel.org
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Fix calling scoped_cond_guard() with mutex instead of mutex_intr.
scoped_cond_guard(mutex, ...) will call mutex_lock() instead of
mutex_lock_interruptible().
Fixes: 703f12672e1f ("Input: ims-pcu - switch to using cleanup functions")
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://lore.kernel.org/r/20240910-input-misc-ims-pcu-fix-mutex-intr-v1-1-bdd983685c43@baylibre.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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There are some spelling mistakes of 'retun' in comments which
should be instead of 'return'.
Link: https://lkml.kernel.org/r/63D0F870EE8E87A0+20240906054008.390188-1-wangyuli@uniontech.com
Signed-off-by: WangYuli <wangyuli@uniontech.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The driver waits for the device to boot, which can be a lengthy
process. Switch it to asynchronous probing to allow more devices
to be probed simultaneously.
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-19-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The wrappers are extremely simple, used once, and do not bring much
value. Remove them.
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-18-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Stop forcing interrupt to be low level triggered and instead rely on the
platform to define proper trigger to allow flexibility in board designs.
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-17-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The driver does not actively manage regulator state past probe() time,
so we can use devm_regulator_get_enable() to simplify the code.
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-16-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This regulator is not optional from the controller point of view,
so stop treating it as such. For hard-wired designs that omit the
regulator from their device trees regulator subsystem will create
a dummy instance.
This may introduce unnecessary delay of 100us in case of dummy
regulator, but if it is important the driver should be marked as
using asynchronous probing to avoid even longer delays waiting for
the command completions.
Also use usleep_range() instead of udelay() to avoid spinning.
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-15-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The I2C ID table is not supposed to change; mark it as const.
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-14-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Use dev_err_probe() helper to log deferrals in the devices_deferred
debugfs file and avoid extra messages in the logs.
Also rename "ret" variables holding error codes only to "error".
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-13-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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We should abort probe on any error besides -ENOENT which signifies that
the regulator is not defined in device tree or elsewhere, not only
when we see -EPROBE_DEFER.
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-12-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Zforce touch data packet consists of a byte representing number of
contacts followed by several chunks with length of 9 bytes representing
each contact. Instead of accounting for the leading byte by increasing
offset of each field in contacts by one introduce a pointer to contact
data and point it appropriately. This avoids awkward constructs like:
point.prblty = payload[9 * i + 9];
which makes it seem like there is off-by-one error, in favor of more
straightforward:
point.prblty = p[8];
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-11-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Instead of doing conversion from little-endian data to CPU endianness
by hand use existing helpers.
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-10-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Guard notation allows for simpler code and ensures that mutexes are
automatically released in all code paths.
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-9-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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There is a small chance that ts->suspending flag may change while the
interrupt handler is running. To make sure call to pm_relax() is not
skipped on accident use a temporary to hold the original value at the
beginning of interrupt. Use READ_ONCE() so that the value is actually
fetched at the right time.
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-8-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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There is no need to have a lock around calls to i2c_master_send() and
i2c_master_recv() as they are not issued concurrently and they are not
sharing any buffers. Also there is no need for command_mutex as all
commands are issued sequentially.
Remove both.
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-7-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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input_mt_init_slots() can potentially return error which needs to be
handled.
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-6-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Input core and various helpers already do that for us, so drop the code
setting these bits explicitly.
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-5-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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There are no in-tree users of platform data and any new ones should
either use device tree or static device properties, so let's remove
platform data support.
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-4-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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input_mt_report_slot_state() returns true if slot is active, so we can
combine checks for point.state != STATE_UP.
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-3-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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If devm_add_action() fails we are explicitly calling the cleanup to free
the resources allocated. Lets use the helper devm_add_action_or_reset()
and return directly in case of error, as we know that the cleanup
function has been already called by the helper if there was any error.
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-2-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This makes the code more compact and error handling more robust
by ensuring that locks are released in all code paths when control
leaves critical section.
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20240825051627.2848495-18-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Use __free(fwnode_handle) cleanup facility to ensure that references
to acquired fwnodes are dropped at appropriate times automatically.
Reviewed-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/20240825051627.2848495-9-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Start using __free() and guard() primitives to simplify the code
and error handling. This makes the code more compact and error
handling more robust by ensuring that locks are released in all
code paths when control leaves critical section and all allocated
memory is freed.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240825051627.2848495-6-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This makes the code more compact and error handling more robust
by ensuring that mutexes are released in all code paths when control
leaves critical section.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240825051627.2848495-4-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This makes the code more compact and error handling more robust
by ensuring that mutexes are released in all code paths when control
leaves critical section.
Acked-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/ZsrBkWIpyEqzClUG@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Some TongFang barebones have touchpad and/or keyboard issues after
suspend, fixable with nomux + reset + noloop + nopnp. Luckily, none of
them have an external PS/2 port so this can safely be set for all of
them.
I'm not entirely sure if every device listed really needs all four quirks,
but after testing and production use, no negative effects could be
observed when setting all four.
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240905164851.771578-1-wse@tuxedocomputers.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Bring in changes removing support for platform data from matrix-keypad
driver.
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There are no more users of struct matrix_keypad_platform_data in the
kernel, remove support for it from the driver.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240805014710.1961677-6-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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gpiod API and generic device properties work with software nodes and
static properties, which will allow removing platform data support
from the driver, simplifying and streamlining the code.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240805014710.1961677-3-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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There are no users of this functionality in the mainline kernel (it was
only available to boards using platform data and not device tree).
Remove it to simplify the code.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240805014710.1961677-2-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Stop clobbering "item" variable when checking if the device supports
querying DPM values because its original value is still needed in
case when we need to fall back to the old way of figuring sensor size.
Reported-by: Richard Acayan <mailingradian@gmail.com>
Tested-by: Richard Acayan <mailingradian@gmail.com>
Fixes: 14d650fcb7fb ("Input: synaptics-rmi4 - add support for querying DPM value (F12)")
Link: https://lore.kernel.org/r/ZtdQW7nqAOEJDNBN@radian
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/drivers
Arm SCMI updates for v6.12
Few main features include:
1. SCMI transport as stand-alone drivers
Currently the SCMI transport layer is being built embedded into in
the core SCMI stack. Some of these transports, despite being currently
part of the main SCMI module, are indeed also registered with different
subsystems like optee or virtio, and actively probed also by those.
This leads to a few awkward and convoluted tricks to properly handle
such interactions at boot time in the SCMI stack.
This change adds the new logic to the core SCMI stack so that each
existing transport is transitioned to be a standi-alone driver. With
that all the probe deferral and awkward retries between the SCMI
core stack and the transports has been removed, since no more needed.
2. Support for obtaining transport descriptors from the devicetree
SCMI platform firmwares might have different designs depending on
the platform. Some of the transport descriptors rely on such design.
E.g. the maximum receive channel timeout value might vary depending
on the specific underlying hardware and firmware design choices.
This change adds support for max-rx-timeout-ms property to describe
the transport needs of a specific platform design. It will be extended
in the future to obtain other such hardware/firmware dependent
transport related descriptors.
3. NXP i.MX95 specific SCMI vendor protocol extensions
SCMI specification allows vendor or platform-specific extensions to
the interface. NXP i.MX95 System Manager(SM) that implements SCMI
extends the interface to implement couple of vendor/platform specific
protocol, namely:
a. Battery Backed Module(BBM) Protocol
This protocol is intended provide access to the battery-backed
module. This contains persistent storage (GPR), an RTC, and the
ON/OFF button. The protocol can also provide access to similar
functions implemented via external board components.
b. MISC Protocol for misc settings
This includes controls that are misc settings/actions that must
be exposed from the SM to agents. They are device specific and
are usually define to access bit fields in various mix block
control modules, IOMUX_GPR, and other GPR/CSR owned by the SM.
4. SCMI debug/tracking metrics
Since SCMI involves interaction with the entity(software, firmware
and/or hardware) providing services or features, it is quite useful
to track certain metrics(for pure debugging purposes) like how many
messages were sent or received, were there any failures, what kind
of failures, ..etc. This feature adds support for the same via debugfs.
Apart from these main features, there are some miscellaneous updates, fixes
and cleanups.
* tag 'scmi-updates-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: (31 commits)
rtc: support i.MX95 BBM RTC
input: keyboard: support i.MX95 BBM module
firmware: imx: Add i.MX95 MISC driver
firmware: arm_scmi: Add initial support for i.MX MISC protocol
firmware: arm_scmi: Add initial support for i.MX BBM protocol
firmware: arm_scmi: Add NXP i.MX95 SCMI documentation
dt-bindings: firmware: Add i.MX95 SCMI Extension protocol
firmware: arm_scmi: Replace comma with the semicolon
firmware: arm_scmi: Replace the use of of_node_put() to __free(device_node)
firmware: arm_scmi: Fix trivial whitespace/coding style issues
firmware: arm_scmi: Use max-rx-timeout-ms from devicetree
dt-bindings: firmware: arm,scmi: Introduce property max-rx-timeout-ms
firmware: arm_scmi: Remove const from transport descriptors
firmware: arm_scmi: Simplify with scoped for each OF child loop
firmware: arm_scmi: Update various protocols versions
firmware: arm_scmi: Remove legacy transport-layer code
firmware: arm_scmi: Make VirtIO transport a standalone driver
firmware: arm_scmi: Make OPTEE transport a standalone driver
firmware: arm_scmi: Make SMC transport a standalone driver
firmware: arm_scmi: Make MBOX transport a standalone driver
...
Link: https://lore.kernel.org/r/20240830135918.2383664-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The different revisions of the Zinitix BTXXX touchscreens place
the icon status register (to read out touchkey status) in
different places. Use the chip revision bits to discern
between the different versions at runtime.
This makes touchkeys work on the BT404 on the Samsung Codina
GT-I8160 mobile phone.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240830-zinitix-tk-versions-v2-2-90eae6817eda@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The chip hardware revision, firmware version and regdata
revision is needed to discern because for example touchkeys
are handled by different registers on different versions of
the chip. Example output from BT404:
Zinitix-TS 3-0020: chip revision 4040 firmware version 0088
regdata version 0004
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240830-zinitix-tk-versions-v2-1-90eae6817eda@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Switch to using devm_clk_get_optional_enabled() helper instead of
acquiring the clock with devm_clk_get_optional(), enabling it, and
defining and installing a custom devm action to call clk_disable().
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/ZtDDGMaOFlMYjOrt@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fix from Dmitry Torokhov:
- a fix for Cypress PS/2 touchpad for regression introduced in 6.11
merge window where a timeout condition is incorrectly reported for
all extended Cypress commands
* tag 'input-for-v6.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: cypress_ps2 - fix waiting for command response
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This makes the code more compact and error handling more robust
by ensuring that mutexes are released in all code paths when control
leaves critical section.
Acked-by: Henrik Rydberg <rydberg@bitmath.org>
Link: https://lore.kernel.org/r/ZsrBVO2w9WwX73iU@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Use __free(kfree) cleanup facility in matrix_keypad_parse_keymap() to
automatically free temporarily allocated memory.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/ZspoEPdTcH-hpciy@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Commit 8bccf667f62a ("Input: cypress_ps2 - report timeouts when reading
command status") uncovered an existing problem with cypress_ps2 driver:
it tries waiting on a PS/2 device waitqueue without using the rest of
libps2. Unfortunately without it nobody signals wakeup for the
waiting process, and each "extended" command was timing out. But the
rest of the code simply did not notice it.
Fix this by switching from homegrown way of sending request to get
command response and reading it to standard ps2_command() which does
the right thing.
Reported-by: Woody Suwalski <terraluna977@gmail.com>
Tested-by: Woody Suwalski <terraluna977@gmail.com>
Fixes: 8bccf667f62a ("Input: cypress_ps2 - report timeouts when reading command status")
Link: https://lore.kernel.org/r/a8252e0f-dab4-ef5e-2aa1-407a6f4c7204@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Keypad specific setup is relaxed if no keypad rows/columns are specified,
enabling a purely gpio operation.
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Signed-off-by: Utsav Agarwal <utsav.agarwal@analog.com>
Link: https://lore.kernel.org/r/20240826-adp5588_gpio_support-v11-2-3e5ac2bd31b7@analog.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This makes the code more compact and error handling more robust.
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Link: https://lore.kernel.org/r/20240826-adp5588_gpio_support-v11-1-3e5ac2bd31b7@analog.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The BBM module provides BUTTON feature. To i.MX95, this module
is managed by System Manager and exported using System Management
Control Interface(SCMI). Linux could use i.MX SCMI BBM Extension
protocol to use BUTTON feature.
This driver is to use SCMI interface to enable pwrkey.
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Message-Id: <20240823-imx95-bbm-misc-v2-v8-7-e600ed9e9271@nxp.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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