linux.git/drivers/platform/surface, branch v6.12.80

move asm/unaligned.h to linux/unaligned.h

2024-10-02T21:23:23+00:00

asm/unaligned.h is always an include of asm-generic/unaligned.h;
might as well move that thing to linux/unaligned.h and include
that - there's nothing arch-specific in that header.

auto-generated by the following:

for i in `git grep -l -w asm/unaligned.h`; do
	sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i
done
for i in `git grep -l -w asm-generic/unaligned.h`; do
	sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i
done
git mv include/asm-generic/unaligned.h include/linux/unaligned.h
git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h
sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild
sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h

[tree-wide] finally take no_llseek out

2024-09-27T15:18:43+00:00

no_llseek had been defined to NULL two years ago, in commit 868941b14441
("fs: remove no_llseek")

To quote that commit,

  At -rc1 we'll need do a mechanical removal of no_llseek -

  git grep -l -w no_llseek | grep -v porting.rst | while read i; do
	sed -i '/\/d' $i
  done

  would do it.

Unfortunately, that hadn't been done.  Linus, could you do that now, so
that we could finally put that thing to rest? All instances are of the
form
	.llseek = no_llseek,
so it's obviously safe.

Signed-off-by: Al Viro 
Signed-off-by: Linus Torvalds

Merge tag 'hwmon-for-v6.11-rc7' into review-hans

2024-09-05T14:57:36+00:00

Merge "hwmon fixes for v6.11-rc7" into review-hans to bring in
commit a54da9df75cd ("hwmon: (hp-wmi-sensors) Check if WMI event
data exists").

This is a dependency for a set of WMI event data refactoring changes.

platform/surface: Add OF support

2024-08-19T11:53:48+00:00

Add basic support for registering the aggregator module on Device Tree-
based platforms. These include at least three generations of Qualcomm
Snapdragon-based Surface devices:

- SC8180X / SQ1 / SQ2: Pro X,
- SC8280XP / SQ3: Devkit 2023, Pro 9
- X Elite: Laptop 7 / Pro11

Thankfully, the aggregators on these seem to be configured in an
identical way, which allows for using these settings as defaults and
no DT properties need to be introduced (until that changes, anyway).

Based on the work done by Maximilian Luz, largely rewritten.

Signed-off-by: Konrad Dybcio 
Reviewed-by: Maximilian Luz 
Tested-by: Maximilian Luz 
Link: https://lore.kernel.org/r/20240814-topic-sam-v3-3-a84588aad233@quicinc.com
Reviewed-by: Hans de Goede 
Signed-off-by: Hans de Goede

platform/surface: aggregator: Fix warning when controller is destroyed in probe

2024-08-13T08:20:19+00:00

There is a small window in ssam_serial_hub_probe() where the controller
is initialized but has not been started yet. Specifically, between
ssam_controller_init() and ssam_controller_start(). Any failure in this
window, for example caused by a failure of serdev_device_open(),
currently results in an incorrect warning being emitted.

In particular, any failure in this window results in the controller
being destroyed via ssam_controller_destroy(). This function checks the
state of the controller and, in an attempt to validate that the
controller has been cleanly shut down before we try and deallocate any
resources, emits a warning if that state is not SSAM_CONTROLLER_STOPPED.

However, since we have only just initialized the controller and have not
yet started it, its state is SSAM_CONTROLLER_INITIALIZED. Note that this
is the only point at which the controller has this state, as it will
change after we start the controller with ssam_controller_start() and
never revert back. Further, at this point no communication has taken
place and the sender and receiver threads have not been started yet (and
we may not even have an open serdev device either).

Therefore, it is perfectly safe to call ssam_controller_destroy() with a
state of SSAM_CONTROLLER_INITIALIZED. This, however, means that the
warning currently being emitted is incorrect. Fix it by extending the
check.

Fixes: c167b9c7e3d6 ("platform/surface: Add Surface Aggregator subsystem")
Signed-off-by: Maximilian Luz 
Link: https://lore.kernel.org/r/20240811124645.246016-1-luzmaximilian@gmail.com
Reviewed-by: Ilpo Järvinen 
Signed-off-by: Ilpo Järvinen

platform/surface: aggregator_registry: Add support for Surface Laptop 6

2024-08-13T08:01:20+00:00

Add SAM client device nodes for the Surface Laptop Studio 6 (SL6). The
SL6 is similar to the SL5, with the typical battery/AC, platform
profile, and HID nodes. It also has support for the newly supported fan
interface.

Signed-off-by: Maximilian Luz 
Link: https://lore.kernel.org/r/20240811131948.261806-6-luzmaximilian@gmail.com
Reviewed-by: Ilpo Järvinen 
Signed-off-by: Ilpo Järvinen

platform/surface: aggregator_registry: Add fan and thermal sensor support for Surface Laptop 5

2024-08-13T08:01:18+00:00

The EC on the Surface Laptop 5 exposes the fan interface. With the
recently introduced driver for it, we can now also enable it here. In
addition, also enable the thermal sensor interface.

Signed-off-by: Maximilian Luz 
Link: https://lore.kernel.org/r/20240811131948.261806-5-luzmaximilian@gmail.com
Reviewed-by: Ilpo Järvinen 
Signed-off-by: Ilpo Järvinen

platform/surface: aggregator_registry: Add support for Surface Laptop Studio 2

2024-08-13T08:01:16+00:00

Add SAM client device nodes for the Surface Laptop Studio 2 (SLS2). The
SLS2 is quite similar to the SLS1, but it does not provide the touchpad
as a SAM-HID device. Therefore, add a new node group for the SLS2 and
update the comments accordingly. In addition, it uses the new fan
control interface.

Signed-off-by: Maximilian Luz 
Link: https://lore.kernel.org/r/20240811131948.261806-4-luzmaximilian@gmail.com
Reviewed-by: Ilpo Järvinen 
Signed-off-by: Ilpo Järvinen

platform/surface: aggregator_registry: Add support for Surface Laptop Go 3

2024-08-13T08:01:14+00:00

Add SAM client device nodes for the Surface Laptop Go 3. It seems to use
the same SAM client devices as the Surface Laptop Go 1 and 2, so re-use
their node group.

Signed-off-by: Maximilian Luz 
Link: https://lore.kernel.org/r/20240811131948.261806-3-luzmaximilian@gmail.com
Reviewed-by: Ilpo Järvinen 
Signed-off-by: Ilpo Järvinen

platform/surface: aggregator_registry: Add Support for Surface Pro 10

2024-08-13T08:01:11+00:00

Add SAM client device nodes for the Surface Pro 10. It seems to use the
same SAM client devices as the Surface Pro 9, so re-use its node group.

Signed-off-by: Maximilian Luz 
Link: https://lore.kernel.org/r/20240811131948.261806-2-luzmaximilian@gmail.com
Reviewed-by: Ilpo Järvinen 
Signed-off-by: Ilpo Järvinen