This implements volume control for the pwm-beeper via sysfs.
The first patch changes the devicetree documentation from txt to yaml.
The original author of the volume support patches is Frieder Schrempf.
I picked them from this [0] LKML thread from 2017. Since it looks like
his email address changed in the meantime I changed it in the Author
and Signed-off-by, as well as in the copyright statements.
I did some minor changes on the patches that they apply and work with
the current kernel.
checkpatch still reports warnings regarding the changes:
* from txt to yaml of the devicetree documentation:
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
WARNING: DT binding docs and includes should be a separate patch.
* and the introduction of Documentation/ABI/testing/sysfs-devices-pwm-beeper:
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
I am not sure how to fix these warnings. So any suggestion would be helpful.
Changes since v8 [1]:
* yaml devicetree doc:
* reordered patches to introduce dt-bindings before usage
* drop quotes from $id and $schema references
* amp-supply: simplify description
* examples: remove unneeded amp device node
* use -bp suffix for volume-levels and default-volume
* specify default-volume as value instead of pointer into volume-array
* fixup to work with new dt-binding specification
* squash patches as suggested by Frieder
Changes since v7 [2]:
* yaml devicetree doc:
* Use shorter subject
* Fix indent
* Use units
* 'make dt_binding_check' succeeds
* 'make dtbs_check' does not report new errors
* Reworded commit messages avoiding 'this patch' phrase
* Fix wrong indent in [PATCH 5/5 v7] input: pwm-beeper: handle module unloading properly
* Use current date in Documentation/ABI/testing/sysfs-devices-pwm-beeper
* Hopefully fixed my setup that
* mails are CC'ed correctly
* patches are sent as replies to the cover letter
Changes since v6 [3]:
* Convert devicetree binding documentation from txt to yaml
* Use DEVICE_ATTR_[RO|RW] properly
* Change Frieders Mail address
* Added Signed-off and Tested-by statements
* Fix module unloading
Frieder Schrempf (2):
input: pwm-beeper: add feature to set volume via sysfs
input: pwm-beeper: set volume levels by devicetree
Manuel Traut (2):
dt-bindings: input: pwm-beeper: Convert txt bindings to yaml
dt-bindings: input: pwm-beeper: add volume
.../ABI/testing/sysfs-devices-pwm-beeper | 17 +++
.../devicetree/bindings/input/pwm-beeper.txt | 24 ----
.../devicetree/bindings/input/pwm-beeper.yaml | 56 ++++++++
drivers/input/misc/pwm-beeper.c | 135 +++++++++++++++++-
4 files changed, 206 insertions(+), 26 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-devices-pwm-beeper
delete mode 100644 Documentation/devicetree/bindings/input/pwm-beeper.txt
create mode 100644 Documentation/devicetree/bindings/input/pwm-beeper.yaml
[0] https://lore.kernel.org/all/cover.1487323753.git.frieder.schrempf@xxxxxxxxx/
[1] https://lore.kernel.org/lkml/20230126091825.220646-1-manuel.traut@xxxxxx/
[2] https://lore.kernel.org/all/Y9AIq3cSNzI9T%2FdU@xxxxxx/
[3] https://lkml.org/lkml/2023/1/24/379
--
2.39.0
