[PATCH v5 0/3] input: pwm-beeper: add feature to set volume level

From: Frieder Schrempf
Date: Fri Feb 17 2017 - 04:55:22 EST

Make the driver accept switching volume levels via sysfs.
This can be helpful if the beep/bell sound intensity needs
to be adapted to the environment of the device.

The number of volume levels available and their values can
be specified via device tree (similar to pwm-backlight).

The volume adjustment is done by changing the duty cycle of
the pwm signal.

Changes in v5:
- fix renaming of max_volume_level to max_volume
- remove needless variable declaration

Frieder Schrempf (3):
input: pwm-beeper: add feature to set volume via sysfs
input: pwm-beeper: add documentation for volume devicetree bindings
input: pwm-beeper: add devicetree bindings to set volume levels

Documentation/ABI/testing/sysfs-devices-pwm-beeper | 17 ++++
.../devicetree/bindings/input/pwm-beeper.txt | 20 ++++
drivers/input/misc/pwm-beeper.c | 110 ++++++++++++++++++++-
3 files changed, 145 insertions(+), 2 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-devices-pwm-beeper