For all LED drivers, the underlying subsystem is automatically selected
in Kconfig if their compatible node is found in DT.
The only exception is the PWM LED driver which depends on PWM instead
of selecting it. The PWM Kconfig option must be explicitely selected in
order to have LED_PWM enabled.
This patch updates the Kconfig of the PWM LED driver to have the same
behavior as other LED drivers: PWM is now automatically selected if a
"pwm-leds" compatible node is found in DT.
Signed-off-by: Simon Guinot <simon.guinot@seagate.com>
* Utilize DT_HAS_<COMPAT>_ENABLED for devicetree based drivers
* Move to using select I2C' instead of 'depends on'
(see commit df81fef944 for
more details)
Signed-off-by: Kumar Gala <galak@kernel.org>
This driver supports the PWM driven LEDs. The devices are created from
the DT nodes with a compatible property matching "pwm-leds". For each
child node a LED is created and its "pwms" phandle's node is used to
retrieve the PWM configuration: channel, period and flags. If some of
this properties are missing (it is the case for some PWM controllers),
then reasonable default values are used.
This driver implements the following LED API methods:
- led_on
- led_off
- led_blink
- led_set_brightness
Signed-off-by: Simon Guinot <simon.guinot@seagate.com>
