This patch remove the following two not-required properties from the
"required" section:
- max-brightness
- default brightness
These properties are not really required, so they can be removed from the
"required" section.
The "max-brightness" is no longer used in the current version
of the driver (it was used only in the first version).
The "default-brightness", if omitted in the DT, is managed by the
device driver, using a default value. This value depends on the dimming
mode used:
- for the "analog mode", via I2C commands, this value is fixed by
hardware (=31);
- while in case of pwm mode the default used is the last value of the
brightness-levels array.
Also the brightness-levels array is not required:
- in "analog mode", via I2C commands, the brightness-level array is
fixed by hardware (0..31);
- in pwm dimming mode, the driver uses a default array of 0..255 and
the "default-brightness" is the last one, which is "255".
NOTE: there are no compatibility problems with the previous version,
since the device driver has not yet been included in any kernel.
Only this dt-binding yaml file is already included in the
"for-backlight-next" branch of the "backlight" kernel repository.
No developer may have used it.
Other changes:
- improve the backlight working mode descripion in the "description"
section
- update the example, removing the "max-brightness" and introducing the
"brightess-levels" property
NOTE: the "brightess-levels" property is present in the last version of the
common.yaml file, so it is not decalared here.
For this last version of common.yaml file, see my patch:
[1/1] dt-bindings: backlight: add brightness-levels related common
properties
commit: d5272d39995f4150062a67e6f2cef556edece740
Flavio Suligoi (1):
dt-bindings: backlight: mp3309c: remove two required properties
.../bindings/leds/backlight/mps,mp3309c.yaml | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
--
2.34.1
