Am Samstag, 17. Juni 2023, 12:12:17 CEST schrieb Krzysztof Kozlowski: > On 14/06/2023 21:08, Maximilian Weigand wrote: > > From: Maximilian Weigand <mweigand@xxxxxxxxxxxx> > > > > Add 'ti,boost_use_1mhz' to switch between 500 kHz and 1 MHz boost > > converter switching frequency, and add 'ti,boost_frequency_shift' to > > activate a frequency shift to 560 kHz or 1.12 MHz, respectively. > > > > Signed-off-by: Maximilian Weigand <mweigand@xxxxxxxxxxxx> > > --- > > .../bindings/leds/backlight/lm3630a-backlight.yaml | 12 ++++++++++++ > > 1 file changed, 12 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.yaml b/Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.yaml > > index 3c9b4054ed9a..ef7ea0ad2d25 100644 > > --- a/Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.yaml > > +++ b/Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.yaml > > @@ -33,6 +33,18 @@ properties: > > description: GPIO to use to enable/disable the backlight (HWEN pin). > > maxItems: 1 > > > > + ti,boost_use_1mhz: > > No underscores in property names. > > > + description: | > > Do not need '|' unless you need to preserve formatting. > > > + If present, change the boost converter switching frequency from the > > + default 500 kHz to 1 MHz. Refer to data sheet for hardware requirements. > > + type: boolean > > + > > + ti,boost_frequency_shift: > > + description: | > > + If present, change boost converter switching frequency from 500 kHz to > > + 560 kHz or from 1 Mhz to 1.12 Mhz, respectively. > > So just make it a property choosing the frequency, not bools, with > proper unit suffix. i.e. ti,boost-frequency-hz = <x>; with x being 500000, 560000, 1000000, 1120000 with the driver failing when the frequency is not achievable with the two knobs of 1mhz and shift.
