Allow backlight duty cycle limit #10260
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Pending other backlight drivers, documentation. |
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Description
Needed to be able to apply a limit to the backlighting duty cycle -- breadboard testing of using QMK's backlight code to control an LCD backlight showed it was pulling 80mA, but in circuit with SMT components it showed it was capable of pulling 400mA per LCD.
Artificially limiting the duty cycle allows controlling max brightness instead of messing about with current limiting circuits, much like the RGB limit constants we already have.
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