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The LP55xx range of devices have an internal charge pump which can (automatically) increase the output voltage towards the LED's, boosting the output voltage to 4.5V. Implement this option from the devicetree. When the setting is not present it will operate in automatic mode as before. Tested on LP55231. Datasheet analysis shows that LP5521, LP5523 and LP8501 are identical in topology and are modified in the same way. Signed-off-by: Maarten Zanders <maarten.zanders@mind.be> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230421075305.37597-3-maarten.zanders@mind.be |
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