Add devicetree binding for Richtek RT6190 4-Switch buckboost controller.
Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1667183334-16511-2-git-send-email-u0084500@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>