1NVIDIA compliant embedded controller 2 3Required properties: 4- compatible : should be "nvidia,nvec". 5- reg : the iomem of the i2c slave controller 6- interrupts : the interrupt line of the i2c slave controller 7- clock-frequency : the frequency of the i2c bus 8- gpios : the gpio used for ec request 9- slave-addr: the i2c address of the slave controller 10