LCD供電用這個電源:
修改kernel_imx\arch\arm\mach-mx5\mx51_babbage_pmic_mc13892.c
static struct regulator_init_data vvideo_init = {
.constraints = {
.name = "VVIDEO",
.min_uV = mV_to_uV(2775),
.max_uV = mV_to_uV(2775),
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_STATUS,
.apply_uV = 1,
.boot_on = 1, 增加這兩個變量
.always_on = 1,
},
.num_consumer_supplies = ARRAY_SIZE(vvideo_consumers),
.consumer_supplies = vvideo_consumers,
};