DDC_CTRL
regmap_write(ddc->regs, DDC_CTRL,
regmap_update_bits(ddc->regs, DDC_CTRL, DDC_CTRL_CMD,
regmap_update_bits(ddc->regs, DDC_CTRL, DDC_CTRL_CMD,
regmap_write(ddc->regs, DDC_CTRL,
regmap_write(ddc->regs, DDC_CTRL,
regmap_update_bits(ddc->regs, DDC_CTRL, DDC_CTRL_CMD,
regmap_update_bits(ddc->regs, DDC_CTRL, DDC_CTRL_CMD,
regmap_read(ddc->regs, DDC_CTRL, &ddc_ctrl);