HPD_DDC_CTRL
regmap_update_bits(ddc->regs, HPD_DDC_CTRL, HPD_DDC_DELAY_CNT,
regmap_read(ddc->regs, HPD_DDC_CTRL, &val);
regmap_read(ddc->regs, HPD_DDC_CTRL, &hpd_ddc_ctrl);
regmap_update_bits(ddc->regs, HPD_DDC_CTRL, HPD_DDC_DELAY_CNT,
regmap_set_bits(hdmi->regs, HPD_DDC_CTRL,