GRL_CFG4
regmap_clear_bits(hdmi->regs, GRL_CFG4, CTRL_AVMUTE);
regmap_set_bits(hdmi->regs, GRL_CFG4, CTRL_AVMUTE);
regmap_update_bits(hdmi->regs, GRL_CFG4, CFG4_AV_UNMUTE_EN | CFG4_AV_UNMUTE_SET,
regmap_update_bits(hdmi->regs, GRL_CFG4, CFG4_AV_UNMUTE_EN | CFG4_AV_UNMUTE_SET,
regmap_clear_bits(hdmi->regs, GRL_CFG4, CFG4_MHL_MODE);