GMBUS0
GMBUS_REG_WRITE(GMBUS0 + reg_offset, bus->reg0);
GMBUS_REG_WRITE(GMBUS0 + reg_offset, 0);
GMBUS_REG_WRITE(GMBUS0 + reg_offset, 0);
GMBUS_REG_WRITE(GMBUS0, 0);
intel_de_write(display, GMBUS0(display), 0);
intel_de_write_fw(display, GMBUS0(display),
intel_de_write_fw(display, GMBUS0(display), gmbus0_reg);
intel_de_write_fw(display, GMBUS0(display), gmbus0_source | bus->reg0);
intel_de_write_fw(display, GMBUS0(display), 0);
intel_de_write_fw(display, GMBUS0(display), 0);
intel_de_write_fw(display, GMBUS0(display), 0);