539 static int hi556_write_reg(struct hi556 *hi556, u16 reg, u16 len, u32 val)  in hi556_write_reg()  function
563 		ret = hi556_write_reg(hi556, r_list->regs[i].address,  in hi556_write_reg_list()
581 	ret = hi556_write_reg(hi556, HI556_REG_MWB_GR_GAIN,  in hi556_update_digital_gain()
586 	ret = hi556_write_reg(hi556, HI556_REG_MWB_GB_GAIN,  in hi556_update_digital_gain()
591 	ret = hi556_write_reg(hi556, HI556_REG_MWB_R_GAIN,  in hi556_update_digital_gain()
596 	return hi556_write_reg(hi556, HI556_REG_MWB_B_GAIN,  in hi556_update_digital_gain()
611 		ret = hi556_write_reg(hi556, HI556_REG_ISP,  in hi556_test_pattern()
618 	return hi556_write_reg(hi556, HI556_REG_TEST_PATTERN,  in hi556_test_pattern()
647 		ret = hi556_write_reg(hi556, HI556_REG_ANALOG_GAIN,  in hi556_set_ctrl()
656 		ret = hi556_write_reg(hi556, HI556_REG_EXPOSURE,  in hi556_set_ctrl()
662 		ret = hi556_write_reg(hi556, HI556_REG_FLL,  in hi556_set_ctrl()
785 	ret = hi556_write_reg(hi556, HI556_REG_MODE_SELECT,  in hi556_start_streaming()
800 	if (hi556_write_reg(hi556, HI556_REG_MODE_SELECT,  in hi556_stop_streaming()