582  *    => (6.44 * ch1 / gain1 + 19.088 * ch0 / gain0 -
583  *       0.47808 * ch1 * ch1 * gain0 / gain1 / gain1 / ch0) /
589  *    => (1.91232 * ch1 / gain1 + 30.5408 * ch0 / gain0 +
590  *        [0 * ch1 * ch1 * gain0 / gain1 / gain1 / ch0] ) /
595  *	 A * ch1 * ch1 * gain0 / (ch0 * gain1 * gain1) +
597  *	 C * ch0 / gain0
644 static u64 bu27034_fixp_calc_t1_64bit(unsigned int coeff, unsigned int ch0,  in bu27034_fixp_calc_t1_64bit()  argument
654 	if (helper > ch0) {  in bu27034_fixp_calc_t1_64bit()
657 		return gain_mul_div_helper(helper64, gain0, ch0);  in bu27034_fixp_calc_t1_64bit()
660 	do_div(helper64, ch0);  in bu27034_fixp_calc_t1_64bit()
666 static u64 bu27034_fixp_calc_t1(unsigned int coeff, unsigned int ch0,  in bu27034_fixp_calc_t1()  argument
683 		return bu27034_fixp_calc_t1_64bit(coeff, ch0, ch1, gain0, gain1);  in bu27034_fixp_calc_t1()
686 		return bu27034_fixp_calc_t1_64bit(coeff, ch0, ch1, gain0, gain1);  in bu27034_fixp_calc_t1()
688 	return tmp / (gain1 * gain1) / ch0;  in bu27034_fixp_calc_t1()
707 static int bu27034_fixp_calc_lx(unsigned int ch0, unsigned int ch1,  in bu27034_fixp_calc_lx()  argument
731 	terms[0] = bu27034_fixp_calc_t1(c->A, ch0, ch1, gain0, gain1);  in bu27034_fixp_calc_lx()
733 	terms[2] = bu27034_fixp_calc_t23(c->C, ch0, gain0);  in bu27034_fixp_calc_lx()
899 	u16 ch0, ch1;  in bu27034_calc_mlux()  local
910 	ch0 = max_t(u16, 1, le16_to_cpu(res[0]));  in bu27034_calc_mlux()
931 		unsigned int div = (unsigned int)ch0 * gain1;  in bu27034_calc_mlux()
936 		d1_d0_ratio_scaled /= ch0 * gain1;  in bu27034_calc_mlux()
940 		ret = bu27034_fixp_calc_lx(ch0, ch1, gain0, gain1, meastime, 0);  in bu27034_calc_mlux()
942 		ret = bu27034_fixp_calc_lx(ch0, ch1, gain0, gain1, meastime, 1);  in bu27034_calc_mlux()
1206 			 * 55mS data ch0 = 0xffff ch1 = 0xffff fits in 26 bits  in bu27034_buffer_thread()