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Searched refs:mantissa (Results 1 – 25 of 44) sorted by relevance

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/drivers/gpu/drm/amd/display/dc/basics/
A Dcustom_float.c32 uint32_t *mantissa, in build_custom_float() argument
45 *mantissa = 0; in build_custom_float()
68 *mantissa = 0; in build_custom_float()
95 *mantissa = dc_fixpt_floor(mantiss); in build_custom_float()
102 uint32_t mantissa, in setup_custom_float() argument
120 if (mantissa & ~mantissa_mask) { in setup_custom_float()
122 mantissa = mantissa_mask; in setup_custom_float()
135 if (mantissa & mask) in setup_custom_float()
162 uint32_t mantissa; in convert_to_custom_float_format() local
166 return build_custom_float(value, format, &negative, &mantissa, &exponenta) && in convert_to_custom_float_format()
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/drivers/gpu/drm/amd/display/dc/sspl/
A Dspl_custom_float.c11 uint32_t *mantissa, in spl_build_custom_float() argument
24 *mantissa = 0; in spl_build_custom_float()
47 *mantissa = 0; in spl_build_custom_float()
74 *mantissa = spl_fixpt_floor(mantiss); in spl_build_custom_float()
81 uint32_t mantissa, in spl_setup_custom_float() argument
99 if (mantissa & ~mantissa_mask) { in spl_setup_custom_float()
101 mantissa = mantissa_mask; in spl_setup_custom_float()
114 if (mantissa & mask) in spl_setup_custom_float()
141 uint32_t mantissa; in spl_convert_to_custom_float_format() local
145 return spl_build_custom_float(value, format, &negative, &mantissa, &exponenta) && in spl_convert_to_custom_float_format()
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A Dspl_custom_float.h18 uint32_t mantissa; member
/drivers/iio/light/
A Dmax44009.c174 int mantissa; in max44009_lux_raw() local
191 return exponent * mantissa; in max44009_lux_raw()
301 int mantissa, exp; in max44009_threshold_byte_from_fraction() local
310 mantissa /= MAX44009_SCALE_NUMERATOR; in max44009_threshold_byte_from_fraction()
316 for (exp = 0; mantissa > 0xff; exp++) in max44009_threshold_byte_from_fraction()
317 mantissa >>= 1; in max44009_threshold_byte_from_fraction()
319 mantissa >>= 4; in max44009_threshold_byte_from_fraction()
320 mantissa &= 0xf; in max44009_threshold_byte_from_fraction()
323 return exp | mantissa; in max44009_threshold_byte_from_fraction()
367 int mantissa, exponent; in max44009_read_threshold() local
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A Dopt3001.c247 u16 mantissa, int *val, int *val2) in opt3001_to_iio_ret() argument
254 ret = whole * (mantissa << exponent); in opt3001_to_iio_ret()
317 u16 mantissa; in opt3001_get_processed() local
430 mantissa = OPT3001_REG_MANTISSA(opt->result); in opt3001_get_processed()
432 opt3001_to_iio_ret(opt, exponent, mantissa, val, val2); in opt3001_get_processed()
573 u16 mantissa; in opt3001_write_event_value() local
594 mantissa = (((val * integer) + (val2 / decimal)) / whole) >> exponent; in opt3001_write_event_value()
596 value = (exponent << 12) | mantissa; in opt3001_write_event_value()
601 opt->high_thresh_mantissa = mantissa; in opt3001_write_event_value()
606 opt->low_thresh_mantissa = mantissa; in opt3001_write_event_value()
A Dopt4001.c148 static u8 opt4001_calculate_crc(u8 exp, u32 mantissa, u8 count) in opt4001_calculate_crc() argument
152 crc = (hweight32(mantissa) + hweight32(exp) + hweight32(count)) % 2; in opt4001_calculate_crc()
153 crc |= ((hweight32(mantissa & 0xAAAAA) + hweight32(exp & 0xA) in opt4001_calculate_crc()
155 crc |= ((hweight32(mantissa & 0x88888) + hweight32(exp & 0x8) in opt4001_calculate_crc()
157 crc |= (hweight32(mantissa & 0x80808) % 2) << 3; in opt4001_calculate_crc()
A Dopt4060.c199 static u8 opt4060_calculate_crc(u8 exp, u32 mantissa, u8 count) in opt4060_calculate_crc() argument
210 crc = (hweight32(mantissa) + hweight32(exp) + hweight32(count)) % 2; in opt4060_calculate_crc()
211 crc |= ((hweight32(mantissa & 0xAAAAA) + hweight32(exp & 0xA) in opt4060_calculate_crc()
213 crc |= ((hweight32(mantissa & 0x88888) + hweight32(exp & 0x8) in opt4060_calculate_crc()
215 crc |= (hweight32(mantissa & 0x80808) % 2) << 3; in opt4060_calculate_crc()
/drivers/hwmon/pmbus/
A Dzl6100.c61 s32 mantissa; in zl6100_l2d() local
65 mantissa = ((s16)((l & 0x7ff) << 5)) >> 5; in zl6100_l2d()
67 val = mantissa; in zl6100_l2d()
85 s16 exponent = 0, mantissa; in zl6100_d2l() local
109 mantissa = DIV_ROUND_CLOSEST(val, 1000); in zl6100_d2l()
112 if (mantissa > 0x3ff) in zl6100_d2l()
113 mantissa = 0x3ff; in zl6100_d2l()
117 mantissa = -mantissa; in zl6100_d2l()
120 return (mantissa & 0x7ff) | ((exponent << 11) & 0xf800); in zl6100_d2l()
A Dmp2993.c39 s16 exponent, mantissa, target_exponent; in mp2993_linear11_exponent_transfer() local
42 mantissa = ((s16)((word & 0x7ff) << 5)) >> 5; in mp2993_linear11_exponent_transfer()
46 mantissa = mantissa << (exponent - target_exponent); in mp2993_linear11_exponent_transfer()
48 mantissa = mantissa >> (target_exponent - exponent); in mp2993_linear11_exponent_transfer()
50 return (mantissa & 0x7ff) | ((expect_exponent << 11) & 0xf800); in mp2993_linear11_exponent_transfer()
A Dbpa-rs600.c49 int ret, exponent, mantissa; in bpa_rs600_read_vin() local
57 mantissa = ret & 0x7ff; in bpa_rs600_read_vin()
60 mantissa >>= 1; in bpa_rs600_read_vin()
62 ret = (exponent << 11) | mantissa; in bpa_rs600_read_vin()
A Dxdpe12284.c29 s32 mantissa; in xdpe122_read_word_data() local
41 mantissa = ((s16)((ret & GENMASK(10, 0)) << 5)) >> 5; in xdpe122_read_word_data()
42 val = mantissa * 1000L; in xdpe122_read_word_data()
A Dmp5990.c59 s32 mantissa; in mp5990_read_word_data() local
72 mantissa = ((s16)((ret & 0x7ff) << 5)) >> 5; in mp5990_read_word_data()
73 ret = mantissa; in mp5990_read_word_data()
A Dmp2856.c78 s16 exponent = 0, mantissa; in val2linear11() local
101 mantissa = clamp_val(DIV_ROUND_CLOSEST_ULL(val, 1000), 0, 0x3ff); in val2linear11()
105 mantissa = -mantissa; in val2linear11()
108 return (mantissa & 0x7ff) | ((exponent << 11) & 0xf800); in val2linear11()
A Dmp2891.c66 s32 mantissa; in mp2891_reg2data_linear11() local
70 mantissa = ((s16)((word & 0x7ff) << 5)) >> 5; in mp2891_reg2data_linear11()
71 val = mantissa; in mp2891_reg2data_linear11()
A Dmp2975.c179 s16 exponent = 0, mantissa; in mp2975_data2reg_linear11() local
198 mantissa = clamp_val(DIV_ROUND_CLOSEST_ULL(val, 1000), 0, 0x3ff); in mp2975_data2reg_linear11()
202 mantissa = -mantissa; in mp2975_data2reg_linear11()
205 return (mantissa & 0x7ff) | ((exponent << 11) & 0xf800); in mp2975_data2reg_linear11()
A Dpmbus_core.c784 s32 mantissa; in pmbus_reg2data_linear() local
789 mantissa = (u16)sensor->data; in pmbus_reg2data_linear()
795 val = mantissa; in pmbus_reg2data_linear()
924 long mantissa; in pmbus_data2reg_ieee754() local
962 mantissa = DIV_ROUND_CLOSEST(val, 1000); in pmbus_data2reg_ieee754()
972 if (mantissa > 0x7ff) in pmbus_data2reg_ieee754()
973 mantissa = 0x7ff; in pmbus_data2reg_ieee754()
974 else if (mantissa < 0x400) in pmbus_data2reg_ieee754()
975 mantissa = 0x400; in pmbus_data2reg_ieee754()
987 s16 exponent = 0, mantissa; in pmbus_data2reg_linear() local
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/drivers/usb/serial/
A Dpl2303.c648 mantissa = baseline / baud; in pl2303_encode_baud_rate_divisor()
649 if (mantissa == 0) in pl2303_encode_baud_rate_divisor()
652 while (mantissa >= 512) { in pl2303_encode_baud_rate_divisor()
654 mantissa >>= 2; /* divide by 4 */ in pl2303_encode_baud_rate_divisor()
658 mantissa = 511; in pl2303_encode_baud_rate_divisor()
666 buf[0] = mantissa & 0xff; in pl2303_encode_baud_rate_divisor()
687 mantissa = baseline / baud; in pl2303_encode_baud_rate_divisor_alt()
688 if (mantissa == 0) in pl2303_encode_baud_rate_divisor_alt()
691 while (mantissa >= 2048) { in pl2303_encode_baud_rate_divisor_alt()
697 mantissa = 2047; in pl2303_encode_baud_rate_divisor_alt()
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/drivers/hid/amd-sfh-hid/sfh1_1/
A Damd_sfh_desc.c137 int fraction, shift, mantissa, sign, exp, zeropre; in amd_sfh_float_to_int() local
139 mantissa = flt32_val & GENMASK(22, 0); in amd_sfh_float_to_int()
143 if (!exp && !mantissa) in amd_sfh_float_to_int()
155 zeropre = (((BIT(23) + mantissa) * 100) >> 23) >> exp; in amd_sfh_float_to_int()
165 flt32_val = BIT(exp) + (mantissa << shift); in amd_sfh_float_to_int()
168 flt32_val = BIT(exp) + (mantissa >> shift); in amd_sfh_float_to_int()
171 fraction = (shift == 0) ? 0 : mantissa & GENMASK(shift - 1, 0); in amd_sfh_float_to_int()
/drivers/iio/chemical/
A Dsps30.c42 int mantissa = val & GENMASK(22, 0); in sps30_float_to_int_clamped() local
48 if (!exp && !mantissa) in sps30_float_to_int_clamped()
54 return ((((1 << 23) + mantissa) * 100) >> 23) >> (-exp); in sps30_float_to_int_clamped()
59 val = (1 << exp) + (mantissa >> shift); in sps30_float_to_int_clamped()
63 fraction = mantissa & GENMASK(shift - 1, 0); in sps30_float_to_int_clamped()
A Dscd30_core.c93 mantissa = float32 & GENMASK(22, 0), in scd30_float_to_fp() local
98 if (!exp && !mantissa) in scd30_float_to_fp()
105 return sign * ((((BIT(23) + mantissa) * 100) >> 23) >> exp); in scd30_float_to_fp()
110 float32 = BIT(exp) + (mantissa >> shift); in scd30_float_to_fp()
111 fraction = mantissa & GENMASK(shift - 1, 0); in scd30_float_to_fp()
/drivers/net/wireless/mediatek/mt76/mt76x0/
A Dphy.c669 u32 mantissa = val << 4; in mt76x0_phy_lin2db() local
673 while (mantissa < BIT(15)) { in mt76x0_phy_lin2db()
674 mantissa <<= 1; in mt76x0_phy_lin2db()
678 while (mantissa > 0xffff) { in mt76x0_phy_lin2db()
679 mantissa >>= 1; in mt76x0_phy_lin2db()
685 if (mantissa <= 47104) in mt76x0_phy_lin2db()
686 data = mantissa + (mantissa >> 3) + (mantissa >> 4) - 38400; in mt76x0_phy_lin2db()
688 data = mantissa - (mantissa >> 3) - (mantissa >> 6) - 23040; in mt76x0_phy_lin2db()
/drivers/clk/ti/
A Ddpll3xxx.c305 u32 v, ctrl, mod_freq_divider, exponent, mantissa; in omap3_noncore_dpll_ssc_program() local
326 mantissa = mod_freq_divider; in omap3_noncore_dpll_ssc_program()
327 while ((mantissa > 127) && (exponent < 7)) { in omap3_noncore_dpll_ssc_program()
329 mantissa /= 2; in omap3_noncore_dpll_ssc_program()
331 if (mantissa > 127) in omap3_noncore_dpll_ssc_program()
332 mantissa = 127; in omap3_noncore_dpll_ssc_program()
336 v |= mantissa << __ffs(dd->ssc_modfreq_mant_mask); in omap3_noncore_dpll_ssc_program()
/drivers/isdn/mISDN/
A Ddsp_audio.c124 int sign, exponent, mantissa; in linear2ulaw() local
135 mantissa = (sample >> (exponent + 3)) & 0x0F; in linear2ulaw()
136 ulawbyte = ~(sign | (exponent << 4) | mantissa); in linear2ulaw()
/drivers/md/bcache/
A Dutil.h550 unsigned int mantissa = 1 << fract_bits; /* Implicit bit */ in fract_exp_two() local
552 mantissa += x & (mantissa - 1); in fract_exp_two()
555 return mantissa << x >> fract_bits; in fract_exp_two()
/drivers/net/ethernet/marvell/octeontx2/nic/
A Dotx2_tc.c91 u32 *mantissa, u32 *div_exp) in otx2_get_egress_rate_cfg() argument
112 *mantissa = tmp * 2; in otx2_get_egress_rate_cfg()
114 *mantissa = tmp / (1ULL << (*exp - 7)); in otx2_get_egress_rate_cfg()
118 *mantissa = MAX_RATE_MANTISSA; in otx2_get_egress_rate_cfg()
126 u32 exp, mantissa, div_exp; in otx2_get_txschq_rate_regval() local
131 otx2_get_egress_rate_cfg(maxrate, &exp, &mantissa, &div_exp); in otx2_get_txschq_rate_regval()
138 FIELD_PREP(TLX_RATE_MANTISSA, mantissa) | BIT_ULL(0); in otx2_get_txschq_rate_regval()
144 FIELD_PREP(TLX_RATE_MANTISSA, mantissa) | BIT_ULL(0); in otx2_get_txschq_rate_regval()

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