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Searched refs:prescale (Results 1 – 25 of 60) sorted by relevance

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/linux/drivers/iio/adc/
A Dqcom-vadc-common.c417 voltage = voltage * prescale->den; in qcom_vadc_scale_volt()
457 temp = voltage * prescale->den; in qcom_vadc_scale_die_temp()
458 do_div(temp, prescale->num * 2); in qcom_vadc_scale_die_temp()
478 voltage = voltage * prescale->den; in qcom_vadc_scale_chg_temp()
523 voltage *= prescale->den; in qcom_vadc_scale_code_voltage_factor()
524 temp = prescale->num * factor; in qcom_vadc_scale_code_voltage_factor()
565 prescale, data, 1); in qcom_vadc_scale_hw_calib_volt()
578 prescale, data, 1000); in qcom_vadc_scale_hw_calib_therm()
592 prescale, data, 2); in qcom_vadc_scale_hw_calib_die_temp()
607 prescale, data, 1); in qcom_vadc7_scale_hw_calib_die_temp()
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/linux/drivers/clocksource/
A Dingenic-sysost.c96 unsigned int prescale; in ingenic_ost_percpu_timer_recalc_rate() local
100 prescale = FIELD_GET(OSTCCR_PRESCALE1_MASK, prescale); in ingenic_ost_percpu_timer_recalc_rate()
102 return parent_rate >> (prescale * 2); in ingenic_ost_percpu_timer_recalc_rate()
110 unsigned int prescale; in ingenic_ost_global_timer_recalc_rate() local
114 prescale = FIELD_GET(OSTCCR_PRESCALE2_MASK, prescale); in ingenic_ost_global_timer_recalc_rate()
116 return parent_rate >> (prescale * 2); in ingenic_ost_global_timer_recalc_rate()
121 u8 prescale; in ingenic_ost_get_prescale() local
123 for (prescale = 0; prescale < 2; prescale++) in ingenic_ost_get_prescale()
125 return prescale; in ingenic_ost_get_prescale()
134 u8 prescale; in ingenic_ost_round_rate() local
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/linux/drivers/pwm/
A Dpwm-imx-tpm.c70 u8 prescale; member
93 u32 rate, prescale, period_count, clock_unit; in pwm_imx_tpm_round_state() local
100 prescale = 0; in pwm_imx_tpm_round_state()
104 if ((!FIELD_FIT(PWM_IMX_TPM_SC_PS, prescale))) in pwm_imx_tpm_round_state()
106 p->prescale = prescale; in pwm_imx_tpm_round_state()
108 period_count = (clock_unit + ((1 << prescale) >> 1)) >> prescale; in pwm_imx_tpm_round_state()
112 tmp = (u64)period_count << prescale; in pwm_imx_tpm_round_state()
140 u32 rate, val, prescale; in pwm_imx_tpm_get_state() local
149 prescale = FIELD_GET(PWM_IMX_TPM_SC_PS, val); in pwm_imx_tpm_get_state()
151 tmp = (tmp << prescale) * NSEC_PER_SEC; in pwm_imx_tpm_get_state()
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A Dpwm-sprd.c74 u32 val, duty, prescale; in sprd_pwm_get_state() local
104 prescale = val & SPRD_PWM_PRESCALE_MSK; in sprd_pwm_get_state()
105 tmp = (prescale + 1) * NSEC_PER_SEC * SPRD_PWM_MOD_MAX; in sprd_pwm_get_state()
110 tmp = (prescale + 1) * NSEC_PER_SEC * duty; in sprd_pwm_get_state()
122 u32 prescale, duty; in sprd_pwm_config() local
139 prescale = DIV_ROUND_CLOSEST_ULL(tmp, SPRD_PWM_MOD_MAX) - 1; in sprd_pwm_config()
140 if (prescale > SPRD_PWM_PRESCALE_MSK) in sprd_pwm_config()
141 prescale = SPRD_PWM_PRESCALE_MSK; in sprd_pwm_config()
151 sprd_pwm_write(spc, pwm->hwpwm, SPRD_PWM_PRESCALE, prescale); in sprd_pwm_config()
A Dpwm-bcm-iproc.c86 u32 value, prescale; in iproc_pwmc_get_state() local
108 prescale = value >> IPROC_PWM_PRESCALE_SHIFT(pwm->hwpwm); in iproc_pwmc_get_state()
109 prescale &= IPROC_PWM_PRESCALE_MAX; in iproc_pwmc_get_state()
111 multi = NSEC_PER_SEC * (prescale + 1); in iproc_pwmc_get_state()
125 unsigned long prescale = IPROC_PWM_PRESCALE_MIN; in iproc_pwmc_apply() local
145 div = NSEC_PER_SEC * (prescale + 1); in iproc_pwmc_apply()
159 if (++prescale > IPROC_PWM_PRESCALE_MAX) in iproc_pwmc_apply()
168 value |= prescale << IPROC_PWM_PRESCALE_SHIFT(pwm->hwpwm); in iproc_pwmc_apply()
A Dpwm-pxa.c65 unsigned long period_cycles, prescale, pv, dc; in pxa_pwm_config() local
78 prescale = (period_cycles - 1) / 1024; in pxa_pwm_config()
79 pv = period_cycles / (prescale + 1) - 1; in pxa_pwm_config()
81 if (prescale > 63) in pxa_pwm_config()
96 writel(prescale, pc->mmio_base + offset + PWMCR); in pxa_pwm_config()
A Dpwm-vt8500.c77 unsigned long period_cycles, prescale, pv, dc; in vt8500_pwm_config() local
94 prescale = (period_cycles - 1) / 4096; in vt8500_pwm_config()
95 pv = period_cycles / (prescale + 1) - 1; in vt8500_pwm_config()
99 if (prescale > 1023) { in vt8500_pwm_config()
108 writel(prescale, vt8500->base + REG_SCALAR(pwm->hwpwm)); in vt8500_pwm_config()
A Dpwm-imx27.c218 unsigned long period_cycles, duty_cycles, prescale; in pwm_imx27_apply() local
234 prescale = period_cycles / 0x10000 + 1; in pwm_imx27_apply()
236 period_cycles /= prescale; in pwm_imx27_apply()
240 duty_cycles /= prescale; in pwm_imx27_apply()
274 cr = MX3_PWMCR_PRESCALER_SET(prescale) | in pwm_imx27_apply()
A Dpwm-spear.c82 unsigned long prescale = PWMCR_MIN_PRESCALE, pv, dc; in spear_pwm_config() local
98 div *= 1 + prescale; in spear_pwm_config()
113 if (++prescale > PWMCR_MAX_PRESCALE) in spear_pwm_config()
129 prescale << PWMCR_PRESCALE_SHIFT); in spear_pwm_config()
A Dpwm-sti.c123 unsigned int *prescale) in sti_pwm_get_prescale() argument
149 *prescale = ps; in sti_pwm_get_prescale()
168 unsigned int ncfg, value, prescale = 0; in sti_pwm_config() local
204 ret = sti_pwm_get_prescale(pc, period_ns, &prescale); in sti_pwm_config()
208 value = prescale & PWM_PRESCALE_LOW_MASK; in sti_pwm_config()
214 value = (prescale & PWM_PRESCALE_HIGH_MASK) >> 4; in sti_pwm_config()
239 prescale, period_ns, duty_ns, value); in sti_pwm_config()
A Dpwm-bcm-kona.c116 unsigned long prescale = PRESCALE_MIN, pc, dc; in kona_pwmc_config() local
134 div *= 1 + prescale; in kona_pwmc_config()
149 if (++prescale > PRESCALE_MAX) in kona_pwmc_config()
163 value |= prescale << PRESCALE_SHIFT(chan); in kona_pwmc_config()
A Dpwm-pca9685.c367 unsigned long long duty, prescale; in __pca9685_pwm_apply() local
373 prescale = DIV_ROUND_CLOSEST_ULL(PCA9685_OSC_CLOCK_MHZ * state->period, in __pca9685_pwm_apply()
375 if (prescale < PCA9685_PRESCALE_MIN || prescale > PCA9685_PRESCALE_MAX) { in __pca9685_pwm_apply()
386 if (prescale != val) { in __pca9685_pwm_apply()
403 pca9685_write_reg(pca, PCA9685_PRESCALE, prescale); in __pca9685_pwm_apply()
/linux/drivers/clk/ingenic/
A Dtcu.c163 unsigned int prescale; in ingenic_tcu_recalc_rate() local
169 prescale = (prescale & TCU_TCSR_PRESCALE_MASK) >> TCU_TCSR_PRESCALE_LSB; in ingenic_tcu_recalc_rate()
171 return parent_rate >> (prescale * 2); in ingenic_tcu_recalc_rate()
176 u8 prescale; in ingenic_tcu_get_prescale() local
178 for (prescale = 0; prescale < 5; prescale++) in ingenic_tcu_get_prescale()
179 if ((rate >> (prescale * 2)) <= req_rate) in ingenic_tcu_get_prescale()
180 return prescale; in ingenic_tcu_get_prescale()
189 u8 prescale; in ingenic_tcu_round_rate() local
194 prescale = ingenic_tcu_get_prescale(rate, req_rate); in ingenic_tcu_round_rate()
196 return rate >> (prescale * 2); in ingenic_tcu_round_rate()
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/linux/arch/powerpc/platforms/52xx/
A Dmpc52xx_gpt.c389 u32 prescale; in mpc52xx_gpt_do_start() local
423 prescale = (clocks >> 16) + 1; in mpc52xx_gpt_do_start()
424 do_div(clocks, prescale); in mpc52xx_gpt_do_start()
427 prescale, clocks); in mpc52xx_gpt_do_start()
439 out_be32(&gpt->regs->count, prescale << 16 | clocks); in mpc52xx_gpt_do_start()
493 u64 prescale; in mpc52xx_gpt_timer_period() local
500 prescale = period >> 16; in mpc52xx_gpt_timer_period()
502 if (prescale == 0) in mpc52xx_gpt_timer_period()
503 prescale = 0x10000; in mpc52xx_gpt_timer_period()
504 period = period * prescale * 1000000000ULL; in mpc52xx_gpt_timer_period()
/linux/drivers/i2c/busses/
A Di2c-kempld.c226 long prescale; in kempld_i2c_device_init() local
240 prescale = pld->pld_clock / (bus_frequency * 5) - 1000; in kempld_i2c_device_init()
242 prescale = pld->pld_clock / (bus_frequency * 4) - 3000; in kempld_i2c_device_init()
244 if (prescale < 0) in kempld_i2c_device_init()
245 prescale = 0; in kempld_i2c_device_init()
248 prescale_corr = prescale / 1000; in kempld_i2c_device_init()
249 if (prescale % 1000 >= 500) in kempld_i2c_device_init()
A Di2c-imx-lpi2c.c203 u8 prescale, filt, sethold, clkhi, clklo, datavd; in lpi2c_imx_config() local
216 for (prescale = 0; prescale <= 7; prescale++) { in lpi2c_imx_config()
217 clk_cycle = clk_rate / ((1 << prescale) * lpi2c_imx->bitrate) in lpi2c_imx_config()
225 if (prescale > 7) in lpi2c_imx_config()
233 temp = prescale | pincfg << 24; in lpi2c_imx_config()
A Di2c-ocores.c419 int prescale; in ocores_init() local
427 prescale = (i2c->ip_clock_khz / (5 * i2c->bus_clock_khz)) - 1; in ocores_init()
428 prescale = clamp(prescale, 0, 0xffff); in ocores_init()
430 diff = i2c->ip_clock_khz / (5 * (prescale + 1)) - i2c->bus_clock_khz; in ocores_init()
438 oc_setreg(i2c, OCI2C_PRELOW, prescale & 0xff); in ocores_init()
439 oc_setreg(i2c, OCI2C_PREHIGH, prescale >> 8); in ocores_init()
/linux/drivers/gpu/drm/radeon/
A Dradeon_i2c.c234 u32 prescale = 0; in radeon_get_i2c_prescale() local
260 prescale = m | (n << 8); in radeon_get_i2c_prescale()
314 return prescale; in radeon_get_i2c_prescale()
329 u32 prescale; in r100_hw_i2c_xfer() local
337 prescale = radeon_get_i2c_prescale(rdev); in r100_hw_i2c_xfer()
339 reg = ((prescale << RADEON_I2C_PRESCALE_SHIFT) | in r100_hw_i2c_xfer()
582 u32 prescale; in r500_hw_i2c_xfer() local
590 prescale = radeon_get_i2c_prescale(rdev); in r500_hw_i2c_xfer()
677 (prescale << 16))); in r500_hw_i2c_xfer()
719 (prescale << 16))); in r500_hw_i2c_xfer()
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/linux/drivers/comedi/drivers/
A Ddt3000.c345 unsigned int divider, base, prescale; in dt3k_ns_to_timer() local
350 for (prescale = 0; prescale < 16; prescale++) { in dt3k_ns_to_timer()
351 base = timer_base * (prescale + 1); in dt3k_ns_to_timer()
366 return (prescale << 16) | (divider); in dt3k_ns_to_timer()
370 prescale = 15; in dt3k_ns_to_timer()
371 base = timer_base * (prescale + 1); in dt3k_ns_to_timer()
374 return (prescale << 16) | (divider); in dt3k_ns_to_timer()
/linux/drivers/media/i2c/
A Dsaa717x.c807 int task, int prescale) in set_h_prescale() argument
833 if (vals[i].xpsc == prescale) in set_h_prescale()
987 int prescale, h_scale, v_scale; in saa717x_set_fmt() local
1008 prescale = SAA717X_NTSC_WIDTH / fmt->width; in saa717x_set_fmt()
1009 if (prescale == 0) in saa717x_set_fmt()
1010 prescale = 1; in saa717x_set_fmt()
1011 h_scale = 1024 * SAA717X_NTSC_WIDTH / prescale / fmt->width; in saa717x_set_fmt()
1016 set_h_prescale(sd, 0, prescale); in saa717x_set_fmt()
1017 set_h_prescale(sd, 1, prescale); in saa717x_set_fmt()
/linux/drivers/spi/
A Dspi-fsl-lpspi.c89 u8 prescale; member
263 temp |= fsl_lpspi->config.prescale << 27; in fsl_lpspi_set_cmd()
301 u8 prescale; in fsl_lpspi_set_bitrate() local
311 for (prescale = 0; prescale < 8; prescale++) { in fsl_lpspi_set_bitrate()
312 scldiv = perclk_rate / config.speed_hz / (1 << prescale) - 2; in fsl_lpspi_set_bitrate()
314 fsl_lpspi->config.prescale = prescale; in fsl_lpspi_set_bitrate()
326 perclk_rate, config.speed_hz, prescale, scldiv); in fsl_lpspi_set_bitrate()
A Dspi-armada-3700.c222 u32 prescale; in a3700_spi_clock_set() local
224 prescale = DIV_ROUND_UP(clk_get_rate(a3700_spi->clk), speed_hz); in a3700_spi_clock_set()
230 if (prescale > 15) in a3700_spi_clock_set()
231 prescale = A3700_SPI_CLK_EVEN_OFFS + DIV_ROUND_UP(prescale, 2); in a3700_spi_clock_set()
236 val = val | (prescale & A3700_SPI_CLK_PRESCALE_MASK); in a3700_spi_clock_set()
239 if (prescale <= 2) { in a3700_spi_clock_set()
/linux/drivers/media/pci/cobalt/
A Dcobalt-i2c.c309 int prescale; in cobalt_i2c_init() local
315 prescale = ((ALT_CPU_FREQ) / (5 * I2C_FREQUENCY)) - 1; in cobalt_i2c_init()
344 iowrite8(prescale & 0xff, &regs->prerlo); in cobalt_i2c_init()
345 iowrite8((prescale >> 8) & 0xff, &regs->prerhi); in cobalt_i2c_init()
/linux/drivers/video/fbdev/
A Datafb.c899 int prescale; in falcon_decode_var() local
1209 prescale = hxx_prescale(&par->hw.falcon); in falcon_decode_var()
1229 gstart = (prescale / 2 + plen * left_margin) / prescale; in falcon_decode_var()
1233 gend2 = gstart + xres * plen / prescale; in falcon_decode_var()
1235 (2 * prescale) - 2; in falcon_decode_var()
1238 par->HDB = gstart - hdb_off / prescale; in falcon_decode_var()
1250 if (hde_off % prescale) in falcon_decode_var()
1365 int prescale, plen; in falcon_encode_var() local
1465 prescale = hxx_prescale(hw); in falcon_encode_var()
1475 + prescale; in falcon_encode_var()
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/linux/drivers/media/pci/cx88/
A Dcx88-core.c742 static int set_pll(struct cx88_core *core, int prescale, u32 ofreq) in set_pll() argument
749 if (prescale < 2) in set_pll()
750 prescale = 2; in set_pll()
751 if (prescale > 5) in set_pll()
752 prescale = 5; in set_pll()
754 pll = ofreq * 8 * prescale * (u64)(1 << 20); in set_pll()
756 reg = (pll & 0x3ffffff) | (pre[prescale] << 26); in set_pll()
769 prescale, ofreq); in set_pll()
775 dprintk(1, "pll NOT locked [pre=%d,ofreq=%d]\n", prescale, ofreq); in set_pll()

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