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Searched refs:prescaler (Results 1 – 25 of 42) sorted by relevance

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/Linux-v6.6/drivers/pwm/
Dpwm-sl28cpld.c55 #define SL28CPLD_PWM_MAX_DUTY_CYCLE(prescaler) (1 << (7 - (prescaler))) argument
56 #define SL28CPLD_PWM_PERIOD(prescaler) \ argument
57 (NSEC_PER_SEC / SL28CPLD_PWM_CLK * SL28CPLD_PWM_MAX_DUTY_CYCLE(prescaler))
100 int prescaler; in sl28cpld_pwm_get_state() local
106 prescaler = FIELD_GET(SL28CPLD_PWM_CTRL_PRESCALER_MASK, reg); in sl28cpld_pwm_get_state()
107 state->period = SL28CPLD_PWM_PERIOD(prescaler); in sl28cpld_pwm_get_state()
130 unsigned int cycle, prescaler; in sl28cpld_pwm_apply() local
143 prescaler = DIV_ROUND_UP_ULL(SL28CPLD_PWM_PERIOD(0), state->period); in sl28cpld_pwm_apply()
144 prescaler = order_base_2(prescaler); in sl28cpld_pwm_apply()
146 if (prescaler > field_max(SL28CPLD_PWM_CTRL_PRESCALER_MASK)) in sl28cpld_pwm_apply()
[all …]
Dpwm-sun4i.c117 unsigned int prescaler; in sun4i_pwm_get_state() local
141 prescaler = 1; in sun4i_pwm_get_state()
143 prescaler = prescaler_table[PWM_REG_PRESCAL(val, pwm->hwpwm)]; in sun4i_pwm_get_state()
145 if (prescaler == 0) in sun4i_pwm_get_state()
161 tmp = (u64)prescaler * NSEC_PER_SEC * PWM_REG_DTY(val); in sun4i_pwm_get_state()
164 tmp = (u64)prescaler * NSEC_PER_SEC * PWM_REG_PRD(val); in sun4i_pwm_get_state()
176 unsigned int prescaler = 0; in sun4i_pwm_calculate() local
192 prescaler = PWM_PRESCAL_MASK; in sun4i_pwm_calculate()
201 prescaler = 0; in sun4i_pwm_calculate()
204 if (prescaler == 0) { in sun4i_pwm_calculate()
[all …]
Dpwm-renesas-tpu.c76 unsigned int prescaler; member
176 tpd->prescaler); in tpu_pwm_timer_start()
225 tpd->prescaler = 0; in tpu_pwm_request()
249 unsigned int prescaler; in tpu_pwm_config() local
283 prescaler = 0; in tpu_pwm_config()
287 prescaler = 1; in tpu_pwm_config()
291 prescaler = 2; in tpu_pwm_config()
295 prescaler = 3; in tpu_pwm_config()
302 period >>= 2 * prescaler; in tpu_pwm_config()
306 (u64)NSEC_PER_SEC << (2 * prescaler)); in tpu_pwm_config()
[all …]
Dpwm-rockchip.c49 unsigned int prescaler; member
82 tmp *= pc->data->prescaler * NSEC_PER_SEC; in rockchip_pwm_get_state()
86 tmp *= pc->data->prescaler * NSEC_PER_SEC; in rockchip_pwm_get_state()
120 pc->data->prescaler * NSEC_PER_SEC); in rockchip_pwm_config()
123 duty = DIV_ROUND_CLOSEST_ULL(div, pc->data->prescaler * NSEC_PER_SEC); in rockchip_pwm_config()
241 .prescaler = 2,
254 .prescaler = 1,
268 .prescaler = 1,
282 .prescaler = 1,
Dpwm-imx27.c125 u32 period, prescaler, pwm_clk, val; in pwm_imx27_get_state() local
151 prescaler = MX3_PWMCR_PRESCALER_GET(val); in pwm_imx27_get_state()
157 tmp = NSEC_PER_SEC * (u64)(period + 2) * prescaler; in pwm_imx27_get_state()
169 tmp = NSEC_PER_SEC * (u64)(val) * prescaler; in pwm_imx27_get_state()
Dpwm-stm32.c330 unsigned int prescaler = 0; in stm32_pwm_config() local
340 prescaler++; in stm32_pwm_config()
342 do_div(div, prescaler + 1); in stm32_pwm_config()
347 if (prescaler > MAX_TIM_PSC) in stm32_pwm_config()
360 if ((psc != prescaler) || (arr != prd - 1)) in stm32_pwm_config()
364 regmap_write(priv->regmap, TIM_PSC, prescaler); in stm32_pwm_config()
/Linux-v6.6/drivers/clocksource/
Dtimer-stm32.c209 int prescaler = 1; in stm32_timer_set_prescaler() local
212 prescaler = DIV_ROUND_CLOSEST(timer_of_rate(to), in stm32_timer_set_prescaler()
219 prescaler = prescaler < TIM_PSC_MAX ? prescaler : TIM_PSC_MAX; in stm32_timer_set_prescaler()
222 writel_relaxed(prescaler - 1, timer_of_base(to) + TIM_PSC); in stm32_timer_set_prescaler()
227 to->of_clk.rate = DIV_ROUND_CLOSEST(to->of_clk.rate, prescaler); in stm32_timer_set_prescaler()
/Linux-v6.6/drivers/watchdog/
Dmpc8xxx_wdt.c44 int prescaler; member
186 ddata->swtc = min(ddata->wdd.timeout * freq / wdt_type->prescaler, in mpc8xxx_wdt_probe()
197 ddata->wdd.max_hw_heartbeat_ms = (ddata->swtc * wdt_type->prescaler) / in mpc8xxx_wdt_probe()
219 .prescaler = 0x10000,
226 .prescaler = 0x10000,
234 .prescaler = 0x800,
Dcadence_wdt.c78 u32 prescaler; member
186 count = (wdd->timeout * (clock_f / wdt->prescaler)) / in cdns_wdt_start()
338 wdt->prescaler = CDNS_WDT_PRESCALE_512; in cdns_wdt_probe()
341 wdt->prescaler = CDNS_WDT_PRESCALE_4096; in cdns_wdt_probe()
Dkempld_wdt.c133 u32 prescaler; in kempld_wdt_set_stage_timeout() local
139 prescaler = kempld_prescaler[PRESCALER_21]; in kempld_wdt_set_stage_timeout()
145 remainder = do_div(stage_timeout64, prescaler); in kempld_wdt_set_stage_timeout()
175 u32 prescaler; in kempld_wdt_get_timeout() local
184 prescaler = kempld_prescaler[STAGE_CFG_GET_PRESCALER(stage_cfg)]; in kempld_wdt_get_timeout()
186 stage_timeout = (stage_timeout & stage->mask) * prescaler; in kempld_wdt_get_timeout()
/Linux-v6.6/arch/powerpc/sysdev/
Dfsl_gtm.c170 unsigned int prescaler; in gtm_set_ref_timer16() local
181 prescaler = gtm->clock / frequency; in gtm_set_ref_timer16()
187 if (prescaler > max_prescaler) in gtm_set_ref_timer16()
190 if (prescaler > max_prescaler / 16) { in gtm_set_ref_timer16()
192 prescaler /= 16; in gtm_set_ref_timer16()
195 if (prescaler <= 256) { in gtm_set_ref_timer16()
197 sps = prescaler - 1; in gtm_set_ref_timer16()
200 sps = prescaler / 256 - 1; in gtm_set_ref_timer16()
/Linux-v6.6/Documentation/misc-devices/
Doxsemi-tornado.rst11 frequency by dividing it by the clock prescaler, which can be set to any
19 By default the oversampling rate is set to 16 and the clock prescaler is
27 prescaler is programmed with the CPR/CPR2 register pair [OX200]_ [OX952]_
29 the prescaler the enhanced mode has to be explicitly enabled though, by
31 the prescaler or otherwise it is bypassed as if the value of 1 was used.
34 devices that do not have the extra prescaler's 9th bit in CPR2, so the
45 (tcr), the clock prescaler (cpr) and the divisor (div) produced by the
93 used by encoding the values for, the prescaler, the oversampling rate
109 oversampling rate to 16 and prescaler values below 1 in CPR2/CPR are
113 respectively to 0x1f4, 0x0 and 0x04e2, choosing the prescaler value,
/Linux-v6.6/drivers/rtc/
Drtc-mpfs.c219 unsigned long prescaler; in mpfs_rtc_probe() local
260 prescaler = clk_get_rate(devm_clk_get(&pdev->dev, "rtcref")) - 1; in mpfs_rtc_probe()
261 if (prescaler > MAX_PRESCALER_COUNT) { in mpfs_rtc_probe()
262 dev_dbg(&pdev->dev, "invalid prescaler %lu\n", prescaler); in mpfs_rtc_probe()
266 writel(prescaler, rtcdev->base + PRESCALER_REG); in mpfs_rtc_probe()
267 dev_info(&pdev->dev, "prescaler set to: %lu\n", prescaler); in mpfs_rtc_probe()
/Linux-v6.6/arch/powerpc/kernel/
Dudbg_16550.c127 unsigned int dll, dlm, divisor, prescaler, speed; in udbg_probe_uart_speed() local
142 prescaler = 4; in udbg_probe_uart_speed()
144 prescaler = 1; in udbg_probe_uart_speed()
150 speed = (clock / prescaler) / (divisor * 16); in udbg_probe_uart_speed()
/Linux-v6.6/drivers/i2c/busses/
Di2c-mpc.c400 u32 prescaler = 1; in mpc_i2c_get_prescaler_8xxx() local
415 prescaler = 1; in mpc_i2c_get_prescaler_8xxx()
419 prescaler = mpc_i2c_get_sec_cfg_8xxx() ? 3 : 2; in mpc_i2c_get_prescaler_8xxx()
422 prescaler = 2; in mpc_i2c_get_prescaler_8xxx()
425 return prescaler; in mpc_i2c_get_prescaler_8xxx()
432 u32 prescaler = mpc_i2c_get_prescaler_8xxx(); in mpc_i2c_get_fdr_8xxx() local
438 *real_clk = fsl_get_sys_freq() / prescaler / (16 * 3072); in mpc_i2c_get_fdr_8xxx()
442 divider = fsl_get_sys_freq() / clock / prescaler; in mpc_i2c_get_fdr_8xxx()
457 *real_clk = fsl_get_sys_freq() / prescaler / div->divider; in mpc_i2c_get_fdr_8xxx()
/Linux-v6.6/drivers/thermal/st/
Dstm_thermal.c200 u32 prescaler; in stm_thermal_calibration() local
207 prescaler = 0; in stm_thermal_calibration()
210 while (prescaler <= clk_freq) in stm_thermal_calibration()
211 prescaler++; in stm_thermal_calibration()
220 value |= (prescaler << HSREF_CLK_DIV_POS); in stm_thermal_calibration()
/Linux-v6.6/arch/arm/mach-omap2/
Dvc.c474 u32 prescaler; in omap4_calc_volt_ramp() local
483 prescaler = 0; in omap4_calc_volt_ramp()
490 prescaler++; in omap4_calc_volt_ramp()
496 prescaler++; in omap4_calc_volt_ramp()
502 prescaler++; in omap4_calc_volt_ramp()
514 return (prescaler << OMAP4430_RAMP_UP_PRESCAL_SHIFT) | in omap4_calc_volt_ramp()
/Linux-v6.6/drivers/iio/frequency/
Dadf4350.c140 u32 div_gcd, prescaler, chspc; in adf4350_set_freq() local
148 prescaler = ADF4350_REG1_PRESCALER; in adf4350_set_freq()
151 prescaler = 0; in adf4350_set_freq()
205 1 << st->r4_rf_div_sel, prescaler ? "8/9" : "4/5", in adf4350_set_freq()
213 prescaler; in adf4350_set_freq()
/Linux-v6.6/drivers/mmc/host/
Dmxcmmc.c776 int prescaler = 0; in mxcmci_set_clk_rate() local
779 while (prescaler <= 0x800) { in mxcmci_set_clk_rate()
785 if (prescaler) in mxcmci_set_clk_rate()
786 x /= (prescaler * 2); in mxcmci_set_clk_rate()
794 if (prescaler == 0) in mxcmci_set_clk_rate()
795 prescaler = 1; in mxcmci_set_clk_rate()
797 prescaler <<= 1; in mxcmci_set_clk_rate()
800 mxcmci_writew(host, (prescaler << 4) | divider, MMC_REG_CLK_RATE); in mxcmci_set_clk_rate()
803 prescaler, divider, clk_in, clk_ios); in mxcmci_set_clk_rate()
/Linux-v6.6/drivers/usb/serial/
Dkeyspan.c49 u8 *prescaler, int portnum);
53 u8 *prescaler, int portnum);
57 u8 *prescaler, int portnum);
61 u8 *prescaler, int portnum);
176 u8 *rate_hi, u8 *rate_low, u8 *prescaler,
1845 u8 *rate_low, u8 *prescaler, int portnum) in keyspan_usa19_calc_baud() argument
1886 u8 *rate_low, u8 *prescaler, int portnum) in keyspan_usa19hs_calc_baud() argument
1922 u8 *rate_low, u8 *prescaler, int portnum) in keyspan_usa19w_calc_baud() argument
1976 if (prescaler) { in keyspan_usa19w_calc_baud()
1977 *prescaler = best_prescaler; in keyspan_usa19w_calc_baud()
[all …]
Dkeyspan_usa26msg.h155 prescaler; // BOTH: specified as N/8; values 8-ff are valid member
Dkeyspan_usa49msg.h143 prescaler, // specified as N/8; values 8-ff are valid member
Dkeyspan_usa67msg.h153 prescaler; // specified as N/8; values 8-ff are valid member
/Linux-v6.6/drivers/iio/trigger/
Dstm32-timer-trigger.c122 int prescaler = 0; in stm32_timer_start() local
137 prescaler++; in stm32_timer_start()
139 do_div(div, (prescaler + 1)); in stm32_timer_start()
143 if (prescaler > MAX_TIM_PSC) { in stm32_timer_start()
159 regmap_write(priv->regmap, TIM_PSC, prescaler); in stm32_timer_start()
/Linux-v6.6/drivers/counter/
D104-quad-8.c1003 u8 *prescaler) in quad8_signal_fck_prescaler_read() argument
1007 *prescaler = priv->fck_prescaler[signal->id / 2]; in quad8_signal_fck_prescaler_read()
1013 const u8 prescaler) in quad8_filter_clock_prescaler_set() argument
1020 ret = regmap_write(priv->map, QUAD8_DATA(id), prescaler); in quad8_filter_clock_prescaler_set()
1028 u8 prescaler) in quad8_signal_fck_prescaler_write() argument
1037 priv->fck_prescaler[channel_id] = prescaler; in quad8_signal_fck_prescaler_write()
1038 ret = quad8_filter_clock_prescaler_set(priv, channel_id, prescaler); in quad8_signal_fck_prescaler_write()

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