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Searched refs:prescaler (Results 1 – 25 of 48) sorted by relevance

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/kernel/linux/linux-5.10/drivers/pwm/
Dpwm-sl28cpld.c54 #define SL28CPLD_PWM_MAX_DUTY_CYCLE(prescaler) (1 << (7 - (prescaler))) argument
55 #define SL28CPLD_PWM_PERIOD(prescaler) \ argument
56 (NSEC_PER_SEC / SL28CPLD_PWM_CLK * SL28CPLD_PWM_MAX_DUTY_CYCLE(prescaler))
96 int prescaler; in sl28cpld_pwm_get_state() local
102 prescaler = FIELD_GET(SL28CPLD_PWM_CTRL_PRESCALER_MASK, reg); in sl28cpld_pwm_get_state()
103 state->period = SL28CPLD_PWM_PERIOD(prescaler); in sl28cpld_pwm_get_state()
124 unsigned int cycle, prescaler; in sl28cpld_pwm_apply() local
137 prescaler = DIV_ROUND_UP_ULL(SL28CPLD_PWM_PERIOD(0), state->period); in sl28cpld_pwm_apply()
138 prescaler = order_base_2(prescaler); in sl28cpld_pwm_apply()
140 if (prescaler > field_max(SL28CPLD_PWM_CTRL_PRESCALER_MASK)) in sl28cpld_pwm_apply()
[all …]
Dpwm-sun4i.c119 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()
174 unsigned int prescaler = 0; in sun4i_pwm_calculate() local
190 prescaler = PWM_PRESCAL_MASK; in sun4i_pwm_calculate()
199 prescaler = 0; in sun4i_pwm_calculate()
202 if (prescaler == 0) { in sun4i_pwm_calculate()
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Dpwm-renesas-tpu.c76 unsigned int prescaler; member
176 pwm->prescaler); in tpu_pwm_timer_start()
225 pwm->prescaler = 0; in tpu_pwm_request()
250 unsigned int prescaler; in tpu_pwm_config() local
263 for (prescaler = 0; prescaler < ARRAY_SIZE(prescalers); ++prescaler) { in tpu_pwm_config()
264 period = clk_rate / prescalers[prescaler] in tpu_pwm_config()
270 if (prescaler == ARRAY_SIZE(prescalers) || period == 0) { in tpu_pwm_config()
276 duty = clk_rate / prescalers[prescaler] in tpu_pwm_config()
286 clk_rate, prescalers[prescaler], period, duty); in tpu_pwm_config()
288 if (pwm->prescaler == prescaler && pwm->period == period) in tpu_pwm_config()
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Dpwm-rockchip.c49 unsigned int prescaler; member
78 tmp *= pc->data->prescaler * NSEC_PER_SEC; in rockchip_pwm_get_state()
82 tmp *= pc->data->prescaler * NSEC_PER_SEC; in rockchip_pwm_get_state()
113 pc->data->prescaler * NSEC_PER_SEC); in rockchip_pwm_config()
116 duty = DIV_ROUND_CLOSEST_ULL(div, pc->data->prescaler * NSEC_PER_SEC); in rockchip_pwm_config()
229 .prescaler = 2,
242 .prescaler = 1,
256 .prescaler = 1,
270 .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.c326 unsigned int prescaler = 0; in stm32_pwm_config() local
336 prescaler++; in stm32_pwm_config()
338 do_div(div, prescaler + 1); in stm32_pwm_config()
343 if (prescaler > MAX_TIM_PSC) in stm32_pwm_config()
356 if ((psc != prescaler) || (arr != prd - 1)) in stm32_pwm_config()
360 regmap_write(priv->regmap, TIM_PSC, prescaler); in stm32_pwm_config()
/kernel/linux/linux-5.10/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()
Dtimer-ti-dm.c612 int prescaler) in omap_dm_timer_set_prescaler() argument
616 if (unlikely(!timer) || prescaler < -1 || prescaler > 7) in omap_dm_timer_set_prescaler()
622 if (prescaler >= 0) { in omap_dm_timer_set_prescaler()
624 l |= prescaler << 2; in omap_dm_timer_set_prescaler()
/kernel/linux/linux-5.10/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()
353 wdt->prescaler = CDNS_WDT_PRESCALE_512; in cdns_wdt_probe()
356 wdt->prescaler = CDNS_WDT_PRESCALE_4096; in cdns_wdt_probe()
Dkempld_wdt.c135 u32 prescaler; in kempld_wdt_set_stage_timeout() local
141 prescaler = kempld_prescaler[PRESCALER_21]; in kempld_wdt_set_stage_timeout()
147 remainder = do_div(stage_timeout64, prescaler); in kempld_wdt_set_stage_timeout()
177 u32 prescaler; in kempld_wdt_get_timeout() local
186 prescaler = kempld_prescaler[STAGE_CFG_GET_PRESCALER(stage_cfg)]; in kempld_wdt_get_timeout()
188 stage_timeout = (stage_timeout & stage->mask) * prescaler; in kempld_wdt_get_timeout()
/kernel/linux/linux-5.10/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()
/kernel/linux/linux-5.10/Documentation/ABI/testing/
Dsysfs-bus-counter-ftm-quaddec9 What: /sys/bus/counter/devices/counterX/countY/prescaler
13 Configure the prescaler value associated with Count Y.
15 prescaler (i.e. a counter). This acts like a clock
/kernel/linux/linux-5.10/Documentation/devicetree/bindings/power/supply/
Dltc2941.txt16 - lltc,prescaler-exponent: The prescaler exponent as explained in the datasheet.
27 lltc,prescaler-exponent = <5>; /* 2^(2*5) = 1024 */
/kernel/linux/linux-5.10/arch/powerpc/kernel/
Dudbg_16550.c126 unsigned int dll, dlm, divisor, prescaler, speed; in udbg_probe_uart_speed() local
141 prescaler = 4; in udbg_probe_uart_speed()
143 prescaler = 1; in udbg_probe_uart_speed()
149 speed = (clock / prescaler) / (divisor * 16); in udbg_probe_uart_speed()
/kernel/linux/linux-5.10/drivers/i2c/busses/
Di2c-mpc.c439 u32 prescaler = 1; in mpc_i2c_get_prescaler_8xxx() local
454 prescaler = 1; in mpc_i2c_get_prescaler_8xxx()
458 prescaler = mpc_i2c_get_sec_cfg_8xxx() ? 3 : 2; in mpc_i2c_get_prescaler_8xxx()
461 prescaler = 2; in mpc_i2c_get_prescaler_8xxx()
464 return prescaler; in mpc_i2c_get_prescaler_8xxx()
471 u32 prescaler = mpc_i2c_get_prescaler_8xxx(); in mpc_i2c_get_fdr_8xxx() local
477 *real_clk = fsl_get_sys_freq() / prescaler / (16 * 3072); in mpc_i2c_get_fdr_8xxx()
481 divider = fsl_get_sys_freq() / clock / prescaler; in mpc_i2c_get_fdr_8xxx()
496 *real_clk = fsl_get_sys_freq() / prescaler / div->divider; in mpc_i2c_get_fdr_8xxx()
/kernel/linux/linux-5.10/drivers/thermal/st/
Dstm_thermal.c203 u32 prescaler; in stm_thermal_calibration() local
210 prescaler = 0; in stm_thermal_calibration()
213 while (prescaler <= clk_freq) in stm_thermal_calibration()
214 prescaler++; in stm_thermal_calibration()
223 value |= (prescaler << HSREF_CLK_DIV_POS); in stm_thermal_calibration()
/kernel/linux/linux-5.10/arch/arm/mach-omap2/
Dvc.c477 u32 prescaler; in omap4_calc_volt_ramp() local
486 prescaler = 0; in omap4_calc_volt_ramp()
493 prescaler++; in omap4_calc_volt_ramp()
499 prescaler++; in omap4_calc_volt_ramp()
505 prescaler++; in omap4_calc_volt_ramp()
517 return (prescaler << OMAP4430_RAMP_UP_PRESCAL_SHIFT) | in omap4_calc_volt_ramp()
/kernel/linux/linux-5.10/drivers/iio/frequency/
Dadf4350.c139 u32 div_gcd, prescaler, chspc; in adf4350_set_freq() local
147 prescaler = ADF4350_REG1_PRESCALER; in adf4350_set_freq()
150 prescaler = 0; in adf4350_set_freq()
204 1 << st->r4_rf_div_sel, prescaler ? "8/9" : "4/5", in adf4350_set_freq()
212 prescaler; in adf4350_set_freq()
/kernel/linux/linux-5.10/drivers/mmc/host/
Dmxcmmc.c793 int prescaler = 0; in mxcmci_set_clk_rate() local
796 while (prescaler <= 0x800) { in mxcmci_set_clk_rate()
802 if (prescaler) in mxcmci_set_clk_rate()
803 x /= (prescaler * 2); in mxcmci_set_clk_rate()
811 if (prescaler == 0) in mxcmci_set_clk_rate()
812 prescaler = 1; in mxcmci_set_clk_rate()
814 prescaler <<= 1; in mxcmci_set_clk_rate()
817 mxcmci_writew(host, (prescaler << 4) | divider, MMC_REG_CLK_RATE); in mxcmci_set_clk_rate()
820 prescaler, divider, clk_in, clk_ios); in mxcmci_set_clk_rate()
Ds3cmci.h31 u8 prescaler; member
/kernel/linux/linux-5.10/drivers/usb/serial/
Dkeyspan.c69 u8 *prescaler, int portnum);
73 u8 *prescaler, int portnum);
77 u8 *prescaler, int portnum);
81 u8 *prescaler, int portnum);
196 u8 *rate_hi, u8 *rate_low, u8 *prescaler,
1861 u8 *rate_low, u8 *prescaler, int portnum) in keyspan_usa19_calc_baud() argument
1902 u8 *rate_low, u8 *prescaler, int portnum) in keyspan_usa19hs_calc_baud() argument
1938 u8 *rate_low, u8 *prescaler, int portnum) in keyspan_usa19w_calc_baud() argument
1992 if (prescaler) { in keyspan_usa19w_calc_baud()
1993 *prescaler = best_prescaler; in keyspan_usa19w_calc_baud()
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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

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