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Searched refs:prescaler (Results 1 – 25 of 31) sorted by relevance

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/linux/drivers/pwm/
H A 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))
99 int prescaler; in sl28cpld_pwm_get_state() local
105 prescaler = FIELD_GET(SL28CPLD_PWM_CTRL_PRESCALER_MASK, reg); in sl28cpld_pwm_get_state()
106 state->period = SL28CPLD_PWM_PERIOD(prescaler); in sl28cpld_pwm_get_state()
129 unsigned int cycle, prescaler; in sl28cpld_pwm_apply() local
142 prescaler = DIV_ROUND_UP_ULL(SL28CPLD_PWM_PERIOD(0), state->period); in sl28cpld_pwm_apply()
143 prescaler = order_base_2(prescaler); in sl28cpld_pwm_apply()
145 if (prescaler > field_max(SL28CPLD_PWM_CTRL_PRESCALER_MASK)) in sl28cpld_pwm_apply()
[all …]
H A Dpwm-sun4i.c114 unsigned int prescaler; in sun4i_pwm_get_state() local
138 prescaler = 1; in sun4i_pwm_get_state()
140 prescaler = prescaler_table[PWM_REG_PRESCAL(val, pwm->hwpwm)]; in sun4i_pwm_get_state()
142 if (prescaler == 0) in sun4i_pwm_get_state()
158 tmp = (u64)prescaler * NSEC_PER_SEC * PWM_REG_DTY(val); in sun4i_pwm_get_state()
161 tmp = (u64)prescaler * NSEC_PER_SEC * PWM_REG_PRD(val); in sun4i_pwm_get_state()
173 unsigned int prescaler = 0; in sun4i_pwm_calculate() local
189 prescaler = PWM_PRESCAL_MASK; in sun4i_pwm_calculate()
198 prescaler = 0; in sun4i_pwm_calculate()
201 if (prescaler == 0) { in sun4i_pwm_calculate()
[all …]
H A Dpwm-renesas-tpu.c75 unsigned int prescaler; member
178 tpd->prescaler); in tpu_pwm_timer_start()
225 tpd->prescaler = 0; in tpu_pwm_request()
247 unsigned int prescaler; in tpu_pwm_config() local
281 prescaler = 0; in tpu_pwm_config()
285 prescaler = 1; in tpu_pwm_config()
289 prescaler = 2; in tpu_pwm_config()
293 prescaler = 3; in tpu_pwm_config()
300 period >>= 2 * prescaler; in tpu_pwm_config()
304 (u64)NSEC_PER_SEC << (2 * prescaler)); in tpu_pwm_config()
[all …]
H A Dpwm-rockchip.c50 unsigned int prescaler; member
66 u64 prescaled_ns = (u64)pc->data->prescaler * NSEC_PER_SEC; in rockchip_pwm_get_state()
109 u64 prescaled_ns = (u64)pc->data->prescaler * NSEC_PER_SEC; in rockchip_pwm_config()
246 .prescaler = 2,
259 .prescaler = 1,
273 .prescaler = 1,
287 .prescaler = 1,
/linux/drivers/tty/serial/8250/
H A D8250_ni.c72 u8 prescaler; member
160 u8 prescaler) in ni16550_config_prescaler() argument
182 serial_out(up, UART_ICR, prescaler); in ni16550_config_prescaler()
283 unsigned int prescaler; in ni16550_probe() local
347 prescaler = info->prescaler; in ni16550_probe()
348 device_property_read_u32(dev, "clock-prescaler", &prescaler); in ni16550_probe()
349 if (prescaler) { in ni16550_probe()
351 ni16550_config_prescaler(uart, (u8)prescaler); in ni16550_probe()
418 .prescaler = 0x09,
425 .prescaler = 0x09,
/linux/drivers/clocksource/
H A 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()
H A Darm_global_timer.c342 unsigned long prescaler; member
353 { .compatible = "ti,am43", .prescaler = 50 },
354 { .compatible = "xlnx,zynq-7000", .prescaler = 2 },
367 return config->prescaler; in gt_get_initial_prescaler_value()
H A Dtimer-ti-dm.c940 int prescaler) in omap_dm_timer_set_prescaler() argument
948 if (unlikely(!timer) || prescaler < -1 || prescaler > 7) in omap_dm_timer_set_prescaler()
958 if (prescaler >= 0) { in omap_dm_timer_set_prescaler()
960 l |= prescaler << 2; in omap_dm_timer_set_prescaler()
/linux/arch/powerpc/sysdev/
H A 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/drivers/watchdog/
H A Dmpc8xxx_wdt.c44 int prescaler; member
188 ddata->swtc = min(ddata->wdd.timeout * freq / wdt_type->prescaler, in mpc8xxx_wdt_probe()
199 ddata->wdd.max_hw_heartbeat_ms = (ddata->swtc * wdt_type->prescaler) / in mpc8xxx_wdt_probe()
221 .prescaler = 0x10000,
228 .prescaler = 0x10000,
236 .prescaler = 0x800,
H A 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()
H A 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/drivers/rtc/
H A 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/drivers/i2c/busses/
H A Di2c-mpc.c394 u32 prescaler = 1; in mpc_i2c_get_prescaler_8xxx() local
409 prescaler = 1; in mpc_i2c_get_prescaler_8xxx()
413 prescaler = mpc_i2c_get_sec_cfg_8xxx() ? 3 : 2; in mpc_i2c_get_prescaler_8xxx()
416 prescaler = 2; in mpc_i2c_get_prescaler_8xxx()
419 return prescaler; in mpc_i2c_get_prescaler_8xxx()
426 u32 prescaler = mpc_i2c_get_prescaler_8xxx(); in mpc_i2c_get_fdr_8xxx() local
432 *real_clk = fsl_get_sys_freq() / prescaler / (16 * 3072); in mpc_i2c_get_fdr_8xxx()
436 divider = fsl_get_sys_freq() / clock / prescaler; in mpc_i2c_get_fdr_8xxx()
451 *real_clk = fsl_get_sys_freq() / prescaler / div->divider; in mpc_i2c_get_fdr_8xxx()
/linux/arch/arm/mach-omap2/
H A 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/drivers/usb/serial/
H A 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,
1844 u8 *rate_low, u8 *prescaler, int portnum) in keyspan_usa19_calc_baud() argument
1885 u8 *rate_low, u8 *prescaler, int portnum) in keyspan_usa19hs_calc_baud() argument
1921 u8 *rate_low, u8 *prescaler, int portnum) in keyspan_usa19w_calc_baud() argument
1975 if (prescaler) { in keyspan_usa19w_calc_baud()
1976 *prescaler = best_prescaler; in keyspan_usa19w_calc_baud()
[all …]
H A Dkeyspan_usa26msg.h155 prescaler; // BOTH: specified as N/8; values 8-ff are valid member
H A Dkeyspan_usa67msg.h153 prescaler; // specified as N/8; values 8-ff are valid member
H A Dkeyspan_usa49msg.h143 prescaler, // specified as N/8; values 8-ff are valid member
/linux/drivers/mmc/host/
H A Dmxcmmc.c789 int prescaler = 0; in mxcmci_set_clk_rate() local
792 while (prescaler <= 0x800) { in mxcmci_set_clk_rate()
798 if (prescaler) in mxcmci_set_clk_rate()
799 x /= (prescaler * 2); in mxcmci_set_clk_rate()
807 if (prescaler == 0) in mxcmci_set_clk_rate()
808 prescaler = 1; in mxcmci_set_clk_rate()
810 prescaler <<= 1; in mxcmci_set_clk_rate()
813 mxcmci_writew(host, (prescaler << 4) | divider, MMC_REG_CLK_RATE); in mxcmci_set_clk_rate()
816 prescaler, divider, clk_in, clk_ios); in mxcmci_set_clk_rate()
/linux/drivers/counter/
H A Dstm32-timer-cnt.c245 struct counter_count *count, u64 *prescaler) in stm32_count_prescaler_read() argument
252 *prescaler = psc + 1; in stm32_count_prescaler_read()
258 struct counter_count *count, u64 prescaler) in stm32_count_prescaler_write() argument
263 if (!prescaler || prescaler > MAX_TIM_PSC + 1) in stm32_count_prescaler_write()
266 psc = prescaler - 1; in stm32_count_prescaler_write()
H A 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()
/linux/drivers/iio/frequency/
H A Dadf4350.c145 u32 div_gcd, prescaler, chspc; in adf4350_set_freq() local
166 prescaler = ADF4350_REG1_PRESCALER; in adf4350_set_freq()
169 prescaler = 0; in adf4350_set_freq()
216 1 << st->r4_rf_div_sel, prescaler ? "8/9" : "4/5", in adf4350_set_freq()
224 prescaler; in adf4350_set_freq()
/linux/drivers/iio/trigger/
H A Dstm32-timer-trigger.c126 int prescaler = 0, ret; in stm32_timer_start() local
141 prescaler++; in stm32_timer_start()
143 do_div(div, (prescaler + 1)); in stm32_timer_start()
147 if (prescaler > MAX_TIM_PSC) { in stm32_timer_start()
165 regmap_write(priv->regmap, TIM_PSC, prescaler); in stm32_timer_start()
/linux/include/linux/platform_data/
H A Ddmtimer-omap.h42 int (*set_prescaler)(struct omap_dm_timer *timer, int prescaler);

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