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Searched refs:prescaler (Results 1 – 25 of 54) sorted by relevance

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/OK3568_Linux_fs/kernel/drivers/pwm/
H A 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()
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H A 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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H A 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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H A Dpwm-rockchip.c86 unsigned int prescaler; member
119 tmp *= dclk_div * pc->data->prescaler * NSEC_PER_SEC; in rockchip_pwm_get_state()
123 tmp *= dclk_div * pc->data->prescaler * NSEC_PER_SEC; in rockchip_pwm_get_state()
189 period = DIV_ROUND_CLOSEST_ULL(div, dclk_div * pc->data->prescaler * NSEC_PER_SEC); in rockchip_pwm_config()
192 duty = DIV_ROUND_CLOSEST_ULL(div, dclk_div * pc->data->prescaler * NSEC_PER_SEC); in rockchip_pwm_config()
379 .prescaler = 2,
394 .prescaler = 1,
410 .prescaler = 1,
426 .prescaler = 1,
H A 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()
H A 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()
/OK3568_Linux_fs/u-boot/arch/arm/cpu/armv7/s5p-common/
H A Dpwm.c121 unsigned int offset, prescaler; in pwm_init() local
130 prescaler = PRESCALER_0; in pwm_init()
132 val |= (prescaler & 0xff); in pwm_init()
134 prescaler = PRESCALER_1; in pwm_init()
136 val |= (prescaler & 0xff) << 8; in pwm_init()
153 ((prescaler + 1) * (1 << div)); in pwm_init()
/OK3568_Linux_fs/u-boot/drivers/pwm/
H A Drk_pwm.c24 unsigned int prescaler; member
86 priv->data->prescaler * 1000000); in rk_pwm_set_config()
88 priv->data->prescaler * 1000000); in rk_pwm_set_config()
186 .prescaler = 2,
201 .prescaler = 1,
217 .prescaler = 1,
233 .prescaler = 1,
H A Dexynos_pwm.c26 unsigned int offset, prescaler; in exynos_pwm_set_config() local
37 prescaler = (channel < 2 ? val : (val >> 8)) & 0xff; in exynos_pwm_set_config()
40 rate = get_pwm_clk() / ((prescaler + 1) * (1 << div)); in exynos_pwm_set_config()
/OK3568_Linux_fs/kernel/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()
/OK3568_Linux_fs/kernel/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()
/OK3568_Linux_fs/kernel/drivers/watchdog/
H A 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,
H A 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()
H A 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()
/OK3568_Linux_fs/kernel/Documentation/ABI/testing/
H A 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
/OK3568_Linux_fs/u-boot/drivers/spi/
H A Dstm32_qspi.c550 u32 prescaler = 255; in stm32_qspi_set_speed() local
552 prescaler = DIV_ROUND_UP(qspi_clk, speed) - 1; in stm32_qspi_set_speed()
553 if (prescaler > 255) in stm32_qspi_set_speed()
554 prescaler = 255; in stm32_qspi_set_speed()
555 else if (prescaler < 0) in stm32_qspi_set_speed()
556 prescaler = 0; in stm32_qspi_set_speed()
559 u32 csht = DIV_ROUND_UP((5 * qspi_clk) / (prescaler + 1), 100000000); in stm32_qspi_set_speed()
567 prescaler << STM32_QSPI_CR_PRESCALER_SHIFT); in stm32_qspi_set_speed()
575 (qspi_clk / (prescaler + 1))); in stm32_qspi_set_speed()
H A Dcf_spi.c194 int prescaler[] = { 2, 3, 5, 7 }; in cfspi_setup_slave() local
205 tmp = (prescaler[3] * scaler[15]); in cfspi_setup_slave()
216 (cfslave->baudrate > (gd->bus_clk / (prescaler[0] * scaler[0])))) { in cfspi_setup_slave()
254 pbrcnt = sizeof(prescaler) / sizeof(int); in cfspi_setup_slave()
259 baud_speed = gd->bus_clk / prescaler[i]; in cfspi_setup_slave()
/OK3568_Linux_fs/u-boot/drivers/mmc/
H A Dmxcmmc.c424 int prescaler = 0; in mxcmci_set_clk_rate() local
427 while (prescaler <= 0x800) { in mxcmci_set_clk_rate()
433 if (prescaler) in mxcmci_set_clk_rate()
434 x /= (prescaler * 2); in mxcmci_set_clk_rate()
442 if (prescaler == 0) in mxcmci_set_clk_rate()
443 prescaler = 1; in mxcmci_set_clk_rate()
445 prescaler <<= 1; in mxcmci_set_clk_rate()
448 writel((prescaler << 4) | divider, &host->base->clk_rate); in mxcmci_set_clk_rate()
/OK3568_Linux_fs/u-boot/arch/arm/mach-imx/
H A Dtimer.c20 unsigned int prescaler; member
96 &cur_gpt->prescaler); in timer_init()
102 __raw_writel(0, &cur_gpt->prescaler); /* 32Khz */ in timer_init()
/OK3568_Linux_fs/kernel/arch/powerpc/kernel/
H A 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()
/OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/power/supply/
H A Dltc2941.txt16 - lltc,prescaler-exponent: The prescaler exponent as explained in the datasheet.
27 lltc,prescaler-exponent = <5>; /* 2^(2*5) = 1024 */
/OK3568_Linux_fs/kernel/drivers/i2c/busses/
H A 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()
/OK3568_Linux_fs/u-boot/drivers/i2c/
H A Domap24xx_i2c.c68 unsigned int prescaler; in omap24_i2c_findpsc() local
90 prescaler = fclk / internal_clk; in omap24_i2c_findpsc()
91 prescaler = prescaler - 1; in omap24_i2c_findpsc()
107 __func__, speed, prescaler, *pscl, *psch); in omap24_i2c_findpsc()
109 if (*pscl <= 0 || *psch <= 0 || prescaler <= 0) in omap24_i2c_findpsc()
112 return prescaler; in omap24_i2c_findpsc()
/OK3568_Linux_fs/kernel/drivers/thermal/st/
H A 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()
/OK3568_Linux_fs/kernel/arch/arm/mach-omap2/
H A 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()

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