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Searched refs:duty_cycle (Results 1 - 25 of 172) sorted by relevance

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/kernel/linux/linux-6.6/drivers/pwm/
H A Dpwm-raspberrypi-poe.c8 * - No disable bit, so a disabled PWM is simulated by duty_cycle 0
31 unsigned int duty_cycle; member
92 state->duty_cycle = DIV_ROUND_UP(rpipwm->duty_cycle * RPI_PWM_PERIOD_NS, in raspberrypi_pwm_get_state()
94 state->enabled = !!(rpipwm->duty_cycle); in raspberrypi_pwm_get_state()
104 unsigned int duty_cycle; in raspberrypi_pwm_apply() local
112 duty_cycle = 0; in raspberrypi_pwm_apply()
113 else if (state->duty_cycle < RPI_PWM_PERIOD_NS) in raspberrypi_pwm_apply()
114 duty_cycle = DIV_ROUND_DOWN_ULL(state->duty_cycle * RPI_PWM_MAX_DUT in raspberrypi_pwm_apply()
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H A Dpwm-visconti.c50 u32 period, duty_cycle, pwmc0; in visconti_pwm_apply() local
68 if (state->duty_cycle > period) in visconti_pwm_apply()
69 duty_cycle = period; in visconti_pwm_apply()
71 duty_cycle = state->duty_cycle; in visconti_pwm_apply()
79 duty_cycle /= 1000; in visconti_pwm_apply()
95 duty_cycle >>= pwmc0; in visconti_pwm_apply()
100 writel(duty_cycle, priv->base + PIPGM_PDUT(pwm->hwpwm)); in visconti_pwm_apply()
118 state->duty_cycle = (duty << pwmc0_clk) * NSEC_PER_USEC; in visconti_pwm_get_state()
H A Dcore.c413 * best effort inverted .polarity and fixed .duty_cycle respectively. in pwm_apply_state_debug()
418 s2.duty_cycle = s1.period - s1.duty_cycle; in pwm_apply_state_debug()
426 state->duty_cycle < state->period) in pwm_apply_state_debug()
445 last->duty_cycle > s2.duty_cycle && in pwm_apply_state_debug()
446 last->duty_cycle <= state->duty_cycle) in pwm_apply_state_debug()
449 state->duty_cycle, state->period, in pwm_apply_state_debug()
450 s2.duty_cycle, s in pwm_apply_state_debug()
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H A Dpwm-cros-ec.c35 * @duty_cycle: cached duty cycle
38 u16 duty_cycle; member
162 u16 duty_cycle; in cros_ec_pwm_apply() local
176 duty_cycle = state->enabled ? state->duty_cycle : 0; in cros_ec_pwm_apply()
178 ret = cros_ec_pwm_set_duty(ec_pwm, pwm->hwpwm, duty_cycle); in cros_ec_pwm_apply()
182 channel->duty_cycle = state->duty_cycle; in cros_ec_pwm_apply()
210 * For the case of the initial hardware readout, channel->duty_cycle in cros_ec_pwm_get_state()
213 if (ret == 0 && channel->duty_cycle > in cros_ec_pwm_get_state()
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H A Dpwm-twl-led.c22 * - A request for .duty_cycle = 0 results in an output wave with one active
77 int duty_cycle = DIV_ROUND_UP(duty_ns * TWL4030_LED_MAX, period_ns) + 1; in twl4030_pwmled_config() local
92 if (duty_cycle == 1) in twl4030_pwmled_config()
93 duty_cycle = 2; in twl4030_pwmled_config()
94 else if (duty_cycle > TWL4030_LED_MAX) in twl4030_pwmled_config()
95 duty_cycle = 1; in twl4030_pwmled_config()
99 pwm_config[1] = duty_cycle; in twl4030_pwmled_config()
173 * pwm->state.period && state->duty_cycle == pwm->state.duty_cycle in twl4030_pwmled_apply()
179 state->duty_cycle, stat in twl4030_pwmled_apply()
198 int duty_cycle = (duty_ns * TWL6030_LED_MAX) / period_ns; twl6030_pwmled_config() local
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H A Dpwm-sl28cpld.c75 #define SL28CPLD_PWM_FROM_DUTY_CYCLE(duty_cycle) \
76 (DIV_ROUND_DOWN_ULL((duty_cycle), NSEC_PER_SEC / SL28CPLD_PWM_CLK))
110 state->duty_cycle = SL28CPLD_PWM_TO_DUTY_CYCLE(reg); in sl28cpld_pwm_get_state()
115 * might happen that we calculate a duty_cycle greater than the actual in sl28cpld_pwm_get_state()
121 state->duty_cycle = min(state->duty_cycle, state->period); in sl28cpld_pwm_get_state()
153 cycle = SL28CPLD_PWM_FROM_DUTY_CYCLE(state->duty_cycle); in sl28cpld_pwm_apply()
H A Dpwm-clk.c45 u64 duty_cycle = state->duty_cycle; in pwm_clk_apply() local
61 * We have to enable the clk before setting the rate and duty_cycle, in pwm_clk_apply()
63 * (potentially) different setting. Also setting period and duty_cycle in pwm_clk_apply()
73 duty_cycle = period - duty_cycle; in pwm_clk_apply()
75 return clk_set_duty_cycle(pcchip->clk, duty_cycle, period); in pwm_clk_apply()
H A Dpwm-twl.c63 int duty_cycle = DIV64_U64_ROUND_UP(duty_ns * TWL_PWM_MAX, period_ns) + 1; in twl_pwm_config() local
78 if (duty_cycle == 1) in twl_pwm_config()
79 duty_cycle = 2; in twl_pwm_config()
80 else if (duty_cycle > TWL_PWM_MAX) in twl_pwm_config()
81 duty_cycle = 1; in twl_pwm_config()
85 pwm_config[1] = duty_cycle; in twl_pwm_config()
297 err = twl_pwm_config(pwm->chip, pwm, state->duty_cycle, state->period); in twl4030_pwm_apply()
322 err = twl_pwm_config(pwm->chip, pwm, state->duty_cycle, state->period); in twl6030_pwm_apply()
/kernel/linux/linux-5.10/drivers/pwm/
H A Dpwm-cros-ec.c30 * @duty_cycle: cached duty cycle
33 u16 duty_cycle; member
120 u16 duty_cycle; in cros_ec_pwm_apply() local
131 duty_cycle = state->enabled ? state->duty_cycle : 0; in cros_ec_pwm_apply()
133 ret = cros_ec_pwm_set_duty(ec_pwm->ec, pwm->hwpwm, duty_cycle); in cros_ec_pwm_apply()
137 channel->duty_cycle = state->duty_cycle; in cros_ec_pwm_apply()
165 * For the case of the initial hardware readout, channel->duty_cycle in cros_ec_pwm_get_state()
168 if (ret == 0 && channel->duty_cycle > in cros_ec_pwm_get_state()
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H A Dcore.c492 * best effort inverted .polarity and fixed .duty_cycle respectively. in pwm_apply_state_debug()
497 s2.duty_cycle = s1.period - s1.duty_cycle; in pwm_apply_state_debug()
505 state->duty_cycle < state->period) in pwm_apply_state_debug()
524 last->duty_cycle > s2.duty_cycle && in pwm_apply_state_debug()
525 last->duty_cycle <= state->duty_cycle) in pwm_apply_state_debug()
528 state->duty_cycle, state->period, in pwm_apply_state_debug()
529 s2.duty_cycle, s in pwm_apply_state_debug()
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H A Dpwm-twl-led.c61 int duty_cycle = DIV_ROUND_UP(duty_ns * TWL4030_LED_MAX, period_ns) + 1; in twl4030_pwmled_config() local
76 if (duty_cycle == 1) in twl4030_pwmled_config()
77 duty_cycle = 2; in twl4030_pwmled_config()
78 else if (duty_cycle > TWL4030_LED_MAX) in twl4030_pwmled_config()
79 duty_cycle = 1; in twl4030_pwmled_config()
83 pwm_config[1] = duty_cycle; in twl4030_pwmled_config()
143 int duty_cycle = (duty_ns * TWL6030_LED_MAX) / period_ns; in twl6030_pwmled_config() local
147 on_time = duty_cycle & 0xff; in twl6030_pwmled_config()
H A Dpwm-sl28cpld.c74 #define SL28CPLD_PWM_FROM_DUTY_CYCLE(duty_cycle) \
75 (DIV_ROUND_DOWN_ULL((duty_cycle), NSEC_PER_SEC / SL28CPLD_PWM_CLK))
106 state->duty_cycle = SL28CPLD_PWM_TO_DUTY_CYCLE(reg); in sl28cpld_pwm_get_state()
111 * might happen that we calculate a duty_cycle greater than the actual in sl28cpld_pwm_get_state()
117 state->duty_cycle = min(state->duty_cycle, state->period); in sl28cpld_pwm_get_state()
147 cycle = SL28CPLD_PWM_FROM_DUTY_CYCLE(state->duty_cycle); in sl28cpld_pwm_apply()
/kernel/linux/linux-5.10/include/linux/
H A Dpwm.h54 * @duty_cycle: PWM duty cycle (in nanoseconds)
60 u64 duty_cycle; member
128 pwm->state.duty_cycle = duty; in pwm_set_duty_cycle()
137 return state.duty_cycle; in pwm_get_duty_cycle()
164 * Once the function returns, you can adjust the ->enabled and ->duty_cycle
167 * ->duty_cycle is initially set to zero to avoid cases where the current
168 * ->duty_cycle value exceed the pwm_args->period one, which would trigger
169 * an error if the user calls pwm_apply_state() without adjusting ->duty_cycle
185 state->duty_cycle = 0; in pwm_init_state()
196 * For example if you want to get the duty_cycle expresse
230 pwm_set_relative_duty_cycle(struct pwm_state *state, unsigned int duty_cycle, unsigned int scale) pwm_set_relative_duty_cycle() argument
311 unsigned int duty_cycle; global() member
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/kernel/linux/linux-6.6/include/linux/
H A Dpwm.h51 * @duty_cycle: PWM duty cycle (in nanoseconds)
61 u64 duty_cycle; member
135 pwm->state.duty_cycle = duty; in pwm_set_duty_cycle()
144 return state.duty_cycle; in pwm_get_duty_cycle()
171 * Once the function returns, you can adjust the ->enabled and ->duty_cycle
174 * ->duty_cycle is initially set to zero to avoid cases where the current
175 * ->duty_cycle value exceed the pwm_args->period one, which would trigger
176 * an error if the user calls pwm_apply_state() without adjusting ->duty_cycle
192 state->duty_cycle = 0; in pwm_init_state()
204 * For example if you want to get the duty_cycle expresse
238 pwm_set_relative_duty_cycle(struct pwm_state *state, unsigned int duty_cycle, unsigned int scale) pwm_set_relative_duty_cycle() argument
258 unsigned int duty_cycle; global() member
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/kernel/linux/linux-5.10/drivers/media/rc/
H A Dgpio-ir-tx.c21 unsigned int duty_cycle; member
30 static int gpio_ir_tx_set_duty_cycle(struct rc_dev *dev, u32 duty_cycle) in gpio_ir_tx_set_duty_cycle() argument
34 gpio_ir->duty_cycle = duty_cycle; in gpio_ir_tx_set_duty_cycle()
103 pulse = DIV_ROUND_CLOSEST(gpio_ir->duty_cycle * (NSEC_PER_SEC / 100), in gpio_ir_tx_modulated()
105 space = DIV_ROUND_CLOSEST((100 - gpio_ir->duty_cycle) * in gpio_ir_tx_modulated()
187 gpio_ir->duty_cycle = 50; in gpio_ir_tx_probe()
H A Dpwm-ir-tx.c21 unsigned int duty_cycle; member
30 static int pwm_ir_set_duty_cycle(struct rc_dev *dev, u32 duty_cycle) in pwm_ir_set_duty_cycle() argument
34 pwm_ir->duty_cycle = duty_cycle; in pwm_ir_set_duty_cycle()
61 duty = DIV_ROUND_CLOSEST(pwm_ir->duty_cycle * period, 100); in pwm_ir_tx()
99 pwm_ir->duty_cycle = 50; in pwm_ir_probe()
H A Drc-loopback.c62 static int loop_set_tx_duty_cycle(struct rc_dev *dev, u32 duty_cycle) in loop_set_tx_duty_cycle() argument
66 if (duty_cycle < 1 || duty_cycle > 99) { in loop_set_tx_duty_cycle()
67 dprintk("invalid duty cycle: %u\n", duty_cycle); in loop_set_tx_duty_cycle()
71 dprintk("setting duty cycle: %u\n", duty_cycle); in loop_set_tx_duty_cycle()
72 lodev->txduty = duty_cycle; in loop_set_tx_duty_cycle()
/kernel/linux/linux-6.6/drivers/media/rc/
H A Dgpio-ir-tx.c21 unsigned int duty_cycle; member
30 static int gpio_ir_tx_set_duty_cycle(struct rc_dev *dev, u32 duty_cycle) in gpio_ir_tx_set_duty_cycle() argument
34 gpio_ir->duty_cycle = duty_cycle; in gpio_ir_tx_set_duty_cycle()
108 pulse = DIV_ROUND_CLOSEST(gpio_ir->duty_cycle * (NSEC_PER_SEC / 100), in gpio_ir_tx_modulated()
110 space = DIV_ROUND_CLOSEST((100 - gpio_ir->duty_cycle) * in gpio_ir_tx_modulated()
189 gpio_ir->duty_cycle = 50; in gpio_ir_tx_probe()
H A Dpwm-ir-tx.c21 unsigned int duty_cycle; member
30 static int pwm_ir_set_duty_cycle(struct rc_dev *dev, u32 duty_cycle) in pwm_ir_set_duty_cycle() argument
34 pwm_ir->duty_cycle = duty_cycle; in pwm_ir_set_duty_cycle()
64 pwm_set_relative_duty_cycle(&state, pwm_ir->duty_cycle, 100); in pwm_ir_tx()
99 pwm_ir->duty_cycle = 50; in pwm_ir_probe()
H A Drc-loopback.c59 static int loop_set_tx_duty_cycle(struct rc_dev *dev, u32 duty_cycle) in loop_set_tx_duty_cycle() argument
63 if (duty_cycle < 1 || duty_cycle > 99) { in loop_set_tx_duty_cycle()
64 dev_dbg(&dev->dev, "invalid duty cycle: %u\n", duty_cycle); in loop_set_tx_duty_cycle()
68 dev_dbg(&dev->dev, "setting duty cycle: %u\n", duty_cycle); in loop_set_tx_duty_cycle()
69 lodev->txduty = duty_cycle; in loop_set_tx_duty_cycle()
/kernel/linux/linux-5.10/include/trace/events/
H A Dpwm.h20 __field(u64, duty_cycle)
28 __entry->duty_cycle = state->duty_cycle;
33 TP_printk("%p: period=%llu duty_cycle=%llu polarity=%d enabled=%d",
34 __entry->pwm, __entry->period, __entry->duty_cycle,
/kernel/linux/linux-6.6/include/trace/events/
H A Dpwm.h20 __field(u64, duty_cycle)
29 __entry->duty_cycle = state->duty_cycle;
35 TP_printk("%p: period=%llu duty_cycle=%llu polarity=%d enabled=%d err=%d",
36 __entry->pwm, __entry->period, __entry->duty_cycle,
/kernel/linux/linux-5.10/drivers/leds/
H A Dleds-lp3944.c130 * @duty_cycle: percentage of a period during which a led is ON
133 u8 duty_cycle) in lp3944_dim_set_dutycycle()
147 if (duty_cycle > LP3944_DUTY_CYCLE_MAX) in lp3944_dim_set_dutycycle()
150 pwm_value = (duty_cycle * 255) / LP3944_DUTY_CYCLE_MAX; in lp3944_dim_set_dutycycle()
229 u8 duty_cycle; in lp3944_led_set_blink() local
247 /* duty_cycle is the percentage of period during which the led is ON */ in lp3944_led_set_blink()
248 duty_cycle = 100 * (*delay_on) / period; in lp3944_led_set_blink()
254 duty_cycle = 100 - duty_cycle; in lp3944_led_set_blink()
267 err = lp3944_dim_set_dutycycle(led->client, LP3944_DIM0, duty_cycle); in lp3944_led_set_blink()
132 lp3944_dim_set_dutycycle(struct i2c_client *client, u8 dim, u8 duty_cycle) lp3944_dim_set_dutycycle() argument
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/kernel/linux/linux-6.6/drivers/leds/
H A Dleds-lp3944.c130 * @duty_cycle: percentage of a period during which a led is ON
133 u8 duty_cycle) in lp3944_dim_set_dutycycle()
147 if (duty_cycle > LP3944_DUTY_CYCLE_MAX) in lp3944_dim_set_dutycycle()
150 pwm_value = (duty_cycle * 255) / LP3944_DUTY_CYCLE_MAX; in lp3944_dim_set_dutycycle()
229 u8 duty_cycle; in lp3944_led_set_blink() local
247 /* duty_cycle is the percentage of period during which the led is ON */ in lp3944_led_set_blink()
248 duty_cycle = 100 * (*delay_on) / period; in lp3944_led_set_blink()
254 duty_cycle = 100 - duty_cycle; in lp3944_led_set_blink()
267 err = lp3944_dim_set_dutycycle(led->client, LP3944_DIM0, duty_cycle); in lp3944_led_set_blink()
132 lp3944_dim_set_dutycycle(struct i2c_client *client, u8 dim, u8 duty_cycle) lp3944_dim_set_dutycycle() argument
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/kernel/linux/linux-6.6/drivers/video/backlight/
H A Dpwm_bl.c80 u64 duty_cycle; in compute_duty_cycle() local
83 duty_cycle = pb->levels[brightness]; in compute_duty_cycle()
85 duty_cycle = brightness; in compute_duty_cycle()
87 duty_cycle *= state->period - lth; in compute_duty_cycle()
88 do_div(duty_cycle, pb->scale); in compute_duty_cycle()
90 return duty_cycle + lth; in compute_duty_cycle()
104 state.duty_cycle = compute_duty_cycle(pb, brightness, &state); in pwm_backlight_update_status()
113 state.duty_cycle = 0; in pwm_backlight_update_status()
634 state.duty_cycle = 0; in pwm_backlight_remove()
650 state.duty_cycle in pwm_backlight_shutdown()
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