Lines Matching refs:pwm
83 static struct samsung_pwm_clocksource pwm; variable
96 reg = readl(pwm.base + REG_TCFG0); in samsung_timer_set_prescale()
99 writel(reg, pwm.base + REG_TCFG0); in samsung_timer_set_prescale()
111 bits = (fls(divisor) - 1) - pwm.variant.div_base; in samsung_timer_set_divisor()
115 reg = readl(pwm.base + REG_TCFG1); in samsung_timer_set_divisor()
118 writel(reg, pwm.base + REG_TCFG1); in samsung_timer_set_divisor()
133 tcon = __raw_readl(pwm.base + REG_TCON); in samsung_time_stop()
135 __raw_writel(tcon, pwm.base + REG_TCON); in samsung_time_stop()
151 tcon = __raw_readl(pwm.base + REG_TCON); in samsung_time_setup()
156 __raw_writel(tcnt, pwm.base + REG_TCNTB(channel)); in samsung_time_setup()
157 __raw_writel(tcnt, pwm.base + REG_TCMPB(channel)); in samsung_time_setup()
158 __raw_writel(tcon, pwm.base + REG_TCON); in samsung_time_setup()
173 tcon = __raw_readl(pwm.base + REG_TCON); in samsung_time_start()
183 __raw_writel(tcon, pwm.base + REG_TCON); in samsung_time_start()
204 samsung_time_setup(pwm.event_id, cycles); in samsung_set_next_event()
205 samsung_time_start(pwm.event_id, false); in samsung_set_next_event()
213 samsung_time_stop(pwm.event_id); in samsung_set_mode()
217 samsung_time_setup(pwm.event_id, pwm.clock_count_per_tick - 1); in samsung_set_mode()
218 samsung_time_start(pwm.event_id, true); in samsung_set_mode()
233 samsung_timer_set_prescale(pwm.event_id, pwm.tscaler_div); in samsung_clockevent_resume()
234 samsung_timer_set_divisor(pwm.event_id, pwm.tdiv); in samsung_clockevent_resume()
236 if (pwm.variant.has_tint_cstat) { in samsung_clockevent_resume()
237 u32 mask = (1 << pwm.event_id); in samsung_clockevent_resume()
238 writel(mask | (mask << 5), pwm.base + REG_TINT_CSTAT); in samsung_clockevent_resume()
255 if (pwm.variant.has_tint_cstat) { in samsung_clock_event_isr()
256 u32 mask = (1 << pwm.event_id); in samsung_clock_event_isr()
257 writel(mask | (mask << 5), pwm.base + REG_TINT_CSTAT); in samsung_clock_event_isr()
278 pclk = clk_get_rate(pwm.timerclk); in samsung_clockevent_init()
280 samsung_timer_set_prescale(pwm.event_id, pwm.tscaler_div); in samsung_clockevent_init()
281 samsung_timer_set_divisor(pwm.event_id, pwm.tdiv); in samsung_clockevent_init()
283 clock_rate = pclk / (pwm.tscaler_div * pwm.tdiv); in samsung_clockevent_init()
284 pwm.clock_count_per_tick = clock_rate / HZ; in samsung_clockevent_init()
288 clock_rate, 1, pwm.tcnt_max); in samsung_clockevent_init()
290 irq_number = pwm.irq[pwm.event_id]; in samsung_clockevent_init()
293 if (pwm.variant.has_tint_cstat) { in samsung_clockevent_init()
294 u32 mask = (1 << pwm.event_id); in samsung_clockevent_init()
295 writel(mask | (mask << 5), pwm.base + REG_TINT_CSTAT); in samsung_clockevent_init()
301 samsung_time_stop(pwm.source_id); in samsung_clocksource_suspend()
306 samsung_timer_set_prescale(pwm.source_id, pwm.tscaler_div); in samsung_clocksource_resume()
307 samsung_timer_set_divisor(pwm.source_id, pwm.tdiv); in samsung_clocksource_resume()
309 samsung_time_setup(pwm.source_id, pwm.tcnt_max); in samsung_clocksource_resume()
310 samsung_time_start(pwm.source_id, true); in samsung_clocksource_resume()
315 return ~readl_relaxed(pwm.source_reg); in samsung_clocksource_read()
345 pclk = clk_get_rate(pwm.timerclk); in samsung_clocksource_init()
347 samsung_timer_set_prescale(pwm.source_id, pwm.tscaler_div); in samsung_clocksource_init()
348 samsung_timer_set_divisor(pwm.source_id, pwm.tdiv); in samsung_clocksource_init()
350 clock_rate = pclk / (pwm.tscaler_div * pwm.tdiv); in samsung_clocksource_init()
352 samsung_time_setup(pwm.source_id, pwm.tcnt_max); in samsung_clocksource_init()
353 samsung_time_start(pwm.source_id, true); in samsung_clocksource_init()
355 if (pwm.source_id == 4) in samsung_clocksource_init()
356 pwm.source_reg = pwm.base + 0x40; in samsung_clocksource_init()
358 pwm.source_reg = pwm.base + pwm.source_id * 0x0c + 0x14; in samsung_clocksource_init()
361 pwm.variant.bits, clock_rate); in samsung_clocksource_init()
363 samsung_clocksource.mask = CLOCKSOURCE_MASK(pwm.variant.bits); in samsung_clocksource_init()
371 clk_prepare_enable(pwm.timerclk); in samsung_timer_resources()
373 pwm.tcnt_max = (1UL << pwm.variant.bits) - 1; in samsung_timer_resources()
374 if (pwm.variant.bits == 16) { in samsung_timer_resources()
375 pwm.tscaler_div = 25; in samsung_timer_resources()
376 pwm.tdiv = 2; in samsung_timer_resources()
378 pwm.tscaler_div = 2; in samsung_timer_resources()
379 pwm.tdiv = 1; in samsung_timer_resources()
391 mask = ~pwm.variant.output_mask & ((1 << SAMSUNG_PWM_NUM) - 1); in _samsung_pwm_clocksource_init()
395 pwm.source_id = channel; in _samsung_pwm_clocksource_init()
401 pwm.event_id = channel; in _samsung_pwm_clocksource_init()
411 pwm.base = base; in samsung_pwm_clocksource_init()
412 memcpy(&pwm.variant, variant, sizeof(pwm.variant)); in samsung_pwm_clocksource_init()
413 memcpy(pwm.irq, irqs, SAMSUNG_PWM_NUM * sizeof(*irqs)); in samsung_pwm_clocksource_init()
415 pwm.timerclk = clk_get(NULL, "timers"); in samsung_pwm_clocksource_init()
416 if (IS_ERR(pwm.timerclk)) in samsung_pwm_clocksource_init()
431 memcpy(&pwm.variant, variant, sizeof(pwm.variant)); in samsung_pwm_alloc()
433 pwm.irq[i] = irq_of_parse_and_map(np, i); in samsung_pwm_alloc()
441 pwm.variant.output_mask |= 1 << val; in samsung_pwm_alloc()
444 pwm.base = of_iomap(np, 0); in samsung_pwm_alloc()
445 if (!pwm.base) { in samsung_pwm_alloc()
450 pwm.timerclk = of_clk_get_by_name(np, "timers"); in samsung_pwm_alloc()
451 if (IS_ERR(pwm.timerclk)) in samsung_pwm_alloc()