Lines Matching full:pc
126 static int sti_pwm_get_prescale(struct sti_pwm_chip *pc, unsigned long period, in sti_pwm_get_prescale() argument
129 struct sti_pwm_compat_data *cdata = pc->cdata; in sti_pwm_get_prescale()
134 clk_rate = clk_get_rate(pc->pwm_clk); in sti_pwm_get_prescale()
136 dev_err(pc->dev, "failed to get clock rate\n"); in sti_pwm_get_prescale()
170 struct sti_pwm_chip *pc = to_sti_pwmchip(chip); in sti_pwm_config() local
171 struct sti_pwm_compat_data *cdata = pc->cdata; in sti_pwm_config()
173 struct pwm_device *cur = pc->cur; in sti_pwm_config()
174 struct device *dev = pc->dev; in sti_pwm_config()
178 ncfg = hweight_long(pc->configured); in sti_pwm_config()
199 ret = clk_enable(pc->pwm_clk); in sti_pwm_config()
203 ret = clk_enable(pc->cpt_clk); in sti_pwm_config()
208 ret = sti_pwm_get_prescale(pc, period_ns, &prescale); in sti_pwm_config()
214 ret = regmap_field_write(pc->prescale_low, value); in sti_pwm_config()
220 ret = regmap_field_write(pc->prescale_high, value); in sti_pwm_config()
233 ret = regmap_write(pc->regmap, PWM_OUT_VAL(pwm->hwpwm), value); in sti_pwm_config()
237 ret = regmap_field_write(pc->pwm_cpt_int_en, 0); in sti_pwm_config()
239 set_bit(pwm->hwpwm, &pc->configured); in sti_pwm_config()
240 pc->cur = pwm; in sti_pwm_config()
249 clk_disable(pc->pwm_clk); in sti_pwm_config()
250 clk_disable(pc->cpt_clk); in sti_pwm_config()
256 struct sti_pwm_chip *pc = to_sti_pwmchip(chip); in sti_pwm_enable() local
257 struct device *dev = pc->dev; in sti_pwm_enable()
264 mutex_lock(&pc->sti_pwm_lock); in sti_pwm_enable()
266 if (!pc->en_count) { in sti_pwm_enable()
267 ret = clk_enable(pc->pwm_clk); in sti_pwm_enable()
271 ret = clk_enable(pc->cpt_clk); in sti_pwm_enable()
275 ret = regmap_field_write(pc->pwm_out_en, 1); in sti_pwm_enable()
283 pc->en_count++; in sti_pwm_enable()
286 mutex_unlock(&pc->sti_pwm_lock); in sti_pwm_enable()
292 struct sti_pwm_chip *pc = to_sti_pwmchip(chip); in sti_pwm_disable() local
294 mutex_lock(&pc->sti_pwm_lock); in sti_pwm_disable()
296 if (--pc->en_count) { in sti_pwm_disable()
297 mutex_unlock(&pc->sti_pwm_lock); in sti_pwm_disable()
301 regmap_field_write(pc->pwm_out_en, 0); in sti_pwm_disable()
303 clk_disable(pc->pwm_clk); in sti_pwm_disable()
304 clk_disable(pc->cpt_clk); in sti_pwm_disable()
306 mutex_unlock(&pc->sti_pwm_lock); in sti_pwm_disable()
311 struct sti_pwm_chip *pc = to_sti_pwmchip(chip); in sti_pwm_free() local
313 clear_bit(pwm->hwpwm, &pc->configured); in sti_pwm_free()
319 struct sti_pwm_chip *pc = to_sti_pwmchip(chip); in sti_pwm_capture() local
320 struct sti_pwm_compat_data *cdata = pc->cdata; in sti_pwm_capture()
322 struct device *dev = pc->dev; in sti_pwm_capture()
336 regmap_write(pc->regmap, PWM_CPT_EDGE(pwm->hwpwm), CPT_EDGE_RISING); in sti_pwm_capture()
337 regmap_field_write(pc->pwm_cpt_int_en, BIT(pwm->hwpwm)); in sti_pwm_capture()
340 ret = regmap_field_write(pc->pwm_cpt_en, 1); in sti_pwm_capture()
350 regmap_write(pc->regmap, PWM_CPT_EDGE(pwm->hwpwm), CPT_EDGE_DISABLED); in sti_pwm_capture()
375 effective_ticks = clk_get_rate(pc->cpt_clk); in sti_pwm_capture()
392 regmap_field_write(pc->pwm_cpt_en, 0); in sti_pwm_capture()
409 struct sti_pwm_chip *pc = data; in sti_pwm_interrupt() local
410 struct device *dev = pc->dev; in sti_pwm_interrupt()
417 ret = regmap_field_read(pc->pwm_cpt_int_stat, &cpt_int_stat); in sti_pwm_interrupt()
424 ddata = pwm_get_chip_data(&pc->chip.pwms[devicenum]); in sti_pwm_interrupt()
442 regmap_read(pc->regmap, in sti_pwm_interrupt()
449 regmap_read(pc->regmap, PWM_CPT_EDGE(devicenum), ®); in sti_pwm_interrupt()
451 regmap_write(pc->regmap, PWM_CPT_EDGE(devicenum), reg); in sti_pwm_interrupt()
457 regmap_write(pc->regmap, in sti_pwm_interrupt()
473 regmap_write(pc->regmap, PWM_INT_ACK, PWM_INT_ACK_MASK); in sti_pwm_interrupt()
478 static int sti_pwm_probe_dt(struct sti_pwm_chip *pc) in sti_pwm_probe_dt() argument
480 struct device *dev = pc->dev; in sti_pwm_probe_dt()
483 struct sti_pwm_compat_data *cdata = pc->cdata; in sti_pwm_probe_dt()
502 pc->prescale_low = devm_regmap_field_alloc(dev, pc->regmap, in sti_pwm_probe_dt()
504 if (IS_ERR(pc->prescale_low)) in sti_pwm_probe_dt()
505 return PTR_ERR(pc->prescale_low); in sti_pwm_probe_dt()
507 pc->prescale_high = devm_regmap_field_alloc(dev, pc->regmap, in sti_pwm_probe_dt()
509 if (IS_ERR(pc->prescale_high)) in sti_pwm_probe_dt()
510 return PTR_ERR(pc->prescale_high); in sti_pwm_probe_dt()
513 pc->pwm_out_en = devm_regmap_field_alloc(dev, pc->regmap, in sti_pwm_probe_dt()
515 if (IS_ERR(pc->pwm_out_en)) in sti_pwm_probe_dt()
516 return PTR_ERR(pc->pwm_out_en); in sti_pwm_probe_dt()
518 pc->pwm_cpt_en = devm_regmap_field_alloc(dev, pc->regmap, in sti_pwm_probe_dt()
520 if (IS_ERR(pc->pwm_cpt_en)) in sti_pwm_probe_dt()
521 return PTR_ERR(pc->pwm_cpt_en); in sti_pwm_probe_dt()
523 pc->pwm_cpt_int_en = devm_regmap_field_alloc(dev, pc->regmap, in sti_pwm_probe_dt()
525 if (IS_ERR(pc->pwm_cpt_int_en)) in sti_pwm_probe_dt()
526 return PTR_ERR(pc->pwm_cpt_int_en); in sti_pwm_probe_dt()
528 pc->pwm_cpt_int_stat = devm_regmap_field_alloc(dev, pc->regmap, in sti_pwm_probe_dt()
530 if (PTR_ERR_OR_ZERO(pc->pwm_cpt_int_stat)) in sti_pwm_probe_dt()
531 return PTR_ERR(pc->pwm_cpt_int_stat); in sti_pwm_probe_dt()
546 struct sti_pwm_chip *pc; in sti_pwm_probe() local
551 pc = devm_kzalloc(dev, sizeof(*pc), GFP_KERNEL); in sti_pwm_probe()
552 if (!pc) in sti_pwm_probe()
561 pc->mmio = devm_ioremap_resource(dev, res); in sti_pwm_probe()
562 if (IS_ERR(pc->mmio)) in sti_pwm_probe()
563 return PTR_ERR(pc->mmio); in sti_pwm_probe()
565 pc->regmap = devm_regmap_init_mmio(dev, pc->mmio, in sti_pwm_probe()
567 if (IS_ERR(pc->regmap)) in sti_pwm_probe()
568 return PTR_ERR(pc->regmap); in sti_pwm_probe()
577 pdev->name, pc); in sti_pwm_probe()
593 pc->cdata = cdata; in sti_pwm_probe()
594 pc->dev = dev; in sti_pwm_probe()
595 pc->en_count = 0; in sti_pwm_probe()
596 mutex_init(&pc->sti_pwm_lock); in sti_pwm_probe()
598 ret = sti_pwm_probe_dt(pc); in sti_pwm_probe()
605 pc->pwm_clk = of_clk_get_by_name(dev->of_node, "pwm"); in sti_pwm_probe()
606 if (IS_ERR(pc->pwm_clk)) { in sti_pwm_probe()
608 return PTR_ERR(pc->pwm_clk); in sti_pwm_probe()
611 ret = clk_prepare(pc->pwm_clk); in sti_pwm_probe()
621 pc->cpt_clk = of_clk_get_by_name(dev->of_node, "capture"); in sti_pwm_probe()
622 if (IS_ERR(pc->cpt_clk)) { in sti_pwm_probe()
624 return PTR_ERR(pc->cpt_clk); in sti_pwm_probe()
627 ret = clk_prepare(pc->cpt_clk); in sti_pwm_probe()
634 pc->chip.dev = dev; in sti_pwm_probe()
635 pc->chip.ops = &sti_pwm_ops; in sti_pwm_probe()
636 pc->chip.base = -1; in sti_pwm_probe()
637 pc->chip.npwm = pc->cdata->pwm_num_devs; in sti_pwm_probe()
639 ret = pwmchip_add(&pc->chip); in sti_pwm_probe()
641 clk_unprepare(pc->pwm_clk); in sti_pwm_probe()
642 clk_unprepare(pc->cpt_clk); in sti_pwm_probe()
656 pwm_set_chip_data(&pc->chip.pwms[i], ddata); in sti_pwm_probe()
659 platform_set_drvdata(pdev, pc); in sti_pwm_probe()
666 struct sti_pwm_chip *pc = platform_get_drvdata(pdev); in sti_pwm_remove() local
669 for (i = 0; i < pc->cdata->pwm_num_devs; i++) in sti_pwm_remove()
670 pwm_disable(&pc->chip.pwms[i]); in sti_pwm_remove()
672 clk_unprepare(pc->pwm_clk); in sti_pwm_remove()
673 clk_unprepare(pc->cpt_clk); in sti_pwm_remove()
675 return pwmchip_remove(&pc->chip); in sti_pwm_remove()