116 	struct atmel_pwm_chip *atmel_pwm = to_atmel_pwm_chip(chip);  in atmel_pwm_calculate_cprd_and_pres()  local
120 	cycles *= clk_get_rate(atmel_pwm->clk);  in atmel_pwm_calculate_cprd_and_pres()
123 	for (*pres = 0; cycles > atmel_pwm->data->cfg.max_period; cycles >>= 1)  in atmel_pwm_calculate_cprd_and_pres()
126 	if (*pres > atmel_pwm->data->cfg.max_pres) {  in atmel_pwm_calculate_cprd_and_pres()
149 	struct atmel_pwm_chip *atmel_pwm = to_atmel_pwm_chip(chip);  in atmel_pwm_update_cdty()  local
152 	if (atmel_pwm->data->regs.duty_upd ==  in atmel_pwm_update_cdty()
153 	    atmel_pwm->data->regs.period_upd) {  in atmel_pwm_update_cdty()
154 		val = atmel_pwm_ch_readl(atmel_pwm, pwm->hwpwm, PWM_CMR);  in atmel_pwm_update_cdty()
156 		atmel_pwm_ch_writel(atmel_pwm, pwm->hwpwm, PWM_CMR, val);  in atmel_pwm_update_cdty()
159 	atmel_pwm_ch_writel(atmel_pwm, pwm->hwpwm,  in atmel_pwm_update_cdty()
160 			    atmel_pwm->data->regs.duty_upd, cdty);  in atmel_pwm_update_cdty()
167 	struct atmel_pwm_chip *atmel_pwm = to_atmel_pwm_chip(chip);  in atmel_pwm_set_cprd_cdty()  local
169 	atmel_pwm_ch_writel(atmel_pwm, pwm->hwpwm,  in atmel_pwm_set_cprd_cdty()
170 			    atmel_pwm->data->regs.duty, cdty);  in atmel_pwm_set_cprd_cdty()
171 	atmel_pwm_ch_writel(atmel_pwm, pwm->hwpwm,  in atmel_pwm_set_cprd_cdty()
172 			    atmel_pwm->data->regs.period, cprd);  in atmel_pwm_set_cprd_cdty()
178 	struct atmel_pwm_chip *atmel_pwm = to_atmel_pwm_chip(chip);  in atmel_pwm_disable()  local
185 	mutex_lock(&atmel_pwm->isr_lock);  in atmel_pwm_disable()
186 	atmel_pwm->updated_pwms |= atmel_pwm_readl(atmel_pwm, PWM_ISR);  in atmel_pwm_disable()
188 	while (!(atmel_pwm->updated_pwms & (1 << pwm->hwpwm)) &&  in atmel_pwm_disable()
191 		atmel_pwm->updated_pwms |= atmel_pwm_readl(atmel_pwm, PWM_ISR);  in atmel_pwm_disable()
194 	mutex_unlock(&atmel_pwm->isr_lock);  in atmel_pwm_disable()
195 	atmel_pwm_writel(atmel_pwm, PWM_DIS, 1 << pwm->hwpwm);  in atmel_pwm_disable()
203 	while ((atmel_pwm_readl(atmel_pwm, PWM_SR) & (1 << pwm->hwpwm)) &&  in atmel_pwm_disable()
208 		clk_disable(atmel_pwm->clk);  in atmel_pwm_disable()
214 	struct atmel_pwm_chip *atmel_pwm = to_atmel_pwm_chip(chip);  in atmel_pwm_apply()  local
226 			cprd = atmel_pwm_ch_readl(atmel_pwm, pwm->hwpwm,  in atmel_pwm_apply()
227 						  atmel_pwm->data->regs.period);  in atmel_pwm_apply()
246 			ret = clk_enable(atmel_pwm->clk);  in atmel_pwm_apply()
254 		val = atmel_pwm_ch_readl(atmel_pwm, pwm->hwpwm, PWM_CMR);  in atmel_pwm_apply()
260 		atmel_pwm_ch_writel(atmel_pwm, pwm->hwpwm, PWM_CMR, val);  in atmel_pwm_apply()
262 		mutex_lock(&atmel_pwm->isr_lock);  in atmel_pwm_apply()
263 		atmel_pwm->updated_pwms |= atmel_pwm_readl(atmel_pwm, PWM_ISR);  in atmel_pwm_apply()
264 		atmel_pwm->updated_pwms &= ~(1 << pwm->hwpwm);  in atmel_pwm_apply()
265 		mutex_unlock(&atmel_pwm->isr_lock);  in atmel_pwm_apply()
266 		atmel_pwm_writel(atmel_pwm, PWM_ENA, 1 << pwm->hwpwm);  in atmel_pwm_apply()
342 	struct atmel_pwm_chip *atmel_pwm;  in atmel_pwm_probe()  local
346 	atmel_pwm = devm_kzalloc(&pdev->dev, sizeof(*atmel_pwm), GFP_KERNEL);  in atmel_pwm_probe()
347 	if (!atmel_pwm)  in atmel_pwm_probe()
350 	mutex_init(&atmel_pwm->isr_lock);  in atmel_pwm_probe()
351 	atmel_pwm->data = of_device_get_match_data(&pdev->dev);  in atmel_pwm_probe()
352 	atmel_pwm->updated_pwms = 0;  in atmel_pwm_probe()
355 	atmel_pwm->base = devm_ioremap_resource(&pdev->dev, res);  in atmel_pwm_probe()
356 	if (IS_ERR(atmel_pwm->base))  in atmel_pwm_probe()
357 		return PTR_ERR(atmel_pwm->base);  in atmel_pwm_probe()
359 	atmel_pwm->clk = devm_clk_get(&pdev->dev, NULL);  in atmel_pwm_probe()
360 	if (IS_ERR(atmel_pwm->clk))  in atmel_pwm_probe()
361 		return PTR_ERR(atmel_pwm->clk);  in atmel_pwm_probe()
363 	ret = clk_prepare(atmel_pwm->clk);  in atmel_pwm_probe()
369 	atmel_pwm->chip.dev = &pdev->dev;  in atmel_pwm_probe()
370 	atmel_pwm->chip.ops = &atmel_pwm_ops;  in atmel_pwm_probe()
371 	atmel_pwm->chip.of_xlate = of_pwm_xlate_with_flags;  in atmel_pwm_probe()
372 	atmel_pwm->chip.of_pwm_n_cells = 3;  in atmel_pwm_probe()
373 	atmel_pwm->chip.base = -1;  in atmel_pwm_probe()
374 	atmel_pwm->chip.npwm = 4;  in atmel_pwm_probe()
376 	ret = pwmchip_add(&atmel_pwm->chip);  in atmel_pwm_probe()
382 	platform_set_drvdata(pdev, atmel_pwm);  in atmel_pwm_probe()
387 	clk_unprepare(atmel_pwm->clk);  in atmel_pwm_probe()
393 	struct atmel_pwm_chip *atmel_pwm = platform_get_drvdata(pdev);  in atmel_pwm_remove()  local
395 	clk_unprepare(atmel_pwm->clk);  in atmel_pwm_remove()
396 	mutex_destroy(&atmel_pwm->isr_lock);  in atmel_pwm_remove()
398 	return pwmchip_remove(&atmel_pwm->chip);  in atmel_pwm_remove()