97 static inline u32 sun4i_pwm_readl(struct sun4i_pwm_chip *sun4ichip,  in sun4i_pwm_readl()  argument
100 	return readl(sun4ichip->base + offset);  in sun4i_pwm_readl()
103 static inline void sun4i_pwm_writel(struct sun4i_pwm_chip *sun4ichip,  in sun4i_pwm_writel()  argument
106 	writel(val, sun4ichip->base + offset);  in sun4i_pwm_writel()
113 	struct sun4i_pwm_chip *sun4ichip = to_sun4i_pwm_chip(chip);  in sun4i_pwm_get_state()  local
118 	clk_rate = clk_get_rate(sun4ichip->clk);  in sun4i_pwm_get_state()
122 	val = sun4i_pwm_readl(sun4ichip, PWM_CTRL_REG);  in sun4i_pwm_get_state()
130 	    sun4ichip->data->has_direct_mod_clk_output) {  in sun4i_pwm_get_state()
139 	    sun4ichip->data->has_prescaler_bypass)  in sun4i_pwm_get_state()
158 	val = sun4i_pwm_readl(sun4ichip, PWM_CH_PRD(pwm->hwpwm));  in sun4i_pwm_get_state()
169 static int sun4i_pwm_calculate(struct sun4i_pwm_chip *sun4ichip,  in sun4i_pwm_calculate()  argument
177 	clk_rate = clk_get_rate(sun4ichip->clk);  in sun4i_pwm_calculate()
179 	*bypass = sun4ichip->data->has_direct_mod_clk_output &&  in sun4i_pwm_calculate()
189 	if (sun4ichip->data->has_prescaler_bypass) {  in sun4i_pwm_calculate()
235 	struct sun4i_pwm_chip *sun4ichip = to_sun4i_pwm_chip(chip);  in sun4i_pwm_apply()  local
245 		ret = clk_prepare_enable(sun4ichip->clk);  in sun4i_pwm_apply()
252 	ret = sun4i_pwm_calculate(sun4ichip, state, &duty, &period, &prescaler,  in sun4i_pwm_apply()
257 			clk_disable_unprepare(sun4ichip->clk);  in sun4i_pwm_apply()
261 	spin_lock(&sun4ichip->ctrl_lock);  in sun4i_pwm_apply()
262 	ctrl = sun4i_pwm_readl(sun4ichip, PWM_CTRL_REG);  in sun4i_pwm_apply()
264 	if (sun4ichip->data->has_direct_mod_clk_output) {  in sun4i_pwm_apply()
268 			sun4i_pwm_writel(sun4ichip, ctrl, PWM_CTRL_REG);  in sun4i_pwm_apply()
269 			spin_unlock(&sun4ichip->ctrl_lock);  in sun4i_pwm_apply()
279 		sun4i_pwm_writel(sun4ichip, ctrl, PWM_CTRL_REG);  in sun4i_pwm_apply()
286 	sun4i_pwm_writel(sun4ichip, val, PWM_CH_PRD(pwm->hwpwm));  in sun4i_pwm_apply()
298 	sun4i_pwm_writel(sun4ichip, ctrl, PWM_CTRL_REG);  in sun4i_pwm_apply()
300 	spin_unlock(&sun4ichip->ctrl_lock);  in sun4i_pwm_apply()
312 	spin_lock(&sun4ichip->ctrl_lock);  in sun4i_pwm_apply()
313 	ctrl = sun4i_pwm_readl(sun4ichip, PWM_CTRL_REG);  in sun4i_pwm_apply()
316 	sun4i_pwm_writel(sun4ichip, ctrl, PWM_CTRL_REG);  in sun4i_pwm_apply()
317 	spin_unlock(&sun4ichip->ctrl_lock);  in sun4i_pwm_apply()
319 	clk_disable_unprepare(sun4ichip->clk);  in sun4i_pwm_apply()
388 	struct sun4i_pwm_chip *sun4ichip;  in sun4i_pwm_probe()  local
395 	chip = devm_pwmchip_alloc(&pdev->dev, data->npwm, sizeof(*sun4ichip));  in sun4i_pwm_probe()
398 	sun4ichip = to_sun4i_pwm_chip(chip);  in sun4i_pwm_probe()
400 	sun4ichip->data = data;  in sun4i_pwm_probe()
401 	sun4ichip->base = devm_platform_ioremap_resource(pdev, 0);  in sun4i_pwm_probe()
402 	if (IS_ERR(sun4ichip->base))  in sun4i_pwm_probe()
403 		return PTR_ERR(sun4ichip->base);  in sun4i_pwm_probe()
416 	sun4ichip->clk = devm_clk_get_optional(&pdev->dev, "mod");  in sun4i_pwm_probe()
417 	if (IS_ERR(sun4ichip->clk))  in sun4i_pwm_probe()
418 		return dev_err_probe(&pdev->dev, PTR_ERR(sun4ichip->clk),  in sun4i_pwm_probe()
421 	if (!sun4ichip->clk) {  in sun4i_pwm_probe()
422 		sun4ichip->clk = devm_clk_get(&pdev->dev, NULL);  in sun4i_pwm_probe()
423 		if (IS_ERR(sun4ichip->clk))  in sun4i_pwm_probe()
424 			return dev_err_probe(&pdev->dev, PTR_ERR(sun4ichip->clk),  in sun4i_pwm_probe()
428 	sun4ichip->bus_clk = devm_clk_get_optional(&pdev->dev, "bus");  in sun4i_pwm_probe()
429 	if (IS_ERR(sun4ichip->bus_clk))  in sun4i_pwm_probe()
430 		return dev_err_probe(&pdev->dev, PTR_ERR(sun4ichip->bus_clk),  in sun4i_pwm_probe()
433 	sun4ichip->rst = devm_reset_control_get_optional_shared(&pdev->dev, NULL);  in sun4i_pwm_probe()
434 	if (IS_ERR(sun4ichip->rst))  in sun4i_pwm_probe()
435 		return dev_err_probe(&pdev->dev, PTR_ERR(sun4ichip->rst),  in sun4i_pwm_probe()
439 	ret = reset_control_deassert(sun4ichip->rst);  in sun4i_pwm_probe()
450 	ret = clk_prepare_enable(sun4ichip->bus_clk);  in sun4i_pwm_probe()
459 	spin_lock_init(&sun4ichip->ctrl_lock);  in sun4i_pwm_probe()
472 	clk_disable_unprepare(sun4ichip->bus_clk);  in sun4i_pwm_probe()
474 	reset_control_assert(sun4ichip->rst);  in sun4i_pwm_probe()
482 	struct sun4i_pwm_chip *sun4ichip = to_sun4i_pwm_chip(chip);  in sun4i_pwm_remove()  local
486 	clk_disable_unprepare(sun4ichip->bus_clk);  in sun4i_pwm_remove()
487 	reset_control_assert(sun4ichip->rst);  in sun4i_pwm_remove()