64 	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);  in rockchip_pwm_get_state()  local
65 	u32 enable_conf = pc->data->enable_conf;  in rockchip_pwm_get_state()
71 	ret = clk_enable(pc->pclk);  in rockchip_pwm_get_state()
75 	ret = clk_enable(pc->clk);  in rockchip_pwm_get_state()
79 	clk_rate = clk_get_rate(pc->clk);  in rockchip_pwm_get_state()
81 	tmp = readl_relaxed(pc->base + pc->data->regs.period);  in rockchip_pwm_get_state()
82 	tmp *= pc->data->prescaler * NSEC_PER_SEC;  in rockchip_pwm_get_state()
85 	tmp = readl_relaxed(pc->base + pc->data->regs.duty);  in rockchip_pwm_get_state()
86 	tmp *= pc->data->prescaler * NSEC_PER_SEC;  in rockchip_pwm_get_state()
89 	val = readl_relaxed(pc->base + pc->data->regs.ctrl);  in rockchip_pwm_get_state()
92 	if (pc->data->supports_polarity && !(val & PWM_DUTY_POSITIVE))  in rockchip_pwm_get_state()
97 	clk_disable(pc->clk);  in rockchip_pwm_get_state()
98 	clk_disable(pc->pclk);  in rockchip_pwm_get_state()
104 	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);  in rockchip_pwm_config()  local
109 	clk_rate = clk_get_rate(pc->clk);  in rockchip_pwm_config()
118 				       pc->data->prescaler * NSEC_PER_SEC);  in rockchip_pwm_config()
121 	duty = DIV_ROUND_CLOSEST_ULL(div, pc->data->prescaler * NSEC_PER_SEC);  in rockchip_pwm_config()
127 	ctrl = readl_relaxed(pc->base + pc->data->regs.ctrl);  in rockchip_pwm_config()
128 	if (pc->data->supports_lock) {  in rockchip_pwm_config()
130 		writel_relaxed(ctrl, pc->base + pc->data->regs.ctrl);  in rockchip_pwm_config()
133 	writel(period, pc->base + pc->data->regs.period);  in rockchip_pwm_config()
134 	writel(duty, pc->base + pc->data->regs.duty);  in rockchip_pwm_config()
136 	if (pc->data->supports_polarity) {  in rockchip_pwm_config()
149 	if (pc->data->supports_lock)  in rockchip_pwm_config()
152 	writel(ctrl, pc->base + pc->data->regs.ctrl);  in rockchip_pwm_config()
159 	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);  in rockchip_pwm_enable()  local
160 	u32 enable_conf = pc->data->enable_conf;  in rockchip_pwm_enable()
165 		ret = clk_enable(pc->clk);  in rockchip_pwm_enable()
170 	val = readl_relaxed(pc->base + pc->data->regs.ctrl);  in rockchip_pwm_enable()
177 	writel_relaxed(val, pc->base + pc->data->regs.ctrl);  in rockchip_pwm_enable()
180 		clk_disable(pc->clk);  in rockchip_pwm_enable()
188 	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);  in rockchip_pwm_apply()  local
193 	ret = clk_enable(pc->pclk);  in rockchip_pwm_apply()
197 	ret = clk_enable(pc->clk);  in rockchip_pwm_apply()
205 	    !pc->data->supports_lock) {  in rockchip_pwm_apply()
220 	clk_disable(pc->clk);  in rockchip_pwm_apply()
221 	clk_disable(pc->pclk);  in rockchip_pwm_apply()
299 	struct rockchip_pwm_chip *pc;  in rockchip_pwm_probe()  local
308 	pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL);  in rockchip_pwm_probe()
309 	if (!pc)  in rockchip_pwm_probe()
312 	pc->base = devm_platform_ioremap_resource(pdev, 0);  in rockchip_pwm_probe()
313 	if (IS_ERR(pc->base))  in rockchip_pwm_probe()
314 		return PTR_ERR(pc->base);  in rockchip_pwm_probe()
316 	pc->clk = devm_clk_get(&pdev->dev, "pwm");  in rockchip_pwm_probe()
317 	if (IS_ERR(pc->clk)) {  in rockchip_pwm_probe()
318 		pc->clk = devm_clk_get(&pdev->dev, NULL);  in rockchip_pwm_probe()
319 		if (IS_ERR(pc->clk))  in rockchip_pwm_probe()
320 			return dev_err_probe(&pdev->dev, PTR_ERR(pc->clk),  in rockchip_pwm_probe()
327 		pc->pclk = devm_clk_get(&pdev->dev, "pclk");  in rockchip_pwm_probe()
329 		pc->pclk = pc->clk;  in rockchip_pwm_probe()
331 	if (IS_ERR(pc->pclk)) {  in rockchip_pwm_probe()
332 		ret = PTR_ERR(pc->pclk);  in rockchip_pwm_probe()
338 	ret = clk_prepare_enable(pc->clk);  in rockchip_pwm_probe()
344 	ret = clk_prepare_enable(pc->pclk);  in rockchip_pwm_probe()
350 	platform_set_drvdata(pdev, pc);  in rockchip_pwm_probe()
352 	pc->data = id->data;  in rockchip_pwm_probe()
353 	pc->chip.dev = &pdev->dev;  in rockchip_pwm_probe()
354 	pc->chip.ops = &rockchip_pwm_ops;  in rockchip_pwm_probe()
355 	pc->chip.npwm = 1;  in rockchip_pwm_probe()
357 	enable_conf = pc->data->enable_conf;  in rockchip_pwm_probe()
358 	ctrl = readl_relaxed(pc->base + pc->data->regs.ctrl);  in rockchip_pwm_probe()
361 	ret = pwmchip_add(&pc->chip);  in rockchip_pwm_probe()
369 		clk_disable(pc->clk);  in rockchip_pwm_probe()
371 	clk_disable(pc->pclk);  in rockchip_pwm_probe()
376 	clk_disable_unprepare(pc->pclk);  in rockchip_pwm_probe()
378 	clk_disable_unprepare(pc->clk);  in rockchip_pwm_probe()
385 	struct rockchip_pwm_chip *pc = platform_get_drvdata(pdev);  in rockchip_pwm_remove()  local
387 	pwmchip_remove(&pc->chip);  in rockchip_pwm_remove()
389 	clk_unprepare(pc->pclk);  in rockchip_pwm_remove()
390 	clk_unprepare(pc->clk);  in rockchip_pwm_remove()