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()
106 	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);  in rockchip_pwm_config()  local
111 	clk_rate = clk_get_rate(pc->clk);  in rockchip_pwm_config()
120 				       pc->data->prescaler * NSEC_PER_SEC);  in rockchip_pwm_config()
123 	duty = DIV_ROUND_CLOSEST_ULL(div, pc->data->prescaler * NSEC_PER_SEC);  in rockchip_pwm_config()
129 	ctrl = readl_relaxed(pc->base + pc->data->regs.ctrl);  in rockchip_pwm_config()
130 	if (pc->data->supports_lock) {  in rockchip_pwm_config()
132 		writel_relaxed(ctrl, pc->base + pc->data->regs.ctrl);  in rockchip_pwm_config()
135 	writel(period, pc->base + pc->data->regs.period);  in rockchip_pwm_config()
136 	writel(duty, pc->base + pc->data->regs.duty);  in rockchip_pwm_config()
138 	if (pc->data->supports_polarity) {  in rockchip_pwm_config()
151 	if (pc->data->supports_lock)  in rockchip_pwm_config()
154 	writel(ctrl, pc->base + pc->data->regs.ctrl);  in rockchip_pwm_config()
161 	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);  in rockchip_pwm_enable()  local
162 	u32 enable_conf = pc->data->enable_conf;  in rockchip_pwm_enable()
167 		ret = clk_enable(pc->clk);  in rockchip_pwm_enable()
172 	val = readl_relaxed(pc->base + pc->data->regs.ctrl);  in rockchip_pwm_enable()
179 	writel_relaxed(val, pc->base + pc->data->regs.ctrl);  in rockchip_pwm_enable()
182 		clk_disable(pc->clk);  in rockchip_pwm_enable()
190 	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);  in rockchip_pwm_apply()  local
195 	ret = clk_enable(pc->pclk);  in rockchip_pwm_apply()
199 	ret = clk_enable(pc->clk);  in rockchip_pwm_apply()
207 	    !pc->data->supports_lock) {  in rockchip_pwm_apply()
222 	clk_disable(pc->clk);  in rockchip_pwm_apply()
223 	clk_disable(pc->pclk);  in rockchip_pwm_apply()
299 	struct rockchip_pwm_chip *pc;  in rockchip_pwm_probe()  local
304 	pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL);  in rockchip_pwm_probe()
305 	if (!pc)  in rockchip_pwm_probe()
308 	pc->base = devm_platform_ioremap_resource(pdev, 0);  in rockchip_pwm_probe()
309 	if (IS_ERR(pc->base))  in rockchip_pwm_probe()
310 		return PTR_ERR(pc->base);  in rockchip_pwm_probe()
312 	pc->clk = devm_clk_get(&pdev->dev, "pwm");  in rockchip_pwm_probe()
313 	if (IS_ERR(pc->clk)) {  in rockchip_pwm_probe()
314 		pc->clk = devm_clk_get(&pdev->dev, NULL);  in rockchip_pwm_probe()
315 		if (IS_ERR(pc->clk))  in rockchip_pwm_probe()
316 			return dev_err_probe(&pdev->dev, PTR_ERR(pc->clk),  in rockchip_pwm_probe()
323 		pc->pclk = devm_clk_get(&pdev->dev, "pclk");  in rockchip_pwm_probe()
325 		pc->pclk = pc->clk;  in rockchip_pwm_probe()
327 	if (IS_ERR(pc->pclk))  in rockchip_pwm_probe()
328 		return dev_err_probe(&pdev->dev, PTR_ERR(pc->pclk), "Can't get APB clk\n");  in rockchip_pwm_probe()
330 	ret = clk_prepare_enable(pc->clk);  in rockchip_pwm_probe()
334 	ret = clk_prepare_enable(pc->pclk);  in rockchip_pwm_probe()
340 	platform_set_drvdata(pdev, pc);  in rockchip_pwm_probe()
342 	pc->data = device_get_match_data(&pdev->dev);  in rockchip_pwm_probe()
343 	pc->chip.dev = &pdev->dev;  in rockchip_pwm_probe()
344 	pc->chip.ops = &rockchip_pwm_ops;  in rockchip_pwm_probe()
345 	pc->chip.npwm = 1;  in rockchip_pwm_probe()
347 	enable_conf = pc->data->enable_conf;  in rockchip_pwm_probe()
348 	ctrl = readl_relaxed(pc->base + pc->data->regs.ctrl);  in rockchip_pwm_probe()
351 	ret = pwmchip_add(&pc->chip);  in rockchip_pwm_probe()
359 		clk_disable(pc->clk);  in rockchip_pwm_probe()
361 	clk_disable(pc->pclk);  in rockchip_pwm_probe()
366 	clk_disable_unprepare(pc->pclk);  in rockchip_pwm_probe()
368 	clk_disable_unprepare(pc->clk);  in rockchip_pwm_probe()
375 	struct rockchip_pwm_chip *pc = platform_get_drvdata(pdev);  in rockchip_pwm_remove()  local
377 	pwmchip_remove(&pc->chip);  in rockchip_pwm_remove()
379 	clk_unprepare(pc->pclk);  in rockchip_pwm_remove()
380 	clk_unprepare(pc->clk);  in rockchip_pwm_remove()