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 	clk_rate = clk_get_rate(pc->clk);  in rockchip_pwm_get_state()
77 	tmp = readl_relaxed(pc->base + pc->data->regs.period);  in rockchip_pwm_get_state()
78 	tmp *= pc->data->prescaler * NSEC_PER_SEC;  in rockchip_pwm_get_state()
81 	tmp = readl_relaxed(pc->base + pc->data->regs.duty);  in rockchip_pwm_get_state()
82 	tmp *= pc->data->prescaler * NSEC_PER_SEC;  in rockchip_pwm_get_state()
85 	val = readl_relaxed(pc->base + pc->data->regs.ctrl);  in rockchip_pwm_get_state()
88 	if (pc->data->supports_polarity && !(val & PWM_DUTY_POSITIVE))  in rockchip_pwm_get_state()
93 	clk_disable(pc->pclk);  in rockchip_pwm_get_state()
99 	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);  in rockchip_pwm_config()  local
104 	clk_rate = clk_get_rate(pc->clk);  in rockchip_pwm_config()
113 				       pc->data->prescaler * NSEC_PER_SEC);  in rockchip_pwm_config()
116 	duty = DIV_ROUND_CLOSEST_ULL(div, pc->data->prescaler * NSEC_PER_SEC);  in rockchip_pwm_config()
122 	ctrl = readl_relaxed(pc->base + pc->data->regs.ctrl);  in rockchip_pwm_config()
123 	if (pc->data->supports_lock) {  in rockchip_pwm_config()
125 		writel_relaxed(ctrl, pc->base + pc->data->regs.ctrl);  in rockchip_pwm_config()
128 	writel(period, pc->base + pc->data->regs.period);  in rockchip_pwm_config()
129 	writel(duty, pc->base + pc->data->regs.duty);  in rockchip_pwm_config()
131 	if (pc->data->supports_polarity) {  in rockchip_pwm_config()
144 	if (pc->data->supports_lock)  in rockchip_pwm_config()
147 	writel(ctrl, pc->base + pc->data->regs.ctrl);  in rockchip_pwm_config()
154 	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);  in rockchip_pwm_enable()  local
155 	u32 enable_conf = pc->data->enable_conf;  in rockchip_pwm_enable()
160 		ret = clk_enable(pc->clk);  in rockchip_pwm_enable()
165 	val = readl_relaxed(pc->base + pc->data->regs.ctrl);  in rockchip_pwm_enable()
172 	writel_relaxed(val, pc->base + pc->data->regs.ctrl);  in rockchip_pwm_enable()
175 		clk_disable(pc->clk);  in rockchip_pwm_enable()
183 	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);  in rockchip_pwm_apply()  local
188 	ret = clk_enable(pc->pclk);  in rockchip_pwm_apply()
196 	    !pc->data->supports_lock) {  in rockchip_pwm_apply()
211 	clk_disable(pc->pclk);  in rockchip_pwm_apply()
289 	struct rockchip_pwm_chip *pc;  in rockchip_pwm_probe()  local
298 	pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL);  in rockchip_pwm_probe()
299 	if (!pc)  in rockchip_pwm_probe()
303 	pc->base = devm_ioremap_resource(&pdev->dev, r);  in rockchip_pwm_probe()
304 	if (IS_ERR(pc->base))  in rockchip_pwm_probe()
305 		return PTR_ERR(pc->base);  in rockchip_pwm_probe()
307 	pc->clk = devm_clk_get(&pdev->dev, "pwm");  in rockchip_pwm_probe()
308 	if (IS_ERR(pc->clk)) {  in rockchip_pwm_probe()
309 		pc->clk = devm_clk_get(&pdev->dev, NULL);  in rockchip_pwm_probe()
310 		if (IS_ERR(pc->clk))  in rockchip_pwm_probe()
311 			return dev_err_probe(&pdev->dev, PTR_ERR(pc->clk),  in rockchip_pwm_probe()
318 		pc->pclk = devm_clk_get(&pdev->dev, "pclk");  in rockchip_pwm_probe()
320 		pc->pclk = pc->clk;  in rockchip_pwm_probe()
322 	if (IS_ERR(pc->pclk)) {  in rockchip_pwm_probe()
323 		ret = PTR_ERR(pc->pclk);  in rockchip_pwm_probe()
329 	ret = clk_prepare_enable(pc->clk);  in rockchip_pwm_probe()
335 	ret = clk_prepare(pc->pclk);  in rockchip_pwm_probe()
341 	platform_set_drvdata(pdev, pc);  in rockchip_pwm_probe()
343 	pc->data = id->data;  in rockchip_pwm_probe()
344 	pc->chip.dev = &pdev->dev;  in rockchip_pwm_probe()
345 	pc->chip.ops = &rockchip_pwm_ops;  in rockchip_pwm_probe()
346 	pc->chip.base = -1;  in rockchip_pwm_probe()
347 	pc->chip.npwm = 1;  in rockchip_pwm_probe()
349 	if (pc->data->supports_polarity) {  in rockchip_pwm_probe()
350 		pc->chip.of_xlate = of_pwm_xlate_with_flags;  in rockchip_pwm_probe()
351 		pc->chip.of_pwm_n_cells = 3;  in rockchip_pwm_probe()
354 	ret = pwmchip_add(&pc->chip);  in rockchip_pwm_probe()
356 		clk_unprepare(pc->clk);  in rockchip_pwm_probe()
362 	enable_conf = pc->data->enable_conf;  in rockchip_pwm_probe()
363 	ctrl = readl_relaxed(pc->base + pc->data->regs.ctrl);  in rockchip_pwm_probe()
365 		clk_disable(pc->clk);  in rockchip_pwm_probe()
370 	clk_unprepare(pc->pclk);  in rockchip_pwm_probe()
372 	clk_disable_unprepare(pc->clk);  in rockchip_pwm_probe()
379 	struct rockchip_pwm_chip *pc = platform_get_drvdata(pdev);  in rockchip_pwm_remove()  local
392 	if (pwm_is_enabled(pc->chip.pwms))  in rockchip_pwm_remove()
393 		clk_disable(pc->clk);  in rockchip_pwm_remove()
395 	clk_unprepare(pc->pclk);  in rockchip_pwm_remove()
396 	clk_unprepare(pc->clk);  in rockchip_pwm_remove()
398 	return pwmchip_remove(&pc->chip);  in rockchip_pwm_remove()