388 	struct sun4i_pwm_chip *sun4ichip;  in sun4i_pwm_probe()  local
391 	sun4ichip = devm_kzalloc(&pdev->dev, sizeof(*sun4ichip), GFP_KERNEL);  in sun4i_pwm_probe()
392 	if (!sun4ichip)  in sun4i_pwm_probe()
395 	sun4ichip->data = of_device_get_match_data(&pdev->dev);  in sun4i_pwm_probe()
396 	if (!sun4ichip->data)  in sun4i_pwm_probe()
399 	sun4ichip->base = devm_platform_ioremap_resource(pdev, 0);  in sun4i_pwm_probe()
400 	if (IS_ERR(sun4ichip->base))  in sun4i_pwm_probe()
401 		return PTR_ERR(sun4ichip->base);  in sun4i_pwm_probe()
414 	sun4ichip->clk = devm_clk_get_optional(&pdev->dev, "mod");  in sun4i_pwm_probe()
415 	if (IS_ERR(sun4ichip->clk))  in sun4i_pwm_probe()
416 		return dev_err_probe(&pdev->dev, PTR_ERR(sun4ichip->clk),  in sun4i_pwm_probe()
419 	if (!sun4ichip->clk) {  in sun4i_pwm_probe()
420 		sun4ichip->clk = devm_clk_get(&pdev->dev, NULL);  in sun4i_pwm_probe()
421 		if (IS_ERR(sun4ichip->clk))  in sun4i_pwm_probe()
422 			return dev_err_probe(&pdev->dev, PTR_ERR(sun4ichip->clk),  in sun4i_pwm_probe()
426 	sun4ichip->bus_clk = devm_clk_get_optional(&pdev->dev, "bus");  in sun4i_pwm_probe()
427 	if (IS_ERR(sun4ichip->bus_clk))  in sun4i_pwm_probe()
428 		return dev_err_probe(&pdev->dev, PTR_ERR(sun4ichip->bus_clk),  in sun4i_pwm_probe()
431 	sun4ichip->rst = devm_reset_control_get_optional_shared(&pdev->dev, NULL);  in sun4i_pwm_probe()
432 	if (IS_ERR(sun4ichip->rst))  in sun4i_pwm_probe()
433 		return dev_err_probe(&pdev->dev, PTR_ERR(sun4ichip->rst),  in sun4i_pwm_probe()
437 	ret = reset_control_deassert(sun4ichip->rst);  in sun4i_pwm_probe()
448 	ret = clk_prepare_enable(sun4ichip->bus_clk);  in sun4i_pwm_probe()
455 	sun4ichip->chip.dev = &pdev->dev;  in sun4i_pwm_probe()
456 	sun4ichip->chip.ops = &sun4i_pwm_ops;  in sun4i_pwm_probe()
457 	sun4ichip->chip.npwm = sun4ichip->data->npwm;  in sun4i_pwm_probe()
459 	spin_lock_init(&sun4ichip->ctrl_lock);  in sun4i_pwm_probe()
461 	ret = pwmchip_add(&sun4ichip->chip);  in sun4i_pwm_probe()
467 	platform_set_drvdata(pdev, sun4ichip);  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()
481 	struct sun4i_pwm_chip *sun4ichip = platform_get_drvdata(pdev);  in sun4i_pwm_remove()  local
483 	pwmchip_remove(&sun4ichip->chip);  in sun4i_pwm_remove()
485 	clk_disable_unprepare(sun4ichip->bus_clk);  in sun4i_pwm_remove()
486 	reset_control_assert(sun4ichip->rst);  in sun4i_pwm_remove()