C++ (Cpp) atmel_asoc_wm8904_dt_init示例

示例#1

文件： atmel_wm8904.c 项目： AlexShiLucky/linux

static int atmel_asoc_wm8904_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &atmel_asoc_wm8904_card;
	struct snd_soc_dai_link *dailink = &atmel_asoc_wm8904_dailink;
	int id, ret;

	card->dev = &pdev->dev;
	ret = atmel_asoc_wm8904_dt_init(pdev);
	if (ret) {
		dev_err(&pdev->dev, "failed to init dt info\n");
		return ret;
	}

	id = of_alias_get_id((struct device_node *)dailink->cpu_of_node, "ssc");
	ret = atmel_ssc_set_audio(id);
	if (ret != 0) {
		dev_err(&pdev->dev, "failed to set SSC %d for audio\n", id);
		return ret;
	}

	ret = snd_soc_register_card(card);
	if (ret) {
		dev_err(&pdev->dev, "snd_soc_register_card failed\n");
		goto err_set_audio;
	}

	return 0;

err_set_audio:
	atmel_ssc_put_audio(id);
	return ret;
}

示例#2

文件： atmel_wm8904.c 项目： AeroGirl/VAR-SOM-AM33-SDK7-Kernel

static int atmel_asoc_wm8904_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &atmel_asoc_wm8904_card;
	struct snd_soc_dai_link *dailink = &atmel_asoc_wm8904_dailink;
	struct clk *clk_src;
	struct pinctrl *pinctrl;
	int id, ret;

	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
	if (IS_ERR(pinctrl)) {
		dev_err(&pdev->dev, "failed to request pinctrl\n");
		return PTR_ERR(pinctrl);
	}

	card->dev = &pdev->dev;
	ret = atmel_asoc_wm8904_dt_init(pdev);
	if (ret) {
		dev_err(&pdev->dev, "failed to init dt info\n");
		return ret;
	}

	id = of_alias_get_id((struct device_node *)dailink->cpu_of_node, "ssc");
	ret = atmel_ssc_set_audio(id);
	if (ret != 0) {
		dev_err(&pdev->dev, "failed to set SSC %d for audio\n", id);
		return ret;
	}

	mclk = clk_get(NULL, "pck0");
	if (IS_ERR(mclk)) {
		dev_err(&pdev->dev, "failed to get pck0\n");
		ret = PTR_ERR(mclk);
		goto err_set_audio;
	}

	clk_src = clk_get(NULL, "clk32k");
	if (IS_ERR(clk_src)) {
		dev_err(&pdev->dev, "failed to get clk32k\n");
		ret = PTR_ERR(clk_src);
		goto err_set_audio;
	}

	ret = clk_set_parent(mclk, clk_src);
	clk_put(clk_src);
	if (ret != 0) {
		dev_err(&pdev->dev, "failed to set MCLK parent\n");
		goto err_set_audio;
	}

	dev_info(&pdev->dev, "setting pck0 to %dHz\n", MCLK_RATE);
	clk_set_rate(mclk, MCLK_RATE);

	ret = snd_soc_register_card(card);
	if (ret) {
		dev_err(&pdev->dev, "snd_soc_register_card failed\n");
		goto err_set_audio;
	}

	return 0;

err_set_audio:
	atmel_ssc_put_audio(id);
	return ret;
}