linux-kernel - Re: [alsa-devel] [PATCH v3 3/5] ASoC: qcom: add sdm845 sound card support

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Date:   Mon, 9 Jul 2018 13:18:35 +0530
From:   Vinod <vkoul@...nel.org>
To:     Rohit kumar <rohitkr@...eaurora.org>
Cc:     lgirdwood@...il.com, broonie@...nel.org, robh+dt@...nel.org,
        mark.rutland@....com, plai@...eaurora.org, bgoswami@...eaurora.org,
        perex@...ex.cz, srinivas.kandagatla@...aro.org, tiwai@...e.com,
        alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [alsa-devel] [PATCH v3 3/5] ASoC: qcom: add sdm845 sound card
 support

On 06-07-18, 15:13, Rohit kumar wrote:

> +static void sdm845_init_supplies(struct device *dev)
> +{
> +	struct snd_soc_card *card = dev_get_drvdata(dev);
> +	struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
> +
> +	data->vdd_supply = regulator_get(dev, "cdc-vdd");
> +	if (IS_ERR(data->vdd_supply)) {
> +		dev_err(dev, "Unable to get regulator supplies\n");
> +		data->vdd_supply = NULL;
> +		return;
> +	}
> +
> +	if (regulator_enable(data->vdd_supply))
> +		dev_err(dev, "Unable to enable vdd supply\n");
> +}
> +
> +static void sdm845_deinit_supplies(struct device *dev)
> +{
> +	struct snd_soc_card *card = dev_get_drvdata(dev);
> +	struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
> +
> +	if (!data->vdd_supply)
> +		return;
> +
> +	regulator_disable(data->vdd_supply);
> +	regulator_put(data->vdd_supply);
> +}

these two can be made generic, cant we make these common when we have
supplies present?

> +static int sdm845_bind(struct device *dev)
> +{
> +	struct snd_soc_card *card;
> +	struct sdm845_snd_data *data;
> +	int ret;
> +
> +	card = kzalloc(sizeof(*card), GFP_KERNEL);
> +	if (!card)
> +		return -ENOMEM;
> +
> +	/* Allocate the private data */
> +	data = kzalloc(sizeof(*data), GFP_KERNEL);
> +	if (!data)
> +		return -ENOMEM;
> +
> +	ret = component_bind_all(dev, card);
> +	if (ret) {
> +		dev_err(dev, "Audio components bind failed: %d\n", ret);
> +		goto bind_fail;
> +	}
> +
> +	dev_set_drvdata(dev, card);
> +	card->dev = dev;
> +	ret = qcom_snd_parse_of(card);
> +	if (ret) {
> +		dev_err(dev, "Error parsing OF data\n");
> +		goto parse_dt_fail;
> +	}
> +
> +	data->card = card;
> +	snd_soc_card_set_drvdata(card, data);
> +
> +	sdm845_add_be_ops(card);
> +
> +	sdm845_init_supplies(dev);
> +
> +	ret = snd_soc_register_card(card);
> +	if (ret) {
> +		dev_err(dev, "Sound card registration failed\n");
> +		goto register_card_fail;
> +	}
> +	return ret;
> +
> +register_card_fail:
> +	sdm845_deinit_supplies(dev);
> +	kfree(card->dai_link);
> +parse_dt_fail:
> +	component_unbind_all(dev, card);
> +bind_fail:
> +	kfree(data);
> +	kfree(card);
> +	return ret;
> +}

I would make a case for this to be moved into common too :)
-- 
~Vinod