On Thu 14 Dec 09:34 PST 2017, srinivas.kandagatla@linaro.org wrote:

From: Srinivas Kandagatla <redacted>

uThis patch adds support to DB820c machine driver.

Drop 'u' and expand the message to claim that this is the machine driver
for 8996, used by the db820c.

[..]

+static struct snd_soc_dai_link msm8996_dai_links[] = {

Are there any differences between the DAI links of apq8096 and msm8996?

+	/* FrontEnd DAI Links */
+	{
+		.name		= "MultiMedia1 Playback",
+		.stream_name	= "MultiMedia1",
+		.cpu_dai_name	= "MM_DL1",
+		.platform_name	= "q6asm_dai",
+		.dynamic	= 1,
+		.dpcm_playback	= 1,
+
+		.codec_dai_name	= "snd-soc-dummy-dai",
+		.codec_name = "snd-soc-dummy",
+	},
+	/* Backend DAI Links */
+	{
+		.name		= "HDMI Playback",
+		.stream_name	= "q6afe_dai",
+		.cpu_dai_name	= "HDMI",
+		.platform_name	= "q6routing",
+		.no_pcm		= 1,
+		.dpcm_playback	= 1,
+		.be_hw_params_fixup = msm8996_be_hw_params_fixup,
+		.codec_dai_name	= "i2s-hifi",
+		.codec_name = "hdmi-audio-codec.0.auto",
+	},
+};
+
+static int apq8096_sbc_parse_of(struct snd_soc_card *card)

msm8996_parse_of()

+{
+	struct device *dev = card->dev;
+	int ret;
+
+	ret = snd_soc_of_parse_card_name(card, "qcom,model");
+	if (ret)
+		dev_err(dev, "Error parsing card name: %d\n", ret);
+
+	return ret;
+}
+
+static int msm_snd_apq8096_probe(struct platform_device *pdev)

msm_snd_msm8996_probe()?

+{
+	int ret;
+	struct snd_soc_card *card;
+
+	card = devm_kzalloc(&pdev->dev, sizeof(*card), GFP_KERNEL);
+	if (!card)
+		return -ENOMEM;
+
+	card->dev = &pdev->dev;
+
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
+
+	card->dai_link = msm8996_dai_links;
+	card->num_links	= ARRAY_SIZE(msm8996_dai_links);
+
+	ret = apq8096_sbc_parse_of(card);
+	if (ret) {
+		dev_err(&pdev->dev, "Error parsing OF data\n");

No need to print in both parse_of() and here.

+		return ret;
+	}
+
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
+	if (ret)
+		dev_err(&pdev->dev, "sound card register failed (%d)!\n", ret);
+	else
+		dev_err(&pdev->dev, "sound card register Sucessfull\n");

This isn't an error, skip the print here.

+
+	return ret;
+}
+
+static const struct of_device_id msm_snd_apq8096_dt_match[] = {
+	{.compatible = "qcom,apq8096-sndcard"},
+	{}
+};
+
+static struct platform_driver msm_snd_apq8096_driver = {
+	.probe  = msm_snd_apq8096_probe,
+	.driver = {
+		.name = "msm-snd-apq8096",
+		.owner = THIS_MODULE,

Drop the .owner

Regards,
Bjorn