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SubjectRe: [RESEND PATCH v2 14/15] ASoC: qcom: apq8096: Add db820c machine driver
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Thanks for the review comments.


On 03/01/18 00:16, Bjorn Andersson wrote:
> On Thu 14 Dec 09:34 PST 2017, srinivas.kandagatla@linaro.org wrote:
>
>> From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
>>
>> 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?
>
This driver is more of board specific,
Am not 100% sure about msm8996, on apq8096 in particularly on db820c we
got hdmi and analog audio connected via slimbus and also I2S on lowspeed
connector.

>> + /* 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()

sure if it helps.

>
>> +{
>> + 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()?
sure
>
>> +{
>> + 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.
>
yep.

>> + 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.
>
yep.

>> +
>> + 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
>
yep
> Regards,
> Bjorn
>

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