linux-kernel - Re: [PATCH v1 10/13] ASoC: qcom: Add apq8016 lpass driver support

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Date:	Fri, 15 May 2015 09:46:17 +0100
From:	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:	Patrick Lai <plai@...eaurora.org>, Mark Brown <broonie@...nel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Banajit Goswami <bgoswami@...eaurora.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	alsa-devel@...a-project.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v1 10/13] ASoC: qcom: Add apq8016 lpass driver support

Thanks for review,

On 15/05/15 06:23, Kenneth Westfield wrote:
> On Wed, May 13, 2015 at 05:03:06AM -0700, Srinivas Kandagatla wrote:
>> This patch adds apq8016 lpass driver support. APQ8016 has 4 MI2S which
>> can be routed to one internal codec and 2 external codec interfaces.
>>
>> Primary, Secondary, Quaternary I2S can do Rx(playback) and Tertiary and
>> Quaternary can do Tx(capture).
>
>> diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig
>> index 865205e..9cc5ed7 100644
>> --- a/sound/soc/qcom/Kconfig
>> +++ b/sound/soc/qcom/Kconfig
>> @@ -20,6 +20,12 @@ config SND_SOC_LPASS_IPQ806X
>>   	select SND_SOC_LPASS_CPU
>>   	select SND_SOC_LPASS_PLATFORM
>>
>> +config SND_SOC_LPASS_APQ8016
>> +	tristate
>> +	depends on SND_SOC_QCOM
>> +	select SND_SOC_LPASS_CPU
>> +	select SND_SOC_LPASS_PLATFORM
>
> Continuing from my comments on patch 2/13, should an OF dependency be added
> here as well?
LPASS_CPU and LPASS_PLATFORM already has this dependency, so there is no 
chance that APQ8016 can be selected without OF.

>
>> +
>>   config SND_SOC_STORM
>>   	tristate "ASoC I2S support for Storm boards"
>>   	depends on (ARCH_QCOM && SND_SOC_QCOM) || COMPILE_TEST
>
>> diff --git a/sound/soc/qcom/lpass-apq8016.c
>> b/sound/soc/qcom/lpass-apq8016.c
>> new file mode 100644
>> index 0000000..5cbf17f0
>> --- /dev/null
>> +++ b/sound/soc/qcom/lpass-apq8016.c
>
>> +static int apq8016_lpass_free_dma_channel(struct lpass_data *drvdata, int
>> chan)
>> +{
>> +	clear_bit(chan, &drvdata->rdma_ch_bit_map);
>> +
>> +	return 0;
>> +}
>> +
>> +static int apq8016_lpass_init(struct platform_device *pdev)
>> +{
>> +	struct lpass_data *drvdata = platform_get_drvdata(pdev);
>> +	struct device *dev = &pdev->dev;
>> +	int ret;
>> +
>> +	drvdata->pcnoc_mport_clk = devm_clk_get(dev, "pcnoc-mport-clk");
>> +	if (IS_ERR(drvdata->pcnoc_mport_clk)) {
>> +		dev_err(&pdev->dev, "%s() error getting pcnoc-mport-clk:
>> %ld\n",
>> +				__func__,
>> PTR_ERR(drvdata->pcnoc_mport_clk));
>> +		return PTR_ERR(drvdata->pcnoc_mport_clk);
>> +	}
>> +
>> +	ret = clk_prepare_enable(drvdata->pcnoc_mport_clk);
>> +	if (ret) {
>> +		dev_err(&pdev->dev, "%s() Error enabling ahbix_clk: %d\n",
>
> Please correct the clock name in the log message ...
>
Yep, will fix it.
>> +				__func__, ret);
>> +		return ret;
>> +	}
>> +
>> +	drvdata->pcnoc_sway_clk = devm_clk_get(dev, "pcnoc-sway-clk");
>> +	if (IS_ERR(drvdata->pcnoc_sway_clk)) {
>> +		dev_err(&pdev->dev, "%s() error getting pcnoc-sway-clk:
>> %ld\n",
>> +				__func__,
>> PTR_ERR(drvdata->pcnoc_sway_clk));
>> +		return PTR_ERR(drvdata->pcnoc_sway_clk);
>> +	}
>> +
>> +	ret = clk_prepare_enable(drvdata->pcnoc_sway_clk);
>> +	if (ret) {
>> +		dev_err(&pdev->dev, "%s() Error enabling ahbix_clk: %d\n",
>
> ... here too.
>
Sure, I will fix it.

--srini
>> +				__func__, ret);
>> +		return ret;
>> +	}
>
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