linux-kernel - Re: [PATCH v4 2/2] ASoC: fsl_asrc: Add ASRC ASoC CPU DAI and platform drivers

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Date:	Fri, 25 Jul 2014 15:57:56 +0800
From:	Nicolin Chen <Guangyu.Chen@...escale.com>
To:	Varka Bhadram <varkabhadram@...il.com>
CC:	Nicolin Chen <nicoleotsuka@...il.com>, <broonie@...nel.org>,
	<robh+dt@...nel.org>, <pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<rdunlap@...radead.org>, <lgirdwood@...il.com>, <perex@...ex.cz>,
	<tiwai@...e.de>, <timur@...i.org>, <grant.likely@...aro.org>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<alsa-devel@...a-project.org>, <linuxppc-dev@...ts.ozlabs.org>,
	<shawn.guo@...aro.org>, <b02247@...escale.com>,
	<b42378@...escale.com>, <tklauser@...tanz.ch>
Subject: Re: [PATCH v4 2/2] ASoC: fsl_asrc: Add ASRC ASoC CPU DAI and
 platform drivers

Hi Varka,

Thank you for the comments!

On Fri, Jul 25, 2014 at 01:05:05PM +0530, Varka Bhadram wrote:
> On 07/25/2014 12:49 PM, Nicolin Chen wrote:
> (...)
> 
> >+static const struct platform_device_id fsl_asrc_devtype[] = {
> >+	{
> >+		.name = "imx35-asrc",
> >+		.driver_data = IMX35_ASRC,
> >+	}, {
> >+		.name = "imx53-asrc",
> >+		.driver_data = IMX53_ASRC,
> >+	}, {
> >+		/* sentinel */
> >+	}
> >+};
> >+MODULE_DEVICE_TABLE(platform, fsl_asrc_devtype);
> >+
> 
> where are you using fsl_asrc_devtype,,,?
> 
> >+static const struct of_device_id fsl_asrc_ids[] = {
> >+	{
> >+		.compatible = "fsl,imx35-asrc",
> >+		.data = &fsl_asrc_devtype[IMX35_ASRC],
> 
> Ya here ... but what is the use...?

I got your point. I will drop all these and move ids behind probe/remove()
as you suggested at the first place and then use of_device_is_compatible()
inside the probe() instead.

> >+	asrc_priv->regmap = devm_regmap_init_mmio_clk(&pdev->dev,
> >+			"mem", regs, &fsl_asrc_regmap_config);
> 
> devm_regmap_init_mmio_clk(&pdev->dev,
> 			  "mem", regs,
> 			  &fsl_asrc_regmap_config);

I'll refine to

 devm_regmap_init_mmio_clk(&pdev->dev, "mem", regs,
                           &fsl_asrc_regmap_config);

> 
> >+	if (IS_ERR(asrc_priv->regmap)) {
> >+		dev_err(&pdev->dev, "failed to init regmap\n");
> >+		return PTR_ERR(asrc_priv->regmap);
> >+	}
> >+
> >+	irq = platform_get_irq(pdev, 0);
> >+	if (irq < 0) {
> >+		dev_err(&pdev->dev, "no irq for node %s\n", np->full_name);
> >+		return irq;
> >+	}
> >+
> >+	ret = devm_request_irq(&pdev->dev, irq, fsl_asrc_isr, 0,
> >+			       asrc_priv->name, asrc_priv);
>
> same...

Sorry I don't see any problem with this devm_request_irq()...

Thank you,
Nicolin
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