linux-kernel - RE: [PATCH] ASoC: brcm: Add DSL/PON SoC audio driver

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Message-ID: <31b665e609f3cfee935f4489a073af21@mail.gmail.com>
Date:   Fri, 6 Mar 2020 14:50:46 -0800
From:   Kevin Li <kevin-ke.li@...adcom.com>
To:     Florian Fainelli <f.fainelli@...il.com>,
        Mark Brown <broonie@...nel.org>
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Scott Branden <sbranden@...adcom.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Ray Jui <rjui@...adcom.com>, Takashi Iwai <tiwai@...e.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        bcm-kernel-feedback-list@...adcom.com,
        Stephen Boyd <swboyd@...omium.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: RE: [PATCH] ASoC: brcm: Add DSL/PON SoC audio driver

Hi Florian,

It is called from bcm63xx-i2s-whistler.c.
Maybe the name "_probe" function confused. It was 2 platform drivers, I
combined them together now.

Let me know if this answers your question, and what to do to address your
question.

Regards!
Kevin

-----Original Message-----
From: Florian Fainelli [mailto:f.fainelli@...il.com]
Sent: Friday, March 06, 2020 2:34 PM
To: Kevin Li <kevin-ke.li@...adcom.com>; Mark Brown <broonie@...nel.org>
Cc: alsa-devel@...a-project.org; linux-kernel@...r.kernel.org; Kuninori
Morimoto <kuninori.morimoto.gx@...esas.com>; Scott Branden
<sbranden@...adcom.com>; Liam Girdwood <lgirdwood@...il.com>; Ray Jui
<rjui@...adcom.com>; Takashi Iwai <tiwai@...e.com>; Jaroslav Kysela
<perex@...ex.cz>; bcm-kernel-feedback-list@...adcom.com; Stephen Boyd
<swboyd@...omium.org>; linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] ASoC: brcm: Add DSL/PON SoC audio driver

On 3/6/20 2:27 PM, Kevin Li wrote:
> This patch adds Broadcom DSL/PON SoC audio driver with Whistler I2S
> block. The SoC supported by this patch are BCM63158B0,BCM63178 and
> BCM47622/6755.
>
> Signed-off-by: Kevin Li <kevin-ke.li@...adcom.com>
> ---

[snip]

> +int bcm63xx_soc_platform_probe(struct platform_device *pdev,
> +			       struct bcm_i2s_priv *i2s_priv) {
> +	int ret;
> +
> +	i2s_priv->r_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
> +	if (!i2s_priv->r_irq) {
> +		dev_err(&pdev->dev, "Unable to get register irq resource.\n");
> +		return -ENODEV;
> +	}
> +
> +	ret = devm_request_irq(&pdev->dev, i2s_priv->r_irq->start, i2s_dma_isr,
> +			i2s_priv->r_irq->flags, "i2s_dma", (void *)i2s_priv);
> +	if (ret) {
> +		dev_err(&pdev->dev,
> +			"i2s_init: failed to request interrupt.ret=%d\n", ret);
> +		return ret;
> +	}
> +
> +	return devm_snd_soc_register_component(&pdev->dev,
> +					&bcm63xx_soc_platform, NULL, 0); }
> +
> +int bcm63xx_soc_platform_remove(struct platform_device *pdev) {
> +	return 0;
> +}

How does one probe this module if the bcm63xx_soc_platform_probe() functions
are not called from anywhere and/or hooked up to the module entry/exit
points?

Are you not missing a platform_driver entry which matches the compatible
string you defined?
--
Florian