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

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Date:   Fri, 6 Mar 2020 14:33:48 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
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