linux-kernel - Re: [PATCH 3/3] ASoC: ti: davinci-evm: Use of_device_get_match

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Message-ID: <b096a803-093a-b70f-2999-38bfe8978513@gmail.com>
Date:   Mon, 16 Aug 2021 21:34:10 +0300
From:   Péter Ujfalusi <peter.ujfalusi@...il.com>
To:     Aakash Hemadri <aakashhemadri123@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>
Cc:     Takashi Iwai <tiwai@...e.com>, Jawoslav Kysela <perex@...ex.cz>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        Shuah Khan <skhan@...uxfoundation.org>,
        Bjorn Helgaas <bjorn@...gaas.com>
Subject: Re: [PATCH 3/3] ASoC: ti: davinci-evm: Use of_device_get_match_data



On 14/08/2021 23:19, Aakash Hemadri wrote:
> Prefer `of_device_get_match_data` over `of_match_device`
> 
> Retrieve OF match data using `of_device_get_match_data`, this is cleaner
> and better expresses intent.
> 
> Signed-off-by: Aakash Hemadri <aakashhemadri123@...il.com>
> ---
>  sound/soc/ti/davinci-evm.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/sound/soc/ti/davinci-evm.c b/sound/soc/ti/davinci-evm.c
> index b043a0070d20..bf13f3d25cec 100644
> --- a/sound/soc/ti/davinci-evm.c
> +++ b/sound/soc/ti/davinci-evm.c
> @@ -389,7 +389,7 @@ static int davinci_evm_probe(struct platform_device *pdev)
>  	struct clk *mclk;
>  	int ret = 0;
>  
> -	match = of_match_device(of_match_ptr(davinci_evm_dt_ids), &pdev->dev);
> +	match = of_device_get_match_data(&pdev->dev);

incorrect,
of_device_get_match_data() is retrieving the match->data

>  	if (!match) {
>  		dev_err(&pdev->dev, "Error: No device match found\n");
>  		return -ENODEV;
> 

-- 
Péter