linux-kernel - Re: [PATCH 3/7] iio: adc: rockchip_saradc: Use of_device_get_match

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Message-ID: <632269cc-db60-d405-d31f-b80a7faf1791@collabora.com>
Date:   Wed, 17 May 2023 12:34:01 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Shreeya Patel <shreeya.patel@...labora.com>, jic23@...nel.org,
        lars@...afoo.de, heiko@...ech.de, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, sebastian.reichel@...labora.com
Cc:     linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com, gustavo.padovan@...labora.com,
        serge.broslavsky@...labora.com
Subject: Re: [PATCH 3/7] iio: adc: rockchip_saradc: Use
 of_device_get_match_data

Il 17/05/23 01:00, Shreeya Patel ha scritto:
> Use of_device_get_match_data() to simplify the code.
> 
> Signed-off-by: Shreeya Patel <shreeya.patel@...labora.com>
> ---
>   drivers/iio/adc/rockchip_saradc.c | 8 ++++----
>   1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c
> index 05b66eff9a44..05ea823a8f16 100644
> --- a/drivers/iio/adc/rockchip_saradc.c
> +++ b/drivers/iio/adc/rockchip_saradc.c
> @@ -408,10 +408,10 @@ static void rockchip_saradc_regulator_unreg_notifier(void *data)
>   
>   static int rockchip_saradc_probe(struct platform_device *pdev)
>   {
> +	const struct rockchip_saradc_data *match_data;

s/match_data/data/g maybe?

Regardless of that,

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>

>   	struct rockchip_saradc *info = NULL;
>   	struct device_node *np = pdev->dev.of_node;
>   	struct iio_dev *indio_dev = NULL;
> -	const struct of_device_id *match;
>   	int ret;
>   	int irq;
>   
> @@ -425,13 +425,13 @@ static int rockchip_saradc_probe(struct platform_device *pdev)
>   	}
>   	info = iio_priv(indio_dev);
>   
> -	match = of_match_device(rockchip_saradc_match, &pdev->dev);
> -	if (!match) {
> +	match_data = of_device_get_match_data(&pdev->dev);
> +	if (!match_data) {
>   		dev_err(&pdev->dev, "failed to match device\n");
>   		return -ENODEV;
>   	}
>   
> -	info->data = match->data;
> +	info->data = match_data;
>   
>   	/* Sanity check for possible later IP variants with more channels */
>   	if (info->data->num_channels > SARADC_MAX_CHANNELS) {