Re: [PATCH 03/10] rtc: armada38x: Use of_device_get_match_data()

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On 04/10/2019 14:43:27-0700, Stephen Boyd wrote:
> Use the more modern API to get the match data out of the of match table.
> This saves some code, lines, and nicely avoids referencing the match
> table when it is undefined with configurations where CONFIG_OF=n.
> 
> Cc: Arnd Bergmann <arnd@xxxxxxxx>
> Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
> Cc: Jason Cooper <jason@xxxxxxxxxxxxxx>
> Cc: Andrew Lunn <andrew@xxxxxxx>
> Cc: Gregory Clement <gregory.clement@xxxxxxxxxxx>
> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx>
> Cc: Alessandro Zummo <a.zummo@xxxxxxxxxxxx>
> Cc: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> Cc: Frank Rowand <frowand.list@xxxxxxxxx>
> Cc: <linux-rtc@xxxxxxxxxxxxxxx>
> Signed-off-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Acked-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>

> ---
> 
> Please ack or pick for immediate merge so the last patch can be merged.
> 
>  drivers/rtc/rtc-armada38x.c | 10 +++-------
>  1 file changed, 3 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/rtc/rtc-armada38x.c b/drivers/rtc/rtc-armada38x.c
> index 9351bd52477e..94d7c22fc4f3 100644
> --- a/drivers/rtc/rtc-armada38x.c
> +++ b/drivers/rtc/rtc-armada38x.c
> @@ -74,7 +74,7 @@ struct armada38x_rtc {
>  	int		    irq;
>  	bool		    initialized;
>  	struct value_to_freq *val_to_freq;
> -	struct armada38x_rtc_data *data;
> +	const struct armada38x_rtc_data *data;
>  };
>  
>  #define ALARM1	0
> @@ -501,17 +501,14 @@ static __init int armada38x_rtc_probe(struct platform_device *pdev)
>  {
>  	struct resource *res;
>  	struct armada38x_rtc *rtc;
> -	const struct of_device_id *match;
> -
> -	match = of_match_device(armada38x_rtc_of_match_table, &pdev->dev);
> -	if (!match)
> -		return -ENODEV;
>  
>  	rtc = devm_kzalloc(&pdev->dev, sizeof(struct armada38x_rtc),
>  			    GFP_KERNEL);
>  	if (!rtc)
>  		return -ENOMEM;
>  
> +	rtc->data = of_device_get_match_data(&pdev->dev);
> +
>  	rtc->val_to_freq = devm_kcalloc(&pdev->dev, SAMPLE_NR,
>  				sizeof(struct value_to_freq), GFP_KERNEL);
>  	if (!rtc->val_to_freq)
> @@ -553,7 +550,6 @@ static __init int armada38x_rtc_probe(struct platform_device *pdev)
>  		 */
>  		rtc->rtc_dev->ops = &armada38x_rtc_ops_noirq;
>  	}
> -	rtc->data = (struct armada38x_rtc_data *)match->data;
>  
>  	/* Update RTC-MBUS bridge timing parameters */
>  	rtc->data->update_mbus_timing(rtc);
> -- 
> Sent by a computer through tubes
> 

-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com



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