Re: [PATCH] watchdog: st_lpc: Use device_get_match_data()

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On Mon, Oct 09, 2023 at 04:13:48PM -0500, Rob Herring wrote:
> Use preferred device_get_match_data() instead of of_match_device() to
> get the driver match data. With this, adjust the includes to explicitly
> include the correct headers.
> 
> Signed-off-by: Rob Herring <robh@xxxxxxxxxx>

Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>

> ---
>  drivers/watchdog/st_lpc_wdt.c | 11 ++---------
>  1 file changed, 2 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/watchdog/st_lpc_wdt.c b/drivers/watchdog/st_lpc_wdt.c
> index d2aa43c00221..4c5b8d98a4f3 100644
> --- a/drivers/watchdog/st_lpc_wdt.c
> +++ b/drivers/watchdog/st_lpc_wdt.c
> @@ -15,7 +15,6 @@
>  #include <linux/mfd/syscon.h>
>  #include <linux/module.h>
>  #include <linux/of.h>
> -#include <linux/of_platform.h>
>  #include <linux/platform_device.h>
>  #include <linux/regmap.h>
>  #include <linux/watchdog.h>
> @@ -42,7 +41,7 @@ struct st_wdog {
>  	void __iomem *base;
>  	struct device *dev;
>  	struct regmap *regmap;
> -	struct st_wdog_syscfg *syscfg;
> +	const struct st_wdog_syscfg *syscfg;
>  	struct clk *clk;
>  	unsigned long clkrate;
>  	bool warm_reset;
> @@ -150,7 +149,6 @@ static void st_clk_disable_unprepare(void *data)
>  static int st_wdog_probe(struct platform_device *pdev)
>  {
>  	struct device *dev = &pdev->dev;
> -	const struct of_device_id *match;
>  	struct device_node *np = dev->of_node;
>  	struct st_wdog *st_wdog;
>  	struct regmap *regmap;
> @@ -173,12 +171,7 @@ static int st_wdog_probe(struct platform_device *pdev)
>  	if (!st_wdog)
>  		return -ENOMEM;
>  
> -	match = of_match_device(st_wdog_match, dev);
> -	if (!match) {
> -		dev_err(dev, "Couldn't match device\n");
> -		return -ENODEV;
> -	}
> -	st_wdog->syscfg	= (struct st_wdog_syscfg *)match->data;
> +	st_wdog->syscfg	= (struct st_wdog_syscfg *)device_get_match_data(dev);
>  
>  	base = devm_platform_ioremap_resource(pdev, 0);
>  	if (IS_ERR(base))
> -- 
> 2.42.0
> 



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