linux-kernel - Re: [PATCH 08/43] rtc: ep93xx: add DT support for Cirrus EP93xx

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Message-ID: <20230424155629.GA2701399-robh@kernel.org>
Date:   Mon, 24 Apr 2023 10:56:29 -0500
From:   Rob Herring <robh@...nel.org>
To:     Nikita Shubin <nikita.shubin@...uefel.me>
Cc:     Arnd Bergmann <arnd@...nel.org>, Linus Walleij <linusw@...nel.org>,
        Alexander Sverdlin <alexander.sverdlin@...il.com>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 08/43] rtc: ep93xx: add DT support for Cirrus EP93xx

On Mon, Apr 24, 2023 at 03:34:24PM +0300, Nikita Shubin wrote:
> - Find register range from the device tree.
> 
> Signed-off-by: Nikita Shubin <nikita.shubin@...uefel.me>
> ---
> 
> Notes:
>     Arnd Bergmann:
>     - wildcards ep93xx to something meaningful, i.e. ep9301
>     - drop wrappers
> 
>  drivers/rtc/rtc-ep93xx.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/rtc/rtc-ep93xx.c b/drivers/rtc/rtc-ep93xx.c
> index acae7f16808f..8bda20a4940a 100644
> --- a/drivers/rtc/rtc-ep93xx.c
> +++ b/drivers/rtc/rtc-ep93xx.c
> @@ -8,6 +8,7 @@
>  
>  #include <linux/module.h>
>  #include <linux/rtc.h>
> +#include <linux/of.h>

linux/mod_devicetable.h is the actual header you depend on.

>  #include <linux/platform_device.h>
>  #include <linux/io.h>
>  #include <linux/gfp.h>
> @@ -148,9 +149,16 @@ static int ep93xx_rtc_probe(struct platform_device *pdev)
>  	return devm_rtc_register_device(ep93xx_rtc->rtc);
>  }
>  
> +static const struct of_device_id ep93xx_rtc_of_ids[] = {
> +	{ .compatible = "cirrus,ep9301-rtc" },
> +	{},
> +};
> +MODULE_DEVICE_TABLE(of, ep93xx_rtc_of_ids);
> +
>  static struct platform_driver ep93xx_rtc_driver = {
>  	.driver		= {
>  		.name	= "ep93xx-rtc",
> +		.of_match_table = ep93xx_rtc_of_ids,
>  	},
>  	.probe		= ep93xx_rtc_probe,
>  };
> -- 
> 2.39.2
>