linux-kernel - Re: [PATCH v4 5/7] watchdog: bcm7038_wdt: Add platform device id for bcm63xx-wdt

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Date:   Tue, 9 Nov 2021 11:38:31 +0100
From:   Rafał Miłecki <zajec5@...il.com>
To:     Florian Fainelli <f.fainelli@...il.com>,
        linux-kernel@...r.kernel.org
Cc:     Guenter Roeck <linux@...ck-us.net>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Rob Herring <robh+dt@...nel.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        "maintainer:BROADCOM BCM63XX ARM ARCHITECTURE" 
        <bcm-kernel-feedback-list@...adcom.com>,
        Justin Chen <justinpopo6@...il.com>,
        "open list:WATCHDOG DEVICE DRIVERS" <linux-watchdog@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "open list:MIPS" <linux-mips@...r.kernel.org>,
        "moderated list:BROADCOM BCM63XX ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4 5/7] watchdog: bcm7038_wdt: Add platform device id for
 bcm63xx-wdt

On 05.11.2021 16:42, Florian Fainelli wrote:
> In order to phase out bcm63xx_wdt and use bcm7038_wdt instead, introduce
> a platform_device_id table that allows both names to be matched.
> 
> Reviewed-by: Guenter Roeck <linux@...ck-us.net>
> Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
> ---
>   drivers/watchdog/bcm7038_wdt.c | 8 ++++++++
>   1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/watchdog/bcm7038_wdt.c b/drivers/watchdog/bcm7038_wdt.c
> index 506cd7ef9c77..a8a0e8485125 100644
> --- a/drivers/watchdog/bcm7038_wdt.c
> +++ b/drivers/watchdog/bcm7038_wdt.c
> @@ -223,8 +223,16 @@ static const struct of_device_id bcm7038_wdt_match[] = {
>   };
>   MODULE_DEVICE_TABLE(of, bcm7038_wdt_match);
>   
> +static const struct platform_device_id bcm7038_wdt_devtype[] = {
> +	{ .name = "bcm7038-wdt" },
> +	{ .name = "bcm63xx-wdt" },
> +	{ /* sentinel */ },
> +};

I don't think I received answer on this: do we really need or want
"bcm7038-wdt" there? BCM7038 uses DT so it should never use a platform
devices created by arch code.