linux-kernel - Re: [PATCH v4 2/10] pwm: mediatek: droping the check for of_device_get_match

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Message-ID: <20190820054057.xtbhtjm65f6rphcg@pengutronix.de>
Date:   Tue, 20 Aug 2019 07:40:57 +0200
From:   Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
To:     Sam Shih <sam.shih@...iatek.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Ryder Lee <ryder.lee@...iatek.com>,
        John Crispin <john@...ozen.org>, linux-pwm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v4 2/10] pwm: mediatek: droping the check for
 of_device_get_match_data

Hello,

On Tue, Aug 20, 2019 at 09:40:17AM +0800, Sam Shih wrote:
> From: sam shih <sam.shih@...iatek.com>

Your Signed-off-by and the mail's From uses capital letters. Can you
please make them all match?

> This patch drop the check for of_device_get_match_data.
> Due to the only way call driver probe is compatible match,
> In this case, the platform data should never be NULL.

Yeah, all entries in the of_match_table have a .data pointer.
Theoretically the driver could be bound by driver.name and then
of_device_get_match_data returns NULL.

It's still ok to drop this check if you want to, I just want to make
sure this possibility is known.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |