linux-kernel - Re: [PATCH v6 1/9] drm/omap: add sanity plane state check

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Message-ID: <e9892eb7-33d6-bb27-b2a0-736e2c326388@baylibre.com>
Date:   Tue, 9 Nov 2021 14:10:22 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
Cc:     linux-omap@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, khilman@...libre.com,
        Benoit Parrot <bparrot@...com>
Subject: Re: [PATCH v6 1/9] drm/omap: add sanity plane state check

On 27/10/2021 10:30, Tomi Valkeinen wrote:
> On 27/10/2021 11:29, Tomi Valkeinen wrote:
>> On 18/10/2021 17:28, Neil Armstrong wrote:
>>> Call drm_atomic_helper_check_plane_state() from the plane
>>> atomic_check() callback in order to add plane state sanity
>>> checking.
>>>
>>> It will permit filtering out totally bad scaling factors, even
>>> if the real check are done later in the atomic commit.
>>
>> I think there's more to it: the function sets plane_state->visible, which is used in later patches.
> 
> Maybe that could be mentioned in a comment. But otherwise:
> 
> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>

Thanks, I'll update the comment to mention this.

Neil

> 
>  Tomi