linux-kernel - Re: [PATCH v6 2/9] drm/omap: Add ability to check if requested plane modes can be supported

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Message-ID: <fe492ead-a898-6a03-b936-e448abc24f3e@ideasonboard.com>
Date:   Wed, 27 Oct 2021 11:34:21 +0300
From:   Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
To:     Neil Armstrong <narmstrong@...libre.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 2/9] drm/omap: Add ability to check if requested plane
 modes can be supported

On 18/10/2021 17:28, Neil Armstrong wrote:
> From: Benoit Parrot <bparrot@...com>
> 
> We currently assume that an overlay has the same maximum width and
> maximum height as the overlay manager. This assumption is incorrect. On
> some variants the overlay manager maximum width is twice the maximum
> width that the overlay can handle. We need to add the appropriate data
> per variant as well as export a helper function to retrieve the data so
> check can be made dynamically in omap_plane_atomic_check().
> 
> Signed-off-by: Benoit Parrot <bparrot@...com>
> Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
> ---
>   drivers/gpu/drm/omapdrm/dss/dispc.c  | 22 ++++++++++++++++++++++
>   drivers/gpu/drm/omapdrm/dss/dss.h    |  2 ++
>   drivers/gpu/drm/omapdrm/omap_plane.c | 14 ++++++++++++++
>   3 files changed, 38 insertions(+)

Reviewed-by: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>

  Tomi