linux-kernel - Re: [PATCH v5 0/8] drm/omap: Add virtual-planes support

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Date:   Wed, 6 Oct 2021 10:17:07 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     tomba@...nel.org
Cc:     linux-omap@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, khilman@...libre.com
Subject: Re: [PATCH v5 0/8] drm/omap: Add virtual-planes support

Hi,

On 23/09/2021 09:06, Neil Armstrong wrote:
> This patchset is the follow-up the v4 patchset from Benoit Parrot at [1].
> 
> This patch series adds virtual-plane support to omapdrm driver to allow the use
> of display wider than 2048 pixels.
> 
> In order to do so we introduce the concept of hw_overlay which can then be
> dynamically allocated to a plane. When the requested output width exceed what
> be supported by one overlay a second is then allocated if possible to handle
> display wider then 2048.
> 
> This series replaces an earlier series which was DT based and using statically
> allocated resources. 
> 
> This implementation is inspired from the work done in msm/disp/mdp5
> driver.

Gentle ping, who is supposed reviewing those patches ?

Thanks,
Neil

> 
> Changes since v4 at [1]:
> - rebased on v5.15-rc2
> - adapted to drm_atomic_get_new/old_plane_state()
> - tested on Beagle-x15
> - checked for non-regression on Beagle-x15
> - removed unused "state" variable in omap_global_state
> 
> [1] https://lore.kernel.org/all/20181012201703.29065-1-bparrot@ti.com/
> 
> Benoit Parrot (8):
>   drm/omap: Add ability to check if requested plane modes can be
>     supported
>   drm/omap: Add ovl checking funcs to dispc_ops
>   drm/omap: introduce omap_hw_overlay
>   drm/omap: omap_plane: subclass drm_plane_state
>   drm/omap: Add global state as a private atomic object
>   drm/omap: dynamically assign hw overlays to planes
>   drm/omap: add plane_atomic_print_state support
>   drm/omap: Add a 'right overlay' to plane state
> 
>  drivers/gpu/drm/omapdrm/Makefile       |   1 +
>  drivers/gpu/drm/omapdrm/dss/dispc.c    |  31 +-
>  drivers/gpu/drm/omapdrm/dss/dss.h      |   5 +
>  drivers/gpu/drm/omapdrm/omap_drv.c     | 189 ++++++++++++-
>  drivers/gpu/drm/omapdrm/omap_drv.h     |  28 ++
>  drivers/gpu/drm/omapdrm/omap_fb.c      |  33 ++-
>  drivers/gpu/drm/omapdrm/omap_fb.h      |   4 +-
>  drivers/gpu/drm/omapdrm/omap_overlay.c | 254 +++++++++++++++++
>  drivers/gpu/drm/omapdrm/omap_overlay.h |  41 +++
>  drivers/gpu/drm/omapdrm/omap_plane.c   | 375 +++++++++++++++++++++----
>  drivers/gpu/drm/omapdrm/omap_plane.h   |   1 +
>  11 files changed, 903 insertions(+), 59 deletions(-)
>  create mode 100644 drivers/gpu/drm/omapdrm/omap_overlay.c
>  create mode 100644 drivers/gpu/drm/omapdrm/omap_overlay.h
>