On Mon, 17 Feb 2025 12:17:40 +0100, Marijn Suijten wrote:
> This series covers a step-up towards supporting the DUALPIPE DSC
> topology, also known as 2:2:2 topology (on active-CTL hardware). It
> involves 2 layer mixers, 2 DSC compression encoders, and 2 interfaces
> (on DSI, this is called bonded-DSI) where bandwidth constraints (e.g. 4k
> panels at 120Hz) require two interfaces to transmit pixel data.
>
> Enabling this topology will be hard(er) than downstream as hacking a
> layout type in DTS won't be describing the hardware, but "dynamically"
> determining it at runtime may pose some of a challenge that is left to a
> future series. Such changes will also involve the 1:1:1 topology needed
> for constrained hardware like the Fairphone 5 on SC7280 with access to
> only one DSC encoder and thus ruled out of the current 2:2:1 topology.
>
> [...]
Applied, thanks!
[1/3] drm/msm/dsi: Use existing per-interface slice count in DSC timing
https://gitlab.freedesktop.org/lumag/msm/-/commit/14ad809ceb66
[2/3] drm/msm/dsi: Set PHY usescase (and mode) before registering DSI host
https://gitlab.freedesktop.org/lumag/msm/-/commit/660c396c98c0
[3/3] drm/msm/dpu: Remove arbitrary limit of 1 interface in DSC topology
https://gitlab.freedesktop.org/lumag/msm/-/commit/d245ce568929
Best regards,
--
Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
