linux-kernel - Re: [PATCH 0/4] Fixing live video input in ZynqMP DPSUB

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Date: Mon, 15 Jan 2024 09:28:39 +0100
From: Maxime Ripard <mripard@...nel.org>
To: Anatoliy Klymenko <anatoliy.klymenko@....com>
Cc: laurent.pinchart@...asonboard.com, maarten.lankhorst@...ux.intel.com, 
	tzimmermann@...e.de, airlied@...il.com, daniel@...ll.ch, michal.simek@....com, 
	dri-devel@...ts.freedesktop.org, linux-arm-kernel@...ts.infradead.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/4] Fixing live video input in ZynqMP DPSUB

On Fri, Jan 12, 2024 at 03:42:18PM -0800, Anatoliy Klymenko wrote:
> Patches 1/4,2/4,3/4 are minor fixes.
> 
> DPSUB requires input live video format to be configured.
> Patch 4/4: The DP Subsystem requires the input live video format to be
> configured. In this patch we are assuming that the CRTC's bus format is fixed
> and comes from the device tree. This is a proposed solution, as there are no api
> to query CRTC output bus format.
> 
> Is this a good approach to go with?

I guess you would need to expand a bit on what "live video input" is? Is
it some kind of mechanism to bypass memory and take your pixels straight
from a FIFO from another device, or something else?

Maxime

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