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From: Nam Cao <namcaov@gmail.com>
To: ChanSoo Shin <csshin9928@gmail.com>, andy@kernel.org
Cc: gregkh@linuxfoundation.org, dri-devel@lists.freedesktop.org,
 linux-fbdev@vger.kernel.org, linux-staging@lists.linux.dev, ChanSoo Shin
 <csshin9928@gmail.com>
Subject: Re: [PATCH v5] fbtft: limit dirty rows based on damage range
In-Reply-To: <20260128203938.962414-1-csshin9928@gmail.com>
References: <20260128203938.962414-1-csshin9928@gmail.com>
Date: Fri, 06 Feb 2026 01:04:45 +0100
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Hi ChanSoo,

ChanSoo Shin <csshin9928@gmail.com> writes:
> Instead of marking the entire display as dirty, calculate the start
> and end rows based on the damage offset and length and only mark the
> affected rows dirty. This reduces unnecessary full framebuffer updates
> for partial writes.
>
> Signed-off-by: ChanSoo Shin <csshin9928@gmail.com>

This looks useful and I prefer to see it applied. I understand lack of
testing is the main obstacle. Are you still trying to get it merged? If
not, I can take over.

Nam