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From: Nam Cao <namcao@linutronix.de>
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To: Omer PALA <palaomer100@gmail.com>, andy@kernel.org,
 gregkh@linuxfoundation.org
Cc: dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org,
 linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] staging: fbtft: fb_upd161704: replace udelay with
 usleep_range
In-Reply-To: <20260916093928.52057-1-palaomer100@gmail.com>
References: <20260916093928.52057-1-palaomer100@gmail.com>
Date: Wed, 16 Sep 2026 11:53:55 +0200
Message-ID: <87ecet5xos.fsf@yellow.woof>
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Omer PALA <palaomer100@gmail.com> writes:
> Replace udelay() calls with usleep_range()
> to avoid busy-waiting and allow the
> scheduler to sleep during delays.
>
> Signed-off-by: Omer PALA <palaomer100@gmail.com>

This change cannot be accepted unless it has been validated with
hardware.

Btw, I am curious why we have these udelay(). Can we remove them?

Nam