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Message-ID: <19d00fbb0a27f1ab5f8685ba45422702.mripard@kernel.org>
Date: Sun, 18 Jun 2023 14:41:03 +0000
From: "Maxime Ripard" <mripard@kernel.org>
To: "Miquel Raynal" <miquel.raynal@bootlin.com>
Subject: Re: [PATCH v2 6/6] drm/panel: sitronix-st7789v: Check display ID
In-Reply-To: <20230616163255.2804163-7-miquel.raynal@bootlin.com>
References: <20230616163255.2804163-7-miquel.raynal@bootlin.com>
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Cc: devicetree@vger.kernel.org, Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
 Sam Ravnborg <sam@ravnborg.org>, Sebastian Reichel <sre@kernel.org>,
 dri-devel@lists.freedesktop.org, Rob Herring <robh+dt@kernel.org>, Thierry
 Reding <thierry.reding@gmail.com>, Maxime Ripard <maxime@cerno.tech>, Krzysztof
 Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Michael
 Riesch <michael.riesch@wolfvision.net>
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Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org>

On Fri, 16 Jun 2023 18:32:55 +0200, Miquel Raynal wrote:
> A very basic debugging rule when a device is connected for the first
> time is to access a read-only register which contains known data in
> order to ensure the communication protocol is properly working. This
> driver lacked any read helper which is often a critical piece for
> speed-up bring-ups.
> 
> [ ... ]

Acked-by: Maxime Ripard <mripard@kernel.org>

Thanks!
Maxime