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From: Linus Walleij <linus.walleij@linaro.org>
To: "Heiko Stübner" <heiko@sntech.de>
Cc: Chris Morgan <macroalpha82@gmail.com>,
	linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org,
	dri-devel@lists.freedesktop.org, maccraft123mc@gmail.com,
	krzysztof.kozlowski+dt@linaro.org, robh+dt@kernel.org,
	daniel@ffwll.ch, airlied@gmail.com, sam@ravnborg.org,
	thierry.reding@gmail.com, Chris Morgan <macromorgan@hotmail.com>
Subject: Re: [PATCH V4 2/3] drm/panel: Add Samsung AMS495QA01 MIPI-DSI LCD panel
Date: Tue, 6 Dec 2022 14:58:41 +0100	[thread overview]
Message-ID: <CACRpkdZ1XX9Od4eUnQRYwcfLjs8Ct-reXNQvv1zaxmj85-4jdg@mail.gmail.com> (raw)
In-Reply-To: <7746700.MhkbZ0Pkbq@diego>

On Sat, Dec 3, 2022 at 11:18 AM Heiko Stübner <heiko@sntech.de> wrote:

> Though in past projects I've seen the same display-controller used with
> different panels (and different dsi-init-sequences). In one project the
> display manufacturer even EOL'ed the first panel and provided a replacement
> with said same display controller (and a different init) - but the
> datasheets for the display-controller were for the same chip still.
>
> So while in my experience the actual display name from the manufacturer
> identifies the display + controller combo, I don't really think you can
> go the other way with the controller name identifying the display+controller
> combination.

I don't mean we should do that.

What I mean is:

- Name the driver after the controller, if we know which one it is,
  such as panel-novatek-nt35510.c

- Provide identifications of the controller+panel combo in e.g.
  DT compatible strings, provide init data as arrays in the per-variant
  match data (or similar for ACPI).

Yours,
Linus Walleij

  reply	other threads:[~2022-12-06 13:58 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-29 17:29 [PATCH V4 0/3] drm/panel: Add Samsung AMS495QA01 Panel Chris Morgan
2022-11-29 17:29 ` [PATCH V4 1/3] dt-bindings: display: panel: Add Samsung AMS495QA01 Chris Morgan
2022-12-01 23:34   ` Rob Herring
2022-12-02 23:27   ` Linus Walleij
2022-11-29 17:29 ` [PATCH V4 2/3] drm/panel: Add Samsung AMS495QA01 MIPI-DSI LCD panel Chris Morgan
2022-12-03  9:03   ` Linus Walleij
2022-12-03 10:18     ` Heiko Stübner
2022-12-06 13:58       ` Linus Walleij [this message]
2022-12-03 19:01     ` Chris Morgan
2022-12-06 14:24       ` Linus Walleij
2022-11-29 17:29 ` [PATCH V4 3/3] arm64: dts: rockchip: add display to RG503 Chris Morgan

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