From: Rob Herring <robh@kernel.org>
To: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
Wolfram Sang <wsa+renesas@sang-engineering.com>,
Bastian Hecht <hechtb@googlemail.com>,
linux-mtd@lists.infradead.org, devicetree@vger.kernel.org,
linux-renesas-soc@vger.kernel.org
Subject: Re: [PATCH/RFC] dt-bindings: mtd: Remove Renesas FLCTL NAND controller support
Date: Mon, 16 May 2022 19:51:13 -0500 [thread overview]
Message-ID: <20220517005113.GA3685447-robh@kernel.org> (raw)
In-Reply-To: <ef70e24a57d2342458fe11b7b13775ffac1f1bd0.1652098726.git.geert+renesas@glider.be>
On Mon, May 09, 2022 at 02:27:52PM +0200, Geert Uytterhoeven wrote:
> The DT bindings for the Renesas FLCTL NAND controller document only support a
> single SoC, namely the Renesas R-Mobile AP4 (SH7372).
> Linux dropped support for this SoC in commit 59b89af1d5551c12 ("ARM:
> shmobile: sh7372: Remove Legacy C SoC code") in v4.1.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> ---
> The FLCTL NAND controller (or an enhanced version) is also present on
> SH-Mobile AG5 (sh73a0) and R-Mobile A1 (r8a7740), but the sole boards
> supported upstream (KMC KZM-A9-GT resp. Atmark Techno Armadillo-800-EVA)
> use eMMC NAND instead of raw NAND FLASH.
>
> What's the policy w.r.t. stale DT bindings?
> Should it be converted to json-schema instead?
Wouldn't be high on my list.
> drivers/mtd/nand/raw/sh_flctl.c still implements these bindings.
> The driver cannot be removed, as it is also used on the non-DT
> SH7723-based AP-325RXA platform.
But you could remove the DT support in the driver? I'd just leave this
as-is if you don't do that.
Rob
prev parent reply other threads:[~2022-05-17 0:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-09 12:27 [PATCH/RFC] dt-bindings: mtd: Remove Renesas FLCTL NAND controller support Geert Uytterhoeven
2022-05-17 0:51 ` Rob Herring [this message]
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