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[66.90.144.107]) by smtp.gmail.com with ESMTPSA id f27-20020a056830309b00b0060603221268sm124759ots.56.2022.05.16.17.51.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 May 2022 17:51:14 -0700 (PDT) Received: (nullmailer pid 3690141 invoked by uid 1000); Tue, 17 May 2022 00:51:13 -0000 Date: Mon, 16 May 2022 19:51:13 -0500 From: Rob Herring To: Geert Uytterhoeven Cc: Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Krzysztof Kozlowski , Yoshihiro Shimoda , Wolfram Sang , Bastian Hecht , 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 Message-ID: <20220517005113.GA3685447-robh@kernel.org> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220516_175116_407883_BB7B8A2E X-CRM114-Status: GOOD ( 14.52 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org 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 > --- > 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 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/