From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.zeus03.de (zeus03.de [194.117.254.33]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 87736246BC6 for ; Mon, 16 Mar 2026 14:16:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=194.117.254.33 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773670574; cv=none; b=F0vJrmrDl1zbrqfAG9LfI1a4JZrPixMKvTBEn/DMy+55rn2AT4DhZvZzTT4YcNAMFAp6TpyZ08llKk0o2brSKIaAkATMX5kjewpNnEjMKdWrq8ZJGpywmryPjhNsDJWE788AFNnEkJslElx5pbJsHKsdTMdry51mxJtzzheBTL4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773670574; c=relaxed/simple; bh=xz54yh8e5ZXFjtA80IQEqsS2sUmbO0s7XFNZ+LhA/lc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=IkwII5I8IrJ5PSvLT8ZnJJFNehKTNJZz7gqMNcpUpy6Hy8I+Q8r4tceRh9B3hDWzo7lkglAJjQPBwQyWuqnhHilS2hbkZW1JuaOSBP5GLnj/ioLZIbBKVzvI5ow4ufq4/UqY9PwRvW0LHJGyuQUjIw+euTEu2kj03VhDndriXp0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com; spf=pass smtp.mailfrom=sang-engineering.com; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b=N3J+t9pW; arc=none smtp.client-ip=194.117.254.33 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b="N3J+t9pW" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= sang-engineering.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to; s=k1; bh=xz54 yh8e5ZXFjtA80IQEqsS2sUmbO0s7XFNZ+LhA/lc=; b=N3J+t9pWl/ufACVZH7Tk nQ2hNmGExlouCSXppZqk73GoDbf6yU4ziz8FYmYvdMuWqs/u5YejDCnBNk20lGKA 0awIwEf2TIakVpIKKF/fEAV3YsRh59kLnY8ZpkXlYsX6smUtDM+wXpOuKRbwNWSt YydImOtX65Ez0y3gZOhJ+tnrbXV9kNGYwN3acq1+rAsVeQI4scl5MI0l4iC9IIl1 8scknvsKwMf5hjMKBNTyNat/W+oeaFDcbyG6O9FMCpSq7wz2o6P1jgeb5rV4vTjo UravNCul/Lais6tvbGfn6Zt+RYRlh/zBNgc1heGXbDIy8J2YfXLL/h8xsPEO2gf7 sg== Received: (qmail 1454276 invoked from network); 16 Mar 2026 15:16:07 +0100 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 16 Mar 2026 15:16:07 +0100 X-UD-Smtp-Session: l3s3148p1@+WMc3CRNyKo+XdJ7 Date: Mon, 16 Mar 2026 15:16:06 +0100 From: Wolfram Sang To: Prabhakar Cc: Krzysztof Kozlowski , Rob Herring , Conor Dooley , Geert Uytterhoeven , Magnus Damm , Biju Das , linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Fabrizio Castro , Lad Prabhakar Subject: Re: [PATCH 3/3] memory: renesas-rpc-if: Add support for RZ/T2H SoC Message-ID: References: <20260310212927.3372410-1-prabhakar.mahadev-lad.rj@bp.renesas.com> <20260310212927.3372410-4-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="2r2LijptYH3WlCkC" Content-Disposition: inline In-Reply-To: <20260310212927.3372410-4-prabhakar.mahadev-lad.rj@bp.renesas.com> --2r2LijptYH3WlCkC Content-Type: text/plain; charset=us-ascii Content-Disposition: inline > Add a new compatible string "renesas,r9a09g077-xspi" for RZ/T2H while > reusing the existing xspi_info_r9a09g047 OF data. This allows the driver > to bind correctly on RZ/T2H while the register differences can be handled > in future updates as the affected configuration registers are not currently > accessed by the driver. This sounds fragile to me. Can you add a comment somewhere in the driver or headers so people wanting to use these registers will find out that the SoCs are not compatible anymore? --2r2LijptYH3WlCkC Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmm4EKUACgkQFA3kzBSg KbbBthAAqrnpHDnTauVMgI/1C7fKeA0mjdKdNAgnhxPvDKIBMbY9+2bpe9I8esJ6 n7zoMtY4MlwX9xkcC86uLfitXRS1931K7AqHqkyEpGTm3lMjS4n+0tWbER7a4aLL WbEC59uq1pPbxxfbQStWT7pZmwv+2uVtMmDMP2wnh8O2FtPp2lIqBFCGuCgkfpkt 8FDYk0VcEdTQFAAC966/o0oRtJYQWXpjbFpmWwgo4Vm5XoxkGVtiqV5W7LuBijGW /qXV25Hr71unoA/t1csORi29LFRTgQspzBcXrAhAwm9odsaEUNlVlZwEHn9PwNSl lCQjSgx+Ky1oZhhQTw5cNztb1jgqtsyWpwHc+Q6DCHB0x+js6msSBWsLD4n1X27L 3Jz02Sx3AslBQd7C8mn58xTib0WmCT/TzVwELrWBg9PnOwqwYYC5HbO/XwGZKeg2 THOaV0Q9PTl7CD4zTZN+XzyM8UIJ8YRMaRsGPGQ/HI6LLx45VrmY4LFm4j0b4/Bx LixoHSrikJcoZDpOLd6o/fpOunE+KEire6LKYgJSa40jslmAHrGROjg688KUdV/y dPSXCak8TK3eeRGuyAe49povjf9tbPtUEGm1pSBqDqD1Ny7dU+mxmAwFkycUoWxs 5s4S6XUhidR9jjkr3KKkgLcf1DcaiwPQmj7Bd9f2pXrOYwvdrCA= =maxZ -----END PGP SIGNATURE----- --2r2LijptYH3WlCkC--