From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 77D73D116F5 for ; Mon, 1 Dec 2025 14:31:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=P3Udye7A+1mJEIOEFZOxhVuAe/sJ9GEaxJR6U/sqIe4=; b=xStXJzNkE9DfsxnuRfw0fYg+1B 3nOZOGYIS/Gtmzd4kQKU1PXTdDjXmSGxCx4FTw5xaw7plm8s7RZXvRCOydsc9hB1FErlRsb3elx82 Pnw7FU3usoTVFbHv8gqBrZhsrUSgkD80mGoEhNURTCHLE4EYFyB8g9FfvJW8eK+dPQ8t7zk+hd0gc W2NHJErIshMq5uJ5SZYGA8tm/w1X6346K998v5M9nIW2fkCUh/nmJ1LkAbSlG42g5WlIov6CjzzD9 t8sEQj0aJrkyFTLqgNNU6djlKPsWdTfkAyXzWDvZXl4+xxmBti5R/ZTgc6TiO96ez+eh8tg0B7MId g7HiaUEw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vQ4wP-000000045P4-1PTE; Mon, 01 Dec 2025 14:31:49 +0000 Received: from mail-wm1-x32a.google.com ([2a00:1450:4864:20::32a]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vQ4wM-000000045Oh-1fCL for linux-arm-kernel@lists.infradead.org; Mon, 01 Dec 2025 14:31:47 +0000 Received: by mail-wm1-x32a.google.com with SMTP id 5b1f17b1804b1-4779cb0a33fso44183975e9.0 for ; Mon, 01 Dec 2025 06:31:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1764599504; x=1765204304; darn=lists.infradead.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=P3Udye7A+1mJEIOEFZOxhVuAe/sJ9GEaxJR6U/sqIe4=; b=CcRY/zdW5yeRB3A/8fYQ+ysL5Oxygn6DPQ1fSuMNqitsMP/KM1xFoEA9zJWknY8Hom zQpqV6R63A+DKTBmwck0adzLgBG2kyZcjxttpg4uoVS4lMXPaIb390a2l4ka7e4iCBm1 SplLd9I6pgUt9zu8A/1H7ztfejXyPtFWHmRSg6WsPE3dmzxIk3HpUqWAE+CGG6ISBEge WEuwzUXuU0kTjnnNqQHRZyqow2IBFfiF/iVaZ2dCXuZei7PaaHLp9/tHkGykChmzCwqc wnICoTx7xW+goJRehafMeFcmdLLbuaPQ2QSZ551YAqyOQh0x719sFSrqjZlmj9k6dSTX jfKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1764599504; x=1765204304; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=P3Udye7A+1mJEIOEFZOxhVuAe/sJ9GEaxJR6U/sqIe4=; b=PFRZrQaNQXHnQ4mirdHeq/hP/eMJo6HHLpctI+CkCo5785mZPe0tkPqVMVr6/gqszS CedAyq/cWswnJmbEhPOHCF2RcJ4iu1dIDmnVfMZ9WrMLlP6w9CKckY03K4W78uJMVJbi FGU4Yowi4zmSRODqYN3GaHZcfG6KNBvWMRhAyKi5sc5TTcdBv9Xv5xC/19AgVbXUAbpb Pfeyo0wzDgOWJSqlpWl9wzdPU2PGDZfHntt5x4tamXv6ZCGb5ZqMMzjnD8SIJ7eBboOH NXm3grdOGK5w+7T1T+QJFKcKGj9aoN6eQCZFlLM/jGaa9OmT/ybP51iJ4R8f7fUe14Mq tOUQ== X-Forwarded-Encrypted: i=1; AJvYcCVXkaYsBXEYwzUtHWGppyc169k1uhyfaFUJdOJyEviIWcF2SKBhqLcrhB5lvGiGZSB4jgLigTSPHm+1tzlNa78N@lists.infradead.org X-Gm-Message-State: AOJu0YwKZ2AfvrG/mprDq8x/3z5F0deQMPwJ6uRNrRErMStKcDwsJpqy C4IyiR1ZnwGqYU2sj2+MF+3p6i07GhMKrFyaoU/UeuXYzGWU/F7HAKvCZ4vxxTNAOj8= X-Gm-Gg: ASbGncuu29+3SpM76E/W4Y3cvD/vJTWEEUL+/vpMeV8nN/BC1yq9IIe/8ewOSWW0k9U lkror3oRRhf9+ABj2RRBH1n4Rpb4jCgziF2Clc4HJjsrZg99z1gv/+8i7kD2ehP5i0rl8u3r1WQ iqmZXGEtmQgSm6MhmExXKYs19wWpLh7ST5TrqdQsm/GL5JPOkezJYUB66sQxUChSHAVP51nRxBS t+hvsKPu4KGyyQveqUjEBcon7KGPzi6Ea9NZMKWwQPxtoGzgHjEZxZqD2qprY2BBKmFxcdoAAtV IJ5Cf5Pe/mrihzA6ZjOvar4OJ2CdiaKvFH8aDkVh9P8r9u+bZJYsICb1RH/u3fZ0TRxvA4f9Qeo uqwHXKuVaFxIJItSgzt120VmroDwptiaIPR1gUMJuHW7L/PFk5ripoXSytJWbnbzZ58tmKk4OAe pOdRD6bshQxHMOxmm5 X-Google-Smtp-Source: AGHT+IH6A6FJXGfT8Zsjwa2/f7hPiOGak401pIC2WoSIqlHjuQJJxsh60eESxFQX7d8Tr6L3Wxf8Ig== X-Received: by 2002:a05:600c:1f8f:b0:46e:1fb7:a1b3 with SMTP id 5b1f17b1804b1-477c01ee3camr380965655e9.23.1764599504416; Mon, 01 Dec 2025 06:31:44 -0800 (PST) Received: from localhost ([196.207.164.177]) by smtp.gmail.com with UTF8SMTPSA id 5b1f17b1804b1-479052cf8d9sm154964375e9.9.2025.12.01.06.31.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Dec 2025 06:31:43 -0800 (PST) Date: Mon, 1 Dec 2025 17:31:38 +0300 From: Dan Carpenter To: Chester Lin Cc: Alexandre Torgue , Andrew Lunn , Conor Dooley , "David S. Miller" , devicetree@vger.kernel.org, Eric Dumazet , Fabio Estevam , Ghennadi Procopciuc , imx@lists.linux.dev, Jakub Kicinski , Jan Petrous , Krzysztof Kozlowski , Lee Jones , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, Matthias Brugger , Maxime Coquelin , netdev@vger.kernel.org, NXP S32 Linux Team , Paolo Abeni , Pengutronix Kernel Team , Rob Herring , Sascha Hauer , Shawn Guo , linaro-s32@linaro.org Subject: Re: [PATCH 0/4] s32g: Use a syscon for GPR Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251201_063146_487550_FA47E78B X-CRM114-Status: GOOD ( 13.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Dec 01, 2025 at 04:08:14PM +0300, Dan Carpenter wrote: > *** BLURB HERE *** > Sorry, I obviously meant to write a message here. The s32g devices have a GPR register region which could be accessed via a syscon. Currently only the stmmac/dwmac-s32.c uses anything from there and we just add a line to the device tree to access that GMAC_0_CTRL_STS register: reg = <0x4033c000 0x2000>, /* gmac IP */ <0x4007c004 0x4>; /* GMAC_0_CTRL_STS */ But it would be better to have a syscon instead of adding each register to the device tree like this. We still have to maintain backwards compatibility to this format, of course. regards, dan carpenter