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 77757EB64DA for ; Thu, 20 Jul 2023 06:35:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:From:References:CC:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=qxKgNoeLdHDGn3e3W6lTlM1wmAdl/2lW006LL4Zry9c=; b=us4ZC9rL7zQ9lj 88K/5Ljx7x/yK6TA03OD5kQxL9cwm5Jp6yhvDyjCiXxWieAl8+LovkzcUZFP7iAmz5okullOLVlow Iqia3kU6ZFK2ttbf5HhzT9unX/sw0+UhMVbGJ+5jrMCpg+jvFwAsfzoIuT60qAPNn7ybbQJzY/Kw6 0h9iljyQot24Ch3riiASgSG/tCHcFe141C430idd6mp7OcbHUTsAv6d9bb2tU6Vjs7/yeTy7DNvV3 utUBjuuO1NF7tvdeUUgYPb+M0/oK2Zl8xEkH2jrvA/z+zdqopTgW63dpTpUPy4zfw1XHWoQcd7HL9 GV5spVCiztrl7yI2cx6A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qMNFf-009x8W-1a; Thu, 20 Jul 2023 06:35:03 +0000 Received: from ex01.ufhost.com ([61.152.239.75]) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qMNFb-009x3e-2b for linux-riscv@lists.infradead.org; Thu, 20 Jul 2023 06:35:02 +0000 Received: from EXMBX166.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX166", Issuer "EXMBX166" (not verified)) by ex01.ufhost.com (Postfix) with ESMTP id 3252324E36A; Thu, 20 Jul 2023 14:34:04 +0800 (CST) Received: from EXMBX068.cuchost.com (172.16.6.68) by EXMBX166.cuchost.com (172.16.6.76) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Thu, 20 Jul 2023 14:34:04 +0800 Received: from [192.168.125.113] (113.72.147.86) by EXMBX068.cuchost.com (172.16.6.68) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Thu, 20 Jul 2023 14:34:03 +0800 Message-ID: Date: Thu, 20 Jul 2023 14:34:03 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0 Subject: Re: [PATCH 1/1] riscv: dts: Enable device-tree overlay support for starfive devices Content-Language: en-US To: Conor Dooley , Emil Renner Berthing CC: Felix Moessbauer , Emil Renner Berthing , Rob Herring , Daniel Bovensiepen , Jan Kiszka , , References: <20230627080620.329873-1-felix.moessbauer@siemens.com> <20230710-villain-dainty-d1a90ce57a27@spud> <20230712-single-crestless-93bf57c09773@spud> From: Walker Chen In-Reply-To: <20230712-single-crestless-93bf57c09773@spud> X-Originating-IP: [113.72.147.86] X-ClientProxiedBy: EXCAS062.cuchost.com (172.16.6.22) To EXMBX068.cuchost.com (172.16.6.68) X-YovoleRuleAgent: yovoleflag X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230719_233500_016224_AB823E08 X-CRM114-Status: GOOD ( 23.41 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On 2023/7/13 0:23, Conor Dooley wrote: > On Wed, Jul 12, 2023 at 06:17:19PM +0200, Emil Renner Berthing wrote: >> On Mon, 10 Jul 2023 at 20:29, Conor Dooley wrote: >> > >> > >> > Emil, Walker, >> > >> > On Tue, Jun 27, 2023 at 04:06:20PM +0800, Felix Moessbauer wrote: >> > > Add the '-@' DTC option for the starfive devices. This option >> > > populates the '__symbols__' node that contains all the necessary symbols >> > > for supporting device-tree overlays (for instance from the firmware or >> > > the bootloader) on these devices. >> > > >> > > The starfive devices allow various modules to be connected and this >> > > enables users to create out-of-tree device-tree overlays for these modules. >> > > >> > > Please note that this change does increase the size of the resulting DTB >> > > by ~20%. For example, with v6.4 increase in size is as follows: >> > >> > Whatcha think? >> >> I'm fine with it. I just wonder why it's only the Nvidia Tegra boards >> and the VisionFive's that need this. Surely other boards have pins for >> expansion cards. > > It's totally not just these two - there's been a flurry of similar > patches recently. The RPi stuff got it - I think I Acked that one from > the DT side while Rob and Krzysztof were out of office, partially on the > basis that the Nvidia stuff had it (and IIRC Renesas). > Since then there's been a couple other ones that got the same treatment, > including 32-bit ARM Microchip stuff. I've been avoiding doing it for the > RISC-V Microchip to see if Rob decides that what I Acked was a problem. > > It seems generally helpful, so I've been a little suspicious as to why > it was not done already... I agree to use DT overlay though this will increase a little bit size for DTB. For users who want to use expansion card like audio daughter board, it provides a convenient way. Best regards, Walker _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv