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 A0EA1FF8855 for ; Tue, 5 May 2026 22:03:53 +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=1HjrNNRANMdLlzh+gAKdbS0WO0yfAm9evb01zyPjEu8=; b=QTCnt2wlgT/7+FnKonB1EDzPWX IE1F78+0L7ETWkInFgi7McsgbZl2mz0aOOImIVCai2TRNHYTAdYTfBtXVrZwFDCThbTfLNYNDgwtO qWSdF7ItK6WkUVuePr1hyDXfCtXT0XhRJv0aHwJsmOnxjR0+sFxKAXrS5lFP0A+CN2CMPjcg/+vnw sdHTesTg3g6japQpg6Rd6Md+nDwXp1dUU0PgxdEt4luuOj9MlBgC+BAS6asJpfE261Tjn8pMWesv4 tstNCEzQHHd3DtABVUDoE4iTEQqXD2gvq/CI2007JaOnI5a/MSNqayizkpmcIKvHbTc78lx1KPznf Afk8cPHg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wKNrp-000000000si-3d60; Tue, 05 May 2026 22:03:49 +0000 Received: from perceval.ideasonboard.com ([213.167.242.64]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1wKNrn-000000000qq-1IEZ for linux-arm-kernel@lists.infradead.org; Tue, 05 May 2026 22:03:48 +0000 Received: from killaraus.ideasonboard.com (2001-14ba-703d-e500--2a1.rev.dnainternet.fi [IPv6:2001:14ba:703d:e500::2a1]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id D80385B2; Wed, 6 May 2026 00:03:37 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1778018618; bh=0enfH9MaghJe1NRHjDQd0G9Ook3g6sEavxPdH0LUlDA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=rUQ1kXUldVcE6uezjEG75AW4gGCp9QMg705KpcXAawY7Q2VbKt7YVux3MVo/vtUyM 2cyfTOw6c/polEXZeReO0AFi6IWJJvlsVsb9D8aW12ZnwOzlh+ohYspHUBTuAVaB+1 wKIioKgySEZupTiNthDpjOly7KtzZlUOReVteOGk= Date: Wed, 6 May 2026 01:03:39 +0300 From: Laurent Pinchart To: Marek Vasut Cc: linux-arm-kernel@lists.infradead.org, Nguyen Tran , Conor Dooley , David Airlie , Geert Uytterhoeven , Kieran Bingham , Krzysztof Kozlowski , Kuninori Morimoto , Magnus Damm , Maxime Ripard , Michael Turquette , Rob Herring , Simona Vetter , Stephen Boyd , Thomas Zimmermann , Tomi Valkeinen , devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org Subject: Re: [PATCH 6/7] arm64: dts: renesas: r8a779md: Add Renesas R-Car R8A779MD M3Le DTs Message-ID: <20260505220339.GI1547435@killaraus.ideasonboard.com> References: <20260419193718.133174-1-marek.vasut+renesas@mailbox.org> <20260419193718.133174-7-marek.vasut+renesas@mailbox.org> <20260429221153.GD132396@killaraus.ideasonboard.com> <380861ce-b832-4789-93fa-c2340ce487e6@mailbox.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <380861ce-b832-4789-93fa-c2340ce487e6@mailbox.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260505_150347_490008_0F6B0433 X-CRM114-Status: GOOD ( 22.05 ) 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 Sun, May 03, 2026 at 01:39:27AM +0200, Marek Vasut wrote: > On 4/30/26 12:11 AM, Laurent Pinchart wrote: > > Hello Laurent, > > >> +/delete-node/ &vin4csi20; > >> +/delete-node/ &vin5csi20; > >> +/delete-node/ &vin6csi20; > >> +/delete-node/ &vin7csi20; > >> +/delete-node/ &xhci0; > >> + > >> +&du { > >> + compatible = "renesas,du-r8a779md"; > >> + renesas,cmms = <&cmm0>, <&cmm3>; > > > > Shouldn't you then also delete the cmm1 node ? > > Please see my reply to [PATCH 1/7] dt-bindings: display: renesas,du: > Document Renesas R-Car R8A779MD M3Le , the CMM0,1,3 all seems to be on > the chip and accessible. I think the CMM driver should be aware of the > IP, even if it is unused, e.g. to bring it into low power state if needed. > > > And does the DU still need three clocks and three interrupts ? > The Geist board schematic indicates that DU_DOTCLKIN1 is present on the > SoC package and is supplied by Xtal X22 on the board, so I think the > answer is "yes" for the first clock part of your question. > > As for the interrupt part, it seems DU1 is present, but not connected. > That means the DU1 interrupt does exist, but is not going to be used. Do > you prefer to describe it or leave it out ? Following our discussions on IRC, I understand there are quite a few unknows at this point, and more testing is required in order to upstream display support. I think your next version will drop support for the DU, I'm fine with that as a first step. We can then build on top. -- Regards, Laurent Pinchart