From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (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 4AE141FC110; Tue, 5 May 2026 22:03:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778018624; cv=none; b=dXs25J2FbjuYRLg/w5dwgIxYBcAUAzuJnvITFAjSGrRRA3TyCvCSS8s7E+H6z+XeePeM9QItAjZ1zI6v2hrEt+zdB1Gf4bCZ5ZTLHzfkyuXqLC0ygmCAaQOWLrOn7Y0TTtOqaryadNDU1obbuUxnlVSJHfTtXw6d543R2e8HNZU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778018624; c=relaxed/simple; bh=0enfH9MaghJe1NRHjDQd0G9Ook3g6sEavxPdH0LUlDA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Ran17f6WAoF4+JSJ2J6vtsSmr08oX3owW9lgVYyWG/0JpIzDMCIO1FNYRn0NuWl//nVTLxk3xD04Wwz0H1e6LLmjOYQGVvFXi5vcEkqnF1Lptav2cO5B8/atrEWr6c0I5Lb7a16TZJo/gN8f5dtizbyfkxJjMzTs+e6LoCnCRoA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=rUQ1kXUl; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="rUQ1kXUl" 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> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <380861ce-b832-4789-93fa-c2340ce487e6@mailbox.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