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 75167C5475B for ; Fri, 1 Mar 2024 08:32:22 +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:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=XYDC9hEWVXHt1xFLAofwvwMRtWT79wfzoWN2DPEhTCg=; b=YPPLlzY1v4s806 rfagEQNF4y1LW9ZIJnbIj+qYfx/Y6l5S6hXu7L2d21r1Kgn+kiVGCD+m9wKGs1Xq861fr3ZGChmBg ENJw6VwgZOk4uaf/NU1QHZbU7jibyOQPh3oRlbQd0UuE08B9oaiRHtMgTiVnw8+K2yXsdsjGk0y0H tzaFbJskVDvoe5a/e4j7r6RibeANKykPinuebgkUBBksa3jZ7EPw3JHUsJyuBK7rhrQQWlx1CV/B7 F39k7FR8P6KPJ62WaOobgm5cH+j+sKAdSBqc3Eu2l1ACSo98DuQ9hxdKpJyLQy3CqJUoJEkTJ0fuq qwalfzKboioyDkVpuyLw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rfyJK-0000000Gv3L-35zr; Fri, 01 Mar 2024 08:32:06 +0000 Received: from mx1.tq-group.com ([93.104.207.81]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rfyJI-0000000Gv2b-1ClW for linux-arm-kernel@lists.infradead.org; Fri, 01 Mar 2024 08:32:06 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tq-group.com; i=@tq-group.com; q=dns/txt; s=key1; t=1709281924; x=1740817924; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=tXo+3yPFTwnKSAxxXrAIP7alPGiEQwOwRgLL411etiA=; b=Wsxuwfw2ksb+1n3DAAhvzM956aiv69IPjsl0qOlqZtidveofYJ+/YsUx TXaKapBIzfRLlW8ibkjoHvpYuVKx2j2NTS6sO7ZiIRGNaobRwCmfu+Z6Q RfJLXfJv9DNcHsw/sepwAKd/FFjI2Xlwg2XrUcIlCo8MTicUUiiCacn7E G924x+b+UeBDAVbNo4QSfJY3gCMU/MgKMeLiDo9bsU+Ds6mCjGQC3iPBl BX4gOo7SvNR9PiPDn4eRM3TI9bZcQtD/DxRDDvns2NXlcB0hShoLqy9pw wBMv6CAz9AOXsRfm5EjepLN//LbZWF0fNUerO1rRTjHu1E0Gj0WZCG7jv A==; X-IronPort-AV: E=Sophos;i="6.06,195,1705359600"; d="scan'208";a="35680235" Received: from vtuxmail01.tq-net.de ([10.115.0.20]) by mx1.tq-group.com with ESMTP; 01 Mar 2024 09:32:00 +0100 Received: from steina-w.localnet (steina-w.tq-net.de [10.123.53.25]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by vtuxmail01.tq-net.de (Postfix) with ESMTPSA id 6E141280071; Fri, 1 Mar 2024 09:32:00 +0100 (CET) From: Alexander Stein To: Laurent Pinchart , Krzysztof Kozlowski Cc: Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH 2/3] media: dt-bindings: nxp, imx8-isi: Allow single port for single pipeline models Date: Fri, 01 Mar 2024 09:32:00 +0100 Message-ID: <6655016.GXAFRqVoOG@steina-w> Organization: TQ-Systems GmbH In-Reply-To: <3f82eadb-a475-4ea0-8de3-0bfe0a46a27b@linaro.org> References: <20240223140445.1885083-1-alexander.stein@ew.tq-group.com> <3f82eadb-a475-4ea0-8de3-0bfe0a46a27b@linaro.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240301_003204_727058_7E211376 X-CRM114-Status: GOOD ( 24.72 ) 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: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Krzysztof, Am Donnerstag, 29. Februar 2024, 19:18:14 CET schrieb Krzysztof Kozlowski: > On 29/02/2024 19:14, Krzysztof Kozlowski wrote: > > On 23/02/2024 15:17, Laurent Pinchart wrote: > >> On Fri, Feb 23, 2024 at 04:16:31PM +0200, Laurent Pinchart wrote: > >>> Hi Alexander, > >>> > >>> Thank you for the patch. > >>> > >>> On Fri, Feb 23, 2024 at 03:04:44PM +0100, Alexander Stein wrote: > >>>> In case the hardware only supports just one pipeline, allow using a > >>>> single port node as well. > >>> > >>> This is frowned upon in DT bindings, as it makes them more complicated > >>> for little gain. The recommendation is to always use a ports node if a > >>> device can have multiple ports for at least one of its compatibles. > >> > >> And reading the cover letter, I see this causes warnings. I think we > >> need guidance from Rob on this. > > = > > Here was similar case: > > https://lore.kernel.org/all/20240227142440.GA3863852-robh@kernel.org/ > > and @Rob recommendation was to just use ports. > > = > > It's true it causes warnings... or I should say - it was causing > > warnings (one of my last warnings in Samsung DTS for W=3D1). > > = > > I wonder what's the base of this patchset? > > = > > https://lore.kernel.org/linux-samsung-soc/20231122-dtc-warnings-v2-1-bd= 4087325392@kernel.org/ > = > Uh, wait, this was not merged, so the warning still appears. Anyway the > preference is simpler schema, so just "ports". Okay, thanks for that information. I'll drop this patch then. Just to be on the same side, this implies that using a single port in this case ( see patch 3) is not necessary/wanted, no? If so, I'll drop patch 3 as well. Best regards, Alexander -- = TQ-Systems GmbH | M=FChlstra=DFe 2, Gut Delling | 82229 Seefeld, Germany Amtsgericht M=FCnchen, HRB 105018 Gesch=E4ftsf=FChrer: Detlef Schneider, R=FCdiger Stahl, Stefan Schneider http://www.tq-group.com/ _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel