From patchwork Thu Jul 26 06:53:26 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oleksij Rempel X-Patchwork-Id: 10545277 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2D8659093 for ; Thu, 26 Jul 2018 06:54:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 16F9F2A93B for ; Thu, 26 Jul 2018 06:54:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 08C962A955; Thu, 26 Jul 2018 06:54:38 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 9BD552A93B for ; Thu, 26 Jul 2018 06:54:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=gnKZjiw3tUC7gmptwJvLROCQdyGZzqo9JNKbuvW7qXk=; b=XnAv3vyZ+vjh8/w/va0K6MS3JJ BeSmUMr0SeaFZBjxwCaJXg8+pKUG6OGwbUPiEHLqQdUHGmfOaGp1nPFAiLzmLZHvKF6NBwlU52vnS O0IUTitfENE00csVxm/zx+cd+pZR8K7N2d+6TSPCj8vSAOEZiToEjyuduOQr6qNlDv2XsxOjqF+1z P52nsyVTZc3GnuHgAuRXSFW+0oFgB3mYkizDpavxBpvX2k4QmI9N1ST0nkzY8jzMM5a2mNPQqr7CF ekJzzJW6iV7Yjz3zo7EkC7yFmJwSAbTwYaYC9bh4dKNfBbJwOfuXP7Zr8jZjJ7Nfkm/P9kN6ti/2W Ql5xrLZA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fiaAT-0005as-4h; Thu, 26 Jul 2018 06:54:33 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fia9o-0004yC-K4 for linux-arm-kernel@lists.infradead.org; Thu, 26 Jul 2018 06:53:55 +0000 Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1fia9W-0002FE-Fg; Thu, 26 Jul 2018 08:53:34 +0200 Received: from ore by dude.hi.pengutronix.de with local (Exim 4.91) (envelope-from ) id 1fia9V-0001da-5L; Thu, 26 Jul 2018 08:53:33 +0200 From: Oleksij Rempel To: Shawn Guo , Fabio Estevam , Rob Herring , Mark Rutland , "A.s. Dong" , Vladimir Zapolskiy , Jassi Brar Subject: [PATCH v7 1/6] dt-bindings: mailbox: allow mbox-cells to be equal to 0 Date: Thu, 26 Jul 2018 08:53:26 +0200 Message-Id: <20180726065331.6186-2-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180726065331.6186-1-o.rempel@pengutronix.de> References: <20180726065331.6186-1-o.rempel@pengutronix.de> X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180725_235352_976849_33AFA393 X-CRM114-Status: GOOD ( 12.77 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dl-linux-imx , kernel@pengutronix.de, Sudeep Holla , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Dong Aisheng Mailbox devices may have only one channel which means the mbox-cells at least 1 does not make sense for this type devices. Let's remove that limitation to allow the mbox-cells to be equal to 0. Cc: Mark Rutland Cc: Sudeep Holla Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Rob Herring Signed-off-by: Dong Aisheng --- Documentation/devicetree/bindings/mailbox/mailbox.txt | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/mailbox/mailbox.txt b/Documentation/devicetree/bindings/mailbox/mailbox.txt index af8ecee2ac68..c2fcd054141a 100644 --- a/Documentation/devicetree/bindings/mailbox/mailbox.txt +++ b/Documentation/devicetree/bindings/mailbox/mailbox.txt @@ -6,8 +6,7 @@ assign appropriate mailbox channel to client drivers. * Mailbox Controller Required property: -- #mbox-cells: Must be at least 1. Number of cells in a mailbox - specifier. +- #mbox-cells: Number of cells in a mailbox specifier. Example: mailbox: mailbox {