From patchwork Mon Apr 15 12:07:46 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 10900625 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 1F7151390 for ; Mon, 15 Apr 2019 12:08:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0190428740 for ; Mon, 15 Apr 2019 12:08:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E98E3287DA; Mon, 15 Apr 2019 12:08:18 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED 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 C56F828740 for ; Mon, 15 Apr 2019 12:08:17 +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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version: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=pPbj9lzYfPSvVdW0P7NU7OJT9AZ8Ca/n8fRdjQ/l/js=; b=IQEFEzazjvSolc J0nnFDezkOxMRfCtiBBsl5BVE6pB4wi1bRHBW+Xwg0oBPtddSYaZEXBpcA1GklzAEIl0jlnQGCSNI dwPmkLXNgwfLLuiEoS5wRsOq8X1pGD7MqwopWrrKKxftCg0JPdyckT9/eF9MImfAln/P+KK+Ko7QK DDL26UZOYG9pJIqkLF3cJ4mD7GJlUqds3GN6+wZlbsqw+3wfwAV/HD8FgmrdfCwZ+EYvJ9WfR61GU dbz2eLBIJ7fw5Q6kfNCBp1xLy9lr7BF8O333ly0XjKF19QelO0kUPjSP/UvVdDmw/7LMnQI/dDB4f iBkrCLXSEA3pFUQLkHgw==; 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 1hG0PE-0007XP-GG; Mon, 15 Apr 2019 12:08:12 +0000 Received: from relay11.mail.gandi.net ([217.70.178.231]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hG0P4-0007ML-7w for linux-arm-kernel@lists.infradead.org; Mon, 15 Apr 2019 12:08:04 +0000 Received: from localhost (aaubervilliers-681-1-63-121.w90-88.abo.wanadoo.fr [90.88.18.121]) (Authenticated sender: maxime.ripard@bootlin.com) by relay11.mail.gandi.net (Postfix) with ESMTPSA id DFC08100006; Mon, 15 Apr 2019 12:07:50 +0000 (UTC) From: Maxime Ripard To: Mark Brown , Liam Girdwood Subject: [PATCH 2/2] dt-bindings: sound: sun6i-spdif: Document that the RX channel can be missing Date: Mon, 15 Apr 2019 14:07:46 +0200 Message-Id: X-Mailer: git-send-email 2.21.0 In-Reply-To: <4060ec46117ccf3cd643b8f1b9759ed44d38c5e7.1555330005.git-series.maxime.ripard@bootlin.com> References: <4060ec46117ccf3cd643b8f1b9759ed44d38c5e7.1555330005.git-series.maxime.ripard@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190415_050802_560527_D811B8FB X-CRM114-Status: UNSURE ( 9.83 ) X-CRM114-Notice: Please train this message. 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: Mark Rutland , devicetree@vger.kernel.org, alsa-devel@alsa-project.org, Maxime Ripard , Chen-Yu Tsai , Rob Herring , Frank Rowand , linux-arm-kernel@lists.infradead.org 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 Not all controllers using the A31 SPDIF binding actually have some RX capabilities, and therefore on some controllers we don't have the option to set an RX DMA channel. This was already done in the DTSI, but the binding itself was never updated. Signed-off-by: Maxime Ripard --- Documentation/devicetree/bindings/sound/allwinner,sun6i-a31-spdif.yaml | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun6i-a31-spdif.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun6i-a31-spdif.yaml index 7329d9fcf34c..800f794fafe0 100644 --- a/Documentation/devicetree/bindings/sound/allwinner,sun6i-a31-spdif.yaml +++ b/Documentation/devicetree/bindings/sound/allwinner,sun6i-a31-spdif.yaml @@ -44,14 +44,24 @@ properties: - const: spdif dmas: + minItems: 1 + maxItems: 2 items: - description: RX DMA Channel - description: TX DMA Channel + description: + Some controllers cannot receive but can only transmit data. In + such a case, the RX DMA channel is to be omitted. dma-names: - items: - - const: rx - - const: tx + minItems: 1 + maxItems: 2 + enum: + - rx + - tx + description: + Some controllers cannot receive but can only transmit data. In + such a case, the RX name is to be omitted. resets: maxItems: 1