From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933032AbbI3RwG (ORCPT ); Wed, 30 Sep 2015 13:52:06 -0400 Received: from mail-wi0-f169.google.com ([209.85.212.169]:36250 "EHLO mail-wi0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932255AbbI3RvF (ORCPT ); Wed, 30 Sep 2015 13:51:05 -0400 From: codekipper@gmail.com To: maxime.ripard@free-electrons.com Cc: lgirdwood@gmail.com, linux-arm-kernel@lists.infradead.org, broonie@kernel.org, linux-sunxi@googlegroups.com, linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org, be17068@iperbole.bo.it, Marcus Cooper Subject: [PATCH v2 1/4] dt-bindings: add sunxi SPDIF transceiver bindings Date: Wed, 30 Sep 2015 19:50:55 +0200 Message-Id: <1443635458-8873-2-git-send-email-codekipper@gmail.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1443635458-8873-1-git-send-email-codekipper@gmail.com> References: <1443635458-8873-1-git-send-email-codekipper@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Marcus Cooper Add devicetree bindings for the SPDIF transceiver found on found on Allwinners A10, A20 and A31 SoCs. Signed-off-by: Marcus Cooper --- .../devicetree/bindings/sound/sunxi,spdif.txt | 49 ++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/sunxi,spdif.txt diff --git a/Documentation/devicetree/bindings/sound/sunxi,spdif.txt b/Documentation/devicetree/bindings/sound/sunxi,spdif.txt new file mode 100644 index 0000000..1868722 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/sunxi,spdif.txt @@ -0,0 +1,49 @@ +Allwinner Sony/Philips Digital Interface Format (S/PDIF) Controller + +The Allwinner S/PDIF audio block is a transceiver that allows the +processor to receive and transmit digital audio via an coaxial cable or +a fibre cable. + +Required properties: + + - compatible : should be one of the following: + - "allwinner,sun4i-a10-spdif": for the Allwinner A10 SoC + - "allwinner,sun7i-a20-spdif": for the Allwinner A20 SoC + - "allwinner,sun6i-a31-spdif": for the Allwinner A31 SoC + + - reg : Offset and length of the register set for the device. + + - interrupts : Contains the spdif interrupt. + + - dmas : Generic dma devicetree binding as described in + Documentation/devicetree/bindings/dma/dma.txt. + + - dma-names : Two dmas have to be defined, "tx" and "rx". + + - clocks : Contains an entry for each entry in clock-names. + + - clock-names : Includes the following entries: + "apb" clock for the spdif bus. + "audio" clock from the audio pll. + "spdif" clock for spdif controller. + +Optional: + + - spdif-in : Enable block for capturing an SPDIF signal. + + - spdif-out : Enable block for transmitting an SPDIF signal. + +Example: + +spdif: spdif@01c21000 { + compatible = "allwinner,sun4i-a10-spdif"; + reg = <0x01c21000 0x40>; + interrupts = <13>; + clocks = <&apb0_gates 1>, <&pll2 0>, <&spdif_clk>; + clock-names = "apb", "audio", "spdif"; + dmas = <&dma 0 2>, <&dma 0 2>; + dma-names = "rx", "tx"; + spdif-in = "disabled"; + spdif-out = "okay"; + status = "okay"; +}; -- 1.9.1