From: codekipper@gmail.com
To: maxime.ripard@free-electrons.com
Cc: linux-arm-kernel@lists.infradead.org,
linux-sunxi@googlegroups.com, lgirdwood@gmail.com,
broonie@kernel.org, linux-kernel@vger.kernel.org,
alsa-devel@alsa-project.org, be17068@iperbole.bo.it,
Marcus Cooper <codekipper@gmail.com>
Subject: [PATCH v4 1/2] dt-bindings: sunxi :add sun4i SPDIF transceiver
Date: Thu, 4 Feb 2016 12:09:21 +0100 [thread overview]
Message-ID: <1454584162-32449-2-git-send-email-codekipper@gmail.com> (raw)
In-Reply-To: <1454584162-32449-1-git-send-email-codekipper@gmail.com>
From: Marcus Cooper <codekipper@gmail.com>
Add devicetree bindings for the SPDIF transceiver found on
found on Allwinners A10 and A20 SoCs.
Signed-off-by: Marcus Cooper <codekipper@gmail.com>
---
.../bindings/sound/sunxi,sun4i-spdif.txt | 39 ++++++++++++++++++++++
1 file changed, 39 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt
diff --git a/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt b/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt
new file mode 100644
index 0000000..13503aa
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt
@@ -0,0 +1,39 @@
+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.
+For now only playback is supported.
+
+Required properties:
+
+ - compatible : should be one of the following:
+ - "allwinner,sun4i-a10-spdif": for the Allwinner A10 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.
+ "spdif" clock for spdif controller.
+
+Example:
+
+spdif: spdif@01c21000 {
+ compatible = "allwinner,sun4i-a10-spdif";
+ reg = <0x01c21000 0x40>;
+ interrupts = <13>;
+ clocks = <&apb0_gates 1>, <&spdif_clk>;
+ clock-names = "apb", "spdif";
+ dmas = <&dma 0 2>, <&dma 0 2>;
+ dma-names = "rx", "tx";
+ status = "okay";
+};
--
2.7.0
next prev parent reply other threads:[~2016-02-04 11:10 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-04 11:09 [PATCH v4 0/2] ASoC: Add SPDIF support for Allwinner SoCs codekipper
2016-02-04 11:09 ` codekipper [this message]
2016-02-04 11:09 ` [PATCH v4 2/2] ASoC: sunxi: Add support for the SPDIF block codekipper
2016-02-05 9:27 ` Maxime Ripard
2016-02-05 10:23 ` Code Kipper
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