From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?q?Myl=C3=A8ne=20Josserand?= Subject: [PATCH v2 03/10] dt-bindings: sound: Add new reset compatible for sun4i-i2s Date: Tue, 17 Jan 2017 15:02:23 +0100 Message-ID: <20170117140230.23142-4-mylene.josserand@free-electrons.com> References: <20170117140230.23142-1-mylene.josserand@free-electrons.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20170117140230.23142-1-mylene.josserand@free-electrons.com> Sender: linux-kernel-owner@vger.kernel.org To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, maxime.ripard@free-electrons.com, wens@csie.org, mturquette@baylibre.com, sboyd@codeaurora.org, mark.rutland@arm.com, robh+dt@kernel.org Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-sunxi@googlegroups.com, thomas.petazzoni@free-electrons.com, mylene.josserand@free-electrons.com, alexandre.belloni@free-electrons.com List-Id: devicetree@vger.kernel.org Add a new compatible for sun4i-i2s driver to handle some SoCs that have a reset line that must be asserted/deasserted. This new compatible, "allwinner,sun6i-a31-i2s", requires two properties: - resets: phandle to the reset line - reset-names: the name of the reset line ("rst"). Except these differences, the compatible is identical to previous one which will not handle a reset line. Signed-off-by: Mylène Josserand --- .../devicetree/bindings/sound/sun4i-i2s.txt | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt index 7a2c0945fd22..f673206e309b 100644 --- a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt +++ b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt @@ -7,6 +7,7 @@ Required properties: - compatible: should be one of the following: - "allwinner,sun4i-a10-i2s" + - "allwinner,sun6i-a31-i2s" for controller with reset lines - reg: physical base address of the controller and length of memory mapped region. - interrupts: should contain the I2S interrupt. @@ -19,7 +20,13 @@ Required properties: - "mod" : module clock for the I2S controller - #sound-dai-cells : Must be equal to 0 +Required properties for the following compatibles: + - "allwinner,sun6i-a31-i2s" +- resets: phandle to the reset line for this codec +- reset-names: Contains the reset signal name "rst" + Example: +For "allwinner,sun4i-a10-i2s": i2s0: i2s@01c22400 { #sound-dai-cells = <0>; @@ -32,3 +39,19 @@ i2s0: i2s@01c22400 { <&dma SUN4I_DMA_NORMAL 3>; dma-names = "rx", "tx"; }; + +For "allwinner,sun6i-a31-i2s": + +dai: dai@01c22c00 { + #sound-dai-cells = <0>; + compatible = "allwinner,sun6i-a31-i2s"; + reg = <0x01c22c00 0x200>; + interrupts = ; + clocks = <&ccu CLK_BUS_CODEC>, <&ccu CLK_AC_DIG>; + clock-names = "apb", "mod"; + resets = <&ccu RST_BUS_CODEC>; + reset-names = "rst"; + dmas = <&dma 15>, /* AUDIO_CODEC port */ + <&dma 15>; /* AUDIO_CODEC port */ + dma-names = "rx", "tx"; +}; -- 2.11.0