linux-kernel - [PATCH v2 02/13] Documentation: mfd: Add DT bindings for i.MX Audiomix

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Message-Id: <1585150731-3354-3-git-send-email-abel.vesa@nxp.com>
Date:   Wed, 25 Mar 2020 17:38:40 +0200
From:   Abel Vesa <abel.vesa@....com>
To:     Rob Herring <robh@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <kernel@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        Mike Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Lee Jones <lee.jones@...aro.org>,
        Anson Huang <anson.huang@....com>,
        Leonard Crestez <leonard.crestez@....com>,
        Peng Fan <peng.fan@....com>, Jacky Bai <ping.bai@....com>,
        Philipp Zabel <p.zabel@...gutronix.de>
Cc:     NXP Linux Team <linux-imx@....com>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-clk@...r.kernel.org, Abel Vesa <abel.vesa@....com>
Subject: [PATCH v2 02/13] Documentation: mfd: Add DT bindings for i.MX Audiomix

The i.MX Audiomix is a mix of clock gates, reset bits
and some other i.MX audio specific functionalities.
Add information for the MFD, its clock and reset controllers.

Signed-off-by: Abel Vesa <abel.vesa@....com>
---
 .../devicetree/bindings/mfd/fsl,imx-audiomix.txt   | 34 ++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/fsl,imx-audiomix.txt

diff --git a/Documentation/devicetree/bindings/mfd/fsl,imx-audiomix.txt b/Documentation/devicetree/bindings/mfd/fsl,imx-audiomix.txt
new file mode 100644
index 00000000..1622818
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/fsl,imx-audiomix.txt
@@ -0,0 +1,34 @@
+Freescale i.MX Audiomix
+======================================
+
+Audiomix is a conglomerate of different functionalities.
+
+Required properties:
+- compatible: Should be "fsl,<chip>-mix" for the MFD device
+	Should be"fsl,<chip>-audiomix-clk" for the clock controller
+	Should be"fsl,<chip>-audiomix-reset" for the reset controller
+	Some functionalities of the audiomix will be registered as syscon.
+- reg: should be register base and length as documented in the
+  datasheet
+
+example:
+	audiomix: audiomix@...20000 {
+		compatible = "fsl,imx8mp-mix";
+		reg = <0x30e20000 0x10000>;
+
+		audiomix_clk: clock-controller {
+			compatible = "fsl,imx8mp-audiomix-clk";
+			#clock-cells = <1>;
+			clocks = <&clk IMX8MP_CLK_AUDIO_ROOT>,
+				 <&clk IMX8MP_CLK_AUDIO_AHB>,
+				 <&clk IMX8MP_CLK_AUDIO_AXI_DIV>;
+			clock-names = "audio_root",
+				      "audio_ahb",
+				      "audio_axi_div";
+		};
+
+		audiomix_reset: reset-controller {
+			compatible = "fsl,imx8mp-audiomix-reset";
+			#reset-cells = <1>;
+		};
+	};
-- 
2.7.4