linux-kernel - [PATCH v7 10/13] dt-bindings: Add qcom slimbus controller bindings

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Date:   Wed, 15 Nov 2017 14:10:40 +0000
From:   srinivas.kandagatla@...aro.org
To:     gregkh@...uxfoundation.org, broonie@...nel.org,
        alsa-devel@...a-project.org
Cc:     sdharia@...eaurora.org, bp@...e.de, poeschel@...onage.de,
        treding@...dia.com, andreas.noever@...il.com, alan@...ux.intel.com,
        mathieu.poirier@...aro.org, daniel@...ll.ch, jkosina@...e.cz,
        sharon.dvir1@...l.huji.ac.il, joe@...ches.com, davem@...emloft.net,
        james.hogan@...tec.com, michael.opdenacker@...e-electrons.com,
        robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, vinod.koul@...el.com, arnd@...db.de,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH v7 10/13] dt-bindings: Add qcom slimbus controller bindings

From: Sagar Dharia <sdharia@...eaurora.org>

This patch add device tree bindings for Qualcomm slimbus controller.

Signed-off-by: Sagar Dharia <sdharia@...eaurora.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 .../devicetree/bindings/slimbus/slim-qcom-ctrl.txt | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/slimbus/slim-qcom-ctrl.txt

diff --git a/Documentation/devicetree/bindings/slimbus/slim-qcom-ctrl.txt b/Documentation/devicetree/bindings/slimbus/slim-qcom-ctrl.txt
new file mode 100644
index 000000000000..e4d28910b2e0
--- /dev/null
+++ b/Documentation/devicetree/bindings/slimbus/slim-qcom-ctrl.txt
@@ -0,0 +1,43 @@
+Qualcomm SLIMBUS controller
+This controller is used if applications processor driver controls slimbus
+master component.
+
+Required properties:
+
+ - #address-cells - refer to Documentation/devicetree/bindings/slimbus/bus.txt
+ - #size-cells	- refer to Documentation/devicetree/bindings/slimbus/bus.txt
+
+ - reg : Offset and length of the register region(s) for the device
+ - reg-names : Register region name(s) referenced in reg above
+	 Required register resource entries are:
+	 "ctrl": Physical address of controller register blocks
+ - compatible : should be "qcom,<SOC-NAME>-slim" for SOC specific compatible
+ 		followed by "qcom,slim" for fallback.
+ - interrupts : Interrupt number used by this controller
+ - clocks : Interface and core clocks used by this slimbus controller
+ - clock-names : Required clock-name entries are:
+	"iface_clk" : Interface clock for this controller
+	"core_clk" : Interrupt for controller core's BAM
+
+
+Optional property:
+ - reg entry for slew rate : If slew rate control register is provided, this
+	entry should be used.
+ - reg-name for slew rate: "slew"
+
+Example:
+
+	slim@...80000 {
+		compatible = "qcom,apq8064-slim", "qcom,slim";
+		reg = <0x28080000 0x2000>,
+		interrupts = <0 33 0>;
+		clocks = <&lcc SLIMBUS_SRC>, <&lcc AUDIO_SLIMBUS_CLK>;
+		clock-names = "iface", "core";
+		#address-cells = <2>;
+		#size-cell = <0>;
+
+		codec: wcd9310@1,0{
+			compatible = "slim217,60";
+			reg = <1 0>;
+		};
+	};
-- 
2.15.0