linux-kernel - [PATCH v4 2/3] dt-binding: i3c: Document Synopsys DesignWare I3C

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Date:   Tue, 13 Nov 2018 14:09:52 +0000
From:   Vitor Soares <vitor.soares@...opsys.com>
To:     boris.brezillon@...tlin.com, wsa@...-dreams.de,
        linux-i2c@...r.kernel.org, corbet@....net,
        linux-doc@...r.kernel.org, gregkh@...uxfoundation.org,
        arnd@...db.de
Cc:     psroka@...ence.com, agolec@...ence.com, adouglas@...ence.com,
        bfolta@...ence.com, dkos@...ence.com, alicja@...ence.com,
        cwronka@...ence.com, sureshp@...ence.com, rafalc@...ence.com,
        thomas.petazzoni@...tlin.com, nm@...com, robh+dt@...nel.org,
        pawel.moll@....com, mark.rutland@....com,
        ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        vitor.soares@...opsys.com, geert@...ux-m68k.org,
        linus.walleij@...aro.org, Xiang.Lin@...aptics.com,
        linux-gpio@...r.kernel.org, nsekhar@...com, pgaj@...ence.com,
        peda@...ntia.se, mshettel@...eaurora.org, swboyd@...omium.org,
        joao.pinto@...opsys.com
Subject: [PATCH v4 2/3] dt-binding: i3c: Document Synopsys DesignWare I3C

Document Synopsys DesignWare I3C master module

Signed-off-by: Vitor Soares <vitor.soares@...opsys.com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
Changes in v4:
- Change email soares@...opsys.com to vitor.soares@...opsys.com
- Add Rob Herring R-b

Changes in v3:
- Remove dummy characters

Changes in v2:
- Address the changes in Documentation/devicetree/bindings/i3c/i3c.txt
- Add controller version on compatible string

 .../devicetree/bindings/i3c/snps,dw-i3c-master.txt | 41 ++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt

diff --git a/Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt b/Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt
new file mode 100644
index 0000000..5020eb7
--- /dev/null
+++ b/Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt
@@ -0,0 +1,41 @@
+Bindings for Synopsys DesignWare I3C master block
+=================================================
+
+Required properties:
+--------------------
+- compatible: shall be "snps,dw-i3c-master-1.00a"
+- clocks: shall reference the core_clk
+- interrupts: the interrupt line connected to this I3C master
+- reg: Offset and length of I3C master registers
+
+Mandatory properties defined by the generic binding (see
+Documentation/devicetree/bindings/i3c/i3c.txt for more details):
+
+- #address-cells: shall be set to 3
+- #size-cells: shall be set to 0
+
+Optional properties defined by the generic binding (see
+Documentation/devicetree/bindings/i3c/i3c.txt for more details):
+
+- i2c-scl-hz
+- i3c-scl-hz
+
+I3C device connected on the bus follow the generic description (see
+Documentation/devicetree/bindings/i3c/i3c.txt for more details).
+
+Example:
+
+	i3c-master@...0 {
+		compatible = "snps,dw-i3c-master-1.00a";
+		#address-cells = <3>;
+		#size-cells = <0>;
+		reg = <0x02000 0x1000>;
+		interrupts = <0>;
+		clocks = <&i3cclk>;
+
+		eeprom@57{
+			compatible = "atmel,24c01";
+			reg = <0x57 0x0 0x10>;
+			pagesize = <0x8>;
+		};
+	};
-- 
2.7.4