linux-kernel - [PATCH 4/5] mips: dts: mscc: Add i2c on ocelot

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Date:   Tue, 17 Jul 2018 13:48:36 +0200
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Wolfram Sang <wsa@...-dreams.de>,
        Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
        James Hogan <jhogan@...nel.org>
Cc:     Paul Burton <paul.burton@...s.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mips@...ux-mips.org,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Allan Nielsen <allan.nielsen@...rosemi.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Subject: [PATCH 4/5] mips: dts: mscc: Add i2c on ocelot

Ocelot has an i2c controller, add it. There is only one possible pinmux
configuration so add it as well.

Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
---
 arch/mips/boot/dts/mscc/ocelot.dtsi | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/mips/boot/dts/mscc/ocelot.dtsi b/arch/mips/boot/dts/mscc/ocelot.dtsi
index 4f33dbc67348..8b6398e09bb6 100644
--- a/arch/mips/boot/dts/mscc/ocelot.dtsi
+++ b/arch/mips/boot/dts/mscc/ocelot.dtsi
@@ -78,6 +78,20 @@
 			status = "disabled";
 		};
 
+		i2c: i2c@...400 {
+			compatible = "mscc,ocelot-i2c", "snps,designware-i2c";
+			pinctrl-0 = <&i2c_pins>;
+			pinctrl-names = "default";
+			reg = <0x100400 0x100>, <0x198 0x8>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			interrupts = <8>;
+			i2c-sda-hold-time-ns = <300>;
+			clocks = <&ahb_clk>;
+
+			status = "disabled";
+		};
+
 		uart2: serial@...800 {
 			pinctrl-0 = <&uart2_pins>;
 			pinctrl-names = "default";
@@ -178,6 +192,11 @@
 				pins = "GPIO_12", "GPIO_13";
 				function = "uart2";
 			};
+
+			i2c_pins: i2c-pins {
+				pins = "GPIO_16", "GPIO_17";
+				function = "twi";
+			};
 		};
 
 		mdio0: mdio@...009c {
-- 
2.18.0