linux-kernel - [PATCH 2/2] DT: marvell,mmp2: add more TWSI controllers

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Date:   Mon, 17 Sep 2018 13:39:47 +0200
From:   Lubomir Rintel <lkundrak@...sk>
To:     linux-kernel@...r.kernel.org
Cc:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        Lubomir Rintel <lkundrak@...sk>,
        Eric Miao <eric.y.miao@...il.com>,
        Haojian Zhuang <haojian.zhuang@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Subject: [PATCH 2/2] DT: marvell,mmp2: add more TWSI controllers

I've gotten the base addresses, clocks and interrupts from an rusty and old
out-of-tree driver. I haven't actually checked against the datasheet, since
that one is reserved for the Marvell inner circle.

Tested with an accelerometer on TWSI6 on an OLPC XO 1.75 machine.

Cc: Eric Miao <eric.y.miao@...il.com>
Cc: Haojian Zhuang <haojian.zhuang@...il.com>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Mark Rutland <mark.rutland@....com>
Signed-off-by: Lubomir Rintel <lkundrak@...sk>
---
 arch/arm/boot/dts/mmp2.dtsi | 49 +++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/arch/arm/boot/dts/mmp2.dtsi b/arch/arm/boot/dts/mmp2.dtsi
index 47e5b63339d1..2bd4e94501ce 100644
--- a/arch/arm/boot/dts/mmp2.dtsi
+++ b/arch/arm/boot/dts/mmp2.dtsi
@@ -232,6 +232,55 @@
 				status = "disabled";
 			};
 
+			twsi3: i2c@...32000 {
+				compatible = "mrvl,mmp-twsi";
+				reg = <0xd4032000 0x1000>;
+				interrupt-parent = <&intcmux17>;
+				interrupts = <1>;
+				clocks = <&soc_clocks MMP2_CLK_TWSI2>;
+				resets = <&soc_clocks MMP2_CLK_TWSI2>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
+
+			twsi4: i2c@...33000 {
+				compatible = "mrvl,mmp-twsi";
+				reg = <0xd4033000 0x1000>;
+				interrupt-parent = <&intcmux17>;
+				interrupts = <2>;
+				clocks = <&soc_clocks MMP2_CLK_TWSI3>;
+				resets = <&soc_clocks MMP2_CLK_TWSI3>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
+
+
+			twsi5: i2c@...33800 {
+				compatible = "mrvl,mmp-twsi";
+				reg = <0xd4033800 0x1000>;
+				interrupt-parent = <&intcmux17>;
+				interrupts = <3>;
+				clocks = <&soc_clocks MMP2_CLK_TWSI4>;
+				resets = <&soc_clocks MMP2_CLK_TWSI4>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
+
+			twsi6: i2c@...34000 {
+				compatible = "mrvl,mmp-twsi";
+				reg = <0xd4034000 0x1000>;
+				interrupt-parent = <&intcmux17>;
+				interrupts = <4>;
+				clocks = <&soc_clocks MMP2_CLK_TWSI5>;
+				resets = <&soc_clocks MMP2_CLK_TWSI5>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
+
 			rtc: rtc@...10000 {
 				compatible = "mrvl,mmp-rtc";
 				reg = <0xd4010000 0x1000>;
-- 
2.17.1