linux-kernel - [PATCH 3/4] ARM: dts: sun8i: Add Reduced Serial Bus controller device node to A23 dtsi

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Message-Id: <1424773744-15106-4-git-send-email-wens@csie.org>
Date:	Tue, 24 Feb 2015 18:29:03 +0800
From:	Chen-Yu Tsai <wens@...e.org>
To:	Wolfram Sang <wsa@...-dreams.de>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>
Cc:	Chen-Yu Tsai <wens@...e.org>, linux-i2c@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, linux-sunxi@...glegroups.com,
	Hans de Goede <hdegoede@...hat.com>
Subject: [PATCH 3/4] ARM: dts: sun8i: Add Reduced Serial Bus controller device node to A23 dtsi

This patch adds a device node for the Reduced Serial Bus (RSB)
controller and the defacto pinmux setting to the A23 dtsi.

Since there is only one possible pinmux setting for RSB, just
set it in the dtsi.

Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 arch/arm/boot/dts/sun8i-a23.dtsi | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-a23.dtsi b/arch/arm/boot/dts/sun8i-a23.dtsi
index 382ebd137ee4..fd9b4c811a5f 100644
--- a/arch/arm/boot/dts/sun8i-a23.dtsi
+++ b/arch/arm/boot/dts/sun8i-a23.dtsi
@@ -600,6 +600,13 @@
 			#size-cells = <0>;
 			#gpio-cells = <3>;
 
+			r_rsb_pins: r_rsb {
+				allwinner,pins = "PL0", "PL1";
+				allwinner,function = "s_rsb";
+				allwinner,drive = <SUN4I_PINCTRL_20_MA>;
+				allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+			};
+
 			r_uart_pins_a: r_uart@0 {
 				allwinner,pins = "PL2", "PL3";
 				allwinner,function = "s_uart";
@@ -607,5 +614,19 @@
 				allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
 			};
 		};
+
+		r_rsb: i2c@...03400 {
+			compatible = "allwinner,sun8i-a23-rsb";
+			reg = <0x01f03400 0x400>;
+			interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&apb0_gates 3>;
+			clock-frequency = <3000000>;
+			resets = <&apb0_rst 3>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&r_rsb_pins>;
+			status = "disabled";
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
 	};
 };
-- 
2.1.4

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