diff mbox series

[18/31] arm: dts: mt7622: add i2c support

Message ID b1891af320bc03b4cab227178f22955a1c22421b.1659581119.git.weijie.gao@mediatek.com
State Superseded
Delegated to: Tom Rini
Headers show
Series Add support for MediaTek MT7981/MT7986 SoCs | expand

Commit Message

Weijie Gao (高惟杰) Aug. 4, 2022, 3:36 a.m. UTC 
Add both hardware and software i2c support for mt7622.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
---
 arch/arm/dts/mt7622-rfb.dts | 18 ++++++++++++++++++
 arch/arm/dts/mt7622.dtsi    | 24 ++++++++++++++++++++++++
 2 files changed, 42 insertions(+)

Comments

Simon Glass Aug. 4, 2022, 1:57 p.m. UTC | #1 
On Wed, 3 Aug 2022 at 21:38, Weijie Gao <weijie.gao@mediatek.com> wrote:
>
> Add both hardware and software i2c support for mt7622.
>
> Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
> ---
>  arch/arm/dts/mt7622-rfb.dts | 18 ++++++++++++++++++
>  arch/arm/dts/mt7622.dtsi    | 24 ++++++++++++++++++++++++
>  2 files changed, 42 insertions(+)

Reviewed-by: Simon Glass <sjg@chromium.org>
diff mbox series

Patch

diff --git a/arch/arm/dts/mt7622-rfb.dts b/arch/arm/dts/mt7622-rfb.dts
index 30a9137407..b44f19f05a 100644
--- a/arch/arm/dts/mt7622-rfb.dts
+++ b/arch/arm/dts/mt7622-rfb.dts
@@ -159,6 +159,14 @@ 
 		};
 
 	};
+
+	i2c1_pins_default: i2c1-default {
+		mux {
+			function = "i2c";
+			groups = "i2c1_0";
+		};
+	};
+
 };
 
 &snfi {
@@ -242,3 +250,13 @@ 
 &u3phy {
        status = "okay";
 };
+
+&soft_i2c {
+	status = "disabled";
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins_default>;
+	status = "okay";
+};
diff --git a/arch/arm/dts/mt7622.dtsi b/arch/arm/dts/mt7622.dtsi
index fb6c1b7154..2d89fa08b4 100644
--- a/arch/arm/dts/mt7622.dtsi
+++ b/arch/arm/dts/mt7622.dtsi
@@ -424,4 +424,28 @@ 
 		status = "disabled";
 	};
 
+	soft_i2c: soft_i2c@0 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "i2c-gpio";
+		gpios = <&gpio 56 GPIO_ACTIVE_HIGH>, /* SDA */
+			<&gpio 55 GPIO_ACTIVE_HIGH>; /* CLK */
+		i2c-gpio,delay-us = <5>;
+		status = "disabled";
+	};
+
+	i2c1: i2c@11008000 {
+		compatible = "mediatek,mt7622-i2c";
+		reg = <0x11008000 0x90>,
+		      <0x11000180 0x80>;
+		interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_LOW>;
+		clock-div = <16>;
+		clocks = <&pericfg CLK_PERI_I2C1_PD>,
+			 <&pericfg CLK_PERI_AP_DMA_PD>;
+		clock-names = "main", "dma";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+	};
+
 };