Add both hardware and software i2c support for mt7622.
Signed-off-by: Weijie Gao <weijie....@mediatek.com>
---
arch/arm/dts/mt7622-rfb.dts | 18 ++++++++++++++++++
arch/arm/dts/mt7622.dtsi | 24 ++++++++++++++++++++++++
2 files changed, 42 insertions(+)
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";
+ };
+
};
--
2.17.1
