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- From 9ae337317d5634569bda83dfc5e0658fce34b1e2 Mon Sep 17 00:00:00 2001
- From: Weijie Gao <[email protected]>
- Date: Mon, 25 Jul 2022 16:30:30 +0800
- Subject: [PATCH 18/31] arm: dts: mt7622: add i2c support
- Add both hardware and software i2c support for mt7622.
- Reviewed-by: Simon Glass <[email protected]>
- Signed-off-by: Weijie Gao <[email protected]>
- ---
- arch/arm/dts/mt7622-rfb.dts | 18 ++++++++++++++++++
- arch/arm/dts/mt7622.dtsi | 24 ++++++++++++++++++++++++
- 2 files changed, 42 insertions(+)
- --- 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 {
- @@ -249,3 +257,13 @@
- &u3phy {
- status = "okay";
- };
- +
- +&soft_i2c {
- + status = "disabled";
- +};
- +
- +&i2c1 {
- + pinctrl-names = "default";
- + pinctrl-0 = <&i2c1_pins_default>;
- + status = "okay";
- +};
- --- a/arch/arm/dts/mt7622.dtsi
- +++ b/arch/arm/dts/mt7622.dtsi
- @@ -440,4 +440,28 @@
- 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";
- + };
- +
- };
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