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Date: Mon, 1 Jun 2015 14:25:41 +0200
From: Matthias Brugger <matthias.bgg@...il.com>
To: Eddie Huang <eddie.huang@...iatek.com>
Cc: Sascha Hauer <s.hauer@...gutronix.de>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"moderated list:ARM/Mediatek SoC..."
<linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH 2/2] arm64: dts: mt8173: Add I2C device node
2015-06-01 8:29 GMT+02:00 Eddie Huang <eddie.huang@...iatek.com>:
> Add MT8173 I2C device nodes, include I2C controllers and pins.
> MT8173 has six I2C controllers, from i2c0 to i2c6, exclude i2c5.
> The 6th I2C controller register base doesn't next to 5th I2C,
> and there is a hardware between 5th and 6th I2C controller. So
> SoC designer name 6th controller as "i2c6", not "i2c5".
>
> Signed-off-by: Eddie Huang <eddie.huang@...iatek.com>
> ---
> arch/arm64/boot/dts/mediatek/mt8173.dtsi | 119 +++++++++++++++++++++++++++++++
> 1 file changed, 119 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> index b52ec43..72d9ab1 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> @@ -158,6 +158,53 @@
> interrupts = <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
> <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
> <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
> + i2c0_pins_a: i2c0@0 {
> + pins1 {
> + pinmux = <MT8173_PIN_45_SDA0__FUNC_SDA0>,
> + <MT8173_PIN_46_SCL0__FUNC_SCL0>;
> + bias-disable;
> + };
> + };
> +
> + i2c1_pins_a: i2c1@0 {
> + pins1 {
> + pinmux = <MT8173_PIN_125_SDA1__FUNC_SDA1>,
> + <MT8173_PIN_126_SCL1__FUNC_SCL1>;
> + bias-disable;
> + };
> + };
> +
> + i2c2_pins_a: i2c2@0 {
> + pins1 {
> + pinmux = <MT8173_PIN_43_SDA2__FUNC_SDA2>,
> + <MT8173_PIN_44_SCL2__FUNC_SCL2>;
> + bias-disable;
> + };
> + };
> +
> + i2c3_pins_a: i2c3@0 {
> + pins1 {
> + pinmux = <MT8173_PIN_106_SDA3__FUNC_SDA3>,
> + <MT8173_PIN_107_SCL3__FUNC_SCL3>;
> + bias-disable;
> + };
> + };
> +
> + i2c4_pins_a: i2c4@0 {
> + pins1 {
> + pinmux = <MT8173_PIN_133_SDA4__FUNC_SDA4>,
> + <MT8173_PIN_134_SCL4__FUNC_SCL4>;
> + bias-disable;
> + };
> + };
> +
> + i2c6_pins_a: i2c6@0 {
> + pins1 {
> + pinmux = <MT8173_PIN_100_MSDC2_DAT0__FUNC_SDA5>,
> + <MT8173_PIN_101_MSDC2_DAT1__FUNC_SCL5>;
> + bias-disable;
> + };
> + };
> };
>
> watchdog: watchdog@...07000 {
> @@ -194,6 +241,78 @@
> (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
> };
>
> + i2c0: i2c@...07000 {
> + compatible = "mediatek,mt8173-i2c";
> + reg = <0 0x11007000 0 0x70>,
> + <0 0x11000100 0 0x80>;
> + interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_LOW>;
> + clock-div = <16>;
> + clocks = <&pericfg CLK_PERI_I2C0>,
> + <&pericfg CLK_PERI_AP_DMA>;
> + clock-names = "main", "dma";
> + status = "disabled";
Please order nodes by their register address.
Thanks,
Matthias
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