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73 lines
2.1 KiB
Diff
73 lines
2.1 KiB
Diff
From 90d4eb65db14a3f2e776d2a8b1dc832e70198328 Mon Sep 17 00:00:00 2001
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From: Frank Wunderlich <frank-w@public-files.de>
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Date: Tue, 17 Dec 2024 10:12:31 +0100
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Subject: [PATCH 19/32] arm64: dts: mediatek: mt7988a-bpi-r4: Enable I2C
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controllers
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Enable the I2C0, I2C2 controllers found on the BananaPi R4 board.
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Both controllers are not accessible from user and having fixed spare
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devices. I2C0 have a pmic connected, I2C2 is used with I2C-multiplexer
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for e.g. SFP cages.
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The missing I2C1 is connected to GPIO header which can have either GPIO
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mode or I2C mode.
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Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
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Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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Link: https://lore.kernel.org/r/20241217091238.16032-18-linux@fw-web.de
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Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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---
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.../boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dts | 12 ++++++++++++
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arch/arm64/boot/dts/mediatek/mt7988a.dtsi | 6 +++---
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2 files changed, 15 insertions(+), 3 deletions(-)
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--- a/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dts
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+++ b/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dts
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@@ -60,6 +60,18 @@
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};
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};
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+&i2c0 {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&i2c0_pins>;
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+ status = "okay";
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+};
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+
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+&i2c2 {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&i2c2_1_pins>;
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+ status = "okay";
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+};
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+
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&pio {
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mdio0_pins: mdio0-pins {
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mux {
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--- a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
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+++ b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
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@@ -269,7 +269,7 @@
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status = "disabled";
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};
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- i2c@11003000 {
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+ i2c0: i2c@11003000 {
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compatible = "mediatek,mt7981-i2c";
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reg = <0 0x11003000 0 0x1000>,
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<0 0x10217080 0 0x80>;
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@@ -283,7 +283,7 @@
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status = "disabled";
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};
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- i2c@11004000 {
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+ i2c1: i2c@11004000 {
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compatible = "mediatek,mt7981-i2c";
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reg = <0 0x11004000 0 0x1000>,
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<0 0x10217100 0 0x80>;
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@@ -297,7 +297,7 @@
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status = "disabled";
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};
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- i2c@11005000 {
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+ i2c2: i2c@11005000 {
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compatible = "mediatek,mt7981-i2c";
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reg = <0 0x11005000 0 0x1000>,
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<0 0x10217180 0 0x80>;
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