linux-kernel - [PATCH 6.1 108/451] arm64: dts: imx8mm-kontron: Disable pullups for I2C signals on SL/BL i.MX8MM

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Message-ID: <20240324231207.1351418-109-sashal@kernel.org>
Date: Sun, 24 Mar 2024 19:06:24 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Frieder Schrempf <frieder.schrempf@...tron.de>,
	Shawn Guo <shawnguo@...nel.org>,
	Sasha Levin <sashal@...nel.org>
Subject: [PATCH 6.1 108/451] arm64: dts: imx8mm-kontron: Disable pullups for I2C signals on SL/BL i.MX8MM

From: Frieder Schrempf <frieder.schrempf@...tron.de>

[ Upstream commit f19e5bb91d53264d7dac5d845a4825afadf72440 ]

There are external pullup resistors on the board and due to silicon
errata ERR050080 let's disable the internal ones to prevent any
unwanted behavior in case they wear out.

Fixes: 8668d8b2e67f ("arm64: dts: Add the Kontron i.MX8M Mini SoMs and baseboards")
Signed-off-by: Frieder Schrempf <frieder.schrempf@...tron.de>
Signed-off-by: Shawn Guo <shawnguo@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts  | 4 ++--
 arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts
index a079322a37931..8d0527bb6fa59 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts
@@ -277,8 +277,8 @@ MX8MM_IOMUXC_SAI3_MCLK_GPIO5_IO2		0x19
 
 	pinctrl_i2c4: i2c4grp {
 		fsl,pins = <
-			MX8MM_IOMUXC_I2C4_SCL_I2C4_SCL			0x400001c3
-			MX8MM_IOMUXC_I2C4_SDA_I2C4_SDA			0x400001c3
+			MX8MM_IOMUXC_I2C4_SCL_I2C4_SCL			0x40000083
+			MX8MM_IOMUXC_I2C4_SDA_I2C4_SDA			0x40000083
 		>;
 	};
 
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi
index 0679728d24899..884ae2ad35114 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi
@@ -237,8 +237,8 @@ MX8MM_IOMUXC_ECSPI1_SS0_GPIO5_IO9		0x19
 
 	pinctrl_i2c1: i2c1grp {
 		fsl,pins = <
-			MX8MM_IOMUXC_I2C1_SCL_I2C1_SCL			0x400001c3
-			MX8MM_IOMUXC_I2C1_SDA_I2C1_SDA			0x400001c3
+			MX8MM_IOMUXC_I2C1_SCL_I2C1_SCL			0x40000083
+			MX8MM_IOMUXC_I2C1_SDA_I2C1_SDA			0x40000083
 		>;
 	};
 
-- 
2.43.0