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arm64: dts: imx8mm-kontron: Disable pullups for I2C signals on SL/BL i.MX8MM

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[ 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@kontron.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Frieder Schrempf 2024-01-08 09:48:59 +01:00 committed by Sasha Levin
parent 0c3a9a2b42
commit 44033a1cb2
2 changed files with 4 additions and 4 deletions
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4
arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts
View File

@ -279,8 +279,8 @@
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
>;
};

4
arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi
View File

@ -237,8 +237,8 @@
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
>;
};