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

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>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts
index dcec57c20399edf6e457b5fbf4fbc2b9dd0370b1..5fd2e45258b111c5fe25fae2c41b6d1df17547ab 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts
@@ -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
                >;
        };
 

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi
index 1f8326613ee9e35fb3532c07b9b922585be3aad4..2076148e08627a167b3b34d886ec5456bb5e18eb 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi
@@ -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
                >;
        };