arm64: dts: imx8mm-kontron: Disable pullups for I2C signals on OSM-S 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: de9618e84f76 ("arm64: dts: Add support for Kontron SL/BL i.MX8MM OSM-S")
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-osm-s.dts b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl-osm-s.dts
index 8b16bd6..0730c22 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl-osm-s.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl-osm-s.dts
@@ -294,8 +294,8 @@
 
        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-osm-s.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-kontron-osm-s.dtsi
index 6e75ab8..3e7db96 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-osm-s.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-osm-s.dtsi
@@ -252,8 +252,8 @@
 
        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
                >;
        };