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

[ 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>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
index 49d7470812eefcda7f13809e750889a775595a6b..362f9360b4a51648c00870cab2f60c288f1a734e 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
@@ -275,8 +275,8 @@
 
        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-n801x-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
index 42bbbb3f532bc96fa2cb161f033f956243e58c95..646615ca4b48ba0d3a49c01eeb7acf439582a30c 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
@@ -220,8 +220,8 @@
 
        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
                >;
        };