From: Daniel Baluta <daniel.baluta@nxp.com>
Date: Mon, 2 Mar 2026 13:38:04 +0000 (+0200)
Subject: arm64: dts: imx8mp: Make MX8MP_I2C_DEFAULT independent on drive strength
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=95f56afadb0905e2181f3e966b4e5173780a05a6;p=thirdparty%2Fkernel%2Fstable.git

arm64: dts: imx8mp: Make MX8MP_I2C_DEFAULT independent on drive strength

Currently MX8MP_I2C_DEFAULT macro includes a fixed drive
strength (MX8MP_DSE_X6) thus limiting its use to only I2C
pins that require X6 drive.

There are many pinctrl configurations for I2C that use different
drive strength while still using the common I2C default configurations
(pull-up, Schmitt input, pull enable, SION).

So make the MX8MP_I2C_DEFAULT macro more flexible and reusable by removing
DSE_X6 drive strength from it's definition but add or it in all places
it is necessary.

Reviewed-by: Maud Spierings <maudspierings@gocontroll.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h b/arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h
index 16f5899de415..26e7a9428c4c 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h
+++ b/arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h
@@ -36,7 +36,7 @@
 /* long defaults */
 #define MX8MP_USDHC_DATA_DEFAULT (MX8MP_FSEL_FAST | MX8MP_PULL_UP | \
 				  MX8MP_HYS_SCHMITT | MX8MP_PULL_ENABLE)
-#define MX8MP_I2C_DEFAULT (MX8MP_DSE_X6 | MX8MP_PULL_UP | MX8MP_HYS_SCHMITT | \
+#define MX8MP_I2C_DEFAULT (MX8MP_PULL_UP | MX8MP_HYS_SCHMITT | \
 			   MX8MP_PULL_ENABLE | MX8MP_SION)
 
 /*
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81-moduline-display-106.dts b/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81-moduline-display-106.dts
index 399230144ce3..87b20b856458 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81-moduline-display-106.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81-moduline-display-106.dts
@@ -302,36 +302,36 @@
 	pinctrl_i2c2: i2c2grp {
 		fsl,pins = <
 			MX8MP_IOMUXC_I2C2_SCL__I2C2_SCL
-				MX8MP_I2C_DEFAULT
+				(MX8MP_DSE_X6 | MX8MP_I2C_DEFAULT)
 			MX8MP_IOMUXC_I2C2_SDA__I2C2_SDA
-				MX8MP_I2C_DEFAULT
+				(MX8MP_DSE_X6 | MX8MP_I2C_DEFAULT)
 		>;
 	};
 
 	pinctrl_i2c2_gpio: i2c2-gpiogrp {
 		fsl,pins = <
 			MX8MP_IOMUXC_I2C2_SCL__GPIO5_IO16
-				MX8MP_I2C_DEFAULT
+				(MX8MP_DSE_X6 | MX8MP_I2C_DEFAULT)
 			MX8MP_IOMUXC_I2C2_SDA__GPIO5_IO17
-				MX8MP_I2C_DEFAULT
+				(MX8MP_DSE_X6 | MX8MP_I2C_DEFAULT)
 		>;
 	};
 
 	pinctrl_i2c4: i2c4grp {
 		fsl,pins = <
 			MX8MP_IOMUXC_ECSPI2_MISO__I2C4_SCL
-				MX8MP_I2C_DEFAULT
+				(MX8MP_DSE_X6 | MX8MP_I2C_DEFAULT)
 			MX8MP_IOMUXC_ECSPI2_SS0__I2C4_SDA
-				MX8MP_I2C_DEFAULT
+				(MX8MP_DSE_X6 | MX8MP_I2C_DEFAULT)
 		>;
 	};
 
 	pinctrl_i2c4_gpio: i2c4-gpiogrp {
 		fsl,pins = <
 			MX8MP_IOMUXC_ECSPI2_MISO__GPIO5_IO12
-				MX8MP_I2C_DEFAULT
+				(MX8MP_DSE_X6 | MX8MP_I2C_DEFAULT)
 			MX8MP_IOMUXC_ECSPI2_SS0__GPIO5_IO13
-				MX8MP_I2C_DEFAULT
+				(MX8MP_DSE_X6 | MX8MP_I2C_DEFAULT)
 		>;
 	};
 
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81.dtsi
index 761ee046eb72..bf49ae942d41 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81.dtsi
@@ -425,18 +425,18 @@
 	pinctrl_i2c1: i2c1grp {
 		fsl,pins = <
 			MX8MP_IOMUXC_I2C1_SCL__I2C1_SCL
-				MX8MP_I2C_DEFAULT
+				(MX8MP_DSE_X6 | MX8MP_I2C_DEFAULT)
 			MX8MP_IOMUXC_I2C1_SDA__I2C1_SDA
-				MX8MP_I2C_DEFAULT
+				(MX8MP_DSE_X6 | MX8MP_I2C_DEFAULT)
 		>;
 	};
 
 	pinctrl_i2c1_gpio: i2c1-gpiogrp {
 		fsl,pins = <
 			MX8MP_IOMUXC_I2C1_SCL__GPIO5_IO14
-				MX8MP_I2C_DEFAULT
+				(MX8MP_DSE_X6 | MX8MP_I2C_DEFAULT)
 			MX8MP_IOMUXC_I2C1_SDA__GPIO5_IO15
-				MX8MP_I2C_DEFAULT
+				(MX8MP_DSE_X6 | MX8MP_I2C_DEFAULT)
 		>;
 	};