arm64: dts: imx8mm-verdin: comment about i2c level shifter

Add a note about the bootloader being expected to switch on the I2C
level shifter for the TLA2024 ADC behind this PMIC.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
index 599b620..4542c99 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
@@ -337,6 +337,11 @@
                reg = <0x25>;
                sd-vsel-gpios = <&gpio1 4 GPIO_ACTIVE_HIGH>;
 
+               /*
+                * The bootloader is expected to switch on the I2C level shifter for the TLA2024 ADC
+                * behind this PMIC.
+                */
+
                regulators {
                        reg_vdd_soc: BUCK1 {
                                nxp,dvs-run-voltage = <850000>;