arm64: dts: renesas: r8a77990: ebisu: Add I2C EEPROM for PMIC

Add a device node for the I2C EEPROM which serves as external storage
for the PMIC setup, as a backup of the internal OTP configuration.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/32443cd203ce2787d9a719d06a473b9e9cd508c2.1625489160.git.geert+renesas@glider.be

diff --git a/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts b/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
index 4d492da..df647de 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
+++ b/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
@@ -510,6 +510,12 @@
                rohm,ddr-backup-power = <0x1>;
                rohm,rstbmode-level;
        };
+
+       eeprom@50 {
+               compatible = "rohm,br24t01", "atmel,24c01";
+               reg = <0x50>;
+               pagesize = <8>;
+       };
 };
 
 &lvds0 {