arm64: dts: ti: k3-am642-phyboard-electra-rdk: Enable trickle charger

Be default, R511 iand D19 are not populated on our phyBOARD-Electra.
This resistor and diode connect VCC_3V3_SW with VBAT and permanently
charge the RTC battery.

Enable trickle charge to charge the battery through the RTC.

Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Link: https://lore.kernel.org/r/20240911124251.702590-3-w.egorov@phytec.de
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

diff --git a/arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-rdk.dts b/arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-rdk.dts
index 73b8df86b16bab1fe782997ca2b683e3d661574a..bc8e1ce11047bbbcf64d0cdac620efaaf3973a7f 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-rdk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-rdk.dts
@@ -344,6 +344,10 @@
        };
 };
 
+&i2c_som_rtc {
+       trickle-resistor-ohms = <3000>;
+};
+
 &main_i2c1 {
        status = "okay";
        pinctrl-names = "default";