ARM: dts: ti/omap: omap4-epson-embt2ws: add charger

Add charger and battery definition for the Epson Moverio BT-200 to make
charging working.

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Link: https://lore.kernel.org/r/20241019111121.331477-1-andreas@kemnade.info
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

diff --git a/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts b/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts
index 6bc8c0397c29c68900cc863237af156979b3492d..c90f43cc2fae9c650442b7eb6e3b1587b0aa706a 100644 (file)
--- a/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts
+++ b/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts
@@ -17,6 +17,24 @@
                reg = <0x80000000 0x40000000>; /* 1024M */
        };
 
+       battery: battery {
+               compatible = "simple-battery";
+               device-chemistry = "lithium-ion";
+               charge-full-design-microamp-hours = <2720000>;
+               voltage-max-design-microvolt = <4200000>;
+               voltage-min-design-microvolt = <3300000>;
+
+               constant-charge-voltage-max-microvolt = <4200000>;
+               /*
+                * vendor kernel says max charge 1400000, input limit 900000
+                * and charges only with dcp chargers. So it is unclear what
+                * is really allowed. Play safe for now and restrict things
+                * here. Maybe 900000 is just the limit of the vendor charger?
+                */
+               constant-charge-current-max-microamp = <900000>;
+               charge-term-current-microamp = <200000>;
+       };
+
        backlight-left {
                compatible = "pwm-backlight";
                pwms = <&twl_pwm 1 7812500>;
@@ -198,6 +216,14 @@
                #interrupt-cells = <1>;
                system-power-controller;
 
+               charger {
+                       compatible = "ti,twl6032-charger", "ti,twl6030-charger";
+                       interrupts = <2>, <5>;
+                       io-channels = <&gpadc 10>;
+                       io-channel-names = "vusb";
+                       monitored-battery = <&battery>;
+               };
+
                rtc {
                        compatible = "ti,twl4030-rtc";
                        interrupts = <11>;
@@ -277,7 +303,7 @@
                        #pwm-cells = <2>;
                };
 
-               gpadc {
+               gpadc: gpadc {
                        compatible = "ti,twl6032-gpadc";
                        interrupts = <3>;
                        #io-channel-cells = <1>;