ARM: dts: rockchip: add hym8563 rtc to Radxa Rock board

The Radxa Rock uses a hym8563 as rtc. Add the i2c device and necessary
pinconfig for the interrupt pin - labeled rtc_int in the schematics.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm/boot/dts/rk3188-radxarock.dts b/arch/arm/boot/dts/rk3188-radxarock.dts
index ef72faf9059a8748a31e35c4dc7e5df0b657484d..ff35acfa8ae7ffe0689fa90adba8cda14a964436 100644 (file)
--- a/arch/arm/boot/dts/rk3188-radxarock.dts
+++ b/arch/arm/boot/dts/rk3188-radxarock.dts
@@ -80,6 +80,17 @@
        status = "okay";
        clock-frequency = <400000>;
 
+       rtc@51 {
+               compatible = "haoyu,hym8563";
+               reg = <0x51>;
+               interrupt-parent = <&gpio0>;
+               interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&rtc_int>;
+               #clock-cells = <0>;
+               clock-output-names = "xin32k";
+       };
+
        act8846: act8846@5a {
                compatible = "active-semi,act8846";
                reg = <0x5a>;
@@ -196,6 +207,12 @@
                };
        };
 
+       hym8563 {
+               rtc_int: rtc-int {
+                       rockchip,pins = <RK_GPIO0 0 RK_FUNC_GPIO &pcfg_pull_up>;
+               };
+       };
+
        ir-receiver {
                ir_recv_pin: ir-recv-pin {
                        rockchip,pins = <RK_GPIO0 10 RK_FUNC_GPIO &pcfg_pull_none>;