The R40 has an RTC hardware block, which has additional registers
that are not related to RTC or clock functions, and is otherwise
compatible with the H3's RTC.

Add a device node for it, and fix up any references to the LOSC.

Signed-off-by: Chen-Yu Tsai <[email protected]>
---
 arch/arm/boot/dts/sun8i-r40.dtsi | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
index a8917f8b1c80..89762dbefe42 100644
--- a/arch/arm/boot/dts/sun8i-r40.dtsi
+++ b/arch/arm/boot/dts/sun8i-r40.dtsi
@@ -70,7 +70,7 @@
                        compatible = "fixed-clock";
                        clock-frequency = <32768>;
                        clock-accuracy = <20000>;
-                       clock-output-names = "osc32k";
+                       clock-output-names = "ext-osc32k";
                };
        };
 
@@ -315,17 +315,27 @@
                ccu: clock@1c20000 {
                        compatible = "allwinner,sun8i-r40-ccu";
                        reg = <0x01c20000 0x400>;
-                       clocks = <&osc24M>, <&osc32k>;
+                       clocks = <&osc24M>, <&rtc 0>;
                        clock-names = "hosc", "losc";
                        #clock-cells = <1>;
                        #reset-cells = <1>;
                };
 
+               rtc: rtc@1c20400 {
+                       compatible = "allwinner,sun8i-r40-rtc",
+                                    "allwinner,sun8i-h3-rtc";
+                       reg = <0x01c20400 0x400>;
+                       interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
+                       clock-output-names = "osc32k", "osc32k-out";
+                       clocks = <&osc32k>;
+                       #clock-cells = <1>;
+               };
+
                pio: pinctrl@1c20800 {
                        compatible = "allwinner,sun8i-r40-pinctrl";
                        reg = <0x01c20800 0x400>;
                        interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
-                       clocks = <&ccu CLK_BUS_PIO>, <&osc24M>, <&osc32k>;
+                       clocks = <&ccu CLK_BUS_PIO>, <&osc24M>, <&rtc 0>;
                        clock-names = "apb", "hosc", "losc";
                        gpio-controller;
                        interrupt-controller;
-- 
2.20.0.rc1

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