Hello!

I'd like to run the longterm branch of the kernel on my OrangePi Plus.
I'm upgrading from 4.9.12; I pulled a fresh copy of linux-stable
v4.9.55.

Commits from sun8i-emac-wip branch of
https://github.com/montjoie/linux/tree/ apply cleanly but fail to build
DTBs. I tried to update the DTS for the CCU driver:

---8<---
diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi
b/arch/arm/boot/dts/sun8i-h3.dtsi index f4ba088b225e..f58f75371757
100644 --- a/arch/arm/boot/dts/sun8i-h3.dtsi
+++ b/arch/arm/boot/dts/sun8i-h3.dtsi
@@ -530,6 +541,21 @@
                        #size-cells = <0>;
                };
 
+               emac: ethernet@1c30000 {
+                       compatible = "allwinner,sun8i-h3-emac";
+                       reg = <0x01c30000 0x104>, <0x01c00030 0x4>;
+                       reg-names = "emac", "syscon";
+                       interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
+               //      resets = <&ahb_rst 17>, <&ahb_rst 66>;
+                       resets = <&ccu RST_BUS_EMAC>, <&ccu RST_BUS_EPHY>;
+                       reset-names = "ahb", "ephy";
+                       clocks = <&ccu CLK_BUS_EMAC>, <&ccu CLK_BUS_EPHY>;
+                       clock-names = "ahb", "ephy";
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       status = "disabled";
+               };
+
                gic: interrupt-controller@01c81000 {
                        compatible = "arm,cortex-a7-gic", "arm,cortex-a15-gic"; 
reg = <0x01c81000 0x1000>, ---8<---

The kernel booted, found the networking interface but corrupted packets
(the device obtained the address via DHCP successfully and could show a
short static web page, but any SSH or HTTPS or a long unencrypted
transfer resulted in corrupted data).

Commits from the sun8i-emac-v5.1 branch don't apply as cleanly, but
mostly complain about missing dts files for newer devices and lack of
context in arch/arm/configs/multi_v7_defconfig. DTBs fail to build,
this time with the message "Label or path mdio(or emac) not found"
because v4.9.54 misses arch/arm/boot/dts/sunxi-h3-h5.dtsi. Once I
downloaded it and put an #include "sunxi-h3-h5.dtsi" in sun8i-h3.dtsi,
I was able to build DTBs again, but the driver still doesn't like the
device tree:

---8<---
sun8i-h3-pinctrl 1c20800.pinctrl: missing allwinner,function property in node 
emac0
sun8i-emac: probe of 1c30000.ethernet failed with error -22
---8<---

Of course, I'm probably TRWTF because I'm trying to use an unsupported
driver. Still, can someone direct me to possible ways of running
sun8i-emac on v4.9.55?

-- 
Best regards,
Ivan

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