Re: [PATCH v3 net-next 1/8] arm64: dts: mediatek: mt7986: add support for RX Wireless Ethernet Dispatch

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Il 03/11/22 10:28, Lorenzo Bianconi ha scritto:
Similar to TX Wireless Ethernet Dispatch, introduce RX Wireless Ethernet
Dispatch to offload traffic received by the wlan interface to lan/wan
one.

Co-developed-by: Sujuan Chen <sujuan.chen@xxxxxxxxxxxx>
Signed-off-by: Sujuan Chen <sujuan.chen@xxxxxxxxxxxx>
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>

Hello Lorenzo,
thanks for the patch! However, there's something to improve...

---
  arch/arm64/boot/dts/mediatek/mt7986a.dtsi | 75 +++++++++++++++++++++++
  1 file changed, 75 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
index 72e0d9722e07..b0a593c6020e 100644
--- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi

..snip..

@@ -226,6 +252,12 @@ ethsys: syscon@15000000 {
  			 reg = <0 0x15000000 0 0x1000>;
  			 #clock-cells = <1>;
  			 #reset-cells = <1>;
+
+			ethsysrst: reset-controller {

That's not right. It works, yes, but your ethsys rightfully declares #reset-cells,
because it is supposed to also be a reset controller (even though I don't see any
reset controller registering action in clk-mt7986-eth.c).

Please document the ethernet reset in the appropriate dt-bindings header and
register the reset controller in clk-mt7986-eth.c.

Finally, you won't need any "ti,syscon-reset" node, and resets will look like

	resets = <&ethsys MT7986_ETHSYS_SOMETHING_SWRST>;

If you need any hint about how to do that, please check clk-mt8195-infra_ao.c.

Regards,
Angelo




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