Thread (7 messages) 7 messages, 4 authors, 2025-02-24

Re: [PATCH v4 1/2] arm64: dts: mediatek: mt8395-genio-1200-evk: add support for TCPC port

From: Macpaul Lin (林智斌) <Macpaul.Lin@mediatek.com>
Date: 2025-02-21 11:39:32
Also in: linux-devicetree, linux-mediatek, linux-usb, lkml

On Thu, 2025-02-20 at 16:58 +0100, AngeloGioacchino Del Regno wrote:
[snip]
quoted
+             tcpc {
+                     compatible = "mediatek,mt6360-tcpc";
+                     interrupts-extended = <&pio 17
IRQ_TYPE_LEVEL_LOW>;
+                     interrupt-names = "PD_IRQB";
+
+                     connector {
+                             compatible = "usb-c-connector";
+                             label = "USB-C";
+                             data-role = "dual";
+                             op-sink-microwatt = <10000000>;
+                             power-role = "dual";
+                             try-power-role = "sink";
Would be appreciated if you could also complete the node by adding
the pd-revision
property, enabling full USBC Power Delivery for the MT6360 PMIC.
Well, I have no idea about the pd-revision of MT6360.
I could found MT6360 supports PD 3.0 according to the datasheet,
however, I have no idea about the other fields like major and minor
values. Dear ChiYuan, could you help to provide the value of pd-
revision? The property has been defined in 
Documentation/devicetree/bindings/connector/usb-connector.yaml.

Same for the alternate modes, adding the DP alt mode is a matter of
seconds... and
well, it does sound a bit weird to add alternate modes without a
mux... so, in this
case you can choose either to:
  - Squash the two commits (tcpc, it5205) and do everything in one;
or
  - Add the alternate mode node to the connector in the commit
introducing the mux.

Either of the two options is okay for me, so you choose.
quoted
Well, I could squash the two commits together and adding the DP alt
mode values in next version.
quoted
  &ssusb0 {
+     dr_mode = "otg";
+     pinctrl-names = "default";
+     pinctrl-0 = <&u3_p0_vbus>;
+     role-switch-default-mode = "peripheral";
There's no need for a default mode here, luckily the MediaTek MTU3
controllers
don't need that for real :-)
Okay, will drop it than.


Thanks.
Macpaul Lin
Drop please.

Cheers,
Angelo
  
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