2270332_zh-CN

[#1]

i.MX8MP 添加 HD3SS3220 Type-C 导致 LAN 唤醒失败

我正在开发 6.12.34 内核并修改内核设备树 imx8mp-evk.dts。

nxp-imx/imx-Manifest：i.MX 版本清单 (imx-linux-wal nascar)

当按如下方式在设备树中添加 hd3s3220 type-c 控制器时，WOL 失败了。

/{
connector {
		compatible = "usb-c-connector";
		label = "USB-C";
		data-role = "dual";
		status = "disabled";

		ports {
			#address-cells = <1>;
			#size-cells = <0>;

			port@0 {
				reg = <0>;

				hs_ep: endpoint {
					remote-endpoint = <&usb3_hs_ep>;
				};
			};
			port@1 {
				reg = <1>;

				ss_ep: endpoint {
					remote-endpoint = <&hd3ss3220_in_ep>;
				};
			};
		};
	};
};

&iomux {
pinctrl_hd3ss3220: hd3ss3220grp {
		fsl,pins = <
			MX8MP_IOMUXC_ECSPI2_MISO__GPIO5_IO12	0x140
		>;
	};
};

&i2c2 {
clock-frequency = <400000>;
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_i2c2>;
	status = "okay";
hd3ss3220@67 {
		compatible = "ti,hd3ss3220";
		reg = <0x67>;
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_hd3ss3220>;
		interrupt-parent = <&gpio5>;
		interrupts = <12 IRQ_TYPE_LEVEL_LOW>;

		ports {
			#address-cells = <1>;
			#size-cells = <0>;

			port@0 {
				reg = <0>;

				hd3ss3220_in_ep: endpoint {
					remote-endpoint = <&ss_ep>;
				};
 			};
			port@1 {
				reg = <1>;

				hd3ss3220_out_ep: endpoint {
					remote-endpoint = <&usb3_role_switch>;
				};
 			};
 		};
	};
};

&usb_dwc3_1 {
	dr_mode = "otg";
	hnp-disable;
	srp-disable;
	adp-disable;
	usb-role-switch;
	status = "okay";

	ports {
		#address-cells = <1>;
		#size-cells = <0>;

		port@0 {
			reg = <0>;
			usb3_hs_ep: endpoint {
				remote-endpoint = <&hs_ep>;
			};
		};
		port@1 {
			reg = <1>;
			usb3_role_switch: endpoint {
				remote-endpoint = <&hd3ss3220_out_ep>;
			};
		};
	};
};

调用挂起命令后，WOL 功能失败。

根据我的检查，唤醒功能是受支持的

root@imx8mpevk:~# ethtool -s eth0 wol g
root@imx8mpevk:~# ethtool eth0
Settings for eth0:
        Supported ports: [ TP    MII ]
        Supported link modes:   10baseT/Full
                                100baseT/Full
                                1000baseT/Full
        Supported pause frame use: Symmetric Receive-only
        Supports auto-negotiation: Yes
        Supported FEC modes: Not reported
        Advertised link modes:  10baseT/Full
                                100baseT/Full
                                1000baseT/Full
        Advertised pause frame use: Symmetric Receive-only
        Advertised auto-negotiation: Yes
        Advertised FEC modes: Not reported
        Link partner advertised link modes:  10baseT/Half 10baseT/Full
                                             100baseT/Half 100baseT/Full
                                             1000baseT/Full
        Link partner advertised pause frame use: Symmetric
        Link partner advertised auto-negotiation: Yes
        Link partner advertised FEC modes: Not reported
        Speed: 1000Mb/s
        Duplex: Full
        Auto-negotiation: on
        master-slave cfg: preferred slave
        master-slave status: slave
        Port: Twisted Pair
        PHYAD: 1
        Transceiver: external
        MDI-X: Unknown
        Supports Wake-on: ug
        Wake-on: g
        Current message level: 0x0000003f (63)
                               drv probe link timer ifdown ifup
        Link detected: yes

root@imx8mpevk:~# dmesg | grep -i wake
[    3.148381] imx-dwmac 30bf0000.ethernet: Wake-Up On Lan supported
[   13.933830] stmmac: wakeup enable
root@imx8mpevk:~# cat /sys/class/net/eth0/device/power/wakeup
enabled

但是 6.6.52 内核（imx-linux- scarthgap）上同样的设备树设置效果很好！！

谁能帮帮我？

i.MX 8 系列 | i.MX 8QuadMax (8QM) | 8QuadPlusLinuxRe: i.MX8MP adding HD3SS3220 Type-C cause Wake on LAN failed

你好，

请尝试在 dts 中使用IRQ_TYPE_EDGE_FALLING。

致敬，
Zhiming

Re: i.MX8MP adding HD3SS3220 Type-C cause Wake on LAN failed

虽然将中断信号改为"IRQ_TYPE_EDGE_FALLING" ，但唤醒功能仍然不起作用。

目前，通过以下设置，唤醒功能运行良好。

/ {
    connector {
		compatible = "usb-c-connector";
		label = "USB-C";
		data-role = "dual";
		status = "disabled";

		ports {
			#address-cells = <1>;
			#size-cells = <0>;

			port@0 {
				reg = <0>;

				hs_ep: endpoint {
					remote-endpoint = <&usb3_hs_ep>;
				};
			};
			port@1 {
				reg = <1>;

				ss_ep: endpoint {
					remote-endpoint = <&hd3ss3220_in_ep>;
				};
			};
		};
	};
};

&i2c2 {
	clock-frequency = <400000>;
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_i2c2>;
	status = "okay";

	hd3ss3220@67 {
		compatible = "ti,hd3ss3220";
		reg = <0x67>;
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_hd3ss3220>;
		interrupt-parent = <&gpio5>;
		interrupts = <12 IRQ_TYPE_LEVEL_LOW>;
		wakeup-source;

		ports {
			#address-cells = <1>;
			#size-cells = <0>;

			port@0 {
				reg = <0>;

				hd3ss3220_in_ep: endpoint {
					remote-endpoint = <&ss_ep>;
				};
 			};
			port@1 {
				reg = <1>;

				hd3ss3220_out_ep: endpoint {
					remote-endpoint = <&usb3_role_switch>;
				};
 			};
 		};
	};
};

&iomux {
    pinctrl_hd3ss3220: hd3ss3220grp {
		fsl,pins = <
			MX8MP_IOMUXC_ECSPI2_MISO__GPIO5_IO12	0x140 // USB_SW_INTn (AH20)
		>;
	};
};

&usb3_phy1 {
	fsl,phy-tx-preemp-amp-tune-microamp = <1800>;
	fsl,phy-tx-vref-tune-percent = <116>;
	status = "okay";
};

&usb3_1 {
	status = "okay";
};

&usb_dwc3_1 {
	dr_mode = "otg";
	hnp-disable;
	srp-disable;
	adp-disable;
	usb-role-switch;
	role-switch-default-mode = "host";
	snps,dis-u1-entry-quirk;
	snps,dis-u2-entry-quirk;
	status = "okay";

	ports {
		#address-cells = <1>;
		#size-cells = <0>;

		port@0 {
			reg = <0>;
			usb3_hs_ep: endpoint {
				remote-endpoint = <&hs_ep>;
			};
		};
		port@1 {
			reg = <1>;
			usb3_role_switch: endpoint {
				remote-endpoint = <&hd3ss3220_out_ep>;
			};
		};
	};
};

但如你所见，连接器的状态被设置为"disabled" ，这是为什么呢？

删除这一行后，唤醒功能就失效了。

Re: i.MX8MP adding HD3SS3220 Type-C cause Wake on LAN failed

嗨 @AlanWen

我个人认为，这个问题可能与内核通用元器件的升级有关，不应归因于 i.MX 相关的驱动程序。由于我没有相同的硬件平台，所以无法准确找出问题所在。

致敬，
Zhiming

Re: i.MX8MP adding HD3SS3220 Type-C cause Wake on LAN failed

但在 6.6.52 内核版本中，使用相同的设置，在没有连接器状态行的情况下，唤醒功能也能正常工作。

如下所示：

/ {
    connector {
		compatible = "usb-c-connector";
		label = "USB-C";
		data-role = "dual";

		ports {
			#address-cells = <1>;
			#size-cells = <0>;

			port@0 {
				reg = <0>;

				hs_ep: endpoint {
					remote-endpoint = <&usb3_hs_ep>;
				};
			};
			port@1 {
				reg = <1>;

				ss_ep: endpoint {
					remote-endpoint = <&hd3ss3220_in_ep>;
				};
			};
		};
	};
};

&i2c2 {
	clock-frequency = <400000>;
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_i2c2>;
	status = "okay";

	hd3ss3220@67 {
		compatible = "ti,hd3ss3220";
		reg = <0x67>;
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_hd3ss3220>;
		interrupt-parent = <&gpio5>;
		interrupts = <12 IRQ_TYPE_LEVEL_LOW>;
		wakeup-source;

		ports {
			#address-cells = <1>;
			#size-cells = <0>;

			port@0 {
				reg = <0>;

				hd3ss3220_in_ep: endpoint {
					remote-endpoint = <&ss_ep>;
				};
 			};
			port@1 {
				reg = <1>;

				hd3ss3220_out_ep: endpoint {
					remote-endpoint = <&usb3_role_switch>;
				};
 			};
 		};
	};
};

&iomux {
    pinctrl_hd3ss3220: hd3ss3220grp {
		fsl,pins = <
			MX8MP_IOMUXC_ECSPI2_MISO__GPIO5_IO12	0x140 // USB_SW_INTn (AH20)
		>;
	};
};

&usb3_phy1 {
	fsl,phy-tx-preemp-amp-tune-microamp = <1800>;
	fsl,phy-tx-vref-tune-percent = <116>;
	status = "okay";
};

&usb3_1 {
	status = "okay";
};

&usb_dwc3_1 {
	dr_mode = "otg";
	hnp-disable;
	srp-disable;
	adp-disable;
	usb-role-switch;
	role-switch-default-mode = "host";
	snps,dis-u1-entry-quirk;
	snps,dis-u2-entry-quirk;
	status = "okay";

	ports {
		#address-cells = <1>;
		#size-cells = <0>;

		port@0 {
			reg = <0>;
			usb3_hs_ep: endpoint {
				remote-endpoint = <&hs_ep>;
			};
		};
		port@1 {
			reg = <1>;
			usb3_role_switch: endpoint {
				remote-endpoint = <&hd3ss3220_out_ep>;
			};
		};
	};
};