linux-kernel - Re: [PATCH v2 2/2] arm64: dts: ti: k3-am625-sk: Enable Type-C port for USB0

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Message-ID: <20230328131810.x2j6uvwzhniclvwf@evoke>
Date:   Tue, 28 Mar 2023 08:18:10 -0500
From:   Nishanth Menon <nm@...com>
To:     Roger Quadros <rogerq@...nel.org>
CC:     <vigneshr@...com>, <kristo@...nel.org>, <srk@...com>,
        <r-gunasekaran@...com>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH v2 2/2] arm64: dts: ti: k3-am625-sk: Enable Type-C port
 for USB0

On 15:43-20230328, Roger Quadros wrote:
> USB0 is a Type-C port with dual data role and power sink.
> 
> Signed-off-by: Roger Quadros <rogerq@...nel.org>
> ---
>  arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts      |  4 ++
>  arch/arm64/boot/dts/ti/k3-am625-sk.dts        | 44 ++++++++++++++++++-
>  .../arm64/boot/dts/ti/k3-am62x-sk-common.dtsi |  4 --
>  3 files changed, 47 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts b/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts
> index b2ca19e3042e..a3c3609833fd 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts
> @@ -225,3 +225,7 @@ ldo4_reg: ldo4 {
>  		};
>  	};
>  };
> +
> +&usb0 {
> +	dr_mode = "peripheral";
> +};
> diff --git a/arch/arm64/boot/dts/ti/k3-am625-sk.dts b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
> index cdc0858dd1b2..13fdaa9ce4e7 100644
> --- a/arch/arm64/boot/dts/ti/k3-am625-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
> @@ -136,6 +136,35 @@ AM62X_IOPAD(0x01d4, PIN_INPUT, 7) /* (B15) UART0_RTSn.GPIO1_23 */
>  	};
>  };
>  
> +&main_i2c0 {
> +	typec_pd: tps6598x@3f {
> +		compatible = "ti,tps6598x";
> +		reg = <0x3f>;
> +		interrupt-parent = <&exp1>;
> +		interrupts = <17 IRQ_TYPE_EDGE_FALLING>;
> +		interrupt-names = "irq";
> +
> +		connector {
> +			compatible = "usb-c-connector";
> +			label = "USB-C";
> +			self-powered;
> +			data-role = "dual";
> +			power-role = "sink";
> +			ports {
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +
> +				port@0 {
> +					reg = <0>;
> +					usb_con_hs: endpoint {
> +						remote-endpoint = <&usb0_hs_ep>;
> +					};
> +				};
> +			};
> +		};
> +	};
> +};
> +
>  &main_i2c1 {
>  	exp1: gpio@22 {
>  		compatible = "ti,tca6424";
> @@ -150,7 +179,7 @@ exp1: gpio@22 {
>  				   "UART1_FET_BUF_EN", "WL_LT_EN",
>  				   "GPIO_HDMI_RSTn", "CSI_GPIO1",
>  				   "CSI_GPIO2", "PRU_3V3_EN",
> -				   "HDMI_INTn", "TEST_GPIO2",
> +				   "HDMI_INTn", "PD_I2C_IRQ",
>  				   "MCASP1_FET_EN", "MCASP1_BUF_BT_EN",
>  				   "MCASP1_FET_SEL", "UART1_FET_SEL",
>  				   "TSINT#", "IO_EXP_TEST_LED";
> @@ -256,3 +285,16 @@ partition@...0000 {
>  		};
>  	};
>  };
> +
> +&usb0 {
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +	usb-role-switch;
> +
> +	port@0 {
> +		reg = <0>;
> +		usb0_hs_ep: endpoint {
> +		    remote-endpoint = <&usb_con_hs>;
> +	       };
> +	};
> +};
> diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
> index 80e8b9b9a5f5..e3223088b90c 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
> @@ -264,10 +264,6 @@ &usbss1 {
>  	ti,vbus-divider;
>  };
>  
> -&usb0 {
> -	dr_mode = "peripheral";
> -};
> -

	How about sk-lp ?

>  &usb1 {
>  	dr_mode = "host";
>  	pinctrl-names = "default";
> -- 
> 2.34.1
> 

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D