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: <3bd6191c-caa4-15a8-92ad-17a07ec085e2@kernel.org>
Date:   Tue, 28 Mar 2023 16:20:31 +0300
From:   Roger Quadros <rogerq@...nel.org>
To:     Nishanth Menon <nm@...com>
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 28/03/2023 16:18, Nishanth Menon wrote:
> 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 ?

moved it to sk-lp. see above in this patch.

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

cheers,
-roger