linux-kernel - Re: [PATCH v4 4/4] ARM: dts: da850: Add the usb otg device node

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Message-ID: <d2050c80-255e-25d6-99ba-7634f2c7e39a@baylibre.com>
Date:   Wed, 16 Nov 2016 11:35:59 +0100
From:   Alexandre Bailon <abailon@...libre.com>
To:     Sekhar Nori <nsekhar@...com>, khilman@...libre.com,
        robh+dt@...nel.org, b-liu@...com
Cc:     linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4 4/4] ARM: dts: da850: Add the usb otg device node

On 11/15/2016 11:46 AM, Sekhar Nori wrote:
> On Thursday 03 November 2016 09:29 PM, Alexandre Bailon wrote:
>> This adds the device tree node for the usb otg
>> controller present in the da850 family of SoC's.
>> This also enables the otg usb controller for the lcdk board.
>>
>> Signed-off-by: Alexandre Bailon <abailon@...libre.com>
>> ---
>>  arch/arm/boot/dts/da850-lcdk.dts |  8 ++++++++
>>  arch/arm/boot/dts/da850.dtsi     | 15 +++++++++++++++
>>  2 files changed, 23 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/da850-lcdk.dts b/arch/arm/boot/dts/da850-lcdk.dts
>> index 7b8ab21..9f5040c 100644
>> --- a/arch/arm/boot/dts/da850-lcdk.dts
>> +++ b/arch/arm/boot/dts/da850-lcdk.dts
>> @@ -158,6 +158,14 @@
>>  	rx-num-evt = <32>;
>>  };
>>  
>> +&usb_phy {
>> +	status = "okay";
>> +	};
> 
> As mentioned by David already, this node needs to be removed. Please
I have missed it. But why should I remove it?
Without it, usb otg won't work.
> rebase this on top of latest linux-davinci/master when ready for merging
> (driver changes accepted).
> 
>> +
>> +&usb0 {
>> +	status = "okay";
>> +};
>> +
>>  &aemif {
>>  	pinctrl-names = "default";
>>  	pinctrl-0 = <&nand_pins>;
>> diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
>> index f79e1b9..322a31a 100644
>> --- a/arch/arm/boot/dts/da850.dtsi
>> +++ b/arch/arm/boot/dts/da850.dtsi
>> @@ -372,6 +372,21 @@
>>  					>;
>>  			status = "disabled";
>>  		};
>> +		usb_phy: usb-phy {
>> +			compatible = "ti,da830-usb-phy";
>> +			#phy-cells = <1>;
>> +			status = "disabled";
>> +		};
>> +		usb0: usb@...000 {
>> +			compatible = "ti,da830-musb";
>> +			reg = <0x200000 0x10000>;
>> +			interrupts = <58>;
>> +			interrupt-names = "mc";
>> +			dr_mode = "otg";
>> +			phys = <&usb_phy 0>;
>> +			phy-names = "usb-phy";
>> +			status = "disabled";
>> +		};
> 
> Can you separate out the soc specific changes from board changes? Please
> place the usb0 node above the mdio node. I am trying to get to a rough
> ordering based on reg property.
I will do.
> 
> Thanks,
> Sekhar
> 

Thanks,
Alexandre