linux-kernel - Re: [PATCH v3 10/10] ARM: dts: da850: add usb device node

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Date:   Mon, 21 Nov 2016 11:27:49 +0100
From:   Axel Haslam <ahaslam@...libre.com>
To:     David Lechner <david@...hnology.com>
Cc:     Sekhar Nori <nsekhar@...com>, Kevin Hilman <khilman@...nel.org>,
        robh+dt@...nel.org, Alexandre Bailon <abailon@...libre.com>,
        Alan Stern <stern@...land.harvard.edu>,
        Greg KH <gregkh@...uxfoundation.org>,
        devicetree@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 10/10] ARM: dts: da850: add usb device node

On Mon, Nov 21, 2016 at 3:42 AM, David Lechner <david@...hnology.com> wrote:
> On 11/07/2016 02:39 PM, Axel Haslam wrote:
>>
>> This adds the ohci device node for the da850 soc.
>> It also enables it for the omapl138 hawk board.
>>
>> Signed-off-by: Axel Haslam <ahaslam@...libre.com>
>> ---
>>  arch/arm/boot/dts/da850-lcdk.dts | 8 ++++++++
>>  arch/arm/boot/dts/da850.dtsi     | 8 ++++++++
>>  2 files changed, 16 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/da850-lcdk.dts
>> b/arch/arm/boot/dts/da850-lcdk.dts
>> index 7b8ab21..aaf533e 100644
>> --- a/arch/arm/boot/dts/da850-lcdk.dts
>> +++ b/arch/arm/boot/dts/da850-lcdk.dts
>> @@ -86,6 +86,14 @@
>>         };
>>  };
>>
>> +&usb_phy {
>> +       status = "okay";
>> +};
>> +
>> +&ohci {
>> +       status = "okay";
>> +};
>> +
>>  &serial2 {
>>         pinctrl-names = "default";
>>         pinctrl-0 = <&serial2_rxtx_pins>;
>> diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
>> index 2534aab..50e86da 100644
>> --- a/arch/arm/boot/dts/da850.dtsi
>> +++ b/arch/arm/boot/dts/da850.dtsi
>> @@ -405,6 +405,14 @@
>>                                         >;
>>                         status = "disabled";
>>                 };
>> +               ohci: usb@...5000 {
>
>
> In commit 2957e36e76c836b167e5e0c1edb578d8a9bd7af6 in the linux-davinci
> tree, the alias for the musb device is usb0. So, I think we should use usb1
> here instead of ohci - or change the usb0 alias to musb.
>
> https://git.kernel.org/cgit/linux/kernel/git/nsekhar/linux-davinci.git/commit/?h=v4.10/dt&id=2957e36e76c836b167e5e0c1edb578d8a9bd7af6

ok, i will change to usb1, since i will be resubmiting this.

>
>> +                       compatible = "ti,da830-ohci";
>> +                       reg = <0x225000 0x1000>;
>> +                       interrupts = <59>;
>> +                       phys = <&usb_phy 1>;
>> +                       phy-names = "usb-phy";
>> +                       status = "disabled";
>> +               };
>>                 gpio: gpio@...000 {
>>                         compatible = "ti,dm6441-gpio";
>>                         gpio-controller;
>>
>