linux-kernel - Re: [PATCH 10/10] ARM: dts: omap4: Use "syscon-otghs" instead of "ctrl-module" in USB node

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Date:	Wed, 5 Aug 2015 11:08:38 +0300
From:	Roger Quadros <rogerq@...com>
To:	Kishon Vijay Abraham I <kishon@...com>, <tony@...mide.com>,
	<t-kristo@...com>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org>,
	<linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
CC:	<balbi@...com>, <bcousson@...libre.com>, <linux@....linux.org.uk>,
	<nsekhar@...com>
Subject: Re: [PATCH 10/10] ARM: dts: omap4: Use "syscon-otghs" instead of
 "ctrl-module" in USB node

On 05/08/15 11:02, Roger Quadros wrote:
> Kishon,
> 
> On 04/08/15 18:30, Kishon Vijay Abraham I wrote:
>> Add "syscon-otghs" property and remove the deprecated "ctrl-module"
>> property from MUSB devicetree node.
>>
>> Since "omap_control_usbotg" devicetree node is no longer used, remove
>> it.
>>
>> Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
>> ---
>>  arch/arm/boot/dts/omap4.dtsi |    8 +-------
>>  1 file changed, 1 insertion(+), 7 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
>> index b27634d..2fb49a5 100644
>> --- a/arch/arm/boot/dts/omap4.dtsi
>> +++ b/arch/arm/boot/dts/omap4.dtsi
>> @@ -854,12 +854,6 @@
>>  			};
>>  		};
>>  
>> -		omap_control_usbotg: control-phy@...0233c {
>> -			compatible = "ti,control-phy-otghs";
>> -			reg = <0x4a00233c 0x4>;
>> -			reg-names = "otghs_control";
>> -		};
>> -
>>  		usb_otg_hs: usb_otg_hs@...ab000 {
>>  			compatible = "ti,omap4-musb";
>>  			reg = <0x4a0ab000 0x7ff>;
>> @@ -872,7 +866,7 @@
>>  			multipoint = <1>;
>>  			num-eps = <16>;
>>  			ram-bits = <12>;
>> -			ctrl-module = <&omap_control_usbotg>;
>> +			syscon-otghs = <&scm_conf 0x33c>;
> 
> All other properties were of the format "syscon-phy-foo".
> Why use a different format here?
> 

Ah, looks like we don't have a dedicated phy driver for this?
We will need to add a PHY driver I guess then and handle this register
in that driver rather than in the musb driver.

cheers,
-roger
> 
> 
>>  		};
>>  
>>  		aes: aes@...01000 {
>>
> --
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