linux-kernel - Re: [PATCH] usb: phy: add USB

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Date:   Thu, 8 Sep 2016 19:07:32 +0530
From:   Kishon Vijay Abraham I <kishon@...com>
To:     Hans de Goede <hdegoede@...hat.com>, Arnd Bergmann <arnd@...db.de>
CC:     <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] usb: phy: add USB_SUPPORT dependency



On Wednesday 07 September 2016 03:01 PM, Hans de Goede wrote:
> Hi,
> 
> On 06-09-16 14:54, Arnd Bergmann wrote:
>> The driver now calls of_usb_get_dr_mode_by_phy, which is part of the
>> USB core layer, and it fails to build when that is not provided:
>>
>> drivers/phy/phy-sun4i-usb.o: In function `sun4i_usb_phy_probe':
>> phy-sun4i-usb.c:(.text.sun4i_usb_phy_probe+0x140): undefined reference to
>> `of_usb_get_dr_mode_by_phy'
>>
>> We already have a couple of other PHY drivers with a dependency
>> on USB_SUPPORT, so that seems to be the easiest fix here.
>>
>> An alternative would be to adjust the #ifdef in include/linux/usb/of.h
>> to also check for CONFIG_USB_SUPPORT.
>>
>> Signed-off-by: Arnd Bergmann <arnd@...db.de>
>> Fixes: b33ecca87df9 ("phy-sun4i-usb: Add support for peripheral-only mode")
> 
> Good catch, patch LGTM:
> 
> Reviewed-by: Hans de Goede <hdegoede@...hat.com>

merged, thanks.

-Kishon
> 
> Regards,
> 
> Hans
> 
> 
> 
>> ---
>>  drivers/phy/Kconfig | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
>> index c42ddf3c8ed8..985dff8558e5 100644
>> --- a/drivers/phy/Kconfig
>> +++ b/drivers/phy/Kconfig
>> @@ -260,6 +260,7 @@ config PHY_SUN4I_USB
>>      depends on RESET_CONTROLLER
>>      depends on EXTCON
>>      depends on POWER_SUPPLY
>> +    depends on USB_SUPPORT
>>      select GENERIC_PHY
>>      help
>>        Enable this to support the transceiver that is part of Allwinner
>>