linux-kernel - Re: [PATCH] phy: meson-usb2: Fix build dependency

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Date:   Tue, 20 Sep 2016 22:11:12 -0700
From:   Kevin Hilman <khilman@...libre.com>
To:     Axel Lin <axel.lin@...ics.com>
Cc:     Kishon Vijay Abraham I <kishon@...com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-amlogic <linux-amlogic@...ts.infradead.org>
Subject: Re: [PATCH] phy: meson-usb2: Fix build dependency

On Tue, Sep 20, 2016 at 9:13 PM, Axel Lin <axel.lin@...ics.com> wrote:
> 2016-09-21 12:06 GMT+08:00 Kishon Vijay Abraham I <kishon@...com>:
>>
>>
>> On Monday 19 September 2016 10:14 PM, Kevin Hilman wrote:
>>> Martin Blumenstingl <martin.blumenstingl@...glemail.com> writes:
>>>
>>>> Hi Axel,
>>>>
>>>> On Fri, Sep 16, 2016 at 4:07 AM, Axel Lin <axel.lin@...ics.com> wrote:
>>>>> of_usb_get_dr_mode_by_phy will not be compiled if !USB_COMMON, fix below
>>>>> build error:
>>>>>
>>>>> drivers/built-in.o: In function `phy_meson_usb2_probe':
>>>>> debugfs.c:(.text+0x76b4): undefined reference to `of_usb_get_dr_mode_by_phy'
>>>>> Makefile:961: recipe for target 'vmlinux' failed
>>>>> make: *** [vmlinux] Error 1
>>>>>
>>>>> Signed-off-by: Axel Lin <axel.lin@...ics.com>
>>>>> ---
>>>>>  drivers/phy/Kconfig | 2 ++
>>>>>  1 file changed, 2 insertions(+)
>>>>>
>>>>> diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
>>>>> index 6ad87ec..cc27c12 100644
>>>>> --- a/drivers/phy/Kconfig
>>>>> +++ b/drivers/phy/Kconfig
>>>>> @@ -458,6 +458,8 @@ config PHY_MESON_USB2
>>>>>         tristate "Meson USB2 PHY driver"
>>>>>         default ARCH_MESON
>>>>>         depends on OF && (ARCH_MESON || COMPILE_TEST)
>>>>> +       depends on USB_SUPPORT
>>>>> +       select USB_COMMON
>>>>>         select GENERIC_PHY
>>>>>         help
>>>>>           Enable this to support the Meson USB2 PHYs found in Meson8b
>>>>> --
>>>>> 2.7.4
>>>>>
>>>> thanks for this patch!
>>>>
>>>> How do we handle patches for drivers which will (unfortunately) not
>>>> land in the linux 4.8 - should I integrate that into v3 of the patch
>>>> (which I'll have to send anyways) or do we keep them separate?
>>>> Maybe Kishon and/or Kevin can share their opinion on this.
>>
>> Since you are anyways planning to send v3, merge this patch too.
>
> I got confused why this driver appears in linux-next but it's not from phy
> tree? I thought it's because other dependency so it needs to go via other tree,
> but looks like not the case. And the driver does not get Kishon's Ack?

That was my fault, it got (mistakenly) included in the branch I submit
to linux-next for the amlogic SoC support.

Kevin