linux-kernel - Re: [PATCH v3] drm/bridge/sii8620: fix dependency on extcon

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Message-ID: <75b35f2f-72bb-522a-afd8-6c26cd553588@infradead.org>
Date:   Fri, 14 May 2021 22:34:51 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Robert Foss <robert.foss@...aro.org>, a.hajda@...sung.com,
        narmstrong@...libre.com, Laurent.pinchart@...asonboard.com,
        jonas@...boo.se, jernej.skrabec@...l.net, airlied@...ux.ie,
        daniel@...ll.ch, cw00.choi@...sung.com, m.purski@...sung.com,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Masahiro Yamada <masahiroy@...nel.org>
Cc:     kernel test robot <lkp@...el.com>
Subject: Re: [PATCH v3] drm/bridge/sii8620: fix dependency on extcon

On 4/19/21 10:54 AM, Randy Dunlap wrote:
> On 4/19/21 10:10 AM, Randy Dunlap wrote:
>> On 4/19/21 2:01 AM, Robert Foss wrote:
>>> The DRM_SIL_SII8620 kconfig has a weak `imply` dependency
>>> on EXTCON, which causes issues when sii8620 is built
>>> as a builtin and EXTCON is built as a module.
>>>
>>> The symptoms are 'undefined reference' errors caused
>>> by the symbols in EXTCON not being available
>>> to the sii8620 driver.
>>>
>>> Fixes: 688838442147 ("drm/bridge/sii8620: use micro-USB cable detection logic to detect MHL")
>>> Signed-off-by: Robert Foss <robert.foss@...aro.org>
>>> Reported-by: kernel test robot <lkp@...el.com>
>>> ---
>>>
>>> LKP reported issue:
>>> https://lore.kernel.org/lkml/202104040604.SSTe2Cxf-lkp@intel.com/
>>>
>>>
>>> Changes since v1:
>>>  - Fix typo on comment
>>>
>>> Changes since v2:
>>>  - Randy: Changed from `depends` to `select` 
>>
>> I don't know why my name is on that. I didn't
>> suggest any change -- I just reported that v2
>> had a problem.
>>
>>
>>>
>>>
>>>  drivers/gpu/drm/bridge/Kconfig | 2 +-
>>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
>>> index 22a467abd3e9..70402da5cc70 100644
>>> --- a/drivers/gpu/drm/bridge/Kconfig
>>> +++ b/drivers/gpu/drm/bridge/Kconfig
>>> @@ -169,7 +169,7 @@ config DRM_SIL_SII8620
>>>  	tristate "Silicon Image SII8620 HDMI/MHL bridge"
>>>  	depends on OF
>>>  	select DRM_KMS_HELPER
>>> -	imply EXTCON
>>> +	select EXTCON
>>>  	depends on RC_CORE || !RC_CORE
>>>  	help
>>>  	  Silicon Image SII8620 HDMI/MHL bridge chip driver.
>>
>>
>> Thanks. Works For Me.
>>
>> Acked-by: Randy Dunlap <rdunlap@...radead.org> # build-tested
> 
> Actually I can upgrade that to:
> 
> Reviewed-by: Randy Dunlap <rdunlap@...radead.org>

Hi,
Is anyone merging this patch?

thanks.
-- 
~Randy