linux-kernel - Re: [PATCH 1/2] media: Revert "media: exynos4-is: Add missed check for pinctrl_lookup

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Message-ID: <9b240ddb-0d03-5d51-386d-fce100a70aed@xs4all.nl>
Date:   Wed, 19 Aug 2020 15:26:19 +0200
From:   Hans Verkuil <hverkuil@...all.nl>
To:     Sylwester Nawrocki <s.nawrocki@...sung.com>,
        linux-media@...r.kernel.org
Cc:     hslester96@...il.com, krzk@...nel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        b.zolnierkie@...sung.com, m.szyprowski@...sung.com
Subject: Re: [PATCH 1/2] media: Revert "media: exynos4-is: Add missed check
 for pinctrl_lookup_state()"

On 19/08/2020 15:15, Hans Verkuil wrote:
> Hi Sylwester,
> 
> Can you rebase this patch series on top of the media_tree master?
> 
> This series didn't apply anymore.

Never mind, it was a conflict between this patch and this one:

https://patchwork.linuxtv.org/project/linux-media/patch/20200807083548.204360-2-dwlsalmeida@gmail.com/

I'll fix this up myself.

Regards,

	Hans

> 
> Thanks!
> 
> 	Hans
> 
> On 10/08/2020 17:32, Sylwester Nawrocki wrote:
>> The "idle" pinctrl state is optional as documented in the DT binding.
>> The change introduced by the commit being reverted makes that pinctrl state
>> mandatory and breaks initialization of the whole media driver, since the
>> "idle" state is not specified in any mainline dts.
>>
>> This reverts commit 18ffec750578f7447c288647d7282c7d12b1d969 to fix
>> the regression.
>>
>> Signed-off-by: Sylwester Nawrocki <s.nawrocki@...sung.com>
>> ---
>>  drivers/media/platform/exynos4-is/media-dev.c | 4 +---
>>  1 file changed, 1 insertion(+), 3 deletions(-)
>>
>> diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c
>> index 16dd660..9a57523 100644
>> --- a/drivers/media/platform/exynos4-is/media-dev.c
>> +++ b/drivers/media/platform/exynos4-is/media-dev.c
>> @@ -1268,11 +1268,9 @@ static int fimc_md_get_pinctrl(struct fimc_md *fmd)
>>  	if (IS_ERR(pctl->state_default))
>>  		return PTR_ERR(pctl->state_default);
>>  
>> +	/* PINCTRL_STATE_IDLE is optional */
>>  	pctl->state_idle = pinctrl_lookup_state(pctl->pinctrl,
>>  					PINCTRL_STATE_IDLE);
>> -	if (IS_ERR(pctl->state_idle))
>> -		return PTR_ERR(pctl->state_idle);
>> -
>>  	return 0;
>>  }
>>  
>>
>