From mboxrd@z Thu Jan  1 00:00:00 1970
From: sebastien.bourdelin@savoirfairelinux.com (Sebastien Bourdelin)
Date: Tue, 14 Mar 2017 11:40:08 -0400
Subject: [PATCH v2 4/6] bus: add driver for the Technologic Systems NBUS
In-Reply-To: <CACRpkdbjANV+kiO_W9+=OL=fzPtTVwH2CpWDmNa50t3JaHTFkQ@mail.gmail.com>
References: <20170203194729.20995-1-sebastien.bourdelin@savoirfairelinux.com>
 <20170203194729.20995-5-sebastien.bourdelin@savoirfairelinux.com>
 <CACRpkdYfGmVBYgAc4KZGN6634WM_EyzNj_SBbALEs4WYipXRQA@mail.gmail.com>
 <82dfdbb8-58fc-45b4-685c-98be11341e45@savoirfairelinux.com>
 <CACRpkdbjANV+kiO_W9+=OL=fzPtTVwH2CpWDmNa50t3JaHTFkQ@mail.gmail.com>
Message-ID: <07e0e4b2-36a5-a37e-ea04-d05158d11fba@savoirfairelinux.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Hi Linus,

On 03/14/2017 09:23 AM, Linus Walleij wrote:
> On Wed, Feb 22, 2017 at 5:56 PM, Sebastien Bourdelin
> <sebastien.bourdelin@savoirfairelinux.com> wrote:
>> On 02/04/2017 05:14 AM, Linus Walleij wrote:
> 
>>>> +       gpiod_set_array_value_cansleep(gpios->ndescs, gpios->desc, values);
>>>
>>> This can also fail and you should check the return code and print an error
>>> message if it does.
>>>
>> As far as i understood, the "gpiod_set_array_value_cansleep(...)"
>> function doesn't return
>> anything, it will return immediately if gpios->desc is null but nothing
>> else.
>> Did i miss something?
> 
> No I did, sorry about that.
> 
> We *should* make these functions return errors but currently they do not.
> 
Ok got it.
Thanks!

>>> Error codes?
>>>
>> Same question here, these functions only make call to
>> "gpiod_set_value_cansleep(...)",
>> which as far as i understood doesn't return any error code.
> 
> Yeah, forget that.
> 
Ok.

>>>> +               gpiod_set_value_cansleep(ts_nbus->csn, 1);
>>>
>>> Here too.
>>>
>> Same question, doesn't seem to have an error code.
> 
> That too.
>
Ok.

> Yours,
> Linus Walleij
> 

Best regards,
Sebastien Bourdelin.