[U-Boot] [PATCH v2 10/22] spi: Add error checking for invalid bus widths
Simon Glass
sjg at chromium.org
Wed Nov 30 04:11:01 CET 2016
Hi,
On 25 November 2016 at 20:28, Jagan Teki <jagan at openedev.com> wrote:
> On Sat, Nov 26, 2016 at 1:08 AM, Simon Glass <sjg at chromium.org> wrote:
>> Hi,
>>
>> On 25 November 2016 at 09:59, Fabio Estevam <festevam at gmail.com> wrote:
>>> On Fri, Nov 25, 2016 at 2:57 PM, Jagan Teki <jagan at openedev.com> wrote:
>>>
>>>> Yeah, ie what if dts has a wrong value and do print that and continue
>>>> with default width, so-that the user will update this for next run.
>>>> Since it's not key a attribute to break or decide functionality better
>>>> to go with it.
>>>
>>> Agreed. This also matches with the kernel behaviour.
>>
>> So it is correct to print an error, and then continue? This error will
>> almost never occur and thus it wastes code space. SPI is sensitive
>> because it can be used in SPL. Linux doesn't care about code size as
>> much.
>>
>> So how about either:
>> 1. debug() and return an error
>> 2. debug() and skip the error
>
> I prefer 2. for SPL and replace debug with printf for U-Boot.
OK I have sent v3.
Regards,
Simon
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