Re: [PATCH 02/15] ARM: OMAP: Correct interrupt type for ARM TWD

From: Jon Hunter
Date: Tue Mar 29 2016 - 10:02:32 EST

Hi Tony,

On 18/03/16 15:41, Grygorii Strashko wrote:
> On 03/17/2016 04:19 PM, Jon Hunter wrote:
>> The ARM TWD interrupt is a private peripheral interrupt (PPI) and per
>> the ARM GIC documentation, whether the type for PPIs can be set is
>> IMPLEMENTATION DEFINED. For OMAP4 devices the PPI type cannot be set and
>> so when we attempt to set the type for the ARM TWD interrupt it fails.
>> This has done unnoticed because it fails silently and because we cannot
>> re-configure the type it has had no impact. Nevertheless fix the type
>> for the TWD interrupt so that it matches the hardware configuration.
>> Reported-by: Grygorii Strashko <grygorii.strashko@xxxxxx>
>> Signed-off-by: Jon Hunter <jonathanh@xxxxxxxxxx>
>> ---
>> Tony, Grygorii,
>> Please note that I have not tested this. Can you test this series and
>> see if you see any warnings on OMAP4? I am guessing that the configuration
>> should be LEVEL and not EDGE. This was reported here:
> Tested-by: Grygorii Strashko <grygorii.strashko@xxxxxx>
> Tested on PandaBoard. Without this patch I can see below warning:

I think that you can pick up this fix independently of this series as it
is something that has been broken for sometime and should be fixed. I
included it here for completeness to highlight the issue but if you want
to take it now, please go ahead.