linux-kernel - Re: [PATCH 2/4] EDAC, altera: update driver to reflect hw/yaml

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Message-ID: <32304141-5025-4955-97d3-392b5035c4dc@altera.com>
Date: Sun, 23 Mar 2025 09:13:52 -0700
From: "Gerlach, Matthew" <matthew.gerlach@...era.com>
To: Borislav Petkov <bp@...en8.de>
Cc: robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
 dinguyen@...nel.org, tony.luck@...el.com, james.morse@....com,
 mchehab@...nel.org, rric@...nel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-edac@...r.kernel.org
Subject: Re: [PATCH 2/4] EDAC, altera: update driver to reflect hw/yaml


On 3/21/2025 2:12 PM, Borislav Petkov wrote:
> On Thu, Mar 20, 2025 at 09:46:20AM -0700, Matthew Gerlach wrote:
> > The device tree subnodes, and hardware, for the eccmgr are
> > the same for Arria10, Stratix10, and Agilex. Update driver
> > to allow the subnodes to be allowed for "altr,socfpga-s10-ecc-manager".
> > 
> > Signed-off-by: Matthew Gerlach <matthew.gerlach@...era.com>
> > ---
> >  drivers/edac/altera_edac.c | 3 +++
> >  1 file changed, 3 insertions(+)
> > 
> > diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c
> > index 3e971f902363..895a5beb700f 100644
> > --- a/drivers/edac/altera_edac.c
> > +++ b/drivers/edac/altera_edac.c
> > @@ -1030,6 +1030,9 @@ static int __init __maybe_unused altr_init_a10_ecc_device_type(char *compat)
> >  
> >  	np = of_find_compatible_node(NULL, NULL,
> >  				     "altr,socfpga-a10-ecc-manager");
> > +	if (!np)
> > +		np = of_find_compatible_node(NULL, NULL,
> > +					     "altr,socfpga-s10-ecc-manager");
>
> Please slap a comment above this here - one can see the difference between the
> two calls only after staring at them for a couple of minutes and wonder
> where's Waldo.

Adding a comment is a very good suggestion. On the other hand, Rob 
Herring and Krzysztof Kozlowski pointed out that this change represents 
a change in the ABI which should be avoided. This change won't be part 
of v2.

>
> :-P
>
> Thx.


Thanks for the feedback,

Matthew Gerlach