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SubjectRe: [PATCHv2] EDAC, altera: Move Stratix10 SDRAM ECC to peripheral
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Hi James,

On 7/25/19 7:46 AM, James Morse wrote:
> Hi Thor,
>
> On 12/07/2019 19:28, thor.thayer@linux.intel.com wrote:
>> From: Thor Thayer <thor.thayer@linux.intel.com>
>>
>> ARM32 SoCFPGAs had separate IRQs for SDRAM. ARM64 SoCFPGAs
>> send all DBEs to SError so filtering by source is necessary.
>>
>> The Stratix10 SDRAM ECC is a better match with the generic
>> Altera peripheral ECC framework because the linked list can
>> be searched to find the ECC block offset and printout
>> the DBE Address.
>
>
>> diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c
>> index c2e693e34d43..09a80b53acea 100644
>> --- a/drivers/edac/altera_edac.c
>> +++ b/drivers/edac/altera_edac.c
>
>> @@ -2231,13 +2275,15 @@ static int altr_edac_a10_probe(struct platform_device *pdev)
>> of_device_is_compatible(child, "altr,socfpga-dma-ecc") ||
>> of_device_is_compatible(child, "altr,socfpga-usb-ecc") ||
>> of_device_is_compatible(child, "altr,socfpga-qspi-ecc") ||
>> +#ifdef CONFIG_EDAC_ALTERA_SDRAM
>> + of_device_is_compatible(child, "altr,sdram-edac-s10") ||
>> +#endif
>> of_device_is_compatible(child, "altr,socfpga-sdmmc-ecc"))
>
> I'm just curious: This list looks suspiciously like the altr_edac_a10_device_of_match[]
> list. Is there a reason it can't use of_match_device() here?
>
Good point. Yes, it does look very much like the match list. Although
of_match_device() doesn't fit with the available parameters (device
pointer), your question prompted me to look closer and I noticed
of_match_node() is perfect.

I'll create a version 3 with this change.

Thanks for reviewing!

>>
>> altr_edac_a10_device_add(edac, child);
>>
>> #ifdef CONFIG_EDAC_ALTERA_SDRAM
>> - else if ((of_device_is_compatible(child, "altr,sdram-edac-a10")) ||
>> - (of_device_is_compatible(child, "altr,sdram-edac-s10")))
>> + else if (of_device_is_compatible(child, "altr,sdram-edac-a10"))
>> of_platform_populate(pdev->dev.of_node,
>> altr_sdram_ctrl_of_match,
>> NULL, &pdev->dev);
>
>
> Acked-by: James Morse <james.morse@arm.com>
>
>
> Thanks,
>
> James
>

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