Il 18/05/22 03:41, Rob Herring ha scritto:
On Tue, May 17, 2022 at 03:21:06PM +0200, AngeloGioacchino Del Regno wrote:
Both MT2712 and MT8173 got a mediatek,infracfg phandle: add that to
the required properties for these SoCs to deprecate the old way of
looking for SoC-specific infracfg compatible in the entire devicetree.
Wait, what? If there's only one possible node that can match, I prefer
the 'old way'. Until we implemented a phandle cache, searching the
entire tree was how phandle lookups worked too, so not any better.
But if this makes things more consistent,
Acked-by: Rob Herring <robh@xxxxxxxxxx>
Hello Rob,
This makes things definitely more consistent, as it's done like that on
mtk-pm-domains and other mtk drivers as well.
The main reason why this phandle is useful, here and in other drivers, is
that we're seeing a list of compatibles that is growing more and more, so
you see stuff like (mockup names warning):
switch (some_model)
case MT1000:
p = "mediatek,mt1000-infracfg";
break;
case MT1001:
p = "mediatek,mt1001-infracfg";
break;
case MT1002:
p = "mediatek,mt1002-infracfg";
break;
.....add another 20 SoCs, replicate this switch for 4/5 drivers....
and this is why I want the mtk_iommu driver to also get that phandle like
some other drivers are already doing.
By the way, thanks for the ack!
Regards,
Angelo
