Hi Stephen,
2016-08-20 4:16 GMT+09:00 Stephen Boyd [off-list ref]:
quoted
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+
+ parent = of_get_parent(dev->of_node); /* parent should be syscon node */
+ regmap = syscon_node_to_regmap(parent);
+ of_node_put(parent);
devm_get_regmap(dev->parent) should work then? Why do we need to
use OF APIs?
"git grep devm_get_regmap" did not hit anything.
Where is it defined?
Sorry I meant dev_get_regmap().
I tried this, but it did not work.
To make dev_get_regmap() work,
the parent device needs to call dev_regmap_init_mmio() beforehand.
Since commit bdb0066df96e74a4002125467ebe459feff1ebef
(mfd: syscon: Decouple syscon interface from platform devices),
syscon_probe() is not called for platform devices,
so that never happens.
--
Best Regards
Masahiro Yamada