Messages in this thread |  | | From | Qu Wenruo <> | Subject | About the rockpi4 pcie controller failed to initialize problem in v5.10-rc2 | Date | Sat, 7 Nov 2020 20:29:51 +0800 |
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Hi guys,
I see your awesome contribution to support Rock Pi 4B.
However in recent rc (v5.10-rc2), I found that even with `vpcie1v8` and `vpcie0v9` added, `regulartor_dev_lookup()` now just returns -EPROBE_DEFER, preventing rockchip pcie controller to be initialized.
The full callchain is:
rockchip_pcie_parse_host_dt() |- rockchip>vpcie1v8 = devm_regulator_get_optional(dev, "vpcie1v8"); |- _regulator_get() |- regulator_dev_lookup() |- node = of_get_regulartor() |- if (!node) { |- r = of_find_regulator(); /* No @r found */ |- return ERR_PTR(-EPROBE_DEFER);
This means we can't utilize PCIE controller completely.
But strangely, `vpcie12v` and `vpcie3v3` both initialized without problem.
Any clue on how the problem could happened? I guess it's some device tree definition went crazy, but not familiar with device tree at all.
Thanks, Qu
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