PCI: tegra: Add support to enable slot regulators

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Add support to get regulator information of 3.3V and 12V supplies of a PCIe
slot from the respective controller's device-tree node and enable those
supplies. This is required in platforms like p2972-0000 where the supplies
to x16 slot owned by C5 controller need to be enabled before attempting to
enumerate the devices.

Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
Acked-by: Thierry Reding <treding@nvidia.com>

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Vidya Sagar 2019-09-05 16:15:51 +05:30 • committed by Bjorn Helgaas

parent f4ff4faf89

commit 0a901f2130

1 changed files with 83 additions and 0 deletions

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drivers/pci/controller/dwc/pcie-tegra194.c

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