On Wed, Feb 16, 2022 at 02:21:01PM +0800, Richard Zhu wrote: > When link is never came up in the link training after host_init. > The clocks and power supplies usage counter balance should be handled > properly on some DWC platforms (for example, i.MX PCIe). > > Add a new host_exit() callback into dw_pcie_host_ops, then it could be > invoked to handle the unbalance issue in the error handling after > host_init() function when link is down. Possible rewording, not sure if it captures everything you want: When the link never comes up after ->host_init(), some drivers, especially those that don't support hotplug, want to turn off clocks and power supplies. Add a new ->host_exit() callback in dw_pcie_host_ops so these drivers can clean up if ->host_init() fails.
