PCI: layerscape: Add function pointer for exit_from_l2()

Since different SoCs require different sequences for exiting L2, let's add
a separate "exit_from_l2()" callback to handle SoC specific sequences.

Change ls_pcie_exit_from_l2() return value from void to int in order
to propagate errors. Return an error if the exit_from_l2() callback
fails in the resume flow.

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Frank Li <[email protected]>
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Reviewed-by: Manivannan Sadhasivam <[email protected]>
Acked-by: Roy Zang <[email protected]>

0 files changed, 0 insertions, 0 deletions