PCI: layerscape: Add function pointer for exit_from_l2()

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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/20231204160829.2498703-2-Frank.Li@nxp.com
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Roy Zang <Roy.Zang@nxp.com>

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Frank Li 2023-12-04 11:08:26 -05:00 • committed by Lorenzo Pieralisi

parent b85ea95d08

commit 123971a193

1 changed files with 9 additions and 2 deletions

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drivers/pci/controller/dwc/pci-layerscape.c

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