[PATCH v4 03/17] PCI: designware-ep: Read-only registers need DBI_RO_WR_EN to be writable

Certain registers that pcie-designware-ep tries to write to are read-only registers. However, these registers can become read/write if we first enable the DBI_RO_WR_EN bit. Set/unset the DBI_RO_WR_EN bit before/after writing these registers. Signed-off-by: Niklas Cassel

[PATCH v4 03/17] PCI: designware-ep: Read-only registers need DBI_RO_WR_EN to be writable

Certain registers that pcie-designware-ep tries to write to are read-only registers. However, these registers can become read/write if we first enable the DBI_RO_WR_EN bit. Set/unset the DBI_RO_WR_EN bit before/after writing these registers. Signed-off-by: Niklas Cassel ---