[PATCH v4 3/7] PCI: mediatek: Add a structure to abstract the controller generations

From: Honghui Zhang Introduce a structure "mtk_pcie_soc" to abstract the differences between controller generations, and the .startup() hook is used to encapsulate some SoC-dependent related setting. In doing so, the common code which will be reused by future chips.

[PATCH v4 3/7] PCI: mediatek: Add a structure to abstract the controller generations

From: Honghui Zhang Introduce a structure "mtk_pcie_soc" to abstract the differences between controller generations, and the .startup() hook is used to encapsulate some SoC-dependent related setting. In doing so, the common code which will be reused by future chips. Signed-off-by: Ryder Lee