[PATCH v2,2/5] usb: xhci-mtk: make IPPC register optional

Make IPPC register optional to support host side of dual-role mode, due to it is moved into common glue layer for simplification. Signed-off-by: Chunfeng Yun --- drivers/usb/host/xhci-mtk.c | 32 +++- 1 file changed, 27 insertions(+), 5

[PATCH v2,2/5] usb: xhci-mtk: make IPPC register optional

Make IPPC register optional to support host side of dual-role mode, due to it is moved into common glue layer for simplification. Signed-off-by: Chunfeng Yun --- drivers/usb/host/xhci-mtk.c | 32 +++- 1 file changed, 27 insertions(+), 5 deletions(-) diff --git