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usb: xhci-mtk: support option to disable usb3 ports

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Add support to disable specific usb3 ports, it's useful when
usb3 phy is shared with PCIe or SATA, because we should disable
the corresponding usb3 port if the phy is used by PCIe or SATA.
Sometimes it's helpful to analyse and solve problems.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chunfeng Yun
2017-10-13 16:26:36 +08:00
committed by Greg Kroah-Hartman
parent ce370bfdb9
commit 55ba6e9e25
2 changed files with 16 additions and 3 deletions
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1
drivers/usb/host/xhci-mtk.h
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@@ -121,6 +121,7 @@ struct xhci_hcd_mtk {
bool has_ippc;
int num_u2_ports;
int num_u3_ports;
int u3p_dis_msk;
struct regulator *vusb33;
struct regulator *vbus;
struct clk *sys_clk; /* sys and mac clock */