diff options
| author | Zeng Tao <prime.zeng@hisilicon.com> | 2018-12-07 15:19:29 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-07 15:40:41 +0100 |
| commit | f1fd62a6b6c62e10ceb97432e9616b575538b699 (patch) | |
| tree | ae7548f9adafea9d9609dbbd09b351dd31d926de /drivers/usb/host/xhci-mem.c | |
| parent | usb: appledisplay: Remove unnecessary spinlock (diff) | |
| download | linux-f1fd62a6b6c62e10ceb97432e9616b575538b699.tar.xz linux-f1fd62a6b6c62e10ceb97432e9616b575538b699.zip | |
xhci: remove the unused sw_lpm_support
It is introduced for the pre-0.96 xHC controllers, and the driver only
support HW LPM for 1.0 and later controllers.It's not actually used now
and is thought not to be used in the future any more, so just remove it.
Signed-off-by: Zeng Tao <prime.zeng@hisilicon.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci-mem.c')
| -rw-r--r-- | drivers/usb/host/xhci-mem.c | 20 |
1 files changed, 4 insertions, 16 deletions
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index b1f27aa38b10..791c5d844d60 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -2181,23 +2181,11 @@ static void xhci_add_in_port(struct xhci_hcd *xhci, unsigned int num_ports, if (major_revision < 0x03 && xhci->num_ext_caps < max_caps) xhci->ext_caps[xhci->num_ext_caps++] = temp; - /* Check the host's USB2 LPM capability */ - if ((xhci->hci_version == 0x96) && (major_revision != 0x03) && - (temp & XHCI_L1C)) { + if ((xhci->hci_version >= 0x100) && (major_revision != 0x03) && + (temp & XHCI_HLC)) { xhci_dbg_trace(xhci, trace_xhci_dbg_init, - "xHCI 0.96: support USB2 software lpm"); - xhci->sw_lpm_support = 1; - } - - if ((xhci->hci_version >= 0x100) && (major_revision != 0x03)) { - xhci_dbg_trace(xhci, trace_xhci_dbg_init, - "xHCI 1.0: support USB2 software lpm"); - xhci->sw_lpm_support = 1; - if (temp & XHCI_HLC) { - xhci_dbg_trace(xhci, trace_xhci_dbg_init, - "xHCI 1.0: support USB2 hardware lpm"); - xhci->hw_lpm_support = 1; - } + "xHCI 1.0: support USB2 hardware lpm"); + xhci->hw_lpm_support = 1; } port_offset--; |