Commit af1c51fcb2aea23ec2dfe73b7d66515d1622e689
Committed by
Greg Kroah-Hartman
Greg Kroah-Hartman
1 parent
0eb0226c9d
Exists in
master
and in
7 other branches
USB: EHCI restart speedup
It is not necessary to powerdown the ports on ehci_pci_reinit() when the chip reset already did that. Removing this saves 20ms during restart after poweroff paths (which OLPC uses a lot). To ensure driver startup then behaves consistently, force a reset during driver startup. (Not doing this was an accident of some previous changes to the init sequence.) Make the corresponding change in the PS3 support. It's not clear what ehci-fsl should do here; it has similar code to the PS3. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: <rvinson@mvista.com> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Showing 2 changed files with 2 additions and 5 deletions Side-by-side Diff
drivers/usb/host/ehci-pci.c
| ... | ... | @@ -58,8 +58,6 @@ |
| 58 | 58 | if (!retval) |
| 59 | 59 | ehci_dbg(ehci, "MWI active\n"); |
| 60 | 60 | |
| 61 | - ehci_port_power(ehci, 0); | |
| 62 | - | |
| 63 | 61 | return 0; |
| 64 | 62 | } |
| 65 | 63 | |
| ... | ... | @@ -156,8 +154,7 @@ |
| 156 | 154 | break; |
| 157 | 155 | } |
| 158 | 156 | |
| 159 | - if (ehci_is_TDI(ehci)) | |
| 160 | - ehci_reset(ehci); | |
| 157 | + ehci_reset(ehci); | |
| 161 | 158 | |
| 162 | 159 | /* at least the Genesys GL880S needs fixup here */ |
| 163 | 160 | temp = HCS_N_CC(ehci->hcs_params) * HCS_N_PCC(ehci->hcs_params); |