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| author | David Woodhouse <David.Woodhouse@intel.com> | 2010-05-10 17:32:46 +0400 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-05-10 17:32:46 +0400 |
| commit | 0ae28a35bcb7984838acbf28bfba9c030f8b74f0 (patch) | |
| tree | 4f449d929b5df9e126e839f388ff0fd2b52028a0 /drivers/usb/misc/usbsevseg.c | |
| parent | 6f1f3d0ab5c3eeea9f04486481c25e9afdfa26c5 (diff) | |
| parent | b57f95a38233a2e73b679bea4a5453a1cc2a1cc9 (diff) | |
| download | linux-0ae28a35bcb7984838acbf28bfba9c030f8b74f0.tar.xz | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
drivers/mtd/mtdcore.c
Pull in the bdi fixes and ARM platform changes that other outstanding
patches depend on.
Diffstat (limited to 'drivers/usb/misc/usbsevseg.c')
| -rw-r--r-- | drivers/usb/misc/usbsevseg.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/usb/misc/usbsevseg.c b/drivers/usb/misc/usbsevseg.c index a9555cb901a1..de8ef945b536 100644 --- a/drivers/usb/misc/usbsevseg.c +++ b/drivers/usb/misc/usbsevseg.c @@ -49,6 +49,7 @@ struct usb_sevsegdev { u16 textlength; u8 shadow_power; /* for PM */ + u8 has_interface_pm; }; /* sysfs_streq can't replace this completely @@ -68,12 +69,16 @@ static void update_display_powered(struct usb_sevsegdev *mydev) { int rc; - if (!mydev->shadow_power && mydev->powered) { + if (mydev->powered && !mydev->has_interface_pm) { rc = usb_autopm_get_interface(mydev->intf); if (rc < 0) return; + mydev->has_interface_pm = 1; } + if (mydev->shadow_power != 1) + return; + rc = usb_control_msg(mydev->udev, usb_sndctrlpipe(mydev->udev, 0), 0x12, @@ -86,8 +91,10 @@ static void update_display_powered(struct usb_sevsegdev *mydev) if (rc < 0) dev_dbg(&mydev->udev->dev, "power retval = %d\n", rc); - if (mydev->shadow_power && !mydev->powered) + if (!mydev->powered && mydev->has_interface_pm) { usb_autopm_put_interface(mydev->intf); + mydev->has_interface_pm = 0; + } } static void update_display_mode(struct usb_sevsegdev *mydev) @@ -351,6 +358,10 @@ static int sevseg_probe(struct usb_interface *interface, mydev->intf = interface; usb_set_intfdata(interface, mydev); + /* PM */ + mydev->shadow_power = 1; /* currently active */ + mydev->has_interface_pm = 0; /* have not issued autopm_get */ + /*set defaults */ mydev->textmode = 0x02; /* ascii mode */ mydev->mode_msb = 0x06; /* 6 characters */ |