diff options
| author | Thierry Reding <thierry.reding@avionic-design.de> | 2011-09-01 02:43:03 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-09-21 15:59:19 -0300 |
| commit | 42845708363fc92a190f5c47e6fe750e3919f867 (patch) | |
| tree | cb7ccac672eb989447045d81bd407c5bf3614d63 /drivers | |
| parent | 0a54b86a71dfec88d9b12f0e003ebc4ebb4b1f0a (diff) | |
[media] tm6000: Add fast USB access quirk
Some devices support fast access to registers using the USB interface
while others require a certain delay after each operation. This commit
adds a quirk that can be enabled by devices that don't need the delay.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/tm6000/tm6000-core.c | 3 | ||||
| -rw-r--r-- | drivers/staging/tm6000/tm6000.h | 4 |
2 files changed, 6 insertions, 1 deletions
diff --git a/drivers/staging/tm6000/tm6000-core.c b/drivers/staging/tm6000/tm6000-core.c index b3c4e0529f4..6d0803c886b 100644 --- a/drivers/staging/tm6000/tm6000-core.c +++ b/drivers/staging/tm6000/tm6000-core.c @@ -619,7 +619,8 @@ int tm6000_reset(struct tm6000_core *dev) return err; } - msleep(5); + if ((dev->quirks & TM6000_QUIRK_NO_USB_DELAY) == 0) + msleep(5); /* * Not all devices have int_in defined diff --git a/drivers/staging/tm6000/tm6000.h b/drivers/staging/tm6000/tm6000.h index dac20637c69..5bdce84f8d6 100644 --- a/drivers/staging/tm6000/tm6000.h +++ b/drivers/staging/tm6000/tm6000.h @@ -169,6 +169,8 @@ struct tm6000_endpoint { unsigned maxsize; }; +#define TM6000_QUIRK_NO_USB_DELAY (1 << 0) + struct tm6000_core { /* generic device properties */ char name[30]; /* name (including minor) of the device */ @@ -260,6 +262,8 @@ struct tm6000_core { struct usb_isoc_ctl isoc_ctl; spinlock_t slock; + + unsigned long quirks; }; enum tm6000_ops_type { |