diff options
Diffstat (limited to 'drivers/staging/media/omap4iss/iss.h')
| -rw-r--r-- | drivers/staging/media/omap4iss/iss.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/staging/media/omap4iss/iss.h b/drivers/staging/media/omap4iss/iss.h index 346db9233171..05cd9bf3b41f 100644 --- a/drivers/staging/media/omap4iss/iss.h +++ b/drivers/staging/media/omap4iss/iss.h @@ -233,4 +233,18 @@ void iss_reg_update(struct iss_device *iss, enum iss_mem_resources res, iss_reg_write(iss, res, offset, (v & ~clr) | set); } +#define iss_poll_condition_timeout(cond, timeout, min_ival, max_ival) \ +({ \ + unsigned long __timeout = jiffies + usecs_to_jiffies(timeout); \ + unsigned int __min_ival = (min_ival); \ + unsigned int __max_ival = (max_ival); \ + bool __cond; \ + while (!(__cond = (cond))) { \ + if (time_after(jiffies, __timeout)) \ + break; \ + usleep_range(__min_ival, __max_ival); \ + } \ + !__cond; \ +}) + #endif /* _OMAP4_ISS_H_ */ |