usleep_range() is perfect for this.
Signed-off-by: Sean Young <sean@xxxxxxxx>
---
drivers/staging/media/lirc/lirc_sir.c | 17 +----------------
1 file changed, 1 insertion(+), 16 deletions(-)
diff --git a/drivers/staging/media/lirc/lirc_sir.c b/drivers/staging/media/lirc/lirc_sir.c
index 3a2bac9..9b09c25 100644
--- a/drivers/staging/media/lirc/lirc_sir.c
+++ b/drivers/staging/media/lirc/lirc_sir.c
@@ -90,21 +90,6 @@ static inline void soutp(int offset, int value)
outb(value, io + offset);
}
-#ifndef MAX_UDELAY_MS
-#define MAX_UDELAY_US 5000
-#else
-#define MAX_UDELAY_US (MAX_UDELAY_MS * 1000)
-#endif
-
-static void safe_udelay(unsigned long usecs)
-{
- while (usecs > MAX_UDELAY_US) {
- udelay(MAX_UDELAY_US);
- usecs -= MAX_UDELAY_US;
- }
- udelay(usecs);
-}
-
/* SECTION: Communication with user-space */
static int sir_tx_ir(struct rc_dev *dev, unsigned int *tx_buf,
unsigned int count)
@@ -294,7 +279,7 @@ static irqreturn_t sir_interrupt(int irq, void *dev_id)
static void send_space(unsigned long len)
{
- safe_udelay(len);
+ usleep_range(len, len + 25);
}
static void send_pulse(unsigned long len)
--
2.9.3
