usleep_range() is perfect for this.
Showing the changes to drivers/staging/media/lirc (1 of 1 file). Show all
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| @@ -76,21 +76,6 @@ static inline void soutp(int offset, int value) · 75 unmodified lines | ||
| 76 | 76 | outb(value, io + offset); |
| 77 | 77 | } |
| 78 | 78 | |
| 79 | −#ifndef MAX_UDELAY_MS | |
| 80 | −#define MAX_UDELAY_US 5000 | |
| 81 | −#else | |
| 82 | −#define MAX_UDELAY_US (MAX_UDELAY_MS * 1000) | |
| 83 | −#endif | |
| 84 | − | |
| 85 | −static void safe_udelay(unsigned long usecs) | |
| 86 | −{ | |
| 87 | − while (usecs > MAX_UDELAY_US) { | |
| 88 | − udelay(MAX_UDELAY_US); | |
| 89 | − usecs -= MAX_UDELAY_US; | |
| 90 | − } | |
| 91 | − udelay(usecs); | |
| 92 | −} | |
| 93 | − | |
| 94 | 79 | /* SECTION: Communication with user-space */ |
| 95 | 80 | static int sir_tx_ir(struct rc_dev *dev, unsigned int *tx_buf, |
| 96 | 81 | unsigned int count) |
| @@ -281,7 +266,7 @@ static irqreturn_t sir_interrupt(int irq, void *dev_id) · 184 unmodified lines | ||
| 281 | 266 | |
| 282 | 267 | static void send_space(unsigned long len) |
| 283 | 268 | { |
| 284 | − safe_udelay(len); | |
| 269 | + usleep_range(len, len + 25); | |
| 285 | 270 | } |
| 286 | 271 | |
| 287 | 272 | static void send_pulse(unsigned long len) |