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author | Peter Mamonov <pmamonov@gmail.com> | 2015-09-24 19:20:24 +0300 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2015-10-02 07:50:51 +0200 |
commit | 8165f3131c6515fd7375dce7e2ee5759f237e011 (patch) | |
tree | 9415ad13bedbcaad7561e2f1fbbd4739a5c359b1 | |
parent | d27cddcc3ad5c37c22acf287a5dbe36a0906359f (diff) | |
download | barebox-8165f3131c6515fd7375dce7e2ee5759f237e011.tar.gz barebox-8165f3131c6515fd7375dce7e2ee5759f237e011.tar.xz |
common: clock: introduce mdelay_non_interruptible()
Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r-- | common/clock.c | 9 | ||||
-rw-r--r-- | include/clock.h | 1 | ||||
-rw-r--r-- | include/common.h | 1 |
3 files changed, 11 insertions, 0 deletions
diff --git a/common/clock.c b/common/clock.c index 35c9e6cbb8..2c5dd91ccd 100644 --- a/common/clock.c +++ b/common/clock.c @@ -202,6 +202,15 @@ void mdelay(unsigned long msecs) } EXPORT_SYMBOL(mdelay); +void mdelay_non_interruptible(unsigned long msecs) +{ + uint64_t start = get_time_ns(); + + while (!is_timeout_non_interruptible(start, msecs * MSECOND)) + ; +} +EXPORT_SYMBOL(mdelay_non_interruptible); + int init_clock(struct clocksource *cs) { current_clock = cs; diff --git a/include/clock.h b/include/clock.h index 691befc2e2..c3f4c5381f 100644 --- a/include/clock.h +++ b/include/clock.h @@ -38,6 +38,7 @@ int is_timeout_non_interruptible(uint64_t start_ns, uint64_t time_offset_ns); void ndelay(unsigned long nsecs); void mdelay(unsigned long msecs); +void mdelay_non_interruptible(unsigned long msecs); #define SECOND ((uint64_t)(1000 * 1000 * 1000)) #define MSECOND ((uint64_t)(1000 * 1000)) diff --git a/include/common.h b/include/common.h index 553a7f4f44..c57690812a 100644 --- a/include/common.h +++ b/include/common.h @@ -72,6 +72,7 @@ void __noreturn poweroff(void); /* lib_$(ARCH)/time.c */ void udelay (unsigned long); void mdelay (unsigned long); +void mdelay_non_interruptible (unsigned long); /* lib_generic/crc32.c */ uint32_t crc32(uint32_t, const void*, unsigned int); |