hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'topic/namespace' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into regmap-core

This commit is contained in:
Mark Brown 2017-10-13 18:21:06 +01:00
parent 2bd6bf03f4 780b1350d3
commit 07d1346419
1 changed files with 9 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
include/linux/regmap.h
View File

@ -120,23 +120,24 @@ struct reg_sequence {
*/
#define regmap_read_poll_timeout(map, addr, val, cond, sleep_us, timeout_us) \
({ \
ktime_t timeout = ktime_add_us(ktime_get(), timeout_us); \
int pollret; \
ktime_t __timeout = ktime_add_us(ktime_get(), timeout_us); \
int __ret; \
might_sleep_if(sleep_us); \
for (;;) { \
pollret = regmap_read((map), (addr), &(val)); \
if (pollret) \
__ret = regmap_read((map), (addr), &(val)); \
if (__ret) \
break; \
if (cond) \
break; \
if (timeout_us && ktime_compare(ktime_get(), timeout) > 0) { \
pollret = regmap_read((map), (addr), &(val)); \
if ((timeout_us) && \
ktime_compare(ktime_get(), __timeout) > 0) { \
__ret = regmap_read((map), (addr), &(val)); \
break; \
} \
if (sleep_us) \
usleep_range((sleep_us >> 2) + 1, sleep_us); \
usleep_range(((sleep_us) >> 2) + 1, sleep_us); \
} \
pollret ?: ((cond) ? 0 : -ETIMEDOUT); \
__ret ?: ((cond) ? 0 : -ETIMEDOUT); \
})
#ifdef CONFIG_REGMAP