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| author | Oliver Neukum <oneukum@suse.com> | 2017-03-20 14:37:30 +0100 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2017-03-22 09:45:00 +0100 |
| commit | 78c43af2c1d79653e2e6fb9a05c8f3def7c87940 (patch) | |
| tree | 14f7efa2cd37254339aae8fcab4d793e74bac620 /drivers/i2c | |
| parent | a528fab6cc66acdccb48552a79300bc1fbda6b5b (diff) | |
| download | blackbird-obmc-linux-78c43af2c1d79653e2e6fb9a05c8f3def7c87940.tar.gz blackbird-obmc-linux-78c43af2c1d79653e2e6fb9a05c8f3def7c87940.zip | |
i2c-designware: increase timeout of semaphore transfer
Our testing shows the semaphore failing to be transferred on CherryTrail
in about 0.5% of all cases. The existing timeout needs to be lengthened
to accommodate the worst cases.
V2: Rebased on https://cgit.freedesktop.org/drm-intel/commit/?h=topic/designware-baytrail
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-designware-baytrail.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-designware-baytrail.c b/drivers/i2c/busses/i2c-designware-baytrail.c index 1749a0f5a9fa..c0e7c8806342 100644 --- a/drivers/i2c/busses/i2c-designware-baytrail.c +++ b/drivers/i2c/busses/i2c-designware-baytrail.c @@ -22,7 +22,7 @@ #include "i2c-designware-core.h" -#define SEMAPHORE_TIMEOUT 100 +#define SEMAPHORE_TIMEOUT 500 #define PUNIT_SEMAPHORE 0x7 #define PUNIT_SEMAPHORE_CHT 0x10e #define PUNIT_SEMAPHORE_BIT BIT(0) |
