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| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2011-07-07 22:11:00 +0400 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2011-07-08 00:38:44 +0400 |
| commit | 899526d9a73fda47516cf11ccb3467ad6702f568 (patch) | |
| tree | d4bdec27956e40aaa9209da438cea6ae3ef8f7f0 /drivers/input/input.c | |
| parent | 59cd09e1aea3ac6eb15b45e5d2261a63ecb1799c (diff) | |
| download | linux-899526d9a73fda47516cf11ccb3467ad6702f568.tar.xz | |
drm/i915/dp: try to read receiver capabilities 3 times when detecting
If ->detect is called too soon after a hot plug event, the sink may not
be ready yet. So try up to 3 times with 1ms sleeps in between tries to
get the data (spec dictates that receivers must be ready to respond within
1ms and that sources should try 3 times).
See section 9.1 of the 1.1a DisplayPort spec.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'drivers/input/input.c')
0 files changed, 0 insertions, 0 deletions