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drm/i915/bxt: Set time interval unit to 0.833us 

Note that in Bspec you have to dig around in a section called
"Timestamp bases" and Bspec update request is filed.

Signed-off-by: Ankitprasad Sharma <ankitprasad.r.sharma@intel.com>
Signed-off-by: Akash Goel <akash.goel@intel.com>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
[danvet: Add note about state of Bspec.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Akash Goel 2015-09-18 23:39:51 +05:30 committed by Daniel Vetter
parent 2f5945bc90
commit 26148bd3c0
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/i915/i915_reg.h
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@ -2840,8 +2840,11 @@ enum skl_disp_power_wells {
#define INTERVAL_1_28_US(us) (((us) * 100) >> 7)
#define INTERVAL_1_33_US(us) (((us) * 3) >> 2)
#define INTERVAL_0_833_US(us) (((us) * 6) / 5)
#define GT_INTERVAL_FROM_US(dev_priv, us) (IS_GEN9(dev_priv) ? \
INTERVAL_1_33_US(us) : \
(IS_BROXTON(dev_priv) ? \
INTERVAL_0_833_US(us) : \
INTERVAL_1_33_US(us)) : \
INTERVAL_1_28_US(us))
/*