diff options
| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2013-06-27 00:39:25 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-07-01 19:37:53 +0200 |
| commit | f1f644dc66cbaf5a4c7dcde683361536b41885b9 (patch) | |
| tree | ca7844bb05bb6dcbc23fd5c24d2f54644656a967 /drivers/gpu/drm/i915/intel_dp.c | |
| parent | 2385bdf0787aef45ee1847b8508a417433da7e14 (diff) | |
drm/i915: get mode clock when reading the pipe config v9
We need this for comparing modes between configuration changes.
The tricky part is to allow us to reuse the new get_clock stuff to
recover the lvds clock on gen2/3 when neither the vbt has an lvds mode
nor the panel a (useful) EDID.
v2: try harder to calulate non-simple pixel clocks (Daniel)
call get_clock after getting the encoder config, needed for pixel multiply
(Jesse)
v3: drop get_clock now that the pixel_multiply has been moved into
get_pipe_config
v4: re-add get_clock; we need to get the pixel multiplier in the
encoder, so need to calculate the clock value after the encoder's
get_config is called
v5: drop hsw clock_get, still needs to be written
v6: add fuzzy clock check (Daniel)
v7: wrap fuzzy clock check under !IS_HASWELL
use port_clock field rather than a new CPU eDP clock field in crtc_config
v8: remove stale pixel_multiplier sets (Daniel)
multiply by pixel_multiplier in 9xx clock get too (Daniel)
v9: make sure we set pixel_multiplier before calling clock_get from mode_get
for LVDS (Daniel)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Add some explanation to the commit message about why we have
to jump through a few hoops. Also remove the rebase-fail hunk from
intel_sdvo.c]
[danvet: Squash in the fixup from Jesse to also call ->get_clock in
the modeset state checker.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index b7397123401..11eb697dec0 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1355,6 +1355,13 @@ static void intel_dp_get_config(struct intel_encoder *encoder, } pipe_config->adjusted_mode.flags |= flags; + + if (dp_to_dig_port(intel_dp)->port == PORT_A) { + if ((I915_READ(DP_A) & DP_PLL_FREQ_MASK) == DP_PLL_FREQ_160MHZ) + pipe_config->port_clock = 162000; + else + pipe_config->port_clock = 270000; + } } static void intel_disable_dp(struct intel_encoder *encoder) |