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drm/i915/edp: get the panel delay before powering up

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In order to setup the i2c channel, we power up the panel
via ironlake_edp_panel_vdd_on, however it requires
intel_dp->panel_power_up_delay to be initialised,
which hasn't been setup yet.

So move things around so we set the panel power up
values first then init the i2c stuff.

This is one step to fixing the eDP panel in the MBP
from uninitialised state.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Dave Airlie 2012-08-30 11:06:18 +10:00 committed by Daniel Vetter
parent 4cbe5a555f
commit c1f05264d8
1 changed files with 7 additions and 4 deletions
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11
drivers/gpu/drm/i915/intel_dp.c
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@ -2533,14 +2533,10 @@ intel_dp_init(struct drm_device *dev, int output_reg)
break;
}
intel_dp_i2c_init(intel_dp, intel_connector, name);
/* Cache some DPCD data in the eDP case */
if (is_edp(intel_dp)) {
bool ret;
struct edp_power_seq cur, vbt;
u32 pp_on, pp_off, pp_div;
struct edid *edid;
pp_on = I915_READ(PCH_PP_ON_DELAYS);
pp_off = I915_READ(PCH_PP_OFF_DELAYS);
@ -2591,6 +2587,13 @@ intel_dp_init(struct drm_device *dev, int output_reg)
DRM_DEBUG_KMS("backlight on delay %d, off delay %d\n",
intel_dp->backlight_on_delay, intel_dp->backlight_off_delay);
}
intel_dp_i2c_init(intel_dp, intel_connector, name);
if (is_edp(intel_dp)) {
bool ret;
struct edid *edid;
ironlake_edp_panel_vdd_on(intel_dp);
ret = intel_dp_get_dpcd(intel_dp);