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| author |   Jesse Barnes <jbarnes@virtuousgeek.org> | 2010-08-11 10:06:44 -0700 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2010-08-18 13:00:21 -0700 |
| commit | 7643a7fa16edf180d593f705f4fa5930c40e8d2d (patch) | |
| tree | d1ba775fb61c8344532e77ad51d099068c17c975 | |
| parent | drm/i915: add panel reset workaround (diff) | |
| download | linux-dev-7643a7fa16edf180d593f705f4fa5930c40e8d2d.tar.xz linux-dev-7643a7fa16edf180d593f705f4fa5930c40e8d2d.zip | |
drm/i915: eDP mode set sequence corrections
We should disable the panel first when shutting down an eDP link. And
when turning one on, the panel needs to be enabled before link training
or eDP I/O won't be enabled.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index d1b4ece4df00..8061a48804a3 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -840,20 +840,19 @@ intel_dp_dpms(struct drm_encoder *encoder, int mode) uint32_t dp_reg = I915_READ(intel_dp->output_reg); if (mode != DRM_MODE_DPMS_ON) { - if (dp_reg & DP_PORT_EN) { - intel_dp_link_down(intel_dp); - if (IS_eDP(intel_dp) || IS_PCH_eDP(intel_dp)) { - ironlake_edp_backlight_off(dev); - ironlake_edp_panel_off(dev); - } + if (IS_eDP(intel_dp) || IS_PCH_eDP(intel_dp)) { + ironlake_edp_backlight_off(dev); + ironlake_edp_panel_off(dev); } + if (dp_reg & DP_PORT_EN) + intel_dp_link_down(intel_dp); } else { if (!(dp_reg & DP_PORT_EN)) { - intel_dp_link_train(intel_dp); - if (IS_eDP(intel_dp) || IS_PCH_eDP(intel_dp)) { + if (IS_eDP(intel_dp) || IS_PCH_eDP(intel_dp)) ironlake_edp_panel_on(dev); + intel_dp_link_train(intel_dp); + if (IS_eDP(intel_dp) || IS_PCH_eDP(intel_dp)) ironlake_edp_backlight_on(dev); - } } } intel_dp->dpms_mode = mode; |