diff options
| author | Manasi Navare <[email protected]> | 2017-10-03 16:37:25 -0700 |
|---|---|---|
| committer | Rodrigo Vivi <[email protected]> | 2017-10-09 10:33:08 -0700 |
| commit | 7313f5a93d2017f789909a7a727a6cab48ea6d20 (patch) | |
| tree | 342ffe7db3c94c55b9287de9dae80103d2b23ac8 | |
| parent | d7ba25bd9ef802ff02414e9105f4222d1795f27a (diff) | |
drm/i915/edp: Increase the T12 delay quirk to 1300ms
For this specific PCI device, the eDP panel requires a higher panel
power cycle delay of 1300ms where the minimum spec requirement of panel
power cycle delay is 500ms. This fix in combination with correct
timestamp at which we get the panel power off time fixes the dP AUX CH
timeouts seen on various IGT tests.
Fixes: c99a259b4b5192ba ("drm/i915/edp: Add a T12 panel delay quirk to fix
DP AUX CH timeouts")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101144
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101518
Cc: Daniel Vetter <[email protected]>
Cc: Jani Nikula <[email protected]>
Cc: Ville Syrjala <[email protected]>
Signed-off-by: Manasi Navare <[email protected]>
Acked-by: Daniel Vetter <[email protected]>
Signed-off-by: Jani Nikula <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit c02b8fb4073d1b9aa5af909a91b51056b819d946)
Signed-off-by: Rodrigo Vivi <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index c0f8d7e66049..203198659ab2 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -5273,7 +5273,7 @@ intel_dp_init_panel_power_sequencer(struct drm_device *dev, * seems sufficient to avoid this problem. */ if (dev_priv->quirks & QUIRK_INCREASE_T12_DELAY) { - vbt.t11_t12 = max_t(u16, vbt.t11_t12, 900 * 10); + vbt.t11_t12 = max_t(u16, vbt.t11_t12, 1300 * 10); DRM_DEBUG_KMS("Increasing T12 panel delay as per the quirk to %d\n", vbt.t11_t12); } |