From: Manasi Navare Date: Tue, 15 Aug 2017 18:59:51 +0000 (-0700) Subject: drm/i915/edp: Increase T12 panel delay to 900 ms to fix DP AUX CH timeouts X-Git-Tag: v4.15-rc1~19^2~57^2~30 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=e8f345e08d391827f2cba5d172af990cc7afb062;p=linux-block.git drm/i915/edp: Increase T12 panel delay to 900 ms to fix DP AUX CH timeouts This patch fixes the DP AUX CH timeouts observed during CI runs causing CI Failures on a specific PCI device. This issue was fixed previously by adding a quirk but looks like we need to increase this delay even more in order to get rid all the DP AUX CH timeouts. 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 Signed-off-by: Manasi Navare Cc: Clinton Taylor Cc: Daniel Vetter Cc: Tomi Sarvela Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/1502823591-25310-1-git-send-email-manasi.d.navare@intel.com --- diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 49a8c339b2b0..887953c0f495 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, 800 * 10); + vbt.t11_t12 = max_t(u16, vbt.t11_t12, 900 * 10); DRM_DEBUG_KMS("Increasing T12 panel delay as per the quirk to %d\n", vbt.t11_t12); }