From 9c54c0dd948d715ccfd79e97d852f80eeb53254a Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Wed, 15 Jun 2011 23:32:33 +0200 Subject: [PATCH] drm/i915: load the LUT before pipe enable on ILK+ Per the specs and to address https://bugs.freedesktop.org/show_bug.cgi?id=36888. Signed-off-by: Jesse Barnes Cc: stable@kernel.org Signed-off-by: Keith Packard --- drivers/gpu/drm/i915/intel_display.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 0f1c799afea1..5609c065aaf4 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2699,14 +2699,18 @@ static void ironlake_crtc_enable(struct drm_crtc *crtc) I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size); } + /* + * On ILK+ LUT must be loaded before the pipe is running but with + * clocks enabled + */ + intel_crtc_load_lut(crtc); + intel_enable_pipe(dev_priv, pipe, is_pch_port); intel_enable_plane(dev_priv, plane, pipe); if (is_pch_port) ironlake_pch_enable(crtc); - intel_crtc_load_lut(crtc); - mutex_lock(&dev->struct_mutex); intel_update_fbc(dev); mutex_unlock(&dev->struct_mutex); -- 2.20.1