From: Daniel Vetter Date: Thu, 11 Apr 2013 14:29:09 +0000 (+0200) Subject: drm/i915: add pipe asserts for the crtc enable sequence X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=58c6eaa24dbd8c97ef5f643324f087271aa79d64;p=openwrt%2Fstaging%2Fblogic.git drm/i915: add pipe asserts for the crtc enable sequence The i9xx modeset sequence is currently pretty fishy, so tight it all up with some good assert-sprinkling. We already have good coverage on the disable side, but the enable side is spotty (since until recently it was wrong). Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 5a904ddbb0df..62fd5eae61c8 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1474,6 +1474,8 @@ static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe) int reg; u32 val; + assert_pipe_disabled(dev_priv, pipe); + /* No really, not for ILK+ */ BUG_ON(!IS_VALLEYVIEW(dev_priv->dev) && dev_priv->info->gen >= 5); @@ -1835,6 +1837,9 @@ static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, int reg; u32 val; + assert_planes_disabled(dev_priv, pipe); + assert_sprites_disabled(dev_priv, pipe); + if (HAS_PCH_LPT(dev_priv->dev)) pch_transcoder = TRANSCODER_A; else