mirror of https://gitee.com/openkylin/linux.git
drm/i915: fix up the IBX transcoder B check
This has been added in
commit de9a35abb3
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue Jun 5 11:03:40 2012 +0200
drm/i915: assert that the IBX port transcoder select w/a is implemented
Unfortunately I've failed to notice that these checks are not just
called for the port that is about to be disabled, but for all (which
makes sense for an assert ...), and the WARN missfired when disabling
another pipe than the one with the dp port.
Hence also check whether the port is actually disabled.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=54688
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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@ -1376,7 +1376,8 @@ static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv,
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"PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
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reg, pipe_name(pipe));
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WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_PIPE_B_SELECT),
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WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0
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&& (val & DP_PIPEB_SELECT),
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"IBX PCH dp port still using transcoder B\n");
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}
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@ -1388,7 +1389,8 @@ static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv,
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"PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
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reg, pipe_name(pipe));
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WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_PIPE_B_SELECT),
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WARN(HAS_PCH_IBX(dev_priv->dev) && (val & PORT_ENABLE) == 0
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&& (val & SDVO_PIPE_B_SELECT),
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"IBX PCH hdmi port still using transcoder B\n");
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}
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