From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
i9xx_crtc_clock_get() no longer populates adjusted_mode.clock, so we
must get the pixel clock from port_clock in intel_crtc_mode_get().
This bug caused Chris's 845g machine to lockup during boot, and it
was introduced in:
commit 18442d08786472c63a0a80c27f92b033dffc26de
Author: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Date: Fri Sep 13 16:00:08 2013 +0300
drm/i915: Fix port_clock and adjusted_mode.clock readout all over
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=69713
Tested-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_display.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 45f0cc3..3b06250 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7539,7 +7539,7 @@ struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
pipe_config.dpll_hw_state.fp1 = I915_READ(FP1(pipe));
i9xx_crtc_clock_get(intel_crtc, &pipe_config);
- mode->clock = pipe_config.adjusted_mode.clock;
+ mode->clock = pipe_config.port_clock / pipe_config.pixel_multiplier;
mode->hdisplay = (htot & 0xffff) + 1;
mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
mode->hsync_start = (hsync & 0xffff) + 1;
--
1.8.1.5
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