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drm/i915: Handle cdclk limits on broadwell. 

As the comment indicates this can only fail gracefully when
called from compute_config. Fortunately this is now what's happening,
so the fixme can be removed and the DRM_ERROR downgraded.

Link: http://patchwork.freedesktop.org/patch/msgid/1448360945-5723-3-git-send-email-maarten.lankhorst@linux.intel.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Maarten Lankhorst 2015-11-24 11:29:03 +01:00
parent 3c28ff22f6
commit 63ba534ecf
1 changed files with 3 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpu/drm/i915/intel_display.c
View File

@ -9719,14 +9719,10 @@ static int broadwell_modeset_calc_cdclk(struct drm_atomic_state *state)
else
cdclk = 337500;
/*
* FIXME move the cdclk caclulation to
* compute_config() so we can fail gracegully.
*/
if (cdclk > dev_priv->max_cdclk_freq) {
DRM_ERROR("requested cdclk (%d kHz) exceeds max (%d kHz)\n",
cdclk, dev_priv->max_cdclk_freq);
cdclk = dev_priv->max_cdclk_freq;
DRM_DEBUG_KMS("requested cdclk (%d kHz) exceeds max (%d kHz)\n",
cdclk, dev_priv->max_cdclk_freq);
return -EINVAL;
}
to_intel_atomic_state(state)->cdclk = cdclk;