Commit 623e01e5 authored May 22, 2015 by Ville Syrjälä Committed by Daniel Vetter May 29, 2015

drm/i915: Warn when cdclk for the platforms is not known



Print a warning if we fall through the .get_display_clock_speed() function
pointer setup. We end up assuming a 133MHz cdclk which should mean that
at least we avoid any 0 deivisions and whatnot. But this could at least
help remind people that they have to provide this function for new platforms.

v2: Rebased to the latest
v3: Rebased to the latest

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v1)
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

parent 34edce2f

drivers/gpu/drm/i915/intel_display.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -14598,9 +14598,11 @@ static void intel_init_display(struct drm_device *dev)
		else if (IS_I85X(dev))
		dev_priv->display.get_display_clock_speed =
		i85x_get_display_clock_speed;
		else /* 830 */
		else { /* 830 */
		WARN(!IS_I830(dev), "Unknown platform. Assuming 133 MHz CDCLK\n");
		dev_priv->display.get_display_clock_speed =
		i830_get_display_clock_speed;
		}

		if (IS_GEN5(dev)) {
		dev_priv->display.fdi_link_train = ironlake_fdi_link_train;