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drm/i915: Extend DSL readout fix to BDW and SKL. 

Those platforms have the same bug as haswell, and the same fix applies
to them.

The original HSW fix that this extends is

commit 41b578fb0e
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Tue Sep 22 12:15:54 2015 -0700

    drm/i915: workaround bad DSL readout v3

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: stable@vger.kernel.org # v4.3
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91579
Link: http://patchwork.freedesktop.org/patch/msgid/1446535913-31970-3-git-send-email-maarten.lankhorst@linux.intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Maarten Lankhorst 2015-11-03 08:31:41 +01:00 committed by Jani Nikula
parent 99106bc17e
commit b291681926
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/i915_irq.c
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@ -749,7 +749,7 @@ static int __intel_get_crtc_scanline(struct intel_crtc *crtc)
* problem. We may need to extend this to include other platforms,
* but so far testing only shows the problem on HSW.
*/
if (IS_HASWELL(dev) && !position) {
if (HAS_DDI(dev) && !position) {
int i, temp;
for (i = 0; i < 100; i++) {