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

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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 <[email protected]>
Date:   Tue Sep 22 12:15:54 2015 -0700

    drm/i915: workaround bad DSL readout v3

Signed-off-by: Maarten Lankhorst <[email protected]>
Acked-by: Ville Syrjälä <[email protected]>
Cc: [email protected] # 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 <[email protected]>
This commit is contained in:
Maarten Lankhorst 2015-11-03 08:31:41 +01:00 • committed by Jani Nikula
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++) {