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authorLuke Shumaker <LukeShu@sbcglobal.net>2012-07-07 13:09:53 -0400
committerLuke Shumaker <LukeShu@sbcglobal.net>2012-07-07 13:09:53 -0400
commit44fb7936931db66f6ba7c46f73ebb29d2725fe58 (patch)
tree0be1bc01e36b6aea80bbae6a00f7cee123a162c3 /kernels/linux-libre-lts-rt/i915-fix-ghost-tv-output.patch
parentde83d1a9287e1d73029b1202069e3cefae26bb31 (diff)
parent108181f9a57602fd8d527dafb3b46fc0b59711df (diff)
Merge branch 'master' of ssh://parabolagnulinux.org:1863/srv/git/abslibre
Diffstat (limited to 'kernels/linux-libre-lts-rt/i915-fix-ghost-tv-output.patch')
-rw-r--r--kernels/linux-libre-lts-rt/i915-fix-ghost-tv-output.patch26
1 files changed, 26 insertions, 0 deletions
diff --git a/kernels/linux-libre-lts-rt/i915-fix-ghost-tv-output.patch b/kernels/linux-libre-lts-rt/i915-fix-ghost-tv-output.patch
new file mode 100644
index 000000000..3b631361a
--- /dev/null
+++ b/kernels/linux-libre-lts-rt/i915-fix-ghost-tv-output.patch
@@ -0,0 +1,26 @@
+Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
+Tested-by: Santi <santi@agolina.net>
+---
+ drivers/gpu/drm/i915/intel_tv.c | 9 +++++++++
+ 1 files changed, 9 insertions(+), 0 deletions(-)
+
+diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
+index dc83b7a..c8f67bf 100644
+--- a/drivers/gpu/drm/i915/intel_tv.c
++++ b/drivers/gpu/drm/i915/intel_tv.c
+@@ -1267,6 +1267,15 @@
+ DAC_B_0_7_V |
+ DAC_C_0_7_V);
+
++ /*
++ * The TV sense state should be cleared to zero on cantiga platform. Otherwise
++ * the TV is misdetected. This is hardware requirement.
++ */
++ if (IS_GM45(dev))
++ tv_dac &= ~(TVDAC_STATE_CHG_EN | TVDAC_A_SENSE_CTL |
++ TVDAC_B_SENSE_CTL | TVDAC_C_SENSE_CTL);
++
++
+ I915_WRITE(TV_CTL, tv_ctl);
+ I915_WRITE(TV_DAC, tv_dac);
+ POSTING_READ(TV_DAC);