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path: root/drivers/gpu/drm/i915/intel_tv.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_tv.c')
-rw-r--r--drivers/gpu/drm/i915/intel_tv.c53
1 files changed, 25 insertions, 28 deletions
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index ea68992e4416..a43c98e3f077 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -1383,34 +1383,31 @@ intel_tv_detect_type (struct drm_crtc *crtc, struct intel_output *intel_output)
1383 /* 1383 /*
1384 * Detect TV by polling) 1384 * Detect TV by polling)
1385 */ 1385 */
1386 if (intel_output->load_detect_temp) { 1386 save_tv_dac = tv_dac;
1387 /* TV not currently running, prod it with destructive detect */ 1387 tv_ctl = I915_READ(TV_CTL);
1388 save_tv_dac = tv_dac; 1388 save_tv_ctl = tv_ctl;
1389 tv_ctl = I915_READ(TV_CTL); 1389 tv_ctl &= ~TV_ENC_ENABLE;
1390 save_tv_ctl = tv_ctl; 1390 tv_ctl &= ~TV_TEST_MODE_MASK;
1391 tv_ctl &= ~TV_ENC_ENABLE; 1391 tv_ctl |= TV_TEST_MODE_MONITOR_DETECT;
1392 tv_ctl &= ~TV_TEST_MODE_MASK; 1392 tv_dac &= ~TVDAC_SENSE_MASK;
1393 tv_ctl |= TV_TEST_MODE_MONITOR_DETECT; 1393 tv_dac &= ~DAC_A_MASK;
1394 tv_dac &= ~TVDAC_SENSE_MASK; 1394 tv_dac &= ~DAC_B_MASK;
1395 tv_dac &= ~DAC_A_MASK; 1395 tv_dac &= ~DAC_C_MASK;
1396 tv_dac &= ~DAC_B_MASK; 1396 tv_dac |= (TVDAC_STATE_CHG_EN |
1397 tv_dac &= ~DAC_C_MASK; 1397 TVDAC_A_SENSE_CTL |
1398 tv_dac |= (TVDAC_STATE_CHG_EN | 1398 TVDAC_B_SENSE_CTL |
1399 TVDAC_A_SENSE_CTL | 1399 TVDAC_C_SENSE_CTL |
1400 TVDAC_B_SENSE_CTL | 1400 DAC_CTL_OVERRIDE |
1401 TVDAC_C_SENSE_CTL | 1401 DAC_A_0_7_V |
1402 DAC_CTL_OVERRIDE | 1402 DAC_B_0_7_V |
1403 DAC_A_0_7_V | 1403 DAC_C_0_7_V);
1404 DAC_B_0_7_V | 1404 I915_WRITE(TV_CTL, tv_ctl);
1405 DAC_C_0_7_V); 1405 I915_WRITE(TV_DAC, tv_dac);
1406 I915_WRITE(TV_CTL, tv_ctl); 1406 intel_wait_for_vblank(dev);
1407 I915_WRITE(TV_DAC, tv_dac); 1407 tv_dac = I915_READ(TV_DAC);
1408 intel_wait_for_vblank(dev); 1408 I915_WRITE(TV_DAC, save_tv_dac);
1409 tv_dac = I915_READ(TV_DAC); 1409 I915_WRITE(TV_CTL, save_tv_ctl);
1410 I915_WRITE(TV_DAC, save_tv_dac); 1410 intel_wait_for_vblank(dev);
1411 I915_WRITE(TV_CTL, save_tv_ctl);
1412 intel_wait_for_vblank(dev);
1413 }
1414 /* 1411 /*
1415 * A B C 1412 * A B C
1416 * 0 1 1 Composite 1413 * 0 1 1 Composite