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* [PATCH] drm/i915: Use the correct PCH transcoder for LPT/WPT in intel_sanitize_frame_start_delay()
@ 2019-11-28 18:23 ` Ville Syrjala
  0 siblings, 0 replies; 14+ messages in thread
From: Ville Syrjala @ 2019-11-28 18:23 UTC (permalink / raw)
  To: intel-gfx

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

LPT/WPT only have PCH transcoder A. Make sure we poke at its
chicken register instead of some non-existent register when
FDI is being driven by pipe B or C.

Cc: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 53dc310a5f6d..f99dbc3d9696 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -17272,7 +17272,8 @@ static void intel_sanitize_frame_start_delay(const struct intel_crtc_state *crtc
 		val |= TRANS_FRAME_START_DELAY(0);
 		I915_WRITE(reg, val);
 	} else {
-		i915_reg_t reg = TRANS_CHICKEN2(crtc->pipe);
+		enum pipe pch_transcoder = intel_crtc_pch_transcoder(crtc);
+		i915_reg_t reg = TRANS_CHICKEN2(pch_transcoder);
 		u32 val;
 
 		val = I915_READ(reg);
-- 
2.23.0

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^ permalink raw reply related	[flat|nested] 14+ messages in thread

end of thread, other threads:[~2019-11-30  1:03 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2019-11-28 18:23 [PATCH] drm/i915: Use the correct PCH transcoder for LPT/WPT in intel_sanitize_frame_start_delay() Ville Syrjala
2019-11-28 18:23 ` [Intel-gfx] " Ville Syrjala
2019-11-28 20:27 ` ✓ Fi.CI.BAT: success for " Patchwork
2019-11-28 20:27   ` [Intel-gfx] " Patchwork
2019-11-29 11:47 ` [PATCH] " Shankar, Uma
2019-11-29 11:47   ` [Intel-gfx] " Shankar, Uma
2019-11-29 11:56   ` Shankar, Uma
2019-11-29 11:56     ` [Intel-gfx] " Shankar, Uma
2019-11-29 13:50     ` Ville Syrjälä
2019-11-29 13:50       ` [Intel-gfx] " Ville Syrjälä
2019-11-29 17:52       ` Shankar, Uma
2019-11-29 17:52         ` [Intel-gfx] " Shankar, Uma
2019-11-30  1:03 ` ✓ Fi.CI.IGT: success for " Patchwork
2019-11-30  1:03   ` [Intel-gfx] " Patchwork

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