Attachment 71234 Details for Bug 58010 – poke fdi chicken patch

[patch] poke fdi chicken patch

poke-fdi-chicken.patch (text/plain), 1.39 KB, created by Daniel Vetter on 2012-12-09 16:26:36 UTC

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Creator: Daniel Vetter

Created: 2012-12-09 16:26:36 UTC

Size: 1.39 KB

patch

obsolete

>diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
>index 34832bc0..9e9b5c7 100644
>--- a/drivers/gpu/drm/i915/intel_display.c
>+++ b/drivers/gpu/drm/i915/intel_display.c
>@@ -2329,6 +2329,10 @@ static void intel_fdi_normal_train(struct drm_crtc *crtc)
> 	POSTING_READ(reg);
> 	udelay(1000);
> 
>+	I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR |
>+		   FDI_RX_PHASE_SYNC_POINTER_EN);
>+
>+
> 	/* IVB wants error correction enabled */
> 	if (IS_IVYBRIDGE(dev))
> 		I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE |
>@@ -2384,6 +2388,9 @@ static void ironlake_fdi_link_train(struct drm_crtc *crtc)
> 	assert_pipe_enabled(dev_priv, pipe);
> 	assert_plane_enabled(dev_priv, plane);
> 
>+	/* Ironlake workaround, enable clock pointer after FDI enable*/
>+	I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
>+
> 	/* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
> 	   for train result */
> 	reg = FDI_RX_IMR(pipe);
>@@ -2412,11 +2419,6 @@ static void ironlake_fdi_link_train(struct drm_crtc *crtc)
> 	POSTING_READ(reg);
> 	udelay(150);
> 
>-	/* Ironlake workaround, enable clock pointer after FDI enable*/
>-	I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
>-	I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR |
>-		   FDI_RX_PHASE_SYNC_POINTER_EN);
>-
> 	reg = FDI_RX_IIR(pipe);
> 	for (tries = 0; tries < 5; tries++) {
> 		temp = I915_READ(reg);

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Attachments on bug 58010: 71187 | 71234 | 71247

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