Attachment 59450 Details for Bug 48266 – This makes HDMI audio work on Linux 3.2.x (0 <= x < 6).

[patch] This makes HDMI audio work on Linux 3.2.x (0 <= x < 6).

fix_intel_hdmi_audio_on_linux_3.2.patch (text/plain), 1.89 KB, created by Johannes Truschnigg on 2012-04-03 12:54:55 UTC

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Filename:

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Creator: Johannes Truschnigg

Created: 2012-04-03 12:54:55 UTC

Size: 1.89 KB

patch

obsolete

>--- ./drivers/gpu/drm/i915/intel_hdmi.c
>+++ ./drivers/gpu/drm/i915/intel_hdmi.c
>@@ -69,7 +69,8 @@ void intel_dip_infoframe_csum(struct dip_infoframe *frame)
> 	frame->checksum = 0;
> 	frame->ecc = 0;
> 
>-	for (i = 0; i < frame->len + DIP_HEADER_SIZE; i++)
>+	/* Header isn't part of the checksum */
>+	for (i = 5; i < frame->len; i++)
> 		sum += data[i];
> 
> 	frame->checksum = 0x100 - sum;
>@@ -103,7 +104,7 @@ static u32 intel_infoframe_flags(struct dip_infoframe *frame)
> 		flags |= VIDEO_DIP_ENABLE_AVI | VIDEO_DIP_FREQ_VSYNC;
> 		break;
> 	case DIP_TYPE_SPD:
>-		flags |= VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_FREQ_VSYNC;
>+		flags |= VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_FREQ_2VSYNC;
> 		break;
> 	default:
> 		DRM_DEBUG_DRIVER("unknown info frame type %d\n", frame->type);
>@@ -164,9 +165,9 @@ static void ironlake_write_infoframe(struct drm_encoder *encoder,
> 
> 	flags = intel_infoframe_index(frame);
> 
>-	val &= ~(VIDEO_DIP_SELECT_MASK | 0xf); /* clear DIP data offset */
>+	val &= ~VIDEO_DIP_SELECT_MASK;
> 
>-	I915_WRITE(reg, VIDEO_DIP_ENABLE | val | flags);
>+	I915_WRITE(reg, val | flags);
> 
> 	for (i = 0; i < len; i += 4) {
> 		I915_WRITE(TVIDEO_DIP_DATA(intel_crtc->pipe), *data);
>@@ -490,7 +491,6 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
> 	struct intel_encoder *intel_encoder;
> 	struct intel_connector *intel_connector;
> 	struct intel_hdmi *intel_hdmi;
>-	int i;
> 
> 	intel_hdmi = kzalloc(sizeof(struct intel_hdmi), GFP_KERNEL);
> 	if (!intel_hdmi)
>@@ -543,14 +543,10 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
> 
> 	intel_hdmi->sdvox_reg = sdvox_reg;
> 
>-	if (!HAS_PCH_SPLIT(dev)) {
>+	if (!HAS_PCH_SPLIT(dev))
> 		intel_hdmi->write_infoframe = i9xx_write_infoframe;
>-		I915_WRITE(VIDEO_DIP_CTL, 0);
>-	} else {
>+	else
> 		intel_hdmi->write_infoframe = ironlake_write_infoframe;
>-		for_each_pipe(i)
>-			I915_WRITE(TVIDEO_DIP_CTL(i), 0);
>-	}
> 
> 	drm_encoder_helper_add(&intel_encoder->base, &intel_hdmi_helper_funcs);

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Attachments on bug 48266: 59450 | 59452

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