Attachment 141841 Details for Bug 107896 – Test Patch for HDMI scrambling issues

[patch] Test Patch for HDMI scrambling issues

hdmi_20_scrambler_cts.patch (text/plain), 1.33 KB, created by Clinton Taylor on 2018-10-03 00:57:52 UTC

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Description:

Filename:

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Creator: Clinton Taylor

Created: 2018-10-03 00:57:52 UTC

Size: 1.33 KB

patch

obsolete

>diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
>index 7f34d39..79ed680 100644
>--- a/drivers/gpu/drm/i915/intel_ddi.c
>+++ b/drivers/gpu/drm/i915/intel_ddi.c
>@@ -1872,7 +1872,7 @@ void intel_ddi_enable_transcoder_func(const struct intel_crtc_state *crtc_state)
> 			temp |= TRANS_DDI_MODE_SELECT_DVI;
> 
> 		if (crtc_state->hdmi_scrambling)
>-			temp |= TRANS_DDI_HDMI_SCRAMBLING_MASK;
>+			temp |= TRANS_DDI_HDMI_SCRAMBLING;
> 		if (crtc_state->hdmi_high_tmds_clock_ratio)
> 			temp |= TRANS_DDI_HIGH_TMDS_CHAR_RATE;
> 	} else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_ANALOG)) {
>diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
>index a2dab0b..fd0fc9e 100644
>--- a/drivers/gpu/drm/i915/intel_hdmi.c
>+++ b/drivers/gpu/drm/i915/intel_hdmi.c
>@@ -2153,6 +2153,12 @@ bool intel_hdmi_handle_sink_scrambling(struct intel_encoder *encoder,
> 		      connector->base.id, connector->name,
> 		      yesno(scrambling), high_tmds_clock_ratio ? 40 : 10);
> 
>+	/* Write source version to Sink */
>+	drm_scdc_writeb(adapter, SCDC_SOURCE_VERSION, 0x01);
>+
>+	/* Write source version to Sink */
>+	drm_scdc_writeb(adapter, SCDC_CONFIG_0, 0x00);
>+
> 	/* Set TMDS bit clock ratio to 1/40 or 1/10, and enable/disable scrambling */
> 	return drm_scdc_set_high_tmds_clock_ratio(adapter,
> 						  high_tmds_clock_ratio) &&

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Attachments on bug 107896: 141516 | 141556 | 141841 | 142162

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