[PATCH 1/2] drm/radeon/kms: use drm_detect_hdmi_monitor for picking encoder mode

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* [PATCH 1/2] drm/radeon/kms: use drm_detect_hdmi_monitor for picking encoder mode
@ 2012-01-20 20:03 alexdeucher
  2012-01-20 20:03 ` [PATCH 2/2] drm/radeon/kms: refine TMDS dual link checks alexdeucher
  2012-01-27  8:26 ` [PATCH 1/2] drm/radeon/kms: use drm_detect_hdmi_monitor for picking encoder mode Rafał Miłecki
  0 siblings, 2 replies; 4+ messages in thread
From: alexdeucher @ 2012-01-20 20:03 UTC (permalink / raw)
  To: airlied, dri-devel; +Cc: Alex Deucher

From: Alex Deucher <alexander.deucher@amd.com>

We were previously just checking for audio.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/radeon/atombios_encoders.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index 79a4880..f2f14a2 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -432,7 +432,7 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 	switch (connector->connector_type) {
 	case DRM_MODE_CONNECTOR_DVII:
 	case DRM_MODE_CONNECTOR_HDMIB: /* HDMI-B is basically DL-DVI; analog works fine */
-		if (drm_detect_monitor_audio(radeon_connector->edid) &&
+		if (drm_detect_hdmi_monitor(radeon_connector->edid) &&
 		    radeon_audio)
 			return ATOM_ENCODER_MODE_HDMI;
 		else if (radeon_connector->use_digital)
@@ -443,7 +443,7 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 	case DRM_MODE_CONNECTOR_DVID:
 	case DRM_MODE_CONNECTOR_HDMIA:
 	default:
-		if (drm_detect_monitor_audio(radeon_connector->edid) &&
+		if (drm_detect_hdmi_monitor(radeon_connector->edid) &&
 		    radeon_audio)
 			return ATOM_ENCODER_MODE_HDMI;
 		else
@@ -457,7 +457,7 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 		if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
 		    (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
 			return ATOM_ENCODER_MODE_DP;
-		else if (drm_detect_monitor_audio(radeon_connector->edid) &&
+		else if (drm_detect_hdmi_monitor(radeon_connector->edid) &&
 			 radeon_audio)
 			return ATOM_ENCODER_MODE_HDMI;
 		else
-- 
1.7.7.5

^ permalink raw reply related	[flat|nested] 4+ messages in thread

* [PATCH 2/2] drm/radeon/kms: refine TMDS dual link checks
  2012-01-20 20:03 [PATCH 1/2] drm/radeon/kms: use drm_detect_hdmi_monitor for picking encoder mode alexdeucher
@ 2012-01-20 20:03 ` alexdeucher
  2012-01-27  8:26 ` [PATCH 1/2] drm/radeon/kms: use drm_detect_hdmi_monitor for picking encoder mode Rafał Miłecki
  1 sibling, 0 replies; 4+ messages in thread
From: alexdeucher @ 2012-01-20 20:03 UTC (permalink / raw)
  To: airlied, dri-devel; +Cc: Alex Deucher

From: Alex Deucher <alexander.deucher@amd.com>

HDMI 1.3 defines single link clocks up to 340 Mhz.
Refine the current dual link checks to only enable
dual link for DVI > 165 Mhz or HDMI > 340 Mhz if the
hw supports HDMI 1.3 (DCE3+).

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=44755

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/radeon/atombios_crtc.c     |    4 +-
 drivers/gpu/drm/radeon/atombios_encoders.c |   57 ++++++++-------------
 drivers/gpu/drm/radeon/radeon_encoders.c   |   77 ++++++++++++++++++++++++++++
 drivers/gpu/drm/radeon/radeon_mode.h       |    4 ++
 4 files changed, 105 insertions(+), 37 deletions(-)

diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 807b89b..8919352 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -518,6 +518,7 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
 	int encoder_mode = 0;
 	u32 dp_clock = mode->clock;
 	int bpc = 8;
+	bool is_duallink = false;
 
 	/* reset the pll flags */
 	pll->flags = 0;
@@ -552,6 +553,7 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
 			if (connector && connector->display_info.bpc)
 				bpc = connector->display_info.bpc;
 			encoder_mode = atombios_get_encoder_mode(encoder);
+			is_duallink = radeon_dig_monitor_is_duallink(encoder, mode->clock);
 			if ((radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) ||
 			    (radeon_encoder_get_dp_bridge_encoder_id(encoder) != ENCODER_OBJECT_ID_NONE)) {
 				if (connector) {
@@ -647,7 +649,7 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
 					if (dig->coherent_mode)
 						args.v3.sInput.ucDispPllConfig |=
 							DISPPLL_CONFIG_COHERENT_MODE;
-					if (mode->clock > 165000)
+					if (is_duallink)
 						args.v3.sInput.ucDispPllConfig |=
 							DISPPLL_CONFIG_DUAL_LINK;
 				}
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index f2f14a2..b88c460 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -57,22 +57,6 @@ static inline bool radeon_encoder_is_digital(struct drm_encoder *encoder)
 	}
 }
 
-static struct drm_connector *
-radeon_get_connector_for_encoder_init(struct drm_encoder *encoder)
-{
-	struct drm_device *dev = encoder->dev;
-	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
-	struct drm_connector *connector;
-	struct radeon_connector *radeon_connector;
-
-	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
-		radeon_connector = to_radeon_connector(connector);
-		if (radeon_encoder->devices & radeon_connector->devices)
-			return connector;
-	}
-	return NULL;
-}
-
 static bool radeon_atom_mode_fixup(struct drm_encoder *encoder,
 				   struct drm_display_mode *mode,
 				   struct drm_display_mode *adjusted_mode)
@@ -253,7 +237,7 @@ atombios_dvo_setup(struct drm_encoder *encoder, int action)
 			/* R4xx, R5xx */
 			args.ext_tmds.sXTmdsEncoder.ucEnable = action;
 
-			if (radeon_encoder->pixel_clock > 165000)
+			if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 				args.ext_tmds.sXTmdsEncoder.ucMisc |= PANEL_ENCODER_MISC_DUAL;
 
 			args.ext_tmds.sXTmdsEncoder.ucMisc |= ATOM_PANEL_MISC_888RGB;
@@ -265,7 +249,7 @@ atombios_dvo_setup(struct drm_encoder *encoder, int action)
 			/* DFP1, CRT1, TV1 depending on the type of port */
 			args.dvo.sDVOEncoder.ucDeviceType = ATOM_DEVICE_DFP1_INDEX;
 
-			if (radeon_encoder->pixel_clock > 165000)
+			if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 				args.dvo.sDVOEncoder.usDevAttr.sDigAttrib.ucAttribute |= PANEL_ENCODER_MISC_DUAL;
 			break;
 		case 3:
@@ -349,7 +333,7 @@ atombios_digital_setup(struct drm_encoder *encoder, int action)
 			} else {
 				if (dig->linkb)
 					args.v1.ucMisc |= PANEL_ENCODER_MISC_TMDS_LINKB;
-				if (radeon_encoder->pixel_clock > 165000)
+				if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 					args.v1.ucMisc |= PANEL_ENCODER_MISC_DUAL;
 				/*if (pScrn->rgbBits == 8) */
 				args.v1.ucMisc |= ATOM_PANEL_MISC_888RGB;
@@ -388,7 +372,7 @@ atombios_digital_setup(struct drm_encoder *encoder, int action)
 			} else {
 				if (dig->linkb)
 					args.v2.ucMisc |= PANEL_ENCODER_MISC_TMDS_LINKB;
-				if (radeon_encoder->pixel_clock > 165000)
+				if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 					args.v2.ucMisc |= PANEL_ENCODER_MISC_DUAL;
 			}
 			break;
@@ -587,7 +571,7 @@ atombios_dig_encoder_setup(struct drm_encoder *encoder, int action, int panel_mo
 
 			if (ENCODER_MODE_IS_DP(args.v1.ucEncoderMode))
 				args.v1.ucLaneNum = dp_lane_count;
-			else if (radeon_encoder->pixel_clock > 165000)
+			else if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 				args.v1.ucLaneNum = 8;
 			else
 				args.v1.ucLaneNum = 4;
@@ -622,7 +606,7 @@ atombios_dig_encoder_setup(struct drm_encoder *encoder, int action, int panel_mo
 
 			if (ENCODER_MODE_IS_DP(args.v1.ucEncoderMode))
 				args.v3.ucLaneNum = dp_lane_count;
-			else if (radeon_encoder->pixel_clock > 165000)
+			else if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 				args.v3.ucLaneNum = 8;
 			else
 				args.v3.ucLaneNum = 4;
@@ -662,7 +646,7 @@ atombios_dig_encoder_setup(struct drm_encoder *encoder, int action, int panel_mo
 
 			if (ENCODER_MODE_IS_DP(args.v1.ucEncoderMode))
 				args.v4.ucLaneNum = dp_lane_count;
-			else if (radeon_encoder->pixel_clock > 165000)
+			else if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 				args.v4.ucLaneNum = 8;
 			else
 				args.v4.ucLaneNum = 4;
@@ -806,7 +790,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t
 				if (is_dp)
 					args.v1.usPixelClock =
 						cpu_to_le16(dp_clock / 10);
-				else if (radeon_encoder->pixel_clock > 165000)
+				else if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 					args.v1.usPixelClock = cpu_to_le16((radeon_encoder->pixel_clock / 2) / 10);
 				else
 					args.v1.usPixelClock = cpu_to_le16(radeon_encoder->pixel_clock / 10);
@@ -821,7 +805,8 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t
 
 			if ((rdev->flags & RADEON_IS_IGP) &&
 			    (radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_UNIPHY)) {
-				if (is_dp || (radeon_encoder->pixel_clock <= 165000)) {
+				if (is_dp ||
+				    !radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock)) {
 					if (igp_lane_info & 0x1)
 						args.v1.ucConfig |= ATOM_TRANSMITTER_CONFIG_LANE_0_3;
 					else if (igp_lane_info & 0x2)
@@ -848,7 +833,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t
 			else if (radeon_encoder->devices & (ATOM_DEVICE_DFP_SUPPORT)) {
 				if (dig->coherent_mode)
 					args.v1.ucConfig |= ATOM_TRANSMITTER_CONFIG_COHERENT;
-				if (radeon_encoder->pixel_clock > 165000)
+				if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 					args.v1.ucConfig |= ATOM_TRANSMITTER_CONFIG_8LANE_LINK;
 			}
 			break;
@@ -863,7 +848,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t
 				if (is_dp)
 					args.v2.usPixelClock =
 						cpu_to_le16(dp_clock / 10);
-				else if (radeon_encoder->pixel_clock > 165000)
+				else if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 					args.v2.usPixelClock = cpu_to_le16((radeon_encoder->pixel_clock / 2) / 10);
 				else
 					args.v2.usPixelClock = cpu_to_le16(radeon_encoder->pixel_clock / 10);
@@ -891,7 +876,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t
 			} else if (radeon_encoder->devices & (ATOM_DEVICE_DFP_SUPPORT)) {
 				if (dig->coherent_mode)
 					args.v2.acConfig.fCoherentMode = 1;
-				if (radeon_encoder->pixel_clock > 165000)
+				if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 					args.v2.acConfig.fDualLinkConnector = 1;
 			}
 			break;
@@ -906,7 +891,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t
 				if (is_dp)
 					args.v3.usPixelClock =
 						cpu_to_le16(dp_clock / 10);
-				else if (radeon_encoder->pixel_clock > 165000)
+				else if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 					args.v3.usPixelClock = cpu_to_le16((radeon_encoder->pixel_clock / 2) / 10);
 				else
 					args.v3.usPixelClock = cpu_to_le16(radeon_encoder->pixel_clock / 10);
@@ -914,7 +899,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t
 
 			if (is_dp)
 				args.v3.ucLaneNum = dp_lane_count;
-			else if (radeon_encoder->pixel_clock > 165000)
+			else if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 				args.v3.ucLaneNum = 8;
 			else
 				args.v3.ucLaneNum = 4;
@@ -951,7 +936,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t
 			else if (radeon_encoder->devices & (ATOM_DEVICE_DFP_SUPPORT)) {
 				if (dig->coherent_mode)
 					args.v3.acConfig.fCoherentMode = 1;
-				if (radeon_encoder->pixel_clock > 165000)
+				if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 					args.v3.acConfig.fDualLinkConnector = 1;
 			}
 			break;
@@ -966,7 +951,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t
 				if (is_dp)
 					args.v4.usPixelClock =
 						cpu_to_le16(dp_clock / 10);
-				else if (radeon_encoder->pixel_clock > 165000)
+				else if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 					args.v4.usPixelClock = cpu_to_le16((radeon_encoder->pixel_clock / 2) / 10);
 				else
 					args.v4.usPixelClock = cpu_to_le16(radeon_encoder->pixel_clock / 10);
@@ -974,7 +959,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t
 
 			if (is_dp)
 				args.v4.ucLaneNum = dp_lane_count;
-			else if (radeon_encoder->pixel_clock > 165000)
+			else if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 				args.v4.ucLaneNum = 8;
 			else
 				args.v4.ucLaneNum = 4;
@@ -1014,7 +999,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t
 			else if (radeon_encoder->devices & (ATOM_DEVICE_DFP_SUPPORT)) {
 				if (dig->coherent_mode)
 					args.v4.acConfig.fCoherentMode = 1;
-				if (radeon_encoder->pixel_clock > 165000)
+				if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 					args.v4.acConfig.fDualLinkConnector = 1;
 			}
 			break;
@@ -1137,7 +1122,7 @@ atombios_external_encoder_setup(struct drm_encoder *encoder,
 				if (dp_clock == 270000)
 					args.v1.sDigEncoder.ucConfig |= ATOM_ENCODER_CONFIG_DPLINKRATE_2_70GHZ;
 				args.v1.sDigEncoder.ucLaneNum = dp_lane_count;
-			} else if (radeon_encoder->pixel_clock > 165000)
+			} else if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 				args.v1.sDigEncoder.ucLaneNum = 8;
 			else
 				args.v1.sDigEncoder.ucLaneNum = 4;
@@ -1156,7 +1141,7 @@ atombios_external_encoder_setup(struct drm_encoder *encoder,
 				else if (dp_clock == 540000)
 					args.v3.sExtEncoder.ucConfig |= EXTERNAL_ENCODER_CONFIG_V3_DPLINKRATE_5_40GHZ;
 				args.v3.sExtEncoder.ucLaneNum = dp_lane_count;
-			} else if (radeon_encoder->pixel_clock > 165000)
+			} else if (radeon_dig_monitor_is_duallink(encoder, radeon_encoder->pixel_clock))
 				args.v3.sExtEncoder.ucLaneNum = 8;
 			else
 				args.v3.sExtEncoder.ucLaneNum = 4;
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index 4b27efa..9419c51 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -202,6 +202,22 @@ radeon_get_connector_for_encoder(struct drm_encoder *encoder)
 	return NULL;
 }
 
+struct drm_connector *
+radeon_get_connector_for_encoder_init(struct drm_encoder *encoder)
+{
+	struct drm_device *dev = encoder->dev;
+	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+	struct drm_connector *connector;
+	struct radeon_connector *radeon_connector;
+
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+		radeon_connector = to_radeon_connector(connector);
+		if (radeon_encoder->devices & radeon_connector->devices)
+			return connector;
+	}
+	return NULL;
+}
+
 struct drm_encoder *radeon_get_external_encoder(struct drm_encoder *encoder)
 {
 	struct drm_device *dev = encoder->dev;
@@ -288,3 +304,64 @@ void radeon_panel_mode_fixup(struct drm_encoder *encoder,
 
 }
 
+bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder,
+				    u32 pixel_clock)
+{
+	struct drm_device *dev = encoder->dev;
+	struct radeon_device *rdev = dev->dev_private;
+	struct drm_connector *connector;
+	struct radeon_connector *radeon_connector;
+	struct radeon_connector_atom_dig *dig_connector;
+
+	connector = radeon_get_connector_for_encoder(encoder);
+	/* if we don't have an active device yet, just use one of
+	 * the connectors tied to the encoder.
+	 */
+	if (!connector)
+		connector = radeon_get_connector_for_encoder_init(encoder);
+	radeon_connector = to_radeon_connector(connector);
+
+	switch (connector->connector_type) {
+	case DRM_MODE_CONNECTOR_DVII:
+	case DRM_MODE_CONNECTOR_HDMIB:
+		if (radeon_connector->use_digital) {
+			/* HDMI 1.3 supports up to 340 Mhz over single link */
+			if (ASIC_IS_DCE3(rdev) && drm_detect_hdmi_monitor(radeon_connector->edid)) {
+				if (pixel_clock > 340000)
+					return true;
+				else
+					return false;
+			} else {
+				if (pixel_clock > 165000)
+					return true;
+				else
+					return false;
+			}
+		} else
+			return false;
+	case DRM_MODE_CONNECTOR_DVID:
+	case DRM_MODE_CONNECTOR_HDMIA:
+	case DRM_MODE_CONNECTOR_DisplayPort:
+		dig_connector = radeon_connector->con_priv;
+		if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
+		    (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
+			return false;
+		else {
+			/* HDMI 1.3 supports up to 340 Mhz over single link */
+			if (ASIC_IS_DCE3(rdev) && drm_detect_hdmi_monitor(radeon_connector->edid)) {
+				if (pixel_clock > 340000)
+					return true;
+				else
+					return false;
+			} else {
+				if (pixel_clock > 165000)
+					return true;
+				else
+					return false;
+			}
+		}
+	default:
+		return false;
+	}
+}
+
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index d34dcb6..4330e32 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -467,6 +467,10 @@ radeon_atombios_get_tv_info(struct radeon_device *rdev);
 
 extern struct drm_connector *
 radeon_get_connector_for_encoder(struct drm_encoder *encoder);
+extern struct drm_connector *
+radeon_get_connector_for_encoder_init(struct drm_encoder *encoder);
+extern bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder,
+				    u32 pixel_clock);
 
 extern u16 radeon_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder);
 extern u16 radeon_connector_encoder_get_dp_bridge_encoder_id(struct drm_connector *connector);
-- 
1.7.7.5

^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [PATCH 1/2] drm/radeon/kms: use drm_detect_hdmi_monitor for picking encoder mode
  2012-01-20 20:03 [PATCH 1/2] drm/radeon/kms: use drm_detect_hdmi_monitor for picking encoder mode alexdeucher
  2012-01-20 20:03 ` [PATCH 2/2] drm/radeon/kms: refine TMDS dual link checks alexdeucher
@ 2012-01-27  8:26 ` Rafał Miłecki
  2012-01-27 12:48   ` Christian König
  1 sibling, 1 reply; 4+ messages in thread
From: Rafał Miłecki @ 2012-01-27  8:26 UTC (permalink / raw)
  To: alexdeucher; +Cc: Alex Deucher, dri-devel

2012/1/20  <alexdeucher@gmail.com>:
> From: Alex Deucher <alexander.deucher@amd.com>
>
> We were previously just checking for audio.

So... Does every hdmi_monitor supports audio? Or should it rather be
if (drm_detect_monitor_audio(radeon_connector->edid) &&
drm_detect_hdmi_monitor(radeon_connector->edid))
?

Sorry, I'm not familiar enough with EDID.

-- 
Rafał
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: Re: [PATCH 1/2] drm/radeon/kms: use drm_detect_hdmi_monitor for picking encoder mode
  2012-01-27  8:26 ` [PATCH 1/2] drm/radeon/kms: use drm_detect_hdmi_monitor for picking encoder mode Rafał Miłecki
@ 2012-01-27 12:48   ` Christian König
  0 siblings, 0 replies; 4+ messages in thread
From: Christian König @ 2012-01-27 12:48 UTC (permalink / raw)
  To: Rafał Miłecki; +Cc: Alex Deucher, dri-devel

On -10.01.-28163 20:59, Rafał Miłecki wrote:
> 2012/1/20<alexdeucher@gmail.com>:
>> From: Alex Deucher<alexander.deucher@amd.com>
>>
>> We were previously just checking for audio.
> So... Does every hdmi_monitor supports audio? Or should it rather be
> if (drm_detect_monitor_audio(radeon_connector->edid)&&
> drm_detect_hdmi_monitor(radeon_connector->edid))
> ?
>
> Sorry, I'm not familiar enough with EDID.

IIRC HDMI is more than just Audio, so it is possible for a TV to 
announce support for HDMI but not Audio.

So setting the decoder moder should depend on whether or not a TV 
announces HDMI support, but actually sending audio should depend on the 
supported audio capabilities.

Christian.
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^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2012-01-27 12:48 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-01-20 20:03 [PATCH 1/2] drm/radeon/kms: use drm_detect_hdmi_monitor for picking encoder mode alexdeucher
2012-01-20 20:03 ` [PATCH 2/2] drm/radeon/kms: refine TMDS dual link checks alexdeucher
2012-01-27  8:26 ` [PATCH 1/2] drm/radeon/kms: use drm_detect_hdmi_monitor for picking encoder mode Rafał Miłecki
2012-01-27 12:48   ` Christian König

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