[PATCH 2/2] drm/radeon: add a connector table for the Sun XVR-300

[Imre Kaloz <kaloz@kernel.org>]

The Sun XVR-300 is a FireMV 2200 PCIe (RV370) board with an
FCode-only Open Firmware ROM and no COMBIOS to parse, so the
generic connector table leaves both DVI-I outputs undetected. Both
XVR-300 SKUs report device ID 5b64 with an ATI subsystem ID rather
than Sun's, so match the OF node name prefix instead. The table
comes from the board's FCode.

Signed-off-by: Imre Kaloz <kaloz@kernel.org>
---
 drivers/gpu/drm/radeon/radeon_combios.c | 51 +++++++++++++++++++++++++
 drivers/gpu/drm/radeon/radeon_mode.h    |  3 +-
 2 files changed, 53 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index b3e7a747f11e..096f953c67be 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -25,6 +25,7 @@
  *          Alex Deucher
  */
 
+#include <linux/of.h>
 #include <linux/pci.h>
 
 #include <drm/drm_device.h>
@@ -1512,6 +1513,14 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
 			rdev->mode_info.connector_table = CT_RN50_POWER;
 		else
 #endif
+		if (of_node_name_prefix(rdev->pdev->dev.of_node, "SUNW,XVR-300"))
+			/* FireMV 2200 PCIe with FCode-only ROM, no COMBIOS
+			 * to parse; both XVR-300 SKUs share device ID 5b64
+			 * with an ATI subsystem ID, so match the OF node
+			 * name instead.
+			 */
+			rdev->mode_info.connector_table = CT_SUN_XVR300;
+		else
 			rdev->mode_info.connector_table = CT_GENERIC;
 	}
 
@@ -2187,6 +2196,48 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
 					    CONNECTOR_OBJECT_ID_SVIDEO,
 					    &hpd);
 		break;
+	case CT_SUN_XVR300:
+		DRM_INFO("Connector Table: %d (sun xvr-300)\n",
+			 rdev->mode_info.connector_table);
+		/* DVI-I - internal tmds, tv dac */
+		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_DVI, 0, 0);
+		hpd.hpd = RADEON_HPD_1;
+		radeon_add_legacy_encoder(dev,
+					  radeon_get_encoder_enum(dev,
+								ATOM_DEVICE_DFP1_SUPPORT,
+								0),
+					  ATOM_DEVICE_DFP1_SUPPORT);
+		radeon_add_legacy_encoder(dev,
+					  radeon_get_encoder_enum(dev,
+								ATOM_DEVICE_CRT2_SUPPORT,
+								2),
+					  ATOM_DEVICE_CRT2_SUPPORT);
+		radeon_add_legacy_connector(dev, 0,
+					    ATOM_DEVICE_DFP1_SUPPORT |
+					    ATOM_DEVICE_CRT2_SUPPORT,
+					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
+					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
+					    &hpd);
+		/* DVI-I - sil164 dvo, primary dac */
+		ddc_i2c = combios_setup_i2c_bus(rdev, DDC_VGA, 0, 0);
+		hpd.hpd = RADEON_HPD_2;
+		radeon_add_legacy_encoder(dev,
+					  radeon_get_encoder_enum(dev,
+								ATOM_DEVICE_DFP2_SUPPORT,
+								0),
+					  ATOM_DEVICE_DFP2_SUPPORT);
+		radeon_add_legacy_encoder(dev,
+					  radeon_get_encoder_enum(dev,
+								ATOM_DEVICE_CRT1_SUPPORT,
+								1),
+					  ATOM_DEVICE_CRT1_SUPPORT);
+		radeon_add_legacy_connector(dev, 1,
+					    ATOM_DEVICE_DFP2_SUPPORT |
+					    ATOM_DEVICE_CRT1_SUPPORT,
+					    DRM_MODE_CONNECTOR_DVII, &ddc_i2c,
+					    CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I,
+					    &hpd);
+		break;
 	default:
 		DRM_INFO("Connector table: %d (invalid)\n",
 			 rdev->mode_info.connector_table);
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 031a3bf6fe0a..6a16d821915d 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -226,7 +226,8 @@ enum radeon_connector_table {
 	CT_MAC_X800,
 	CT_MAC_G5_9600,
 	CT_SAM440EP,
-	CT_MAC_G4_SILVER
+	CT_MAC_G4_SILVER,
+	CT_SUN_XVR300
 };
 
 enum radeon_dvo_chip {
-- 
2.47.3