drm/radeon: add fake RN50 table for powerpc

This works well enough on a js21, but it would be nice if IBM could supply
more tables for the later Power6/7 machines.

Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 1bee2f9e24a5..08e156a7e4d4 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -1411,6 +1411,11 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
                         rdev->mode_info.connector_table = CT_IMAC_G5_ISIGHT;
                 } else
 #endif /* CONFIG_PPC_PMAC */
+#ifdef CONFIG_PPC64
+                if (ASIC_IS_RN50(rdev))
+                        rdev->mode_info.connector_table = CT_RN50_POWER;
+                else
+#endif
                         rdev->mode_info.connector_table = CT_GENERIC;
         }
 
@@ -1853,6 +1858,33 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
                                             CONNECTOR_OBJECT_ID_SVIDEO,
                                             &hpd);
                 break;
+        case CT_RN50_POWER:
+                DRM_INFO("Connector Table: %d (rn50-power)\n",
+                         rdev->mode_info.connector_table);
+                /* VGA - primary dac */
+                ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_VGA_DDC);
+                hpd.hpd = RADEON_HPD_NONE;
+                radeon_add_legacy_encoder(dev,
+                                          radeon_get_encoder_id(dev,
+                                                                ATOM_DEVICE_CRT1_SUPPORT,
+                                                                1),
+                                          ATOM_DEVICE_CRT1_SUPPORT);
+                radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_CRT1_SUPPORT,
+                                            DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
+                                            CONNECTOR_OBJECT_ID_VGA,
+                                            &hpd);
+                ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_CRT2_DDC);
+                hpd.hpd = RADEON_HPD_NONE;
+                radeon_add_legacy_encoder(dev,
+                                          radeon_get_encoder_id(dev,
+                                                                ATOM_DEVICE_CRT2_SUPPORT,
+                                                                2),
+                                          ATOM_DEVICE_CRT2_SUPPORT);
+                radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT2_SUPPORT,
+                                            DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
+                                            CONNECTOR_OBJECT_ID_VGA,
+                                            &hpd);
+                break;
         default:
                 DRM_INFO("Connector table: %d (invalid)\n",
                          rdev->mode_info.connector_table);