drm/radeon/kms: add initial connector properties

This adds:
coherent mode: TMDS coherent mode for atom cards.
scaling mode: LVDS scaler mode
load detect: DAC load detection, DVI-I, VGA, TV
tmds pll: legacy TMDS pll selection
tv standard: TV standard selection.

for later: other TV ones? dvi subconnector selection using std prop

[contains fixes pointed out on dri-devel for atom bios mixups
 by Michel]

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

drivers/gpu/drm/radeon/radeon_atombios.c

@@ -719,9 +719,8 @@ bool radeon_atom_get_clock_info(struct drm_device *dev)
 	return false;
 }
 
-struct radeon_encoder_int_tmds *radeon_atombios_get_tmds_info(struct
-							      radeon_encoder
-							      *encoder)
+bool radeon_atombios_get_tmds_info(struct radeon_encoder *encoder,
+				   struct radeon_encoder_int_tmds *tmds)
 {
 	struct drm_device *dev = encoder->base.dev;
 	struct radeon_device *rdev = dev->dev_private;
@@ -732,7 +731,6 @@ struct radeon_encoder_int_tmds *radeon_atombios_get_tmds_info(struct
 	uint8_t frev, crev;
 	uint16_t maxfreq;
 	int i;
-	struct radeon_encoder_int_tmds *tmds = NULL;
 
 	atom_parse_data_header(mode_info->atom_context, index, NULL, &frev,
 			       &crev, &data_offset);
@@ -742,12 +740,6 @@ struct radeon_encoder_int_tmds *radeon_atombios_get_tmds_info(struct
 				       data_offset);
 
 	if (tmds_info) {
-		tmds =
-		    kzalloc(sizeof(struct radeon_encoder_int_tmds), GFP_KERNEL);
-
-		if (!tmds)
-			return NULL;
-
 		maxfreq = le16_to_cpu(tmds_info->usMaxFrequency);
 		for (i = 0; i < 4; i++) {
 			tmds->tmds_pll[i].freq =
@@ -773,8 +765,9 @@ struct radeon_encoder_int_tmds *radeon_atombios_get_tmds_info(struct
 				break;
 			}
 		}
+		return true;
 	}
-	return tmds;
+	return false;
 }
 
 union lvds_info {

drivers/gpu/drm/radeon/radeon_combios.c

@@ -998,48 +998,37 @@ static const struct radeon_tmds_pll default_tmds_pll[CHIP_LAST][4] = {
 	{{15000, 0xb0155}, {0xffffffff, 0xb01cb}, {0, 0}, {0, 0}},	/* CHIP_RS480 */
 };
 
-static struct radeon_encoder_int_tmds
-    *radeon_legacy_get_tmds_info_from_table(struct radeon_device *rdev)
+bool radeon_legacy_get_tmds_info_from_table(struct radeon_encoder *encoder,
+					    struct radeon_encoder_int_tmds *tmds)
 {
+	struct drm_device *dev = encoder->base.dev;
+	struct radeon_device *rdev = dev->dev_private;
 	int i;
-	struct radeon_encoder_int_tmds *tmds = NULL;
-
-	tmds = kzalloc(sizeof(struct radeon_encoder_int_tmds), GFP_KERNEL);
-
-	if (!tmds)
-		return NULL;
 
 	for (i = 0; i < 4; i++) {
 		tmds->tmds_pll[i].value =
-		    default_tmds_pll[rdev->family][i].value;
+			default_tmds_pll[rdev->family][i].value;
 		tmds->tmds_pll[i].freq = default_tmds_pll[rdev->family][i].freq;
 	}
 
-	return tmds;
+	return true;
 }
 
-struct radeon_encoder_int_tmds *radeon_combios_get_tmds_info(struct
-							     radeon_encoder
-							     *encoder)
+bool radeon_legacy_get_tmds_info_from_combios(struct radeon_encoder *encoder,
+					      struct radeon_encoder_int_tmds *tmds)
 {
 	struct drm_device *dev = encoder->base.dev;
 	struct radeon_device *rdev = dev->dev_private;
 	uint16_t tmds_info;
 	int i, n;
 	uint8_t ver;
-	struct radeon_encoder_int_tmds *tmds = NULL;
 
 	if (rdev->bios == NULL)
-		return radeon_legacy_get_tmds_info_from_table(rdev);
+		return false;
 
 	tmds_info = combios_get_table_offset(dev, COMBIOS_DFP_INFO_TABLE);
 
 	if (tmds_info) {
-		tmds =
-		    kzalloc(sizeof(struct radeon_encoder_int_tmds), GFP_KERNEL);
-
-		if (!tmds)
-			return NULL;
 
 		ver = RBIOS8(tmds_info);
 		DRM_INFO("DFP table revision: %d\n", ver);
@@ -1077,6 +1066,23 @@ struct radeon_encoder_int_tmds *radeon_combios_get_tmds_info(struct
 		}
 	} else
 		DRM_INFO("No TMDS info found in BIOS\n");
+	return true;
+}
+
+struct radeon_encoder_int_tmds *radeon_combios_get_tmds_info(struct radeon_encoder *encoder)
+{
+	struct radeon_encoder_int_tmds *tmds = NULL;
+	bool ret;
+
+	tmds = kzalloc(sizeof(struct radeon_encoder_int_tmds), GFP_KERNEL);
+
+	if (!tmds)
+		return NULL;
+
+	ret = radeon_legacy_get_tmds_info_from_combios(encoder, tmds);
+	if (ret == false)
+		radeon_legacy_get_tmds_info_from_table(encoder, tmds);
+
 	return tmds;
 }