1 files changed, 9 insertions, 69 deletions

diff --git a/drivers/gpu/drm/msm/dp/dp_panel.c b/drivers/gpu/drm/msm/dp/dp_panel.c
index 15b7f6c7146e..ad5d55bf009d 100644
--- a/drivers/gpu/drm/msm/dp/dp_panel.c
+++ b/drivers/gpu/drm/msm/dp/dp_panel.c
@@ -16,9 +16,6 @@
 
 #define DP_INTF_CONFIG_DATABUS_WIDEN     BIT(4)
 
-#define DP_MAX_NUM_DP_LANES	4
-#define DP_LINK_RATE_HBR2	540000 /* kbytes */
-
 struct msm_dp_panel_private {
 	struct device *dev;
 	struct drm_device *drm_dev;
@@ -91,6 +88,7 @@ static int msm_dp_panel_read_dpcd(struct msm_dp_panel *msm_dp_panel)
 	int rc, max_lttpr_lanes, max_lttpr_rate;
 	struct msm_dp_panel_private *panel;
 	struct msm_dp_link_info *link_info;
+	struct msm_dp_link *link;
 	u8 *dpcd, major, minor;
 
 	panel = container_of(msm_dp_panel, struct msm_dp_panel_private, msm_dp_panel);
@@ -105,16 +103,20 @@ static int msm_dp_panel_read_dpcd(struct msm_dp_panel *msm_dp_panel)
 	major = (link_info->revision >> 4) & 0x0f;
 	minor = link_info->revision & 0x0f;
 
+	link = panel->link;
+	drm_dbg_dp(panel->drm_dev, "max_lanes=%d max_link_rate=%d\n",
+		   link->max_dp_lanes, link->max_dp_link_rate);
+
 	link_info->rate = drm_dp_max_link_rate(dpcd);
 	link_info->num_lanes = drm_dp_max_lane_count(dpcd);
 
 	/* Limit data lanes from data-lanes of endpoint property of dtsi */
-	if (link_info->num_lanes > msm_dp_panel->max_dp_lanes)
-		link_info->num_lanes = msm_dp_panel->max_dp_lanes;
+	if (link_info->num_lanes > link->max_dp_lanes)
+		link_info->num_lanes = link->max_dp_lanes;
 
 	/* Limit link rate from link-frequencies of endpoint property of dtsi */
-	if (link_info->rate > msm_dp_panel->max_dp_link_rate)
-		link_info->rate = msm_dp_panel->max_dp_link_rate;
+	if (link_info->rate > link->max_dp_link_rate)
+		link_info->rate = link->max_dp_link_rate;
 
 	/* Limit data lanes from LTTPR capabilities, if any */
 	max_lttpr_lanes = drm_dp_lttpr_max_lane_count(panel->link->lttpr_common_caps);
@@ -173,9 +175,6 @@ int msm_dp_panel_read_sink_caps(struct msm_dp_panel *msm_dp_panel,
 
 	panel = container_of(msm_dp_panel, struct msm_dp_panel_private, msm_dp_panel);
 
-	drm_dbg_dp(panel->drm_dev, "max_lanes=%d max_link_rate=%d\n",
-		msm_dp_panel->max_dp_lanes, msm_dp_panel->max_dp_link_rate);
-
 	rc = msm_dp_panel_read_dpcd(msm_dp_panel);
 	if (rc) {
 		DRM_ERROR("read dpcd failed %d\n", rc);
@@ -648,60 +647,6 @@ int msm_dp_panel_init_panel_info(struct msm_dp_panel *msm_dp_panel)
 	return 0;
 }
 
-static u32 msm_dp_panel_link_frequencies(struct device_node *of_node)
-{
-	struct device_node *endpoint;
-	u64 frequency = 0;
-	int cnt;
-
-	endpoint = of_graph_get_endpoint_by_regs(of_node, 1, 0); /* port@1 */
-	if (!endpoint)
-		return 0;
-
-	cnt = of_property_count_u64_elems(endpoint, "link-frequencies");
-
-	if (cnt > 0)
-		of_property_read_u64_index(endpoint, "link-frequencies",
-						cnt - 1, &frequency);
-	of_node_put(endpoint);
-
-	do_div(frequency,
-		10 * /* from symbol rate to link rate */
-		1000); /* kbytes */
-
-	return frequency;
-}
-
-static int msm_dp_panel_parse_dt(struct msm_dp_panel *msm_dp_panel)
-{
-	struct msm_dp_panel_private *panel;
-	struct device_node *of_node;
-	int cnt;
-
-	panel = container_of(msm_dp_panel, struct msm_dp_panel_private, msm_dp_panel);
-	of_node = panel->dev->of_node;
-
-	/*
-	 * data-lanes is the property of msm_dp_out endpoint
-	 */
-	cnt = drm_of_get_data_lanes_count_ep(of_node, 1, 0, 1, DP_MAX_NUM_DP_LANES);
-	if (cnt < 0) {
-		/* legacy code, data-lanes is the property of mdss_dp node */
-		cnt = drm_of_get_data_lanes_count(of_node, 1, DP_MAX_NUM_DP_LANES);
-	}
-
-	if (cnt > 0)
-		msm_dp_panel->max_dp_lanes = cnt;
-	else
-		msm_dp_panel->max_dp_lanes = DP_MAX_NUM_DP_LANES; /* 4 lanes */
-
-	msm_dp_panel->max_dp_link_rate = msm_dp_panel_link_frequencies(of_node);
-	if (!msm_dp_panel->max_dp_link_rate)
-		msm_dp_panel->max_dp_link_rate = DP_LINK_RATE_HBR2;
-
-	return 0;
-}
-
 struct msm_dp_panel *msm_dp_panel_get(struct device *dev, struct drm_dp_aux *aux,
 			      struct msm_dp_link *link,
 			      void __iomem *link_base,
@@ -709,7 +654,6 @@ struct msm_dp_panel *msm_dp_panel_get(struct device *dev, struct drm_dp_aux *aux
 {
 	struct msm_dp_panel_private *panel;
 	struct msm_dp_panel *msm_dp_panel;
-	int ret;
 
 	if (!dev || !aux || !link) {
 		DRM_ERROR("invalid input\n");
@@ -729,10 +673,6 @@ struct msm_dp_panel *msm_dp_panel_get(struct device *dev, struct drm_dp_aux *aux
 	msm_dp_panel = &panel->msm_dp_panel;
 	msm_dp_panel->max_bw_code = DP_LINK_BW_8_1;
 
-	ret = msm_dp_panel_parse_dt(msm_dp_panel);
-	if (ret)
-		return ERR_PTR(ret);
-
 	return msm_dp_panel;
 }