[RFC v4 10/25] drm/connector: Add drm_connector_has_preferred_mode/pick_cmdline_mode()

["Noralf Trønnes" <noralf@tronnes.org>]

Move them over from drm_fb_helper since they are connector functions.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
---
 drivers/gpu/drm/drm_connector.c    | 94 ++++++++++++++++++++++++++++++++++++++
 drivers/gpu/drm/drm_fb_helper.c    | 75 ++----------------------------
 drivers/gpu/drm/i915/intel_fbdev.c |  7 +--
 include/drm/drm_connector.h        |  6 +++
 include/drm/drm_fb_helper.h        | 19 --------
 5 files changed, 108 insertions(+), 93 deletions(-)

diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index b3cde897cd80..b9eb143d70fc 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -1760,3 +1760,97 @@ struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
 	return tg;
 }
 EXPORT_SYMBOL(drm_mode_create_tile_group);
+
+/**
+ * drm_connector_has_preferred_mode() - Lookup preferred display mode
+ * @connector: DRM connector
+ * @width: Max width
+ * @height: Max height
+ *
+ * Look for a preferred display mode within the bounds of @width and @height
+ * (inclusive).
+ *
+ * Returns:
+ * A &drm_display_mode or NULL.
+ */
+struct drm_display_mode *
+drm_connector_has_preferred_mode(struct drm_connector *connector,
+				 int width, int height)
+{
+	struct drm_display_mode *mode;
+
+	list_for_each_entry(mode, &connector->modes, head) {
+		if (mode->hdisplay > width || mode->vdisplay > height)
+			continue;
+		if (mode->type & DRM_MODE_TYPE_PREFERRED)
+			return mode;
+	}
+
+	return NULL;
+}
+EXPORT_SYMBOL(drm_connector_has_preferred_mode);
+
+/**
+ * drm_connector_pick_cmdline_mode() - Get commandline display mode
+ * @connector: DRM connector
+ *
+ * Return the display mode specified on the kernel commandline or NULL if not
+ * specified.
+ *
+ * Returns:
+ * A &drm_display_mode or NULL.
+ */
+struct drm_display_mode *
+drm_connector_pick_cmdline_mode(struct drm_connector *connector)
+{
+	struct drm_cmdline_mode *cmdline_mode;
+	struct drm_display_mode *mode;
+	bool prefer_non_interlace;
+
+	cmdline_mode = &connector->cmdline_mode;
+	if (!cmdline_mode->specified)
+		return NULL;
+
+	/* attempt to find a matching mode in the list of modes
+	 *  we have gotten so far, if not add a CVT mode that conforms
+	 */
+	if (cmdline_mode->rb || cmdline_mode->margins)
+		goto create_mode;
+
+	prefer_non_interlace = !cmdline_mode->interlace;
+again:
+	list_for_each_entry(mode, &connector->modes, head) {
+		/* check width/height */
+		if (mode->hdisplay != cmdline_mode->xres ||
+		    mode->vdisplay != cmdline_mode->yres)
+			continue;
+
+		if (cmdline_mode->refresh_specified) {
+			if (mode->vrefresh != cmdline_mode->refresh)
+				continue;
+		}
+
+		if (cmdline_mode->interlace) {
+			if (!(mode->flags & DRM_MODE_FLAG_INTERLACE))
+				continue;
+		} else if (prefer_non_interlace) {
+			if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+				continue;
+		}
+
+		return mode;
+	}
+
+	if (prefer_non_interlace) {
+		prefer_non_interlace = false;
+		goto again;
+	}
+
+create_mode:
+	mode = drm_mode_create_from_cmdline_mode(connector->dev,
+						 cmdline_mode);
+	list_add(&mode->head, &connector->modes);
+
+	return mode;
+}
+EXPORT_SYMBOL(drm_connector_pick_cmdline_mode);
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 785a2f5d2647..b992f59dad30 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -1774,78 +1774,11 @@ static int drm_fb_helper_probe_connector_modes(struct drm_fb_helper *fb_helper,
 	return count;
 }
 
-struct drm_display_mode *drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector, int width, int height)
-{
-	struct drm_display_mode *mode;
-
-	list_for_each_entry(mode, &fb_connector->connector->modes, head) {
-		if (mode->hdisplay > width ||
-		    mode->vdisplay > height)
-			continue;
-		if (mode->type & DRM_MODE_TYPE_PREFERRED)
-			return mode;
-	}
-	return NULL;
-}
-EXPORT_SYMBOL(drm_has_preferred_mode);
-
 static bool drm_has_cmdline_mode(struct drm_fb_helper_connector *fb_connector)
 {
 	return fb_connector->connector->cmdline_mode.specified;
 }
 
-struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn)
-{
-	struct drm_cmdline_mode *cmdline_mode;
-	struct drm_display_mode *mode;
-	bool prefer_non_interlace;
-
-	cmdline_mode = &fb_helper_conn->connector->cmdline_mode;
-	if (cmdline_mode->specified == false)
-		return NULL;
-
-	/* attempt to find a matching mode in the list of modes
-	 *  we have gotten so far, if not add a CVT mode that conforms
-	 */
-	if (cmdline_mode->rb || cmdline_mode->margins)
-		goto create_mode;
-
-	prefer_non_interlace = !cmdline_mode->interlace;
-again:
-	list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) {
-		/* check width/height */
-		if (mode->hdisplay != cmdline_mode->xres ||
-		    mode->vdisplay != cmdline_mode->yres)
-			continue;
-
-		if (cmdline_mode->refresh_specified) {
-			if (mode->vrefresh != cmdline_mode->refresh)
-				continue;
-		}
-
-		if (cmdline_mode->interlace) {
-			if (!(mode->flags & DRM_MODE_FLAG_INTERLACE))
-				continue;
-		} else if (prefer_non_interlace) {
-			if (mode->flags & DRM_MODE_FLAG_INTERLACE)
-				continue;
-		}
-		return mode;
-	}
-
-	if (prefer_non_interlace) {
-		prefer_non_interlace = false;
-		goto again;
-	}
-
-create_mode:
-	mode = drm_mode_create_from_cmdline_mode(fb_helper_conn->connector->dev,
-						 cmdline_mode);
-	list_add(&mode->head, &fb_helper_conn->connector->modes);
-	return mode;
-}
-EXPORT_SYMBOL(drm_pick_cmdline_mode);
-
 static bool drm_connector_enabled(struct drm_connector *connector, bool strict)
 {
 	bool enable;
@@ -1916,7 +1849,7 @@ static bool drm_target_cloned(struct drm_fb_helper *fb_helper,
 		if (!enabled[i])
 			continue;
 		fb_helper_conn = fb_helper->connector_info[i];
-		modes[i] = drm_pick_cmdline_mode(fb_helper_conn);
+		modes[i] = drm_connector_pick_cmdline_mode(fb_helper_conn->connector);
 		if (!modes[i]) {
 			can_clone = false;
 			break;
@@ -2040,11 +1973,11 @@ static bool drm_target_preferred(struct drm_fb_helper *fb_helper,
 			      fb_helper_conn->connector->base.id);
 
 		/* got for command line mode first */
-		modes[i] = drm_pick_cmdline_mode(fb_helper_conn);
+		modes[i] = drm_connector_pick_cmdline_mode(fb_helper_conn->connector);
 		if (!modes[i]) {
 			DRM_DEBUG_KMS("looking for preferred mode on connector %d %d\n",
 				      fb_helper_conn->connector->base.id, fb_helper_conn->connector->tile_group ? fb_helper_conn->connector->tile_group->id : 0);
-			modes[i] = drm_has_preferred_mode(fb_helper_conn, width, height);
+			modes[i] = drm_connector_has_preferred_mode(fb_helper_conn->connector, width, height);
 		}
 		/* No preferred modes, pick one off the list */
 		if (!modes[i] && !list_empty(&fb_helper_conn->connector->modes)) {
@@ -2097,7 +2030,7 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
 		my_score++;
 	if (drm_has_cmdline_mode(fb_helper_conn))
 		my_score++;
-	if (drm_has_preferred_mode(fb_helper_conn, width, height))
+	if (drm_connector_has_preferred_mode(connector, width, height))
 		my_score++;
 
 	connector_funcs = connector->helper_private;
diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c
index 89592ecc44ca..a4ab8575a72e 100644
--- a/drivers/gpu/drm/i915/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/intel_fbdev.c
@@ -421,14 +421,15 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper,
 			      connector->name);
 
 		/* go for command line mode first */
-		modes[i] = drm_pick_cmdline_mode(fb_conn);
+		modes[i] = drm_connector_pick_cmdline_mode(connector);
 
 		/* try for preferred next */
 		if (!modes[i]) {
 			DRM_DEBUG_KMS("looking for preferred mode on connector %s %d\n",
 				      connector->name, connector->has_tile);
-			modes[i] = drm_has_preferred_mode(fb_conn, width,
-							  height);
+			modes[i] = drm_connector_has_preferred_mode(connector,
+								    width,
+								    height);
 		}
 
 		/* No preferred mode marked by the EDID? Are there any modes? */
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 675cc3f8cf85..9cb4ca42373c 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1163,4 +1163,10 @@ void drm_connector_list_iter_end(struct drm_connector_list_iter *iter);
 #define drm_for_each_connector_iter(connector, iter) \
 	while ((connector = drm_connector_list_iter_next(iter)))
 
+struct drm_display_mode *
+drm_connector_has_preferred_mode(struct drm_connector *connector,
+				 int width, int height);
+struct drm_display_mode *
+drm_connector_pick_cmdline_mode(struct drm_connector *connector);
+
 #endif
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index e2df40ad5063..f379ef6d6085 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -311,11 +311,6 @@ int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel);
 int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);
 int drm_fb_helper_debug_enter(struct fb_info *info);
 int drm_fb_helper_debug_leave(struct fb_info *info);
-struct drm_display_mode *
-drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector,
-			int width, int height);
-struct drm_display_mode *
-drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn);
 
 int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, struct drm_connector *connector);
 int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
@@ -510,20 +505,6 @@ static inline int drm_fb_helper_debug_leave(struct fb_info *info)
 	return 0;
 }
 
-static inline struct drm_display_mode *
-drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector,
-		       int width, int height)
-{
-	return NULL;
-}
-
-static inline struct drm_display_mode *
-drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn,
-		      int width, int height)
-{
-	return NULL;
-}
-
 static inline int
 drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper,
 				struct drm_connector *connector)
-- 
2.15.1

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