Merge tag 'topic/drm-misc-2016-04-21' of git://anongit.freedesktop.org/drm-intel into drm-next

misc pull req all over. Biggest thing is the
drm_connector_(un)register_all cleanup from Alexey for drivers without the
load/unload midlayer hooks. I.e. all the new ones, and a bunch of the
pending new atomic drivers depend upon this. Or at least I asked them to
rebase ;-)

* tag 'topic/drm-misc-2016-04-21' of git://anongit.freedesktop.org/drm-intel:
  drm: Make drm.debug parameter description more helpful
  drm: Remove warning from drm_connector_unregister_all()
  drm: probe_helper: Hide ugly ifdef
  drm: rcar-du: Use generic drm_connector_register_all() helper
  drm: atmel_hldc: Use generic drm_connector_register_all() helper
  drm: Introduce drm_connector_register_all() helper
  drm: fix lut value extraction function
  drm/atomic-helper: Print an error if vblank wait times out
  drm/dp/mst: Restore primary hub guid on resume
  drm: Release driver references to handle before making it available again
  drm/i915/dp/mst: Add source port info to debugfs output
  drm/dp/mst: Enhance DP MST debugfs output
  drm/edid: Add drm_edid_get_monitor_name()
  include/drm: Reword debug categories comment.
  drm/crtc_helper: Reset empty plane state in drm_helper_crtc_mode_set_base()
  drm/virtio: Drop dummy gamma table support
  drm/bochs: Drop fake gamma support
  drm/core: Fix ordering in drm_mode_config_cleanup.

3 files changed, 19 insertions, 4 deletions

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 3c8422c69572..5de4cff05ac9 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -90,7 +90,7 @@ struct reservation_object;
 struct dma_buf_attachment;
 
 /*
- * 4 debug categories are defined:
+ * The following categories are defined:
  *
  * CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ...
  *	 This is the category used by the DRM_DEBUG() macro.
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 8cb377c5eb93..6f43f9487aee 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -2249,7 +2249,8 @@ static inline unsigned drm_connector_index(struct drm_connector *connector)
 	return connector->connector_id;
 }
 
-/* helper to unregister all connectors from sysfs for device */
+/* helpers to {un}register all connectors from sysfs for device */
+extern int drm_connector_register_all(struct drm_device *dev);
 extern void drm_connector_unregister_all(struct drm_device *dev);
 
 extern int drm_bridge_add(struct drm_bridge *bridge);
@@ -2500,6 +2501,8 @@ extern int drm_edid_header_is_valid(const u8 *raw_edid);
 extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid,
 				 bool *edid_corrupt);
 extern bool drm_edid_is_valid(struct edid *edid);
+extern void drm_edid_get_monitor_name(struct edid *edid, char *name,
+				      int buflen);
 
 extern struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
 							 char topology[8]);
@@ -2590,10 +2593,14 @@ static inline struct drm_property *drm_property_find(struct drm_device *dev,
 static inline uint32_t drm_color_lut_extract(uint32_t user_input,
 					     uint32_t bit_precision)
 {
-	uint32_t val = user_input + (1 << (16 - bit_precision - 1));
+	uint32_t val = user_input;
 	uint32_t max = 0xffff >> (16 - bit_precision);
 
-	val >>= 16 - bit_precision;
+	/* Round only if we're not using full precision. */
+	if (bit_precision < 16) {
+		val += 1UL << (16 - bit_precision - 1);
+		val >>= 16 - bit_precision;
+	}
 
 	return clamp_val(val, 0, max);
 }
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index dec6221e8198..919933d1beb4 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -328,7 +328,15 @@ int drm_edid_to_speaker_allocation(struct edid *edid, u8 **sadb);
 int drm_av_sync_delay(struct drm_connector *connector,
 		      const struct drm_display_mode *mode);
 struct drm_connector *drm_select_eld(struct drm_encoder *encoder);
+
+#ifdef CONFIG_DRM_LOAD_EDID_FIRMWARE
 int drm_load_edid_firmware(struct drm_connector *connector);
+#else
+static inline int drm_load_edid_firmware(struct drm_connector *connector)
+{
+	return 0;
+}
+#endif
 
 int
 drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,