Merge tag 'drm-misc-next-2022-06-08' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.20:

UAPI Changes:

 * connector: export bpc limits in debugfs

 * dma-buf: Print buffer name in debugfs

Cross-subsystem Changes:

 * dma-buf: Improve dma-fence handling; Cleanups

 * fbdev: Device-unregistering fixes

Core Changes:

 * client: Only use driver-validated modes to avoid blank screen

 * dp-aux: Make probing more reliable; Small fixes

 * edit: CEA data-block iterators; Introduce struct drm_edid; Many cleanups

 * gem: Don't use framebuffer format's non-exising color planes

 * probe-helper: Use 640x480 as DisplayPort fallback; Refactoring

 * scheduler: Don't kill jobs in interrupt context

Driver Changes:

 * amdgpu: Use atomic fence helpers in DM; Fix VRAM address calculation;
   Export CRTC bpc settings via debugfs

 * bridge: Add TI-DLPC3433;  anx7625: Fixes;  fy07024di26a30d: Optional
   GPIO reset;  icn6211: Cleanups;  ldb: Add reg and reg-name properties
   to bindings, Kconfig fixes;  lt9611: Fix display sensing;  lt9611uxc:
   Fixes;  nwl-dsi: Fixes;  ps8640: Cleanups;  st7735r: Fixes;  tc358767:
   DSI/DPI refactoring and DSI-to-eDP support, Fixes; ti-sn65dsi83:
   Fixes;

 * gma500: Cleanup connector I2C handling

 * hyperv: Unify VRAM allocation of Gen1 and Gen2

 * i915: export CRTC bpc settings via debugfs

 * meson: Support YUV422 output; Refcount fixes

 * mgag200: Support damage clipping; Support gamma handling; Protect
   concurrent HW access; Fixes to connector; Store model-specific limits
   in device-info structure; Cleanups

 * nouveau: Fixes and Cleanups

 * panel: Kconfig fixes

 * panfrost: Valhall support

 * r128: Fix bit-shift overflow

 * rockchip: Locking fixes in error path; Minor cleanups

 * ssd130x: Fix built-in linkage

 * ttm: Cleanups

 * udl; Always advertize VGA connector

 * fbdev/vesa: Support COMPILE_TEST

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YqBtumw05JZDEZE2@linux-uq9g

1 files changed, 13 insertions, 25 deletions

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
index c7a592d68feb..2a78ae007521 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -871,28 +871,18 @@ static int psr_capability_show(struct seq_file *m, void *data)
 }
 
 /*
- * Returns the current and maximum output bpc for the connector.
- * Example usage: cat /sys/kernel/debug/dri/0/DP-1/output_bpc
+ * Returns the current bpc for the crtc.
+ * Example usage: cat /sys/kernel/debug/dri/0/crtc-0/amdgpu_current_bpc
  */
-static int output_bpc_show(struct seq_file *m, void *data)
+static int amdgpu_current_bpc_show(struct seq_file *m, void *data)
 {
-	struct drm_connector *connector = m->private;
-	struct drm_device *dev = connector->dev;
-	struct drm_crtc *crtc = NULL;
+	struct drm_crtc *crtc = m->private;
+	struct drm_device *dev = crtc->dev;
 	struct dm_crtc_state *dm_crtc_state = NULL;
 	int res = -ENODEV;
 	unsigned int bpc;
 
 	mutex_lock(&dev->mode_config.mutex);
-	drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
-
-	if (connector->state == NULL)
-		goto unlock;
-
-	crtc = connector->state->crtc;
-	if (crtc == NULL)
-		goto unlock;
-
 	drm_modeset_lock(&crtc->mutex, NULL);
 	if (crtc->state == NULL)
 		goto unlock;
@@ -922,18 +912,15 @@ static int output_bpc_show(struct seq_file *m, void *data)
 	}
 
 	seq_printf(m, "Current: %u\n", bpc);
-	seq_printf(m, "Maximum: %u\n", connector->display_info.bpc);
 	res = 0;
 
 unlock:
-	if (crtc)
-		drm_modeset_unlock(&crtc->mutex);
-
-	drm_modeset_unlock(&dev->mode_config.connection_mutex);
+	drm_modeset_unlock(&crtc->mutex);
 	mutex_unlock(&dev->mode_config.mutex);
 
 	return res;
 }
+DEFINE_SHOW_ATTRIBUTE(amdgpu_current_bpc);
 
 /*
  * Example usage:
@@ -2539,7 +2526,6 @@ static int target_backlight_show(struct seq_file *m, void *unused)
 DEFINE_SHOW_ATTRIBUTE(dp_dsc_fec_support);
 DEFINE_SHOW_ATTRIBUTE(dmub_fw_state);
 DEFINE_SHOW_ATTRIBUTE(dmub_tracebuffer);
-DEFINE_SHOW_ATTRIBUTE(output_bpc);
 DEFINE_SHOW_ATTRIBUTE(dp_lttpr_status);
 #ifdef CONFIG_DRM_AMD_DC_HDCP
 DEFINE_SHOW_ATTRIBUTE(hdcp_sink_capability);
@@ -2786,7 +2772,6 @@ static const struct {
 	const struct file_operations *fops;
 } connector_debugfs_entries[] = {
 		{"force_yuv420_output", &force_yuv420_output_fops},
-		{"output_bpc", &output_bpc_fops},
 		{"trigger_hotplug", &trigger_hotplug_debugfs_fops},
 		{"internal_display", &internal_display_fops}
 };
@@ -3170,9 +3155,10 @@ static int crc_win_update_get(void *data, u64 *val)
 
 DEFINE_DEBUGFS_ATTRIBUTE(crc_win_update_fops, crc_win_update_get,
 			 crc_win_update_set, "%llu\n");
-
+#endif
 void crtc_debugfs_init(struct drm_crtc *crtc)
 {
+#ifdef CONFIG_DRM_AMD_SECURE_DISPLAY
 	struct dentry *dir = debugfs_lookup("crc", crtc->debugfs_entry);
 
 	if (!dir)
@@ -3188,9 +3174,11 @@ void crtc_debugfs_init(struct drm_crtc *crtc)
 				   &crc_win_y_end_fops);
 	debugfs_create_file_unsafe("crc_win_update", 0644, dir, crtc,
 				   &crc_win_update_fops);
-
-}
 #endif
+	debugfs_create_file("amdgpu_current_bpc", 0644, crtc->debugfs_entry,
+			    crtc, &amdgpu_current_bpc_fops);
+}
+
 /*
  * Writes DTN log state to the user supplied buffer.
  * Example usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_dtn_log