Merge tag 'drm-misc-next-2020-04-14' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.8:

UAPI Changes:

  - drm: error out with EBUSY when device has existing master
  - drm: rework SET_MASTER and DROP_MASTER perm handling

Cross-subsystem Changes:

  - mm: export two symbols from slub/slob
  - fbdev: savage: fix -Wextra build warning
  - video: omap2: Use scnprintf() for avoiding potential buffer overflow

Core Changes:

  - Remove drm_pci.h
  - drm_pci_{alloc/free)() are now legacy
  - Introduce managed DRM resourcesA
  - Allow drivers to subclass struct drm_framebuffer
  - Introduce struct drm_afbc_framebuffer and helpers
  - fbdev: remove return value from generic fbdev setup
  - Introduce simple-encoder helper
  - vram-helpers: set fence on plane
  - dp_mst: ACT timeout improvements
  - dp_mst: Remove drm_dp_mst_has_audio()
  - TTM: ttm_trace_dma_{map/unmap}() cleanups
  - dma-buf: add flag for PCIP2P support
  - EDID: Various improvements
  - Encoder: cleanup semantics of possible_clones and possible_crtcs
  - VBLANK documentation updates
  - Writeback documentation updates

Driver Changes:

  - Convert several drivers to i2c_new_client_device()
  - Drop explicit drm_mode_config_cleanup() calls from drivers
  - Auto-release device structures with drmm_add_final_kfree()
  - Init bfdev console after registering DRM device
  - Make various .debugfs functions return 0 unconditionally; ignore errors
  - video: Use scnprintf() to avoid buffer overflows
  - Convert drivers to simple encoders

  - drm/amdgpu: note that we can handle peer2peer DMA-buf
  - drm/amdgpu: add support for exporting VRAM using DMA-buf v3
  - drm/kirin: Revert change to register connectors
  - drm/lima: Add optional devfreq and cooling device support
  - drm/lima: Various improvements wrt. task handling
  - drm/panel: nt39016: Support multiple modes and 50Hz
  - drm/panel: Support Leadtek LTK050H3146W
  - drm/rockchip: Add support for afbc
  - drm/virtio: Various cleanups
  - drm/hisilicon/hibmc: Enforce 128-byte stride alignment
  - drm/qxl: Fix notify port address of cursor ring buffer
  - drm/sun4i: Improvements to format handling
  - drm/bridge: dw-hdmi: Various improvements

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

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20200414090738.GA16827@linux-uq9g

1 files changed, 34 insertions, 38 deletions

diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 3cde42b333c3..2d7c26592c05 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -157,9 +157,38 @@ struct drm_dp_mst_port {
 	 */
 	bool has_audio;
 
+	/**
+	 * @fec_capable: bool indicating if FEC can be supported up to that
+	 * point in the MST topology.
+	 */
 	bool fec_capable;
 };
 
+/* sideband msg header - not bit struct */
+struct drm_dp_sideband_msg_hdr {
+	u8 lct;
+	u8 lcr;
+	u8 rad[8];
+	bool broadcast;
+	bool path_msg;
+	u8 msg_len;
+	bool somt;
+	bool eomt;
+	bool seqno;
+};
+
+struct drm_dp_sideband_msg_rx {
+	u8 chunk[48];
+	u8 msg[256];
+	u8 curchunk_len;
+	u8 curchunk_idx; /* chunk we are parsing now */
+	u8 curchunk_hdrlen;
+	u8 curlen; /* total length of the msg */
+	bool have_somt;
+	bool have_eomt;
+	struct drm_dp_sideband_msg_hdr initial_hdr;
+};
+
 /**
  * struct drm_dp_mst_branch - MST branch device.
  * @rad: Relative Address to talk to this branch device.
@@ -232,24 +261,16 @@ struct drm_dp_mst_branch {
 	int last_seqno;
 	bool link_address_sent;
 
+	/**
+	 * @down_rep_recv: Message receiver state for down replies.
+	 */
+	struct drm_dp_sideband_msg_rx down_rep_recv[2];
+
 	/* global unique identifier to identify branch devices */
 	u8 guid[16];
 };
 
 
-/* sideband msg header - not bit struct */
-struct drm_dp_sideband_msg_hdr {
-	u8 lct;
-	u8 lcr;
-	u8 rad[8];
-	bool broadcast;
-	bool path_msg;
-	u8 msg_len;
-	bool somt;
-	bool eomt;
-	bool seqno;
-};
-
 struct drm_dp_nak_reply {
 	u8 guid[16];
 	u8 reason;
@@ -306,18 +327,6 @@ struct drm_dp_remote_i2c_write_ack_reply {
 };
 
 
-struct drm_dp_sideband_msg_rx {
-	u8 chunk[48];
-	u8 msg[256];
-	u8 curchunk_len;
-	u8 curchunk_idx; /* chunk we are parsing now */
-	u8 curchunk_hdrlen;
-	u8 curlen; /* total length of the msg */
-	bool have_somt;
-	bool have_eomt;
-	struct drm_dp_sideband_msg_hdr initial_hdr;
-};
-
 #define DRM_DP_MAX_SDP_STREAMS 16
 struct drm_dp_allocate_payload {
 	u8 port_number;
@@ -479,8 +488,6 @@ struct drm_dp_mst_topology_mgr;
 struct drm_dp_mst_topology_cbs {
 	/* create a connector for a port */
 	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
-	void (*destroy_connector)(struct drm_dp_mst_topology_mgr *mgr,
-				  struct drm_connector *connector);
 };
 
 #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
@@ -556,10 +563,6 @@ struct drm_dp_mst_topology_mgr {
 	int conn_base_id;
 
 	/**
-	 * @down_rep_recv: Message receiver state for down replies.
-	 */
-	struct drm_dp_sideband_msg_rx down_rep_recv;
-	/**
 	 * @up_req_recv: Message receiver state for up requests.
 	 */
 	struct drm_dp_sideband_msg_rx up_req_recv;
@@ -590,11 +593,6 @@ struct drm_dp_mst_topology_mgr {
 	bool payload_id_table_cleared : 1;
 
 	/**
-	 * @is_waiting_for_dwn_reply: whether we're waiting for a down reply.
-	 */
-	bool is_waiting_for_dwn_reply : 1;
-
-	/**
 	 * @mst_primary: Pointer to the primary/first branch device.
 	 */
 	struct drm_dp_mst_branch *mst_primary;
@@ -734,8 +732,6 @@ drm_dp_mst_detect_port(struct drm_connector *connector,
 		       struct drm_dp_mst_topology_mgr *mgr,
 		       struct drm_dp_mst_port *port);
 
-bool drm_dp_mst_port_has_audio(struct drm_dp_mst_topology_mgr *mgr,
-					struct drm_dp_mst_port *port);
 struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);