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drm/amdgpu/display: create fake mst encoders ahead of time (v4)

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Prevents a warning in the MST create connector case.

v2: create global fake encoders rather per connector fake encoders
to avoid running out of encoder indices.

v3: use the actual number of crtcs on the asic rather than the max
to conserve encoders.

v4: v3 plus missing hunk I forgot to git add.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1108
Fixes: c6385e503a ("drm/amdgpu: drop legacy drm load and unload callbacks")
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2020-07-10 17:50:00 -04:00
parent 4afaa61db9
commit f74367e492
4 changed files with 48 additions and 28 deletions
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11
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
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@@ -43,6 +43,9 @@
*/
#define AMDGPU_DM_MAX_DISPLAY_INDEX 31
#define AMDGPU_DM_MAX_CRTC 6
/*
#include "include/amdgpu_dal_power_if.h"
#include "amdgpu_dm_irq.h"
@@ -330,6 +333,13 @@ struct amdgpu_display_manager {
* available in FW
*/
const struct gpu_info_soc_bounding_box_v1_0 *soc_bounding_box;
/**
* @mst_encoders:
*
* fake encoders used for DP MST.
*/
struct amdgpu_encoder mst_encoders[AMDGPU_DM_MAX_CRTC];
};
struct amdgpu_dm_connector {
@@ -358,7 +368,6 @@ struct amdgpu_dm_connector {
struct amdgpu_dm_dp_aux dm_dp_aux;
struct drm_dp_mst_port *port;
struct amdgpu_dm_connector *mst_port;
struct amdgpu_encoder *mst_encoder;
struct drm_dp_aux *dsc_aux;
/* TODO see if we can merge with ddc_bus or make a dm_connector */