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Signed-off-by: Abhinav Kumar Signed-off-by: Yongxing Mou --- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h | 2 ++ drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 23 ++++++++++++++++++++++- drivers/gpu/drm/msm/dp/dp_mst_drm.h | 2 -- drivers/gpu/drm/msm/msm_drv.h | 13 +++++++++++++ 4 files changed, 37 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h b/drivers/gpu/drm/= msm/disp/dpu1/dpu_encoder.h index ca1ca2e51d7ead0eb34b27f3168e6bb06a71a11a..2eb4c39b111c1d8622e09e78ffa= fef017e28bbf6 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h @@ -28,6 +28,7 @@ * @h_tile_instance: Controller instance used per tile. Number of eleme= nts is * based on num_of_h_tiles * @is_cmd_mode Boolean to indicate if the CMD mode is requested + * @stream_id stream id for which the interface needs to be acquired * @vsync_source: Source of the TE signal for DSI CMD devices */ struct msm_display_info { @@ -35,6 +36,7 @@ struct msm_display_info { uint32_t num_of_h_tiles; uint32_t h_tile_instance[MAX_H_TILES_PER_DISPLAY]; bool is_cmd_mode; + int stream_id; enum dpu_vsync_source vsync_source; }; =20 diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/= disp/dpu1/dpu_kms.c index 12dcb32b472497f9e59619db4e810abfbf610c7c..0b9d9207f4f69e0d0725ff265c6= 24828b5816a8b 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -653,7 +653,8 @@ static int _dpu_kms_initialize_displayport(struct drm_d= evice *dev, struct msm_display_info info; bool yuv_supported; int rc; - int i; + int i, stream_id; + int stream_cnt; =20 for (i =3D 0; i < ARRAY_SIZE(priv->kms->dp); i++) { if (!priv->kms->dp[i]) @@ -676,6 +677,26 @@ static int _dpu_kms_initialize_displayport(struct drm_= device *dev, DPU_ERROR("modeset_init failed for DP, rc =3D %d\n", rc); return rc; } + + stream_cnt =3D msm_dp_get_mst_max_stream(priv->kms->dp[i]); + + if (stream_cnt > 1) { + for (stream_id =3D 0; stream_id < stream_cnt; stream_id++) { + info.stream_id =3D stream_id; + encoder =3D dpu_encoder_init(dev, DRM_MODE_ENCODER_DPMST, &info); + if (IS_ERR(encoder)) { + DPU_ERROR("encoder init failed for dp mst display\n"); + return PTR_ERR(encoder); + } + + rc =3D msm_dp_mst_drm_bridge_init(priv->kms->dp[i], encoder); + if (rc) { + DPU_ERROR("dp mst bridge %d init failed, %d\n", + stream_id, rc); + continue; + } + } + } } =20 return 0; diff --git a/drivers/gpu/drm/msm/dp/dp_mst_drm.h b/drivers/gpu/drm/msm/dp/d= p_mst_drm.h index 8fe6cbbe741da4abb232256b3a15ba6b16ca4f3e..d73e3f908439094532e88945ed4= d41ed092051c9 100644 --- a/drivers/gpu/drm/msm/dp/dp_mst_drm.h +++ b/drivers/gpu/drm/msm/dp/dp_mst_drm.h @@ -82,8 +82,6 @@ struct msm_dp_mst_connector { struct msm_dp_panel *dp_panel; }; =20 -int msm_dp_mst_drm_bridge_init(struct msm_dp *dp, struct drm_encoder *enco= der); - int msm_dp_mst_init(struct msm_dp *dp_display, u32 max_streams, struct drm= _dp_aux *drm_aux); =20 void msm_dp_mst_display_hpd_irq(struct msm_dp *dp_display); diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 985db9febd98e35dfed51d39dac1a522abe5a351..3e64ec7b7dbe1d1107e85def9aa= 80277131f40bf 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -363,6 +363,9 @@ bool msm_dp_needs_periph_flush(const struct msm_dp *dp_= display, const struct drm_display_mode *mode); bool msm_dp_wide_bus_available(const struct msm_dp *dp_display); =20 +int msm_dp_get_mst_max_stream(struct msm_dp *dp_display); +int msm_dp_mst_drm_bridge_init(struct msm_dp *dp_display, struct drm_encod= er *encoder); + #else static inline int __init msm_dp_register(void) { @@ -379,6 +382,16 @@ static inline int msm_dp_modeset_init(struct msm_dp *d= p_display, return -EINVAL; } =20 +static inline int msm_dp_get_mst_max_stream(struct msm_dp *dp_display) +{ + return -EINVAL; +} + +static inline int msm_dp_mst_drm_bridge_init(struct msm_dp *dp_display, st= ruct drm_encoder *encoder) +{ + return -EINVAL; +} + static inline void msm_dp_snapshot(struct msm_disp_state *disp_state, stru= ct msm_dp *dp_display) { } --=20 2.34.1