On Tue 15 Feb 08:16 CST 2022, Dmitry Baryshkov wrote:
> Rather than passing DRM_MODE_ENCODER_* and letting dpu_encoder to guess,
> which intf type we mean, pass INTF_DSI/INTF_DP directly.
>
> Signed-off-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
> ---
> drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 26 +++++++--------------
> drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h | 4 ++--
> drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 5 ++--
> 3 files changed, 13 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> index fa1dc088a672..597d40f78d38 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> @@ -490,7 +490,7 @@ void dpu_encoder_helper_split_config(
> hw_mdptop = phys_enc->hw_mdptop;
> disp_info = &dpu_enc->disp_info;
>
> - if (disp_info->intf_type != DRM_MODE_ENCODER_DSI)
> + if (disp_info->intf_type != INTF_DSI)
> return;
>
> /**
> @@ -552,7 +552,7 @@ static struct msm_display_topology
> dpu_encoder_get_topology(
> else
> topology.num_lm = (mode->hdisplay > MAX_HDISPLAY_SPLIT) ? 2 : 1;
>
> - if (dpu_enc->disp_info.intf_type == DRM_MODE_ENCODER_DSI) {
> + if (dpu_enc->disp_info.intf_type == INTF_DSI) {
> if (dpu_kms->catalog->dspp &&
> (dpu_kms->catalog->dspp_count >= topology.num_lm))
> topology.num_dspp = topology.num_lm;
> @@ -1074,7 +1074,7 @@ static void _dpu_encoder_virt_enable_helper(struct
> drm_encoder *drm_enc)
> }
>
>
> - if (dpu_enc->disp_info.intf_type == DRM_MODE_ENCODER_TMDS &&
> + if (dpu_enc->disp_info.intf_type == INTF_DP &&
> dpu_enc->cur_master->hw_mdptop &&
> dpu_enc->cur_master->hw_mdptop->ops.intf_audio_select)
> dpu_enc->cur_master->hw_mdptop->ops.intf_audio_select(
> @@ -1082,7 +1082,7 @@ static void _dpu_encoder_virt_enable_helper(struct
> drm_encoder *drm_enc)
>
> _dpu_encoder_update_vsync_source(dpu_enc, &dpu_enc->disp_info);
>
> - if (dpu_enc->disp_info.intf_type == DRM_MODE_ENCODER_DSI &&
> + if (dpu_enc->disp_info.intf_type == INTF_DSI &&
> !WARN_ON(dpu_enc->num_phys_encs == 0)) {
> unsigned bpc = dpu_enc->connector->display_info.bpc;
> for (i = 0; i < MAX_CHANNELS_PER_ENC; i++) {
> @@ -1949,7 +1949,6 @@ static int dpu_encoder_setup_display(struct
> dpu_encoder_virt *dpu_enc,
> {
> int ret = 0;
> int i = 0;
> - enum dpu_intf_type intf_type = INTF_NONE;
> struct dpu_enc_phys_init_params phys_params;
>
> if (!dpu_enc) {
> @@ -1965,15 +1964,6 @@ static int dpu_encoder_setup_display(struct
> dpu_encoder_virt *dpu_enc,
> phys_params.parent_ops = &dpu_encoder_parent_ops;
> phys_params.enc_spinlock = &dpu_enc->enc_spinlock;
>
> - switch (disp_info->intf_type) {
> - case DRM_MODE_ENCODER_DSI:
> - intf_type = INTF_DSI;
> - break;
> - case DRM_MODE_ENCODER_TMDS:
> - intf_type = INTF_DP;
> - break;
> - }
> -
> WARN_ON(disp_info->num_of_h_tiles < 1);
>
> DPU_DEBUG("dsi_info->num_of_h_tiles %d\n", disp_info->num_of_h_tiles);
> @@ -2005,11 +1995,11 @@ static int dpu_encoder_setup_display(struct
> dpu_encoder_virt *dpu_enc,
> i, controller_id, phys_params.split_role);
>
> phys_params.intf_idx = dpu_encoder_get_intf(dpu_kms->catalog,
> -
> intf_type,
> -
> controller_id);
> + disp_info->intf_type,
> + controller_id);
> if (phys_params.intf_idx == INTF_MAX) {
> DPU_ERROR_ENC(dpu_enc, "could not get intf: type %d, id
> %d\n",
> - intf_type, controller_id);
> + disp_info->intf_type,
> controller_id);
> ret = -EINVAL;
> }
>
> @@ -2092,7 +2082,7 @@ int dpu_encoder_setup(struct drm_device *dev, struct
> drm_encoder *enc,
> timer_setup(&dpu_enc->frame_done_timer,
> dpu_encoder_frame_done_timeout, 0);
>
> - if (disp_info->intf_type == DRM_MODE_ENCODER_DSI)
> + if (disp_info->intf_type == INTF_DSI)
> timer_setup(&dpu_enc->vsync_event_timer,
> dpu_encoder_vsync_event_handler,
> 0);
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
> index ebe3944355bb..3891bcbbe5a4 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
> @@ -36,7 +36,7 @@ void dpu_encoder_get_hw_resources(struct drm_encoder
> *encoder,
>
> /**
> * struct msm_display_info - defines display properties
> - * @intf_type: DRM_MODE_ENCODER_ type
> + * @intf_type: INTF_ type
> * @capabilities: Bitmask of display flags
> * @num_of_h_tiles: Number of horizontal tiles in case of split interface
> * @h_tile_instance: Controller instance used per tile. Number of
> elements is
> @@ -45,7 +45,7 @@ void dpu_encoder_get_hw_resources(struct drm_encoder
> *encoder,
> * used instead of panel TE in cmd mode panels
> */
> struct msm_display_info {
> - int intf_type;
> + enum dpu_intf_type intf_type;
> uint32_t capabilities;
> uint32_t num_of_h_tiles;
> uint32_t h_tile_instance[MAX_H_TILES_PER_DISPLAY];
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> index 5f0dc44119c9..bca4f05a5782 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> @@ -564,7 +564,7 @@ static int _dpu_kms_initialize_dsi(struct drm_device *dev,
> priv->encoders[priv->num_encoders++] = encoder;
>
> memset(&info, 0, sizeof(info));
> - info.intf_type = encoder->encoder_type;
> + info.intf_type = INTF_DSI;
>
> rc = msm_dsi_modeset_init(priv->dsi[i], dev, encoder);
> if (rc) {
> @@ -630,7 +630,8 @@ static int _dpu_kms_initialize_displayport(struct
> drm_device *dev,
> info.num_of_h_tiles = 1;
> info.h_tile_instance[0] = i;
> info.capabilities = MSM_DISPLAY_CAP_VID_MODE;
> - info.intf_type = encoder->encoder_type;
> + /* FIXME: HW catalog treats both DP and eDP interfaces as
> INTF_DP */
Is this really a problem? Don't we need to handle the differences
between eDP and DP on a case-by-case basis anyways. E.g. not all DP
interfaces seems to have audio support etc.
Either way, thanks for clearing this up!
Reviewed-by: Bjorn Andersson <bjorn.anders...@linaro.org>
Regards,
Bjorn
> + info.intf_type = INTF_DP;
> rc = dpu_encoder_setup(dev, encoder, &info);
> if (rc) {
> DPU_ERROR("failed to setup DPU encoder %d: rc:%d\n",
> --
> 2.34.1
>
