DPU supports a data-bus widen mode for DSI INTF.

Enable this mode for all supported chipsets if widebus is enabled for DSI.

Signed-off-by: Jessica Zhang <quic_jessz...@quicinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c          | 11 ++++++++---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c |  4 +++-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c          |  3 +++
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.h          |  1 +
 drivers/gpu/drm/msm/msm_drv.h                        |  6 +++++-
 5 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 3dcd37c48aac..de08aad39e15 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -1196,15 +1196,20 @@ static void dpu_encoder_virt_atomic_enable(struct 
drm_encoder *drm_enc,
        struct drm_display_mode *cur_mode = NULL;
        struct msm_drm_private *priv = drm_enc->dev->dev_private;
        struct msm_display_info *disp_info;
+       int index;
 
        dpu_enc = to_dpu_encoder_virt(drm_enc);
        disp_info = &dpu_enc->disp_info;
 
+       disp_info = &dpu_enc->disp_info;
+       index = disp_info->h_tile_instance[0];
+
        dpu_enc->dsc = dpu_encoder_get_dsc_config(drm_enc);
 
-       if (disp_info->intf_type == INTF_DP)
-               dpu_enc->wide_bus_en = msm_dp_wide_bus_available(
-                               priv->dp[disp_info->h_tile_instance[0]]);
+       if (disp_info->intf_type == INTF_DSI)
+               dpu_enc->wide_bus_en = 
msm_dsi_is_widebus_enabled(priv->dsi[index]);
+       else if (disp_info->intf_type == INTF_DP)
+               dpu_enc->wide_bus_en = 
msm_dp_wide_bus_available(priv->dp[index]);
 
        mutex_lock(&dpu_enc->enc_lock);
        cur_mode = &dpu_enc->base.crtc->state->adjusted_mode;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
index df88358e7037..dace6168be2d 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
@@ -69,8 +69,10 @@ static void _dpu_encoder_phys_cmd_update_intf_cfg(
                                phys_enc->hw_intf,
                                phys_enc->hw_pp->idx);
 
-       if (intf_cfg.dsc != 0)
+       if (intf_cfg.dsc != 0) {
                cmd_mode_cfg.data_compress = true;
+               cmd_mode_cfg.wide_bus_en = 
dpu_encoder_is_widebus_enabled(phys_enc->parent);
+       }
 
        if (phys_enc->hw_intf->ops.program_intf_cmd_cfg)
                phys_enc->hw_intf->ops.program_intf_cmd_cfg(phys_enc->hw_intf, 
&cmd_mode_cfg);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
index 8ec6505d9e78..dc6f3febb574 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
@@ -521,6 +521,9 @@ static void dpu_hw_intf_program_intf_cmd_cfg(struct 
dpu_hw_intf *ctx,
        if (cmd_mode_cfg->data_compress)
                intf_cfg2 |= INTF_CFG2_DCE_DATA_COMPRESS;
 
+       if (cmd_mode_cfg->wide_bus_en)
+               intf_cfg2 |= INTF_CFG2_DATABUS_WIDEN;
+
        DPU_REG_WRITE(&ctx->hw, INTF_CONFIG2, intf_cfg2);
 }
 
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.h 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.h
index 77f80531782b..c539025c418b 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.h
@@ -50,6 +50,7 @@ struct dpu_hw_intf_status {
 
 struct dpu_hw_intf_cmd_mode_cfg {
        u8 data_compress;       /* enable data compress between dpu and dsi */
+       u8 wide_bus_en;         /* enable databus widen mode */
 };
 
 /**
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index 9d9d5e009163..e4f706b16aad 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -344,6 +344,7 @@ void msm_dsi_snapshot(struct msm_disp_state *disp_state, 
struct msm_dsi *msm_dsi
 bool msm_dsi_is_cmd_mode(struct msm_dsi *msm_dsi);
 bool msm_dsi_is_bonded_dsi(struct msm_dsi *msm_dsi);
 bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi);
+bool msm_dsi_is_widebus_enabled(struct msm_dsi *msm_dsi);
 struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi);
 #else
 static inline void __init msm_dsi_register(void)
@@ -373,7 +374,10 @@ static inline bool msm_dsi_is_master_dsi(struct msm_dsi 
*msm_dsi)
 {
        return false;
 }
-
+static inline bool msm_dsi_is_widebus_enabled(struct msm_dsi *msm_dsi)
+{
+       return false;
+}
 static inline struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi 
*msm_dsi)
 {
        return NULL;

-- 
2.41.0

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