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drm/msm/dpu: Enable widebus for DSI INTF

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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_jesszhan@quicinc.com>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/553756/
Link: https://lore.kernel.org/r/20230822-add-widebus-support-v4-2-9dc86083d6ea@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
This commit is contained in:
Jessica Zhang 2023-08-22 10:42:05 -07:00 committed by Dmitry Baryshkov
parent 14be80ae94
commit 97f038db21
6 changed files with 25 additions and 2 deletions
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7
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
View File

@ -1196,15 +1196,18 @@ 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;
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]]);
dpu_enc->wide_bus_en = msm_dp_wide_bus_available(priv->dp[index]);
else if (disp_info->intf_type == INTF_DSI)
dpu_enc->wide_bus_en = msm_dsi_wide_bus_enabled(priv->dsi[index]);
mutex_lock(&dpu_enc->enc_lock);
cur_mode = &dpu_enc->base.crtc->state->adjusted_mode;

2
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
View File

@ -72,6 +72,8 @@ static void _dpu_encoder_phys_cmd_update_intf_cfg(
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);
}

7
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
View File

@ -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);
}
@ -545,6 +548,10 @@ static void _setup_intf_ops(struct dpu_hw_intf_ops *ops,
ops->disable_autorefresh = dpu_hw_intf_disable_autorefresh;
}
/* Technically, INTF_CONFIG2 is present for DPU 5.0+, but
* we can configure it for DPU 7.0+ since the wide bus and DSC flags
* would not be set for DPU < 7.0 anyways
*/
if (mdss_rev->core_major_ver >= 7)
ops->program_intf_cmd_cfg = dpu_hw_intf_program_intf_cmd_cfg;
}

1
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.h
View File

@ -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 */
};
/**

5
drivers/gpu/drm/msm/dsi/dsi.c
View File

@ -17,6 +17,11 @@ struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi)
return msm_dsi_host_get_dsc_config(msm_dsi->host);
}
bool msm_dsi_wide_bus_enabled(struct msm_dsi *msm_dsi)
{
return false;
}
static int dsi_get_phy(struct msm_dsi *msm_dsi)
{
struct platform_device *pdev = msm_dsi->pdev;

5
drivers/gpu/drm/msm/msm_drv.h
View File

@ -343,6 +343,7 @@ 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_wide_bus_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)
@ -372,6 +373,10 @@ static inline bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi)
{
return false;
}
static inline bool msm_dsi_wide_bus_enabled(struct msm_dsi *msm_dsi)
{
return false;
}
static inline struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi)
{