Re: [v1] drm/msm/disp/dpu1: populate disp_info with connector type
From: Dmitry Baryshkov
Date: Fri Nov 11 2022 - 17:34:44 EST
On 11/11/2022 16:56, Kalyan Thota wrote:
Populate disp_info with connector type. Since DRM encoder type
for few encoders can be similar (like eDP and DP) this information
will be useful to differentiate interfaces.
Changes in v1:
- add connector type in the disp_info (Dmitry)
You can get connector type from
- add helper functions to know encoder type
- update commit text reflecting the change
Signed-off-by: Kalyan Thota <quic_kalyant@xxxxxxxxxxx>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 44 +++++++++++++++++++++++++++--
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h | 26 +++++++++++++++--
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 2 ++
drivers/gpu/drm/msm/dp/dp_display.c | 5 ++++
drivers/gpu/drm/msm/msm_drv.h | 7 ++++-
5 files changed, 77 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 9c6817b..c9058aa 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -217,6 +217,40 @@ static u32 dither_matrix[DITHER_MATRIX_SZ] = {
15, 7, 13, 5, 3, 11, 1, 9, 12, 4, 14, 6, 0, 8, 2, 10
};
+bool dpu_encoder_is_external(struct drm_encoder *drm_enc)
+{
+ struct dpu_encoder_virt *dpu_enc;
+
+ if (!drm_enc)
+ return false;
+
+ dpu_enc = to_dpu_encoder_virt(drm_enc);
+ return (dpu_enc->disp_info.connector_type ==
+ DRM_MODE_CONNECTOR_DisplayPort);
And also HDMI, DVI, VGA and several other connector types.
It is much easier to enumerate non-interesting (in other words,
non-external ones):
- Unknown
- LVDS
- eDP
- DSI
- DPI
- VIRTUAL
- WRITEBACK
+}
+
+bool dpu_encoder_is_virtual(struct drm_encoder *drm_enc)
+{
+ struct dpu_encoder_virt *dpu_enc;
+
+ if (!drm_enc)
+ return false;
+
+ dpu_enc = to_dpu_encoder_virt(drm_enc);
+ return (dpu_enc->disp_info.connector_type == DRM_MODE_CONNECTOR_WRITEBACK);
+}
+
+bool dpu_encoder_is_primary(struct drm_encoder *drm_enc)
+{
+ struct dpu_encoder_virt *dpu_enc;
+
+ if (!drm_enc)
+ return false;
+
+ dpu_enc = to_dpu_encoder_virt(drm_enc);
+ return((dpu_enc->disp_info.connector_type == DRM_MODE_CONNECTOR_DSI) ||
+ (dpu_enc->disp_info.connector_type == DRM_MODE_CONNECTOR_eDP));
Why do you need a separate is_primary?
+}
bool dpu_encoder_is_widebus_enabled(const struct drm_encoder *drm_enc)
{
@@ -2412,7 +2446,7 @@ int dpu_encoder_setup(struct drm_device *dev, struct drm_encoder *enc,
struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms);
struct drm_encoder *drm_enc = NULL;
struct dpu_encoder_virt *dpu_enc = NULL;
- int ret = 0;
+ int ret = 0, intf_i;
dpu_enc = to_dpu_encoder_virt(enc);
@@ -2424,13 +2458,17 @@ 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);
+ intf_i = disp_info->h_tile_instance[0];
if (disp_info->intf_type == DRM_MODE_ENCODER_DSI)
timer_setup(&dpu_enc->vsync_event_timer,
dpu_encoder_vsync_event_handler,
0);
- else if (disp_info->intf_type == DRM_MODE_ENCODER_TMDS)
+ else if (disp_info->intf_type == DRM_MODE_ENCODER_TMDS) {
dpu_enc->wide_bus_en = msm_dp_wide_bus_available(
- priv->dp[disp_info->h_tile_instance[0]]);
+ priv->dp[intf_i]);
+ disp_info->connector_type =
+ msm_dp_get_connector_type(priv->dp[intf_i]);
+ }
INIT_DELAYED_WORK(&dpu_enc->delayed_off_work,
dpu_encoder_off_work);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
index 9e7236e..d361c5d 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
@@ -25,16 +25,18 @@
* @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
* based on num_of_h_tiles
- * @is_cmd_mode Boolean to indicate if the CMD mode is requested
+ * @is_cmd_mode: Boolean to indicate if the CMD mode is requested
Unrelated change. If you want to fix a whitespace, please do so. In a
separate patch.
+ * @connector_type: DRM_MODE_CONNECTOR_ type
You can get this kind of information from the atomic state.
See the for_each_connector_on_encoder
* @is_te_using_watchdog_timer: Boolean to indicate watchdog TE is
- * used instead of panel TE in cmd mode panels
- * @dsc: DSC configuration data for DSC-enabled displays
+ * used instead of panel TE in cmd mode panels
+ * @dsc: DSC configuration data for DSC-enabled displays
*/
struct msm_display_info {
int intf_type;
uint32_t num_of_h_tiles;
uint32_t h_tile_instance[MAX_H_TILES_PER_DISPLAY];
bool is_cmd_mode;
+ int connector_type;
bool is_te_using_watchdog_timer;
struct drm_dsc_config *dsc;
};
@@ -224,4 +226,22 @@ void dpu_encoder_cleanup_wb_job(struct drm_encoder *drm_enc,
*/
bool dpu_encoder_is_valid_for_commit(struct drm_encoder *drm_enc);
+/**
+* dpu_encoder_is_external - find if the encoder is of type DP
+* @drm_enc: Pointer to previously created drm encoder structure
+*/
+bool dpu_encoder_is_external(struct drm_encoder *drm_enc);
+
+/**
+* dpu_encoder_is_virtual - find if the encoder is of type Writeback
+* @drm_enc: Pointer to previously created drm encoder structure
+*/
+bool dpu_encoder_is_virtual(struct drm_encoder *drm_enc);
+
+/**
+* dpu_encoder_is_primary - find if the encoder is of type DSI or eDP
+* @drm_enc: Pointer to previously created drm encoder structure
+*/
+bool dpu_encoder_is_primary(struct drm_encoder *drm_enc);
+
#endif /* __DPU_ENCODER_H__ */
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index 0d94eec0d..0709da2 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -574,6 +574,7 @@ static int _dpu_kms_initialize_dsi(struct drm_device *dev,
memset(&info, 0, sizeof(info));
info.intf_type = encoder->encoder_type;
+ info.connector_type = DRM_MODE_CONNECTOR_DSI;
No, this is pure lie.
rc = msm_dsi_modeset_init(priv->dsi[i], dev, encoder);
if (rc) {
@@ -676,6 +677,7 @@ static int _dpu_kms_initialize_writeback(struct drm_device *dev,
/* use only WB idx 2 instance for DPU */
info.h_tile_instance[0] = WB_2;
info.intf_type = encoder->encoder_type;
+ info.connector_type = DRM_MODE_CONNECTOR_WRITEBACK;
rc = dpu_encoder_setup(dev, encoder, &info);
if (rc) {
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index bfd0aef..53f65dd 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -1509,6 +1509,11 @@ bool msm_dp_wide_bus_available(const struct msm_dp *dp_display)
return dp->wide_bus_en;
}
+int msm_dp_get_connector_type(const struct msm_dp *dp_display)
+{
+ return dp_display->connector_type;
+}
+
void msm_dp_debugfs_init(struct msm_dp *dp_display, struct drm_minor *minor)
{
struct dp_display_private *dp;
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index ea80846..2ecba6f 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -331,7 +331,7 @@ void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_displa
void msm_dp_debugfs_init(struct msm_dp *dp_display, struct drm_minor *minor);
bool msm_dp_wide_bus_available(const struct msm_dp *dp_display);
-
+int msm_dp_get_connector_type(const struct msm_dp *dp_display);
#else
static inline int __init msm_dp_register(void)
{
@@ -365,6 +365,11 @@ static inline bool msm_dp_wide_bus_available(const struct msm_dp *dp_display)
return false;
}
+static inline int msm_dp_get_connector_type(const struct msm_dp *dp_display)
+{
+ return 0;
+}
+
#endif
#ifdef CONFIG_DRM_MSM_MDP4
--
With best wishes
Dmitry