Since DRM encoder type for few encoders can be similar
(like eDP and DP), get the connector type for a given
encoder to differentiate between builtin and pluggable
displays.
Changes in v1:
- add connector type in the disp_info (Dmitry)
- add helper functions to know encoder type
- update commit text reflecting the change
Changes in v2:
- avoid hardcode of connector type for DSI as it may not be true (Dmitry)
- get the HPD information from encoder bridge
Changes in v3:
- use connector type instead of bridge ops in determining
connector (Dmitry)
Changes in v4:
- get type from the drm connector rather from bridge connector (Dmitry)
Signed-off-by: Kalyan Thota <quic_kalyant@xxxxxxxxxxx>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 26 ++++++++++++++++++++++++++
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h | 6 ++++++
2 files changed, 32 insertions(+)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 9c6817b..96db7fb 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -217,6 +217,32 @@ 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_builtin(struct drm_encoder *encoder)
+{
+ struct drm_connector *connector;
+ struct drm_connector_list_iter conn_iter;
+ struct drm_device *dev = encoder->dev;
+ int type = 0;
+
+ drm_connector_list_iter_begin(dev, &conn_iter);
+ drm_for_each_connector_iter(connector, &conn_iter) {
+ if (drm_connector_has_possible_encoder(connector, encoder)) {
+ type = connector->connector_type;
+ break;
+ }
+ }
+ drm_connector_list_iter_end(&conn_iter);
+
+ switch (type) {
+ case DRM_MODE_CONNECTOR_LVDS:
+ case DRM_MODE_CONNECTOR_eDP:
+ case DRM_MODE_CONNECTOR_DSI:
+ case DRM_MODE_CONNECTOR_DPI:
+ return true;
+ default:
+ return false;
+ }
+}
bool dpu_encoder_is_widebus_enabled(const struct drm_encoder *drm_enc)
{
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
index 9e7236e..7f3d823 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
@@ -224,4 +224,10 @@ 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_builtin - find if the encoder is of type builtin
+ * @drm_enc: Pointer to previously created drm encoder structure
+ */
+bool dpu_encoder_is_builtin(struct drm_encoder *drm_enc);
+
#endif /* __DPU_ENCODER_H__ */
--
2.7.4
