drm/msm/sde: support partial update for dsc merge panel
Add support partial screen update for DSC merge panels. This
topology uses two pingpong and DSC encoders to drive a single
panel. It requires supporting left/right layer mixer swap in the
case where there is a right-only update.
Change-Id: Ie9c2d4990acbb6a4a65fddec2d8a42066bd3334e
Signed-off-by: Lloyd Atkinson <latkinso@codeaurora.org>
diff --git a/drivers/gpu/drm/msm/sde/sde_encoder.h b/drivers/gpu/drm/msm/sde/sde_encoder.h
index 7292a12..6ef245b 100644
--- a/drivers/gpu/drm/msm/sde/sde_encoder.h
+++ b/drivers/gpu/drm/msm/sde/sde_encoder.h
@@ -149,6 +149,20 @@
void sde_encoder_virt_restore(struct drm_encoder *encoder);
/**
+ * sde_encoder_is_dsc_enabled - check if encoder is in DSC mode
+ * @drm_enc: Pointer to drm encoder object
+ * @Return: true if encoder is in DSC mode
+ */
+bool sde_encoder_is_dsc_enabled(struct drm_encoder *drm_enc);
+
+/**
+ * sde_encoder_is_dsc_merge - check if encoder is in DSC merge mode
+ * @drm_enc: Pointer to drm encoder object
+ * @Return: true if encoder is in DSC merge mode
+ */
+bool sde_encoder_is_dsc_merge(struct drm_encoder *drm_enc);
+
+/**
* sde_encoder_init - initialize virtual encoder object
* @dev: Pointer to drm device structure
* @disp_info: Pointer to display information structure