drm/msm/sde: add inline rotation prefill for video mode
In video mode, rotation stream buffer needs to be filled
before source pipe starts processing in order to fulfill
latency requirement. Inline rotation calculates prefill
start trigger and configures video interface engine
accordingly.
CRs-Fixed: 2009714
Change-Id: I9bfa4d49e24db1db101de4065e221d641e90f3f4
Signed-off-by: Alan Kwong <akwong@codeaurora.org>
diff --git a/drivers/gpu/drm/msm/sde/sde_encoder.h b/drivers/gpu/drm/msm/sde/sde_encoder.h
index bd7ef69..cdecd08 100644
--- a/drivers/gpu/drm/msm/sde/sde_encoder.h
+++ b/drivers/gpu/drm/msm/sde/sde_encoder.h
@@ -45,6 +45,14 @@
};
/**
+ * sde_encoder_kickoff_params - info encoder requires at kickoff
+ * @inline_rotate_prefill: number of lines to prefill for inline rotation
+ */
+struct sde_encoder_kickoff_params {
+ u32 inline_rotate_prefill;
+};
+
+/**
* sde_encoder_get_hw_resources - Populate table of required hardware resources
* @encoder: encoder pointer
* @hw_res: resource table to populate with encoder required resources
@@ -89,8 +97,10 @@
* Immediately: if no previous commit is outstanding.
* Delayed: Block until next trigger can be issued.
* @encoder: encoder pointer
+ * @params: kickoff time parameters
*/
-void sde_encoder_prepare_for_kickoff(struct drm_encoder *encoder);
+void sde_encoder_prepare_for_kickoff(struct drm_encoder *encoder,
+ struct sde_encoder_kickoff_params *params);
/**
* sde_encoder_kickoff - trigger a double buffer flip of the ctl path
@@ -116,6 +126,24 @@
enum sde_intf_mode sde_encoder_get_intf_mode(struct drm_encoder *encoder);
/**
+ * enum sde_encoder_property - property tags for sde enoder
+ * @SDE_ENCODER_PROPERTY_INLINE_ROTATE_REFILL: # of prefill line, 0 to disable
+ */
+enum sde_encoder_property {
+ SDE_ENCODER_PROPERTY_INLINE_ROTATE_PREFILL,
+ SDE_ENCODER_PROPERTY_MAX,
+};
+
+/*
+ * sde_encoder_set_property - set the property tag to the given value
+ * @encoder: Pointer to drm encoder object
+ * @tag: property tag
+ * @val: property value
+ * return: 0 if success; errror code otherwise
+ */
+int sde_encoder_set_property(struct drm_encoder *encoder, u32 tag, u64 val);
+
+/**
* sde_encoder_init - initialize virtual encoder object
* @dev: Pointer to drm device structure
* @disp_info: Pointer to display information structure