drm/msm/dsi-staging: add support for configuring display topology
Display topology is influenced by the target capabilities
and the panel features. This change allows the sde display
device tree to list down the possible topologies valid on
the target and default topology selected for the display.
The change also provides options to override the default
topology through kernel boot parameters.
Change-Id: Ie7b3c6ba5d79965c3247a629e992df9baded6ecd
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index 4471d0b..2aa966b 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -353,6 +353,26 @@
};
/**
+ * struct msm_display_topology - defines a display topology pipeline
+ * @num_lm: number of layer mixers used
+ * @num_enc: number of compression encoder blocks used
+ * @num_intf: number of interfaces the panel is mounted on
+ */
+struct msm_display_topology {
+ u32 num_lm;
+ u32 num_enc;
+ u32 num_intf;
+};
+
+/**
+ * struct msm_mode_info - defines all msm custom mode info
+ * @topology - supported topology for the mode
+ */
+struct msm_mode_info {
+ struct msm_display_topology topology;
+};
+
+/**
* struct msm_display_info - defines display properties
* @intf_type: DRM_MODE_CONNECTOR_ display type
* @capabilities: Bitmask of display flags