drm/tegra: hub: Use private object for global state

Rather than subclass the global atomic state to store the hub display
clock and rate, create a private object and store this data in its
state.

Signed-off-by: Thierry Reding <treding@nvidia.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/drivers/gpu/drm/tegra/hub.h b/drivers/gpu/drm/tegra/hub.h
index 890a47cd05c3..85b8bf41a395 100644
--- a/drivers/gpu/drm/tegra/hub.h
+++ b/drivers/gpu/drm/tegra/hub.h
@@ -41,6 +41,7 @@ struct tegra_display_hub_soc {
 };
 
 struct tegra_display_hub {
+	struct drm_private_obj base;
 	struct host1x_client client;
 	struct clk *clk_disp;
 	struct clk *clk_dsc;
@@ -57,6 +58,20 @@ to_tegra_display_hub(struct host1x_client *client)
 	return container_of(client, struct tegra_display_hub, client);
 }
 
+struct tegra_display_hub_state {
+	struct drm_private_state base;
+
+	struct tegra_dc *dc;
+	unsigned long rate;
+	struct clk *clk;
+};
+
+static inline struct tegra_display_hub_state *
+to_tegra_display_hub_state(struct drm_private_state *priv)
+{
+	return container_of(priv, struct tegra_display_hub_state, base);
+}
+
 struct tegra_dc;
 struct tegra_plane;
 
@@ -68,6 +83,8 @@ struct drm_plane *tegra_shared_plane_create(struct drm_device *drm,
 					    unsigned int wgrp,
 					    unsigned int index);
 
+int tegra_display_hub_atomic_check(struct drm_device *drm,
+				   struct drm_atomic_state *state);
 void tegra_display_hub_atomic_commit(struct drm_device *drm,
 				     struct drm_atomic_state *state);