Merge tag 'drm/tegra/for-5.6-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next

drm/tegra: Changes for v5.6-rc1

This contains a small set of mostly fixes and some minor improvements.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thierry Reding <thierry.reding@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200111004835.2412858-1-thierry.reding@gmail.com

1 files changed, 13 insertions, 2 deletions

diff --git a/include/linux/host1x.h b/include/linux/host1x.h
index 6edeb9228c4e..62d216ff1097 100644
--- a/include/linux/host1x.h
+++ b/include/linux/host1x.h
@@ -24,16 +24,20 @@ struct iommu_group;
  * struct host1x_client_ops - host1x client operations
  * @init: host1x client initialization code
  * @exit: host1x client tear down code
+ * @suspend: host1x client suspend code
+ * @resume: host1x client resume code
  */
 struct host1x_client_ops {
 	int (*init)(struct host1x_client *client);
 	int (*exit)(struct host1x_client *client);
+	int (*suspend)(struct host1x_client *client);
+	int (*resume)(struct host1x_client *client);
 };
 
 /**
  * struct host1x_client - host1x client structure
  * @list: list node for the host1x client
- * @parent: pointer to struct device representing the host1x controller
+ * @host: pointer to struct device representing the host1x controller
  * @dev: pointer to struct device backing this host1x client
  * @group: IOMMU group that this client is a member of
  * @ops: host1x client operations
@@ -44,7 +48,7 @@ struct host1x_client_ops {
  */
 struct host1x_client {
 	struct list_head list;
-	struct device *parent;
+	struct device *host;
 	struct device *dev;
 	struct iommu_group *group;
 
@@ -55,6 +59,10 @@ struct host1x_client {
 
 	struct host1x_syncpt **syncpts;
 	unsigned int num_syncpts;
+
+	struct host1x_client *parent;
+	unsigned int usecount;
+	struct mutex lock;
 };
 
 /*
@@ -309,6 +317,9 @@ int host1x_device_exit(struct host1x_device *device);
 int host1x_client_register(struct host1x_client *client);
 int host1x_client_unregister(struct host1x_client *client);
 
+int host1x_client_suspend(struct host1x_client *client);
+int host1x_client_resume(struct host1x_client *client);
+
 struct tegra_mipi_device;
 
 struct tegra_mipi_device *tegra_mipi_request(struct device *device);