drm/tegra: Add gr2d device

Add client driver for 2D device, and IOCTLs to pass work to host1x
channel for 2D.

Also adds functions that can be called to access sync points from
DRM.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index 8ce9889cefd5..28e28a23d444 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c
@@ -209,11 +209,17 @@ static int __init tegra_host1x_init(void)
         err = platform_driver_register(&tegra_hdmi_driver);
         if (err < 0)
                 goto unregister_dc;
+
+        err = platform_driver_register(&tegra_gr2d_driver);
+        if (err < 0)
+                goto unregister_hdmi;
 #endif
 
         return 0;
 
 #ifdef CONFIG_DRM_TEGRA
+unregister_hdmi:
+        platform_driver_unregister(&tegra_hdmi_driver);
 unregister_dc:
         platform_driver_unregister(&tegra_dc_driver);
 unregister_host1x:
@@ -226,6 +232,7 @@ module_init(tegra_host1x_init);
 static void __exit tegra_host1x_exit(void)
 {
 #ifdef CONFIG_DRM_TEGRA
+        platform_driver_unregister(&tegra_gr2d_driver);
         platform_driver_unregister(&tegra_hdmi_driver);
         platform_driver_unregister(&tegra_dc_driver);
 #endif