video: tegra: host: support genpd subdomain remove

Add nvhost_unregister_client_domain() for removing a subdomain from
host1x genpd, i.e. undoing nvhost_register_client_domain().

Bug 1476801

Change-Id: Ib79b5a6a60bbc668d1bad1be3c45b30c60149d05
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/601553
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/nvhost.h b/include/linux/nvhost.h
index 9243b546a..a15d6f4ab 100644
--- a/include/linux/nvhost.h
+++ b/include/linux/nvhost.h
@@ -319,8 +319,9 @@ bool nvhost_module_powered_ext(struct platform_device *dev);
 int nvhost_module_busy_ext(struct platform_device *dev);
 void nvhost_module_idle_ext(struct platform_device *dev);
 
-/* public api to register a subdomain */
+/* public api to register/unregister a subdomain */
 void nvhost_register_client_domain(struct generic_pm_domain *domain);
+void nvhost_unregister_client_domain(struct generic_pm_domain *domain);
 
 /* public host1x sync-point management APIs */
 u32 nvhost_get_syncpt_client_managed(const char *syncpt_name);