gpu: nvgpu: Register as subdomain of host1x

Add gk20a as a sub power domain of host1x. This enforces keeping
host1x on when using gk20a.

Bug 200003112

Change-Id: I08db595bc7b819d86d33fb98af0d8fb4de369463
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/407543
Reviewed-by: Riham Haidar <rhaidar@nvidia.com>
Tested-by: Riham Haidar <rhaidar@nvidia.com>

1 files changed, 0 insertions, 28 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/platform_gk20a.h b/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
index 09f348cb..90333eef 100644
--- a/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
@@ -71,17 +71,6 @@ struct gk20a_platform {
          */
         int (*late_probe)(struct platform_device *dev);
 
-        /* Called before submitting work to the gpu. The platform may use this
-         * hook to ensure that any other hw modules that the gpu depends on are
-         * powered. The platform implementation must count refs to this call. */
-        int (*channel_busy)(struct platform_device *dev);
-
-        /* Called after the work on the gpu is completed. The platform may use
-         * this hook to release power refs to any other hw modules that the gpu
-         * depends on. The platform implementation must count refs to this
-         * call. */
-        void (*channel_idle)(struct platform_device *dev);
-
         /* This function is called to allocate secure memory (memory that the
          * CPU cannot see). The function should fill the context buffer
          * descriptor (especially fields destroy, sgt, size).
@@ -134,23 +123,6 @@ extern struct gk20a_platform gk20a_generic_platform;
 extern struct gk20a_platform gk20a_tegra_platform;
 #endif
 
-static inline int gk20a_platform_channel_busy(struct platform_device *dev)
-{
-        struct gk20a_platform *p = gk20a_get_platform(dev);
-        int ret = 0;
-        if (p->channel_busy)
-                ret = p->channel_busy(dev);
-
-        return ret;
-}
-
-static inline void gk20a_platform_channel_idle(struct platform_device *dev)
-{
-        struct gk20a_platform *p = gk20a_get_platform(dev);
-        if (p->channel_idle)
-                p->channel_idle(dev);
-}
-
 static inline bool gk20a_platform_has_syncpoints(struct platform_device *dev)
 {
         struct gk20a_platform *p = gk20a_get_platform(dev);