gpu: nvgpu: make pm config as platform data

Make gpu power management  feature configurations
as platform data. Keep existing sttaus for gk20a
and disable all power features for gm20b.

Bug 1523728

Change-Id: Ife7786863f18e21b882ac77085c7abc7c84d4cfc
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: http://git-master/r/426369
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Supriya Sharatkumar <ssharatkumar@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 12 insertions, 8 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.c b/drivers/gpu/nvgpu/gk20a/gk20a.c
index c13c9614..c1150bac 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.c
@@ -1455,14 +1455,18 @@ static int gk20a_probe(struct platform_device *dev)
         if (tegra_platform_is_silicon())
                 gk20a->timeouts_enabled = true;
 
-        /* Set up initial clock gating settings */
-        if (tegra_platform_is_silicon()) {
-                gk20a->slcg_enabled = true;
-                gk20a->blcg_enabled = true;
-                gk20a->elcg_enabled = true;
-                gk20a->elpg_enabled = true;
-                gk20a->aelpg_enabled = true;
-        }
+        /* Set up initial power settings. For non-slicon platforms, disable *
+         * power features and for silicon platforms, read from platform data */
+        gk20a->slcg_enabled =
+                tegra_platform_is_silicon() ? platform->enable_slcg : false;
+        gk20a->blcg_enabled =
+                tegra_platform_is_silicon() ? platform->enable_blcg : false;
+        gk20a->elcg_enabled =
+                tegra_platform_is_silicon() ? platform->enable_elcg : false;
+        gk20a->elpg_enabled =
+                tegra_platform_is_silicon() ? platform->enable_elpg : false;
+        gk20a->aelpg_enabled =
+                tegra_platform_is_silicon() ? platform->enable_aelpg : false;
 
         gk20a_create_sysfs(dev);