gpu: nvgpu: enable devfreq for silicon only

gpu frequency scaling is available only on silicon
platforms. Added check for silicon platform before
enabling scaling init.

Bug 2049965
Bug 2039013
Bug 200377508

Change-Id: Ie780147cee904137e4618e17162e5cedba4987ee
Signed-off-by: seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1642529
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/module.c b/drivers/gpu/nvgpu/common/linux/module.c
index b0cad0ce..814f2fc9 100644
--- a/drivers/gpu/nvgpu/common/linux/module.c
+++ b/drivers/gpu/nvgpu/common/linux/module.c
@@ -265,7 +265,8 @@ int gk20a_pm_finalize_poweron(struct device *dev)
                 goto done;
 
         /* Initialise scaling: it will initialize scaling drive only once */
-        if (IS_ENABLED(CONFIG_GK20A_DEVFREQ)) {
+        if (IS_ENABLED(CONFIG_GK20A_DEVFREQ) &&
+                        nvgpu_platform_is_silicon(g)) {
                 gk20a_scale_init(dev);
                 if (platform->initscale)
                         platform->initscale(dev);