gpu: nvgpu: Add dGPU clocks support

JIRA DNVGPU-45

Change-Id: I237ce81e31b036c05c82d46eea8694ffe1c2e3df
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Signed-off-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-on: http://git-master/r/1205849
(cherry picked from commit 9a4006f76b75a8ad525e7aa5ad1f609aaae49126)
Reviewed-on: http://git-master/r/1227256
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.c b/drivers/gpu/nvgpu/gk20a/gk20a.c
index ebe2dca4..c9f84041 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.c
@@ -63,6 +63,9 @@
 #include "hal.h"
 #include "vgpu/vgpu.h"
 #include "pci.h"
+#ifdef CONFIG_ARCH_TEGRA_18x_SOC
+#include "pstate/pstate.h"
+#endif
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/gk20a.h>
@@ -956,6 +959,16 @@ int gk20a_pm_finalize_poweron(struct device *dev)
                 goto done;
         }
 
+#ifdef CONFIG_ARCH_TEGRA_18x_SOC
+        if (g->ops.pmupstate) {
+                err = gk20a_init_pstate_support(g);
+                if (err) {
+                        gk20a_err(dev, "failed to init pstates");
+                        goto done;
+                }
+        }
+#endif
+
         err = gk20a_init_pmu_support(g);
         if (err) {
                 gk20a_err(dev, "failed to init gk20a pmu");
@@ -968,6 +981,16 @@ int gk20a_pm_finalize_poweron(struct device *dev)
                 goto done;
         }
 
+#ifdef CONFIG_ARCH_TEGRA_18x_SOC
+        if (g->ops.pmupstate) {
+                err = gk20a_init_pstate_pmu_support(g);
+                if (err) {
+                        gk20a_err(dev, "failed to init pstates");
+                        goto done;
+                }
+        }
+#endif
+
         if (g->ops.pmu.mclk_init) {
                 err = g->ops.pmu.mclk_init(g);
                 if (err) {