gpu: nvgpu: check return value of mutex_init in mclk code

- check return value of nvgpu_mutex_init in clk_mclk.c
- declare new callback g->ops.pmu.mclk_deinit() to
  deinitialize mclk mutexes
- and define this callback for gp106
- add corresponding nvgpu_mutex_destroy calls in
  deinitialization

Jira NVGPU-13

Change-Id: I1491c084d330ac9756c9520477e6fe494560e651
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1321294
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gp106/pmu_gp106.c b/drivers/gpu/nvgpu/gp106/pmu_gp106.c
index bb9c63ca..a2eef6ff 100644
--- a/drivers/gpu/nvgpu/gp106/pmu_gp106.c
+++ b/drivers/gpu/nvgpu/gp106/pmu_gp106.c
@@ -439,6 +439,7 @@ void gp106_init_pmu_ops(struct gpu_ops *gops)
         gops->pmu.dump_secure_fuses = NULL;
         gops->pmu.reset = gp106_falcon_reset;
         gops->pmu.mclk_init = clk_mclkseq_init_mclk_gddr5;
+        gops->pmu.mclk_deinit = clk_mclkseq_deinit_mclk_gddr5;
         gops->pmu.is_pmu_supported = gp106_is_pmu_supported;
 
         gk20a_dbg_fn("done");