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/clk/clk_mclk.h b/drivers/gpu/nvgpu/clk/clk_mclk.h
index 731f289d..64eee5ac 100644
--- a/drivers/gpu/nvgpu/clk/clk_mclk.h
+++ b/drivers/gpu/nvgpu/clk/clk_mclk.h
@@ -47,6 +47,7 @@ struct clk_mclk_state {
 };
 
 int clk_mclkseq_init_mclk_gddr5(struct gk20a *g);
+void clk_mclkseq_deinit_mclk_gddr5(struct gk20a *g);
 int clk_mclkseq_change_mclk_gddr5(struct gk20a *g, u16 val);
 
 #endif