gpu: nvgpu: Disable GM20b idle slow down by default

Change-Id: I955fe300702f268e5403aab6f47859dd113f92a3
Signed-off-by: Alex Frid <afrid@nvidia.com>
Reviewed-on: http://git-master/r/487301
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bo Yan <byan@nvidia.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gm20b/clk_gm20b.c b/drivers/gpu/nvgpu/gm20b/clk_gm20b.c
index fffac551..ee4103fa 100644
--- a/drivers/gpu/nvgpu/gm20b/clk_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/clk_gm20b.c
@@ -612,6 +612,13 @@ static int gm20b_init_clk_setup_hw(struct gk20a *g)
                          trim_sys_bypassctrl_gpcpll_vco_f());
         gk20a_writel(g, trim_sys_bypassctrl_r(), data);
 
+        /* Disable idle slow down */
+        data = gk20a_readl(g, therm_clk_slowdown_r(0));
+        data = set_field(data, therm_clk_slowdown_idle_factor_m(),
+                         therm_clk_slowdown_idle_factor_disabled_f());
+        gk20a_writel(g, therm_clk_slowdown_r(0), data);
+        gk20a_readl(g, therm_clk_slowdown_r(0));
+
         return 0;
 }