gpu: nvgpu: gv11b: add chip specific init function

- Add gv11b specific init function
- This init function will set a chip specific
value for emc3d_ratio and then call the gp10b
init function

Bug 200438743

Change-Id: If6128c2156e4b65086827615909ed17cce1d9224
Signed-off-by: Mubushir Rahman <mubushirr@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1808673
Reviewed-by: svc-misra-checker <svc-misra-checker@nvidia.com>
Reviewed-by: Ilan Aelion <iaelion@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, 16 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/os/linux/platform_gv11b_tegra.c b/drivers/gpu/nvgpu/os/linux/platform_gv11b_tegra.c
index edb3263c..1b4a5456 100644
--- a/drivers/gpu/nvgpu/os/linux/platform_gv11b_tegra.c
+++ b/drivers/gpu/nvgpu/os/linux/platform_gv11b_tegra.c
@@ -44,6 +44,21 @@
 #include "platform_gk20a_tegra.h"
 #include "gv11b/gr_gv11b.h"
 
+#define EMC3D_GV11B_RATIO 500
+
+void gv11b_tegra_scale_init(struct device *dev)
+{
+        struct gk20a_platform *platform = gk20a_get_platform(dev);
+        struct gk20a_scale_profile *profile = platform->g->scale_profile;
+
+        if (!profile)
+                return;
+
+        platform->g->emc3d_ratio = EMC3D_GV11B_RATIO;
+
+        gp10b_tegra_scale_init(dev);
+}
+
 static void gv11b_tegra_scale_exit(struct device *dev)
 {
         struct gk20a_platform *platform = gk20a_get_platform(dev);
@@ -238,7 +253,7 @@ struct gk20a_platform gv11b_tegra_platform = {
         .get_clk_freqs = gp10b_clk_get_freqs,
 
         /* frequency scaling configuration */
-        .initscale = gp10b_tegra_scale_init,
+        .initscale = gv11b_tegra_scale_init,
         .prescale = gp10b_tegra_prescale,
         .postscale = gp10b_tegra_postscale,
         .devfreq_governor = "nvhost_podgov",