gpu: nvgpu: use platform data for ptimer source rate

Instead of depending on clock frame-work, use platform data
for ptimer source rate. Removed ptimerscaling10x platform
data, and use ptimer source frequency to calculate
ptimerscaling factor.

Reviewed-on: http://git-master/r/819030
(cherry picked from commit dd291334d54dab80cab7eb1656dffc48a59610b4)

Change-Id: I7638ce9875a6e440bbfc2ba2da0d0b094b2700ff
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: http://git-master/r/827300
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/platform_gk20a.h b/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
index 0c3c6ff3..c1444985 100644
--- a/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
@@ -97,9 +97,6 @@ struct gk20a_platform {
         /* Default big page size 64K or 128K */
         u32 default_big_page_size;
 
-        /* scaling factor for ptimer */
-        u32  ptimerscaling10x;
-
         /* Initialize the platform interface of the gk20a driver.
          *
          * The platform implementation of this function must
@@ -191,6 +188,8 @@ struct gk20a_platform {
         u64 virt_handle;
         struct task_struct *intr_handler;
 #endif
+        /* source frequency for ptimer in hz */
+        u32 ptimer_src_freq;
 
         bool has_cde;
 };