gpu: nvgpu: remove gk20a_handle

Remove static variable gk20a_handle used to store pointer to
struct gk20a

Use below device tree APIs to get pointer to platform_device
and then struct gk20a
device_node = of_find_matching_node()
platform_device = of_find_device_by_node(device_node)

Also, use two versions of do_idle()/do_unidle() APIs -
one will receive void (to be used from outside GPU driver)
and another will receive platform_device (to be used within
GPU driver where it is available)

Change-Id: I9f2c7610646c5fbcd3d99a1b03dc0364201272a8
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/496508
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Ken Adams <kadams@nvidia.com>
GVS: Gerrit_Virtual_Submit

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index b6d73343..83c4e147 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -712,6 +712,8 @@ void gk20a_enable(struct gk20a *g, u32 units);
 void gk20a_reset(struct gk20a *g, u32 units);
 int gk20a_get_client(struct gk20a *g);
 void gk20a_put_client(struct gk20a *g);
+int __gk20a_do_idle(struct platform_device *pdev);
+int __gk20a_do_unidle(struct platform_device *pdev);
 
 const struct firmware *
 gk20a_request_firmware(struct gk20a *g, const char *fw_name);