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, 2 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a_sysfs.c b/drivers/gpu/nvgpu/gk20a/gk20a_sysfs.c
index 687147ed..b23a1406 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a_sysfs.c
+++ b/drivers/gpu/nvgpu/gk20a/gk20a_sysfs.c
@@ -543,7 +543,7 @@ static ssize_t force_idle_store(struct device *device,
                 if (g->forced_idle)
                         return count; /* do nothing */
                 else {
-                        err = gk20a_do_idle();
+                        err = __gk20a_do_idle(ndev);
                         if (!err) {
                                 g->forced_idle = 1;
                                 dev_info(device, "gpu is idle : %d\n",
@@ -554,7 +554,7 @@ static ssize_t force_idle_store(struct device *device,
                 if (!g->forced_idle)
                         return count; /* do nothing */
                 else {
-                        err = gk20a_do_unidle();
+                        err = __gk20a_do_unidle(ndev);
                         if (!err) {
                                 g->forced_idle = 0;
                                 dev_info(device, "gpu is idle : %d\n",