Richard Zhao bf14c2a0fa gpu: nvgpu: railgate returns early if no platform implementation ...

If platform didn't set railgate/unrailgate callbacks, it means it does
not support railgate.

It avoids vgpu calling tegra_fuse_clock_disable/enable.

Bug 200436689
Jira EVLR-2983

Change-Id: I759dc23145429a59f40cec6e9c1de9536dcf43c4
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1821663
Reviewed-by: svc-misra-checker <svc-misra-checker@nvidia.com>
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vinod Gopalakrishnakurup <vinodg@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2018-09-13 12:05:00 -07:00

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