gpu: nvgpu: Update generic platform

This patch adds .is_railgated() callback for the generic gpu platform.

Change-Id: Ief13a6fba82b376aafbe861e8f3823a19bb7f679
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/433059
Reviewed-by: Hiroshi Doyu <hdoyu@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/platform_gk20a_generic.c b/drivers/gpu/nvgpu/gk20a/platform_gk20a_generic.c
index 5000db7f..50154617 100644
--- a/drivers/gpu/nvgpu/gk20a/platform_gk20a_generic.c
+++ b/drivers/gpu/nvgpu/gk20a/platform_gk20a_generic.c
@@ -27,6 +27,17 @@
 #include "gk20a.h"
 
 /*
+ * gk20a_generic_is_railgated()
+ *
+ * Check status of gk20a power rail
+ */
+
+static bool gk20a_generic_is_railgated(struct platform_device *pdev)
+{
+        return !tegra_powergate_is_powered(TEGRA_POWERGATE_GPU);
+}
+
+/*
  * gk20a_generic_railgate()
  *
  * Gate (disable) gk20a power rail
@@ -108,6 +119,7 @@ static int gk20a_generic_late_probe(struct platform_device *dev)
 struct gk20a_platform gk20a_generic_platform = {
         .railgate = gk20a_generic_railgate,
         .unrailgate = gk20a_generic_unrailgate,
+        .is_railgated = gk20a_generic_is_railgated,
 
         .probe = gk20a_generic_probe,
         .late_probe = gk20a_generic_late_probe,