gpu: nvgpu: register clkdev for DVFS purposes

Change-Id: I354d4bbddb2aba2a1a668cc0401437f1e2403b79
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-on: http://git-master/r/1259495
GVS: Gerrit_Virtual_Submit
Reviewed-by: Jon Mayo <jmayo@nvidia.com>

2 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/clk_gk20a.h b/drivers/gpu/nvgpu/gk20a/clk_gk20a.h
index 43583f2e..8400b8ba 100644
--- a/drivers/gpu/nvgpu/gk20a/clk_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/clk_gk20a.h
@@ -17,6 +17,7 @@
 #define CLK_GK20A_H
 
 #include <linux/mutex.h>
+#include <linux/clkdev.h>
 #include <linux/clk-provider.h>
 
 #define GPUFREQ_TABLE_END     ~(u32)1
diff --git a/drivers/gpu/nvgpu/gm20b/clk_gm20b.c b/drivers/gpu/nvgpu/gm20b/clk_gm20b.c
index 2f54e4bb..5b3df718 100644
--- a/drivers/gpu/nvgpu/gm20b/clk_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/clk_gm20b.c
@@ -25,6 +25,7 @@
 #include <linux/clk/tegra.h>
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 4, 0))
 #include <soc/tegra/fuse.h>
+#include <soc/tegra/tegra-dvfs.h>
 #else
 #include <linux/tegra-fuse.h>
 #endif
@@ -1310,6 +1311,8 @@ int gm20b_register_gpcclk(struct gk20a *g) {
         }
 
         clk->tegra_clk = c;
+        clk_register_clkdev(c, "gpcclk", "gpcclk");
+
         return 0;
 }
 #endif /* CONFIG_COMMON_CLK */