drm/nouveau/platform: add GPU speedo information to nouveau platform

For GK20A we need the GPU speedo value to calculate voltage levels.

Signed-off-by: Vince Hsu <vinceh@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nouveau_platform.c

@@ -27,6 +27,7 @@
 #include <linux/of.h>
 #include <linux/reset.h>
 #include <linux/regulator/consumer.h>
+#include <soc/tegra/fuse.h>
 #include <soc/tegra/pmc.h>
 
 #include "nouveau_drm.h"
@@ -128,6 +129,7 @@ static int nouveau_platform_probe(struct platform_device *pdev)
 	}
 
 	device->gpu = gpu;
+	device->gpu_speedo = tegra_sku_info.gpu_speedo_value;
 
 	err = drm_dev_register(drm, 0);
 	if (err < 0)

drivers/gpu/drm/nouveau/nouveau_platform.h

@@ -41,6 +41,8 @@ struct nouveau_platform_device {
 	struct nouveau_device device;
 
 	struct nouveau_platform_gpu *gpu;
+
+	int gpu_speedo;
 };
 
 #define nv_device_to_platform(d)                                               \