drm/tegra: Add NVDEC driver

Add support for booting and using NVDEC on Tegra210, Tegra186
and Tegra194 to the Host1x and TegraDRM drivers. Booting in
secure mode is not currently supported.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>

drivers/gpu/drm/tegra/Makefile

@@ -20,7 +20,8 @@ tegra-drm-y := \
 	gr2d.o \
 	gr3d.o \
 	falcon.o \
-	vic.o
+	vic.o \
+	nvdec.o
 
 tegra-drm-y += trace.o
 

drivers/gpu/drm/tegra/drm.c

@@ -1315,15 +1315,18 @@ static const struct of_device_id host1x_drm_subdevs[] = {
 	{ .compatible = "nvidia,tegra210-sor", },
 	{ .compatible = "nvidia,tegra210-sor1", },
 	{ .compatible = "nvidia,tegra210-vic", },
+	{ .compatible = "nvidia,tegra210-nvdec", },
 	{ .compatible = "nvidia,tegra186-display", },
 	{ .compatible = "nvidia,tegra186-dc", },
 	{ .compatible = "nvidia,tegra186-sor", },
 	{ .compatible = "nvidia,tegra186-sor1", },
 	{ .compatible = "nvidia,tegra186-vic", },
+	{ .compatible = "nvidia,tegra186-nvdec", },
 	{ .compatible = "nvidia,tegra194-display", },
 	{ .compatible = "nvidia,tegra194-dc", },
 	{ .compatible = "nvidia,tegra194-sor", },
 	{ .compatible = "nvidia,tegra194-vic", },
+	{ .compatible = "nvidia,tegra194-nvdec", },
 	{ /* sentinel */ }
 };
 
@@ -1347,6 +1350,7 @@ static struct platform_driver * const drivers[] = {
 	&tegra_gr2d_driver,
 	&tegra_gr3d_driver,
 	&tegra_vic_driver,
+	&tegra_nvdec_driver,
 };
 
 static int __init host1x_drm_init(void)

drivers/gpu/drm/tegra/drm.h

@@ -185,5 +185,6 @@ extern struct platform_driver tegra_sor_driver;
 extern struct platform_driver tegra_gr2d_driver;
 extern struct platform_driver tegra_gr3d_driver;
 extern struct platform_driver tegra_vic_driver;
+extern struct platform_driver tegra_nvdec_driver;
 
 #endif /* HOST1X_DRM_H */