drm/v3d: Hook up the runtime PM ops.

raspberrypi inclusion
category: feature
bugzilla: 50432

--------------------------------

In translating the runtime PM code from vc4, I missed the ".pm"
assignment to actually connect them up.  Fixes missing MMU setup if
runtime PM resets V3D.
Signed-off-by: NEric Anholt <eric@anholt.net>
(cherry picked from commit ca197699af29baa8236c74c53d4904ca8957ee06)
Signed-off-by: NFang Yafen <yafen@iscas.ac.cn>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/gpu/drm/v3d/v3d_drv.c

@@ -70,7 +70,7 @@ static int v3d_runtime_resume(struct device *dev)
 }
 #endif
 
-static const struct dev_pm_ops v3d_v3d_pm_ops = {
+static const struct dev_pm_ops v3d_pm_ops = {
 	SET_RUNTIME_PM_OPS(v3d_runtime_suspend, v3d_runtime_resume, NULL)
 };
 
@@ -356,6 +356,7 @@ static struct platform_driver v3d_platform_driver = {
 	.driver		= {
 		.name	= "v3d",
 		.of_match_table = v3d_of_match,
+		.pm = &v3d_pm_ops,
 	},
 };