@@ -656,12 +656,44 @@ static struct platform_driver etnaviv_platform_driver = {
},
};
-static struct platform_device *etnaviv_drm;
+static struct platform_device *etnaviv_platform_device;
-static int __init etnaviv_init(void)
+static int etnaviv_create_platform_device(const char *name,
+ struct platform_device **ppdev)
{
struct platform_device *pdev;
int ret;
+
+ pdev = platform_device_alloc(name, PLATFORM_DEVID_NONE);
+ if (!pdev)
+ return -ENOMEM;
+
+ ret = platform_device_add(pdev);
+ if (ret) {
+ platform_device_put(pdev);
+ return ret;
+ }
+
+ *ppdev = pdev;
+
+ return 0;
+}
+
+static void etnaviv_destroy_platform_device(struct platform_device **ppdev)
+{
+ struct platform_device *pdev = *ppdev;
+
+ if (!pdev)
+ return;
+
+ platform_device_unregister(pdev);
+
+ *ppdev = NULL;
+}
+
+static int __init etnaviv_init(void)
+{
+ int ret;
struct device_node *np;
etnaviv_validate_init();
@@ -681,23 +713,13 @@ static int __init etnaviv_init(void)
for_each_compatible_node(np, NULL, "vivante,gc") {
if (!of_device_is_available(np))
continue;
+ of_node_put(np);
- pdev = platform_device_alloc("etnaviv", PLATFORM_DEVID_NONE);
- if (!pdev) {
- ret = -ENOMEM;
- of_node_put(np);
- goto unregister_platform_driver;
- }
-
- ret = platform_device_add(pdev);
- if (ret) {
- platform_device_put(pdev);
- of_node_put(np);
+ ret = etnaviv_create_platform_device("etnaviv",
+ &etnaviv_platform_device);
+ if (ret)
goto unregister_platform_driver;
- }
- etnaviv_drm = pdev;
- of_node_put(np);
break;
}
@@ -713,7 +735,7 @@ module_init(etnaviv_init);
static void __exit etnaviv_exit(void)
{
- platform_device_unregister(etnaviv_drm);
+ etnaviv_destroy_platform_device(&etnaviv_platform_device);
platform_driver_unregister(&etnaviv_platform_driver);
platform_driver_unregister(&etnaviv_gpu_driver);
}
Also rename the virtual master platform device as etnaviv_platform_device, for better reflection that it is a platform device, not a DRM device. Another benefit is that we no longer need to call of_node_put() for three different cases, Instead, we only need to call it once. Signed-off-by: Sui Jingfeng <suijingfeng@loongson.cn> --- drivers/gpu/drm/etnaviv/etnaviv_drv.c | 56 +++++++++++++++++++-------- 1 file changed, 39 insertions(+), 17 deletions(-)