[v3,07/13] media: platform: mtk-mdp3: avoid multiple driver registrations
Commit Message
The number of MDP3 driver probes depends on the registered clocks of MMSYS.
Because VPPSYS0 and VPPSYS1 are used in MT8195 MDP3, it is necessary to
avoid multiple driver registrations.
Signed-off-by: Moudy Ho <moudy.ho@mediatek.com>
---
drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c | 7 ++++++-
drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h | 1 +
2 files changed, 7 insertions(+), 1 deletion(-)
@@ -187,6 +187,11 @@ static int mdp_probe(struct platform_device *pdev)
mdp->pdev = pdev;
mdp->mdp_data = of_device_get_match_data(&pdev->dev);
+ if (strcmp(dev->of_node->name, MDP_NODE_NAME)) {
+ platform_set_drvdata(pdev, mdp);
+ goto success_return;
+ }
+
mm_pdev = __get_pdev_by_id(pdev, NULL, MDP_INFRA_MMSYS);
if (IS_ERR_OR_NULL(mm_pdev)) {
ret = -ENODEV;
@@ -224,7 +229,6 @@ static int mdp_probe(struct platform_device *pdev)
p = (id && mm2_pdev) ? mm2_pdev : mm_pdev;
m = (id && mm2_pdev) ?
mdp->mdp_mutex2 : mdp->mdp_mutex;
-
if (m[mutex_id])
continue;
m[mutex_id] = mtk_mutex_get(&p->dev);
@@ -293,6 +297,7 @@ static int mdp_probe(struct platform_device *pdev)
goto err_unregister_device;
}
+success_return:
dev_dbg(dev, "mdp-%d registered successfully\n", pdev->id);
return 0;
@@ -14,6 +14,7 @@
#include "mtk-mdp3-comp.h"
#include "mtk-mdp3-vpu.h"
+#define MDP_NODE_NAME "mdp3-rdma0"
#define MDP_MODULE_NAME "mtk-mdp3"
#define MDP_DEVICE_NAME "MediaTek MDP3"
#define MDP_PHANDLE_NAME "mediatek,mdp3"