diff mbox series

[v3,07/13] media: platform: mtk-mdp3: avoid multiple driver registrations

Message ID 20230113090321.25128-8-moudy.ho@mediatek.com
State New
Headers
Series add support MDP3 on MT8195 platform |

Commit Message

Moudy Ho (何宗原) Jan. 13, 2023, 9:03 a.m. UTC 
  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(-)
diff mbox series

Patch

diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
index 56c42bd3f16b..6e3abadef6cd 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
@@ -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;
 
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
index ce9e2b9850e6..e3e60b106c72 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
@@ -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"