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media: platform: mtk-mdp3: avoid multiple driver registrations

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The amount of MDP3 driver probes is determined by the registered
clocks of MMSYS.
Since MT8195 MDP3 utilizes VPPSYS0 and VPPSYS1, it's necessary to
prevent multiple driver registrations.

Signed-off-by: Moudy Ho <moudy.ho@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Moudy Ho 2023-12-20 11:18:32 +01:00 committed by Mauro Carvalho Chehab
parent 92cdfc39af
commit 4294b9d6c8
3 changed files with 10 additions and 0 deletions
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1
drivers/media/platform/mediatek/mdp3/mdp_cfg_data.c
View File

@ -410,6 +410,7 @@ static const struct mdp_pipe_info mt8183_pipe_info[] = {
const struct mtk_mdp_driver_data mt8183_mdp_driver_data = {
.mdp_plat_id = MT8183,
.mdp_con_res = 0x14001000,
.mdp_probe_infra = mt8183_mdp_probe_infra,
.mdp_cfg = &mt8183_plat_cfg,
.mdp_mutex_table_idx = mt8183_mutex_idx,

8
drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
View File

@ -211,6 +211,7 @@ static int mdp_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct mdp_dev *mdp;
struct platform_device *mm_pdev;
struct resource *res;
int ret, i, mutex_id;
mdp = kzalloc(sizeof(*mdp), GFP_KERNEL);
@ -222,6 +223,12 @@ static int mdp_probe(struct platform_device *pdev)
mdp->pdev = pdev;
mdp->mdp_data = of_device_get_match_data(&pdev->dev);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res->start != mdp->mdp_data->mdp_con_res) {
platform_set_drvdata(pdev, mdp);
goto success_return;
}
ret = mdp_mm_subsys_deploy(mdp, MDP_INFRA_MMSYS);
if (ret)
goto err_destroy_device;
@ -311,6 +318,7 @@ 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;

1
drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
View File

@ -71,6 +71,7 @@ enum mdp_pipe_id {
struct mtk_mdp_driver_data {
const int mdp_plat_id;
const resource_size_t mdp_con_res;
const struct of_device_id *mdp_probe_infra;
const struct mdp_platform_config *mdp_cfg;
const u32 *mdp_mutex_table_idx;