[PATCH v7 01/12] media: platform: mtk-mdp3: add support second sets of MMSYS

From: Moudy Ho
Date: Thu Oct 12 2023 - 05:12:27 EST

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The MT8195 chipset features two MMSYS subsets: VPPSYS0 and VPPSYS1.
These subsets coordinate and control the clock, power, and
register settings required for the components of MDP3.

Signed-off-by: Moudy Ho <moudy.ho@xxxxxxxxxxxx>
---
.../platform/mediatek/mdp3/mdp_cfg_data.c | 44 ++++++-------
.../platform/mediatek/mdp3/mtk-mdp3-comp.h | 1 +
.../platform/mediatek/mdp3/mtk-mdp3-core.c | 61 ++++++++++++++++---
.../platform/mediatek/mdp3/mtk-mdp3-core.h | 18 +++++-
4 files changed, 92 insertions(+), 32 deletions(-)

diff --git a/drivers/media/platform/mediatek/mdp3/mdp_cfg_data.c b/drivers/media/platform/mediatek/mdp3/mdp_cfg_data.c
index 502eeae0bfdc..fcc582292b77 100644
--- a/drivers/media/platform/mediatek/mdp3/mdp_cfg_data.c
+++ b/drivers/media/platform/mediatek/mdp3/mdp_cfg_data.c
@@ -73,75 +73,75 @@ static const u32 mt8183_mutex_idx[MDP_MAX_COMP_COUNT] = {

static const struct mdp_comp_data mt8183_mdp_comp_data[MDP_MAX_COMP_COUNT] = {
[MDP_COMP_WPEI] = {
- {MDP_COMP_TYPE_WPEI, 0, MT8183_MDP_COMP_WPEI},
+ {MDP_COMP_TYPE_WPEI, 0, MT8183_MDP_COMP_WPEI, MDP_MM_SUBSYS_0},
{0, 0, 0}
},
[MDP_COMP_WPEO] = {
- {MDP_COMP_TYPE_EXTO, 2, MT8183_MDP_COMP_WPEO},
+ {MDP_COMP_TYPE_EXTO, 2, MT8183_MDP_COMP_WPEO, MDP_MM_SUBSYS_0},
{0, 0, 0}
},
[MDP_COMP_WPEI2] = {
- {MDP_COMP_TYPE_WPEI, 1, MT8183_MDP_COMP_WPEI2},
+ {MDP_COMP_TYPE_WPEI, 1, MT8183_MDP_COMP_WPEI2, MDP_MM_SUBSYS_0},
{0, 0, 0}
},
[MDP_COMP_WPEO2] = {
- {MDP_COMP_TYPE_EXTO, 3, MT8183_MDP_COMP_WPEO2},
+ {MDP_COMP_TYPE_EXTO, 3, MT8183_MDP_COMP_WPEO2, MDP_MM_SUBSYS_0},
{0, 0, 0}
},
[MDP_COMP_ISP_IMGI] = {
- {MDP_COMP_TYPE_IMGI, 0, MT8183_MDP_COMP_ISP_IMGI},
+ {MDP_COMP_TYPE_IMGI, 0, MT8183_MDP_COMP_ISP_IMGI, MDP_MM_SUBSYS_0},
{0, 0, 4}
},
[MDP_COMP_ISP_IMGO] = {
- {MDP_COMP_TYPE_EXTO, 0, MT8183_MDP_COMP_ISP_IMGO},
+ {MDP_COMP_TYPE_EXTO, 0, MT8183_MDP_COMP_ISP_IMGO, MDP_MM_SUBSYS_0},
{0, 0, 4}
},
[MDP_COMP_ISP_IMG2O] = {
- {MDP_COMP_TYPE_EXTO, 1, MT8183_MDP_COMP_ISP_IMG2O},
+ {MDP_COMP_TYPE_EXTO, 1, MT8183_MDP_COMP_ISP_IMG2O, MDP_MM_SUBSYS_0},
{0, 0, 0}
},
[MDP_COMP_CAMIN] = {
- {MDP_COMP_TYPE_DL_PATH, 0, MT8183_MDP_COMP_CAMIN},
+ {MDP_COMP_TYPE_DL_PATH, 0, MT8183_MDP_COMP_CAMIN, MDP_MM_SUBSYS_0},
{2, 2, 1}
},
[MDP_COMP_CAMIN2] = {
- {MDP_COMP_TYPE_DL_PATH, 1, MT8183_MDP_COMP_CAMIN2},
+ {MDP_COMP_TYPE_DL_PATH, 1, MT8183_MDP_COMP_CAMIN2, MDP_MM_SUBSYS_0},
{2, 4, 1}
},
[MDP_COMP_RDMA0] = {
- {MDP_COMP_TYPE_RDMA, 0, MT8183_MDP_COMP_RDMA0},
+ {MDP_COMP_TYPE_RDMA, 0, MT8183_MDP_COMP_RDMA0, MDP_MM_SUBSYS_0},
{2, 0, 0}
},
[MDP_COMP_CCORR0] = {
- {MDP_COMP_TYPE_CCORR, 0, MT8183_MDP_COMP_CCORR0},
+ {MDP_COMP_TYPE_CCORR, 0, MT8183_MDP_COMP_CCORR0, MDP_MM_SUBSYS_0},
{1, 0, 0}
},
[MDP_COMP_RSZ0] = {
- {MDP_COMP_TYPE_RSZ, 0, MT8183_MDP_COMP_RSZ0},
+ {MDP_COMP_TYPE_RSZ, 0, MT8183_MDP_COMP_RSZ0, MDP_MM_SUBSYS_0},
{1, 0, 0}
},
[MDP_COMP_RSZ1] = {
- {MDP_COMP_TYPE_RSZ, 1, MT8183_MDP_COMP_RSZ1},
+ {MDP_COMP_TYPE_RSZ, 1, MT8183_MDP_COMP_RSZ1, MDP_MM_SUBSYS_0},
{1, 0, 0}
},
[MDP_COMP_TDSHP0] = {
- {MDP_COMP_TYPE_TDSHP, 0, MT8183_MDP_COMP_TDSHP0},
+ {MDP_COMP_TYPE_TDSHP, 0, MT8183_MDP_COMP_TDSHP0, MDP_MM_SUBSYS_0},
{0, 0, 0}
},
[MDP_COMP_PATH0_SOUT] = {
- {MDP_COMP_TYPE_PATH, 0, MT8183_MDP_COMP_PATH0_SOUT},
+ {MDP_COMP_TYPE_PATH, 0, MT8183_MDP_COMP_PATH0_SOUT, MDP_MM_SUBSYS_0},
{0, 0, 0}
},
[MDP_COMP_PATH1_SOUT] = {
- {MDP_COMP_TYPE_PATH, 1, MT8183_MDP_COMP_PATH1_SOUT},
+ {MDP_COMP_TYPE_PATH, 1, MT8183_MDP_COMP_PATH1_SOUT, MDP_MM_SUBSYS_0},
{0, 0, 0}
},
[MDP_COMP_WROT0] = {
- {MDP_COMP_TYPE_WROT, 0, MT8183_MDP_COMP_WROT0},
+ {MDP_COMP_TYPE_WROT, 0, MT8183_MDP_COMP_WROT0, MDP_MM_SUBSYS_0},
{1, 0, 0}
},
[MDP_COMP_WDMA] = {
- {MDP_COMP_TYPE_WDMA, 0, MT8183_MDP_COMP_WDMA},
+ {MDP_COMP_TYPE_WDMA, 0, MT8183_MDP_COMP_WDMA, MDP_MM_SUBSYS_0},
{1, 0, 0}
},
};
@@ -402,10 +402,10 @@ static const struct mdp_limit mt8183_mdp_def_limit = {
};

static const struct mdp_pipe_info mt8183_pipe_info[] = {
- [MDP_PIPE_WPEI] = {MDP_PIPE_WPEI, 0},
- [MDP_PIPE_WPEI2] = {MDP_PIPE_WPEI2, 1},
- [MDP_PIPE_IMGI] = {MDP_PIPE_IMGI, 2},
- [MDP_PIPE_RDMA0] = {MDP_PIPE_RDMA0, 3}
+ [MDP_PIPE_WPEI] = {MDP_PIPE_WPEI, MDP_MM_SUBSYS_0, 0},
+ [MDP_PIPE_WPEI2] = {MDP_PIPE_WPEI2, MDP_MM_SUBSYS_0, 1},
+ [MDP_PIPE_IMGI] = {MDP_PIPE_IMGI, MDP_MM_SUBSYS_0, 2},
+ [MDP_PIPE_RDMA0] = {MDP_PIPE_RDMA0, MDP_MM_SUBSYS_0, 3}
};

const struct mtk_mdp_driver_data mt8183_mdp_driver_data = {
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.h b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.h
index 20d2bcb77ef9..e89c51e1edb7 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.h
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.h
@@ -138,6 +138,7 @@ struct mdp_comp_match {
enum mdp_comp_type type;
u32 alias_id;
s32 inner_id;
+ s32 subsys_id;
};

/* Used to describe the item order in MDP property */
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
index cc44be10fdb7..fa59f8ab1b47 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
@@ -26,9 +26,10 @@ static const struct of_device_id mdp_of_ids[] = {
MODULE_DEVICE_TABLE(of, mdp_of_ids);

static struct platform_device *__get_pdev_by_id(struct platform_device *pdev,
+ struct platform_device *from,
enum mdp_infra_id id)
{
- struct device_node *node;
+ struct device_node *node, *f = NULL;
struct platform_device *mdp_pdev = NULL;
const struct mtk_mdp_driver_data *mdp_data;
const char *compat;
@@ -46,9 +47,14 @@ static struct platform_device *__get_pdev_by_id(struct platform_device *pdev,
dev_err(&pdev->dev, "have no driver data to find node\n");
return NULL;
}
+
compat = mdp_data->mdp_probe_infra[id].compatible;
+ if (strlen(compat) == 0)
+ return NULL;

- node = of_find_compatible_node(NULL, NULL, compat);
+ if (from)
+ f = from->dev.of_node;
+ node = of_find_compatible_node(f, NULL, compat);
if (WARN_ON(!node)) {
dev_err(&pdev->dev, "find node from id %d failed\n", id);
return NULL;
@@ -148,6 +154,46 @@ void mdp_video_device_release(struct video_device *vdev)
kfree(mdp);
}

+static int mdp_mm_subsys_deploy(struct mdp_dev *mdp, enum mdp_infra_id id)
+{
+ struct platform_device *mm_pdev = NULL;
+ struct device **dev;
+ int i;
+
+ if (!mdp)
+ return -EINVAL;
+
+ for (i = 0; i < MDP_MM_SUBSYS_MAX; i++) {
+ const char *compat;
+ enum mdp_infra_id sub_id = id + i;
+
+ switch (id) {
+ case MDP_INFRA_MMSYS:
+ dev = &mdp->mm_subsys[i].mmsys;
+ break;
+ default:
+ dev_err(&mdp->pdev->dev, "Unknown infra id %d", id);
+ return -EINVAL;
+ }
+
+ /*
+ * Not every chip has multiple multimedia subsystems, so
+ * the config may be null.
+ */
+ compat = mdp->mdp_data->mdp_probe_infra[sub_id].compatible;
+ if (strlen(compat) == 0)
+ continue;
+
+ mm_pdev = __get_pdev_by_id(mdp->pdev, mm_pdev, sub_id);
+ if (WARN_ON(!mm_pdev))
+ return -ENODEV;
+
+ *dev = &mm_pdev->dev;
+ }
+
+ return 0;
+}
+
static int mdp_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -164,14 +210,11 @@ static int mdp_probe(struct platform_device *pdev)
mdp->pdev = pdev;
mdp->mdp_data = of_device_get_match_data(&pdev->dev);

- mm_pdev = __get_pdev_by_id(pdev, MDP_INFRA_MMSYS);
- if (!mm_pdev) {
- ret = -ENODEV;
+ ret = mdp_mm_subsys_deploy(mdp, MDP_INFRA_MMSYS);
+ if (ret)
goto err_destroy_device;
- }
- mdp->mdp_mmsys = &mm_pdev->dev;

- mm_pdev = __get_pdev_by_id(pdev, MDP_INFRA_MUTEX);
+ mm_pdev = __get_pdev_by_id(pdev, NULL, MDP_INFRA_MUTEX);
if (WARN_ON(!mm_pdev)) {
ret = -ENODEV;
goto err_destroy_device;
@@ -208,7 +251,7 @@ static int mdp_probe(struct platform_device *pdev)
goto err_destroy_job_wq;
}

- mm_pdev = __get_pdev_by_id(pdev, MDP_INFRA_SCP);
+ mm_pdev = __get_pdev_by_id(pdev, NULL, MDP_INFRA_SCP);
if (WARN_ON(!mm_pdev)) {
dev_err(&pdev->dev, "Could not get scp device\n");
ret = -ENODEV;
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
index 7e21d226ceb8..7a7cdd0ce968 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
@@ -19,12 +19,23 @@
#define MDP_PHANDLE_NAME "mediatek,mdp3"

enum mdp_infra_id {
+ /*
+ * Due to the sequential nature of function "mdp_mm_subsys_deploy",
+ * adding new enum. necessitates careful consideration.
+ */
MDP_INFRA_MMSYS,
+ MDP_INFRA_MMSYS2,
MDP_INFRA_MUTEX,
MDP_INFRA_SCP,
MDP_INFRA_MAX
};

+enum mdp_mm_subsys_id {
+ MDP_MM_SUBSYS_0,
+ MDP_MM_SUBSYS_1,
+ MDP_MM_SUBSYS_MAX,
+};
+
enum mdp_buffer_usage {
MDP_BUFFER_USAGE_HW_READ,
MDP_BUFFER_USAGE_MDP,
@@ -65,9 +76,13 @@ struct mtk_mdp_driver_data {
unsigned int pipe_info_len;
};

+struct mdp_mm_subsys {
+ struct device *mmsys;
+};
+
struct mdp_dev {
struct platform_device *pdev;
- struct device *mdp_mmsys;
+ struct mdp_mm_subsys mm_subsys[MDP_MM_SUBSYS_MAX];
struct mtk_mutex *mdp_mutex[MDP_PIPE_MAX];
struct mdp_comp *comp[MDP_MAX_COMP_COUNT];
const struct mtk_mdp_driver_data *mdp_data;
@@ -96,6 +111,7 @@ struct mdp_dev {

struct mdp_pipe_info {
enum mdp_pipe_id pipe_id;
+ enum mdp_mm_subsys_id sub_id;
u32 mutex_id;
};

--
2.18.0

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