linux-kernel - [PATCH v6 08/13] media: platform: mtk-mdp3: add support for blending multiple components

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Date:   Fri, 22 Sep 2023 15:41:40 +0800
From:   Moudy Ho <moudy.ho@...iatek.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Ping-Hsun Wu <ping-hsun.wu@...iatek.com>,
        daoyuan huang <daoyuan.huang@...iatek.com>,
        "Hans Verkuil" <hverkuil-cisco@...all.nl>
CC:     <linux-kernel@...r.kernel.org>, <linux-media@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        Moudy Ho <moudy.ho@...iatek.com>
Subject: [PATCH v6 08/13] media: platform: mtk-mdp3: add support for blending multiple components

Certain chips can combine several components to form complex virtual
units with advanced functions.
These components require simultaneous configuration of their MODs and
clocks.

Signed-off-by: Moudy Ho <moudy.ho@...iatek.com>
---
 .../platform/mediatek/mdp3/mtk-mdp3-cmdq.c    | 10 ++++++-
 .../platform/mediatek/mdp3/mtk-mdp3-comp.c    | 29 +++++++++++++++++--
 .../platform/mediatek/mdp3/mtk-mdp3-comp.h    |  7 +++++
 3 files changed, 43 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c
index 708c3f39c451..69eb85c04047 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c
@@ -110,17 +110,25 @@ static int mdp_path_subfrm_require(const struct mdp_path *path,
 	/* Set mutex mod */
 	for (index = 0; index < num_comp; index++) {
 		s32 inner_id = MDP_COMP_NONE;
+		const u32 *mutex_idx;
+		const struct mdp_comp_blend *b;
 
 		if (CFG_CHECK(MT8183, p_id))
 			inner_id = CFG_GET(MT8183, path->config, components[index].type);
 		if (mdp_cfg_comp_is_dummy(path->mdp_dev, inner_id))
 			continue;
+
 		ctx = &path->comps[index];
 		if (is_output_disabled(p_id, ctx->param, count))
 			continue;
+
+		mutex_idx = data->mdp_mutex_table_idx;
 		id = ctx->comp->public_id;
-		mtk_mutex_write_mod(mutex, data->mdp_mutex_table_idx[id], false);
+		mtk_mutex_write_mod(mutex, mutex_idx[id], false);
 
+		b = &data->comp_data[id].blend;
+		if (b && b->aid_mod)
+			mtk_mutex_write_mod(mutex, mutex_idx[b->b_id], false);
 	}
 
 	mtk_mutex_write_sof(mutex, MUTEX_SOF_IDX_SINGLE_MODE);
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c
index 2bf4a6b391b7..b942cc3a1865 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c
@@ -864,12 +864,26 @@ int mdp_comp_clocks_on(struct device *dev, struct mdp_comp *comps, int num)
 	int i, ret;
 
 	for (i = 0; i < num; i++) {
+		struct mdp_dev *m = comps[i].mdp_dev;
+		enum mtk_mdp_comp_id id;
+		const struct mdp_comp_blend *b;
+
 		/* Bypass the dummy component*/
-		if (!comps[i].mdp_dev)
+		if (!m)
 			continue;
+
 		ret = mdp_comp_clock_on(dev, &comps[i]);
 		if (ret)
 			return ret;
+
+		id = comps[i].public_id;
+		b = &m->mdp_data->comp_data[id].blend;
+
+		if (b && b->aid_clk) {
+			ret = mdp_comp_clock_on(dev, m->comp[b->b_id]);
+			if (ret)
+				return ret;
+		}
 	}
 
 	return 0;
@@ -880,10 +894,21 @@ void mdp_comp_clocks_off(struct device *dev, struct mdp_comp *comps, int num)
 	int i;
 
 	for (i = 0; i < num; i++) {
+		struct mdp_dev *m = comps[i].mdp_dev;
+		enum mtk_mdp_comp_id id;
+		const struct mdp_comp_blend *b;
+
 		/* Bypass the dummy component*/
-		if (!comps[i].mdp_dev)
+		if (!m)
 			continue;
+
 		mdp_comp_clock_off(dev, &comps[i]);
+
+		id = comps[i].public_id;
+		b = &m->mdp_data->comp_data[id].blend;
+
+		if (b && b->aid_clk)
+			mdp_comp_clock_off(dev, m->comp[b->b_id]);
 	}
 }
 
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.h b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.h
index e6cbc6ab6bae..3e5d2da1c807 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.h
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.h
@@ -201,9 +201,16 @@ struct mdp_comp_info {
 	u32 dts_reg_ofst;
 };
 
+struct mdp_comp_blend {
+	enum mtk_mdp_comp_id b_id;
+	bool aid_mod;
+	bool aid_clk;
+};
+
 struct mdp_comp_data {
 	struct mdp_comp_match match;
 	struct mdp_comp_info info;
+	struct mdp_comp_blend blend;
 };
 
 struct mdp_comp_ops;
-- 
2.18.0