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From:   Moudy Ho <moudy.ho@mediatek.com>
To:     Mauro Carvalho Chehab <mchehab@kernel.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>,
        Ping-Hsun Wu <ping-hsun.wu@mediatek.com>,
        daoyuan huang <daoyuan.huang@mediatek.com>,
        "Hans Verkuil" <hverkuil-cisco@xs4all.nl>
CC:     <linux-kernel@vger.kernel.org>, <linux-media@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-mediatek@lists.infradead.org>,
        Moudy Ho <moudy.ho@mediatek.com>
Subject: [PATCH v6 08/13] media: platform: mtk-mdp3: add support for blending multiple components
Date:   Fri, 22 Sep 2023 15:41:40 +0800
Message-ID: <20230922074145.11977-9-moudy.ho@mediatek.com>
In-Reply-To: <20230922074145.11977-1-moudy.ho@mediatek.com>
References: <20230922074145.11977-1-moudy.ho@mediatek.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

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@mediatek.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