linux-kernel - [PATCH v4 5/9] media: platform: mtk-mdp3: chip config split about resolution limitations

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20221124123859.24395-6-moudy.ho@mediatek.com>
Date:   Thu, 24 Nov 2022 20:38:55 +0800
From:   Moudy Ho <moudy.ho@...iatek.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>
CC:     Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        <linux-media@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        Moudy Ho <moudy.ho@...iatek.com>
Subject: [PATCH v4 5/9] media: platform: mtk-mdp3: chip config split about resolution limitations

Due to differences in hardware design, the supported max and min
resolutions and scaling capabilities will vary, and should be
moved and integrated into the chip configuration header file.

Signed-off-by: Moudy Ho <moudy.ho@...iatek.com>
---
 .../mediatek/mdp3/mt8183/mdp3-plat-mt8183.h   | 19 +++++++++++++++++
 .../platform/mediatek/mdp3/mtk-mdp3-core.c    |  1 +
 .../platform/mediatek/mdp3/mtk-mdp3-core.h    |  1 +
 .../platform/mediatek/mdp3/mtk-mdp3-m2m.c     |  5 +++--
 .../platform/mediatek/mdp3/mtk-mdp3-regs.c    | 21 +------------------
 5 files changed, 25 insertions(+), 22 deletions(-)

diff --git a/drivers/media/platform/mediatek/mdp3/mt8183/mdp3-plat-mt8183.h b/drivers/media/platform/mediatek/mdp3/mt8183/mdp3-plat-mt8183.h
index 1be9cc55b9b5..c541176780aa 100644
--- a/drivers/media/platform/mediatek/mdp3/mt8183/mdp3-plat-mt8183.h
+++ b/drivers/media/platform/mediatek/mdp3/mt8183/mdp3-plat-mt8183.h
@@ -380,4 +380,23 @@ static const struct mdp_format mt8183_formats[] = {
 	}
 };
 
+static const struct mdp_limit mt8183_mdp_def_limit = {
+	.out_limit = {
+		.wmin	= 16,
+		.hmin	= 16,
+		.wmax	= 8176,
+		.hmax	= 8176,
+	},
+	.cap_limit = {
+		.wmin	= 2,
+		.hmin	= 2,
+		.wmax	= 8176,
+		.hmax	= 8176,
+	},
+	.h_scale_up_max = 32,
+	.v_scale_up_max = 32,
+	.h_scale_down_max = 20,
+	.v_scale_down_max = 128,
+};
+
 #endif  /* __MDP3_PLAT_MT8183_H__ */
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
index ce18cbf70e96..4b02c135b631 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
@@ -26,6 +26,7 @@ static const struct mtk_mdp_driver_data mt8183_mdp_driver_data = {
 	.comp_data_len = ARRAY_SIZE(mt8183_mdp_comp_data),
 	.format = mt8183_formats,
 	.format_len = ARRAY_SIZE(mt8183_formats),
+	.def_limit = &mt8183_mdp_def_limit,
 };
 
 static const struct of_device_id mdp_of_ids[] = {
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
index 982438a9ab02..52f87e59ba9e 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
@@ -59,6 +59,7 @@ struct mtk_mdp_driver_data {
 	unsigned int comp_data_len;
 	const struct mdp_format *format;
 	unsigned int format_len;
+	const struct mdp_limit *def_limit;
 };
 
 struct mdp_dev {
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-m2m.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-m2m.c
index 7c14679ffd78..eba181fa50ad 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-m2m.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-m2m.c
@@ -558,6 +558,7 @@ static int mdp_m2m_open(struct file *file)
 	struct device *dev = &mdp->pdev->dev;
 	int ret;
 	struct v4l2_format default_format = {};
+	const struct mdp_limit *limit = mdp->mdp_data->def_limit;
 
 	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
 	if (!ctx)
@@ -601,8 +602,8 @@ static int mdp_m2m_open(struct file *file)
 
 	/* Default format */
 	default_format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
-	default_format.fmt.pix_mp.width = 32;
-	default_format.fmt.pix_mp.height = 32;
+	default_format.fmt.pix_mp.width = limit->out_limit.wmin;
+	default_format.fmt.pix_mp.height = limit->out_limit.hmin;
 	default_format.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_YUV420M;
 	mdp_m2m_s_fmt_mplane(file, &ctx->fh, &default_format);
 	default_format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-regs.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-regs.c
index cd6afbf53797..bb833ae27531 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-regs.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-regs.c
@@ -11,25 +11,6 @@
 #include "mtk-mdp3-regs.h"
 #include "mtk-mdp3-m2m.h"
 
-static const struct mdp_limit mdp_def_limit = {
-	.out_limit = {
-		.wmin	= 16,
-		.hmin	= 16,
-		.wmax	= 8176,
-		.hmax	= 8176,
-	},
-	.cap_limit = {
-		.wmin	= 2,
-		.hmin	= 2,
-		.wmax	= 8176,
-		.hmax	= 8176,
-	},
-	.h_scale_up_max = 32,
-	.v_scale_up_max = 32,
-	.h_scale_down_max = 20,
-	.v_scale_down_max = 128,
-};
-
 static const struct mdp_format *mdp_find_fmt(const struct mtk_mdp_driver_data *mdp_data,
 					     u32 pixelformat, u32 type)
 {
@@ -485,7 +466,7 @@ int mdp_frameparam_init(struct mdp_dev *mdp, struct mdp_frameparam *param)
 		return -EINVAL;
 
 	INIT_LIST_HEAD(&param->list);
-	param->limit = &mdp_def_limit;
+	param->limit = mdp->mdp_data->def_limit;
 	param->type = MDP_STREAM_TYPE_BITBLT;
 
 	frame = &param->output;
-- 
2.18.0