[PATCH v6 5/6] media: mediatek: encoder: Add a new platform data member

Irui Wang
2026-04-23T07:34:26Z

Add a new platform data member to indicate each encoder IC, so that the
get chip name function by 'of_device_is_compatible' can be removed.

Signed-off-by: Irui Wang <irui.wang@mediatek.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
---
.../mediatek/vcodec/encoder/mtk_vcodec_enc.c | 22 ++-----------------
.../vcodec/encoder/mtk_vcodec_enc_drv.c | 6 +++++
.../vcodec/encoder/mtk_vcodec_enc_drv.h | 2 ++
3 files changed, 10 insertions(+), 20 deletions(-)

diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
index f0344888f2cf..b2f911746c01 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
@@ -198,33 +198,15 @@ static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
pdata->num_output_formats);
}

-static int mtk_vcodec_enc_get_chip_name(struct mtk_vcodec_enc_ctx *ctx)
-{
- struct device *dev = &ctx->dev->plat_dev->dev;
-
- if (of_device_is_compatible(dev->of_node, "mediatek,mt8173-vcodec-enc"))
- return 8173;
- else if (of_device_is_compatible(dev->of_node, "mediatek,mt8183-vcodec-enc"))
- return 8183;
- else if (of_device_is_compatible(dev->of_node, "mediatek,mt8192-vcodec-enc"))
- return 8192;
- else if (of_device_is_compatible(dev->of_node, "mediatek,mt8195-vcodec-enc"))
- return 8195;
- else if (of_device_is_compatible(dev->of_node, "mediatek,mt8188-vcodec-enc"))
- return 8188;
- else
- return 8173;
-}
-
static int vidioc_venc_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
struct mtk_vcodec_enc_ctx *ctx = file_to_enc_ctx(file);
+ const struct mtk_vcodec_enc_pdata *pdata = ctx->dev->venc_pdata;
struct device *dev = &ctx->dev->plat_dev->dev;
- int platform_name = mtk_vcodec_enc_get_chip_name(ctx);

strscpy(cap->driver, dev->driver->name, sizeof(cap->driver));
- snprintf(cap->card, sizeof(cap->card), "MT%d video encoder", platform_name);
+ snprintf(cap->card, sizeof(cap->card), "MT%d video encoder", pdata->venc_model_num);

return 0;
}
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c
index 2f6ee0cd15e3..7b644f55963b 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c
@@ -390,6 +390,7 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
}

static const struct mtk_vcodec_enc_pdata mt8173_avc_pdata = {
+ .venc_model_num = 8173,
.capture_formats = mtk_video_formats_capture_h264,
.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_h264),
.output_formats = mtk_video_formats_output,
@@ -400,6 +401,7 @@ static const struct mtk_vcodec_enc_pdata mt8173_avc_pdata = {
};

static const struct mtk_vcodec_enc_pdata mt8173_vp8_pdata = {
+ .venc_model_num = 8173,
.capture_formats = mtk_video_formats_capture_vp8,
.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_vp8),
.output_formats = mtk_video_formats_output,
@@ -410,6 +412,7 @@ static const struct mtk_vcodec_enc_pdata mt8173_vp8_pdata = {
};

static const struct mtk_vcodec_enc_pdata mt8183_pdata = {
+ .venc_model_num = 8183,
.uses_ext = true,
.capture_formats = mtk_video_formats_capture_h264,
.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_h264),
@@ -421,6 +424,7 @@ static const struct mtk_vcodec_enc_pdata mt8183_pdata = {
};

static const struct mtk_vcodec_enc_pdata mt8188_pdata = {
+ .venc_model_num = 8188,
.uses_ext = true,
.capture_formats = mtk_video_formats_capture_h264,
.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_h264),
@@ -433,6 +437,7 @@ static const struct mtk_vcodec_enc_pdata mt8188_pdata = {
};

static const struct mtk_vcodec_enc_pdata mt8192_pdata = {
+ .venc_model_num = 8192,
.uses_ext = true,
.capture_formats = mtk_video_formats_capture_h264,
.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_h264),
@@ -444,6 +449,7 @@ static const struct mtk_vcodec_enc_pdata mt8192_pdata = {
};

static const struct mtk_vcodec_enc_pdata mt8195_pdata = {
+ .venc_model_num = 8195,
.uses_ext = true,
.capture_formats = mtk_video_formats_capture_h264,
.num_capture_formats = ARRAY_SIZE(mtk_video_formats_capture_h264),
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h
index 0529564027c4..769fb5009964 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h
+++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h
@@ -21,6 +21,7 @@
/**
* struct mtk_vcodec_enc_pdata - compatible data for each IC
*
+ * @venc_model_num: encoder model number
* @uses_ext: whether the encoder uses the extended firmware messaging format
* @min_bitrate: minimum supported encoding bitrate
* @max_bitrate: maximum supported encoding bitrate
@@ -33,6 +34,7 @@
* @uses_common_fw_iface: whether the encoder uses common driver interface
*/
struct mtk_vcodec_enc_pdata {
+ u16 venc_model_num;
bool uses_ext;
u64 min_bitrate;
u64 max_bitrate;
--
2.45.2