media: mediatek: vcodec: Fix encoder v4l2 bus_info not correctly

Fix v4l2 capability bus_info value with correct chip name according to
compatible.
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc.c

@@ -204,11 +204,30 @@ static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
 			       pdata->num_output_formats);
 }
 
+static int mtk_vcodec_enc_get_chip_name(void *priv)
+{
+	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
+	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
+		return 8173;
+}
+
 static int vidioc_venc_querycap(struct file *file, void *priv,
 				struct v4l2_capability *cap)
 {
+	int platform_name = mtk_vcodec_enc_get_chip_name(priv);
+
 	strscpy(cap->driver, MTK_VCODEC_ENC_NAME, sizeof(cap->driver));
-	strscpy(cap->bus_info, MTK_PLATFORM_STR, sizeof(cap->bus_info));
+	snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:mt%d-enc", platform_name);
 	strscpy(cap->card, MTK_PLATFORM_STR, sizeof(cap->card));
 
 	return 0;