media: mediatek: vcodec: Fix decoder 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>

diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c
index 61412d0eeb339cbb25d98d15aa71972e44414494..957e0f09468fa6235671f9b8d13ea4436cc11ade 100644 (file)
--- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c
+++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c
@@ -223,11 +223,32 @@ static int vidioc_vdec_dqbuf(struct file *file, void *priv,
        return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
 }
 
+static int mtk_vcodec_dec_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-dec"))
+               return 8173;
+       else if (of_device_is_compatible(dev->of_node, "mediatek,mt8183-vcodec-dec"))
+               return 8183;
+       else if (of_device_is_compatible(dev->of_node, "mediatek,mt8192-vcodec-dec"))
+               return 8192;
+       else if (of_device_is_compatible(dev->of_node, "mediatek,mt8195-vcodec-dec"))
+               return 8195;
+       else if (of_device_is_compatible(dev->of_node, "mediatek,mt8186-vcodec-dec"))
+               return 8186;
+       else
+               return 8173;
+}
+
 static int vidioc_vdec_querycap(struct file *file, void *priv,
                                struct v4l2_capability *cap)
 {
+       int platform_name = mtk_vcodec_dec_get_chip_name(priv);
+
        strscpy(cap->driver, MTK_VCODEC_DEC_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-dec", platform_name);
        strscpy(cap->card, MTK_PLATFORM_STR, sizeof(cap->card));
 
        return 0;