diff --git a/include/media/v4l2-mediabus.h b/include/media/v4l2-mediabus.h
index 841e190aedd9048396c3147289e2ae78fe16d4b0..055e2abbc1dd6b0f6e8f9ad8d60549be94f52ec9 100644
--- a/include/media/v4l2-mediabus.h
+++ b/include/media/v4l2-mediabus.h
@@ -209,4 +209,46 @@ v4l2_fill_mbus_format_mplane(struct v4l2_mbus_framefmt *mbus_fmt,
 	mbus_fmt->xfer_func = pix_mp_fmt->xfer_func;
 }
 
+/**
+ * v4l2_fill_ext_pix_format_from_mbus - Ancillary routine that fills a &struct
+ *     v4l2_ext_pix_format fields from a &struct v4l2_mbus_framefmt.
+ *
+ * @pix_fmt:   pointer to &struct v4l2_ext_pix_format to be filled
+ * @mbus_fmt:  pointer to &struct v4l2_mbus_framefmt to be used as model
+ */
+static inline void
+v4l2_fill_ext_pix_format_from_mbus(struct v4l2_ext_pix_format *pix_fmt,
+				   const struct v4l2_mbus_framefmt *mbus_fmt)
+{
+	pix_fmt->width = mbus_fmt->width;
+	pix_fmt->height = mbus_fmt->height;
+	pix_fmt->field = mbus_fmt->field;
+	pix_fmt->colorspace = mbus_fmt->colorspace;
+	pix_fmt->ycbcr_enc = mbus_fmt->ycbcr_enc;
+	pix_fmt->quantization = mbus_fmt->quantization;
+	pix_fmt->xfer_func = mbus_fmt->xfer_func;
+}
+
+/**
+ * v4l2_fill_mbus_format_ext - Ancillary routine that fills a &struct
+ *     v4l2_mbus_framefmt from a &struct v4l2_ext_pix_format.
+ *
+ * @mbus_fmt:  pointer to &struct v4l2_mbus_framefmt to be filled
+ * @pix_fmt:   pointer to &struct v4l2_ext_pix_format to be used as model
+ * @code:      data format code (from &enum v4l2_mbus_pixelcode)
+ */
+static inline void
+v4l2_fill_mbus_format_ext(struct v4l2_mbus_framefmt *mbus_fmt,
+			  const struct v4l2_ext_pix_format *pix_fmt, u32 code)
+{
+	mbus_fmt->width = pix_fmt->width;
+	mbus_fmt->height = pix_fmt->height;
+	mbus_fmt->field = pix_fmt->field;
+	mbus_fmt->colorspace = pix_fmt->colorspace;
+	mbus_fmt->ycbcr_enc = pix_fmt->ycbcr_enc;
+	mbus_fmt->quantization = pix_fmt->quantization;
+	mbus_fmt->xfer_func = pix_fmt->xfer_func;
+	mbus_fmt->code = code;
+}
+
 #endif