v4.19.13 snapshot.
diff --git a/drivers/media/dvb-frontends/drxd.h b/drivers/media/dvb-frontends/drxd.h
new file mode 100644
index 0000000..1d4b894
--- /dev/null
+++ b/drivers/media/dvb-frontends/drxd.h
@@ -0,0 +1,67 @@
+/*
+ * drxd.h: DRXD DVB-T demodulator driver
+ *
+ * Copyright (C) 2005-2007 Micronas
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 only, as published by the Free Software Foundation.
+ *
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * To obtain the license, point your browser to
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#ifndef _DRXD_H_
+#define _DRXD_H_
+
+#include <linux/types.h>
+#include <linux/i2c.h>
+
+struct drxd_config {
+ u8 index;
+
+ u8 pll_address;
+ u8 pll_type;
+#define DRXD_PLL_NONE 0
+#define DRXD_PLL_DTT7520X 1
+#define DRXD_PLL_MT3X0823 2
+
+ u32 clock;
+ u8 insert_rs_byte;
+
+ u8 demod_address;
+ u8 demoda_address;
+ u8 demod_revision;
+
+ /* If the tuner is not behind an i2c gate, be sure to flip this bit
+ or else the i2c bus could get wedged */
+ u8 disable_i2c_gate_ctrl;
+
+ u32 IF;
+ s16(*osc_deviation) (void *priv, s16 dev, int flag);
+};
+
+#if IS_REACHABLE(CONFIG_DVB_DRXD)
+extern
+struct dvb_frontend *drxd_attach(const struct drxd_config *config,
+ void *priv, struct i2c_adapter *i2c,
+ struct device *dev);
+#else
+static inline
+struct dvb_frontend *drxd_attach(const struct drxd_config *config,
+ void *priv, struct i2c_adapter *i2c,
+ struct device *dev)
+{
+ printk(KERN_INFO "%s: not probed - driver disabled by Kconfig\n",
+ __func__);
+ return NULL;
+}
+#endif
+
+#endif