1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/s921.h b/drivers/media/dvb-frontends/s921.h
new file mode 100644
index 0000000000..436fc79214
--- /dev/null
+++ b/drivers/media/dvb-frontends/s921.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *   Sharp s921 driver
+ *
+ *   Copyright (C) 2009 Mauro Carvalho Chehab
+ *   Copyright (C) 2009 Douglas Landgraf <dougsland@redhat.com>
+ */
+
+#ifndef S921_H
+#define S921_H
+
+#include <linux/dvb/frontend.h>
+
+struct s921_config {
+	/* the demodulator's i2c address */
+	u8 demod_address;
+};
+
+#if IS_REACHABLE(CONFIG_DVB_S921)
+extern struct dvb_frontend *s921_attach(const struct s921_config *config,
+					   struct i2c_adapter *i2c);
+extern struct i2c_adapter *s921_get_tuner_i2c_adapter(struct dvb_frontend *);
+#else
+static inline struct dvb_frontend *s921_attach(
+	const struct s921_config *config, struct i2c_adapter *i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+static inline struct i2c_adapter *
+	s921_get_tuner_i2c_adapter(struct dvb_frontend *fe)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+#endif
+
+#endif /* S921_H */