[media] horus3a: Sony Horus3A DVB-S/S2 tuner driver

Add DVB-S/S2 frontend driver for Sony Horus3A (CXD2832AER) chip
Signed-off-by: Kozlov Sergey <serjk@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

MAINTAINERS

@@ -6601,6 +6601,15 @@ S:	Supported
 F:	Documentation/devicetree/bindings/media/renesas,vsp1.txt
 F:	drivers/media/platform/vsp1/
 
+MEDIA DRIVERS FOR HORUS3A
+M:	Sergey Kozlov <serjk@netup.ru>
+L:	linux-media@vger.kernel.org
+W:	http://linuxtv.org/
+W:	http://netup.tv/
+T:	git git://linuxtv.org/media_tree.git
+S:	Supported
+F:	drivers/media/dvb-frontends/horus3a*
+
 MEDIA INPUT INFRASTRUCTURE (V4L/DVB)
 M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
 P:	LinuxTV.org Project

drivers/media/dvb-frontends/Kconfig

@@ -816,6 +816,13 @@ config DVB_AF9033
 	depends on DVB_CORE && I2C
 	default m if !MEDIA_SUBDRV_AUTOSELECT
 
+config DVB_HORUS3A
+	tristate "Sony Horus3A tuner"
+	depends on DVB_CORE && I2C
+	default m if !MEDIA_SUBDRV_AUTOSELECT
+	help
+	  Say Y when you want to support this frontend.
+
 comment "Tools to develop new frontends"
 
 config DVB_DUMMY_FE

drivers/media/dvb-frontends/Makefile

@@ -118,3 +118,4 @@ obj-$(CONFIG_DVB_M88RS2000) += m88rs2000.o
 obj-$(CONFIG_DVB_AF9033) += af9033.o
 obj-$(CONFIG_DVB_AS102_FE) += as102_fe.o
 obj-$(CONFIG_DVB_TC90522) += tc90522.o
+obj-$(CONFIG_DVB_HORUS3A) += horus3a.o

drivers/media/dvb-frontends/horus3a.h

+/*
+ * horus3a.h
+ *
+ * Sony Horus3A DVB-S/S2 tuner driver
+ *
+ * Copyright 2012 Sony Corporation
+ * Copyright (C) 2014 NetUP Inc.
+ * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>
+ * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+  */
+
+#ifndef __DVB_HORUS3A_H__
+#define __DVB_HORUS3A_H__
+
+#include <linux/kconfig.h>
+#include <linux/dvb/frontend.h>
+#include <linux/i2c.h>
+
+/**
+ * struct horus3a_config - the configuration of Horus3A tuner driver
+ * @i2c_address:    I2C address of the tuner
+ * @xtal_freq_mhz:  Oscillator frequency, MHz
+ * @set_tuner_priv: Callback function private context
+ * @set_tuner_callback: Callback function that notifies the parent driver
+ *          which tuner is active now
+ */
+struct horus3a_config {
+	u8	i2c_address;
+	u8	xtal_freq_mhz;
+	void	*set_tuner_priv;
+	int	(*set_tuner_callback)(void *, int);
+};
+
+#if IS_REACHABLE(CONFIG_DVB_HORUS3A)
+extern struct dvb_frontend *horus3a_attach(struct dvb_frontend *fe,
+					const struct horus3a_config *config,
+					struct i2c_adapter *i2c);
+#else
+static inline struct dvb_frontend *horus3a_attach(
+					const struct cxd2820r_config *config,
+					struct i2c_adapter *i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+#endif
+
+#endif