[media] rtl2832: convert to regmap API

Use regmap to cover register access routines.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/dvb-frontends/Kconfig

@@ -452,6 +452,7 @@ config DVB_RTL2830
 config DVB_RTL2832
 	tristate "Realtek RTL2832 DVB-T"
 	depends on DVB_CORE && I2C && I2C_MUX
+	select REGMAP
 	default m if !MEDIA_SUBDRV_AUTOSELECT
 	help
 	  Say Y when you want to support this frontend.

drivers/media/dvb-frontends/rtl2832_priv.h

@@ -24,18 +24,18 @@
 #include "dvb_frontend.h"
 #include "rtl2832.h"
 #include <linux/i2c-mux.h>
+#include <linux/regmap.h>
 
 struct rtl2832_dev {
 	struct rtl2832_platform_data *pdata;
 	struct i2c_client *client;
+	struct regmap *regmap;
 	struct i2c_adapter *i2c_adapter;
 	struct i2c_adapter *i2c_adapter_tuner;
 	struct dvb_frontend fe;
 
 	bool i2c_gate_state;
 	bool sleeping;
-
-	u8 page; /* active register page */
 	struct delayed_work i2c_gate_work;
 };