[media] Add support Sony CXD2854ER demodulator

CXD2854ER is identical to CXD2841ER except ISDB-T/S added.
New method 'cxd2841er_attach_i' is added
xtal frequency now configurable. Available options:
20.5MHz, 24MHz, 41MHz
Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/dvb-frontends/cxd2841er.h

@@ -25,8 +25,15 @@
 #include <linux/kconfig.h>
 #include <linux/dvb/frontend.h>
 
+enum cxd2841er_xtal {
+	SONY_XTAL_20500, /* 20.5 MHz */
+	SONY_XTAL_24000, /* 24 MHz */
+	SONY_XTAL_41000 /* 41 MHz */
+};
+
 struct cxd2841er_config {
 	u8	i2c_addr;
+	enum cxd2841er_xtal	xtal;
 };
 
 #if IS_REACHABLE(CONFIG_DVB_CXD2841ER)
@@ -38,28 +45,38 @@ extern struct dvb_frontend *cxd2841er_attach_t(struct cxd2841er_config *cfg,
 
 extern struct dvb_frontend *cxd2841er_attach_c(struct cxd2841er_config *cfg,
 					       struct i2c_adapter *i2c);
+extern struct dvb_frontend *cxd2841er_attach_i(struct cxd2841er_config *cfg,
+		struct i2c_adapter *i2c);
 #else
 static inline struct dvb_frontend *cxd2841er_attach_s(
 					struct cxd2841er_config *cfg,
 					struct i2c_adapter *i2c)
 {
-	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	pr_warn("%s: driver disabled by Kconfig\n", __func__);
 	return NULL;
 }
 
 static inline struct dvb_frontend *cxd2841er_attach_t(
 		struct cxd2841er_config *cfg, struct i2c_adapter *i2c)
 {
-	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	pr_warn("%s: driver disabled by Kconfig\n", __func__);
 	return NULL;
 }
 
 static inline struct dvb_frontend *cxd2841er_attach_c(
 		struct cxd2841er_config *cfg, struct i2c_adapter *i2c)
 {
-	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	pr_warn("%s: driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+
+static inline struct dvb_frontend *cxd2841er_attach_i(
+		struct cxd2841er_config *cfg, struct i2c_adapter *i2c)
+{
+	pr_warn("%s: driver disabled by Kconfig\n", __func__);
 	return NULL;
 }
+
 #endif
 
 #endif

drivers/media/dvb-frontends/cxd2841er_priv.h

@@ -26,6 +26,7 @@
 #define I2C_SLVT			1
 
 #define CXD2841ER_CHIP_ID		0xa7
+#define CXD2854ER_CHIP_ID		0xc1
 
 #define CXD2841ER_DVBS_POLLING_INVL	10