diff options
| -rw-r--r-- | drivers/media/dvb-frontends/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/media/dvb-frontends/rtl2832.c | 26 | ||||
| -rw-r--r-- | drivers/media/dvb-frontends/rtl2832.h | 13 | ||||
| -rw-r--r-- | drivers/media/dvb-frontends/rtl2832_priv.h | 2 |
4 files changed, 42 insertions, 1 deletions
diff --git a/drivers/media/dvb-frontends/Kconfig b/drivers/media/dvb-frontends/Kconfig index 611c794856a9..025fc5496bfc 100644 --- a/drivers/media/dvb-frontends/Kconfig +++ b/drivers/media/dvb-frontends/Kconfig @@ -441,7 +441,7 @@ config DVB_RTL2830 config DVB_RTL2832 tristate "Realtek RTL2832 DVB-T" - depends on DVB_CORE && I2C + depends on DVB_CORE && I2C && I2C_MUX default m if !MEDIA_SUBDRV_AUTOSELECT help Say Y when you want to support this frontend. diff --git a/drivers/media/dvb-frontends/rtl2832.c b/drivers/media/dvb-frontends/rtl2832.c index 00e63b9f104d..dc46cf0841e0 100644 --- a/drivers/media/dvb-frontends/rtl2832.c +++ b/drivers/media/dvb-frontends/rtl2832.c @@ -891,9 +891,29 @@ static void rtl2832_release(struct dvb_frontend *fe) struct rtl2832_priv *priv = fe->demodulator_priv; dev_dbg(&priv->i2c->dev, "%s:\n", __func__); + i2c_del_mux_adapter(priv->i2c_adapter); kfree(priv); } +static int rtl2832_select(struct i2c_adapter *adap, void *mux_priv, u32 chan) +{ + struct rtl2832_priv *priv = mux_priv; + return rtl2832_i2c_gate_ctrl(&priv->fe, 1); +} + +static int rtl2832_deselect(struct i2c_adapter *adap, void *mux_priv, u32 chan) +{ + struct rtl2832_priv *priv = mux_priv; + return rtl2832_i2c_gate_ctrl(&priv->fe, 0); +} + +struct i2c_adapter *rtl2832_get_i2c_adapter(struct dvb_frontend *fe) +{ + struct rtl2832_priv *priv = fe->demodulator_priv; + return priv->i2c_adapter; +} +EXPORT_SYMBOL(rtl2832_get_i2c_adapter); + struct dvb_frontend *rtl2832_attach(const struct rtl2832_config *cfg, struct i2c_adapter *i2c) { @@ -918,6 +938,12 @@ struct dvb_frontend *rtl2832_attach(const struct rtl2832_config *cfg, if (ret) goto err; + /* create muxed i2c adapter */ + priv->i2c_adapter = i2c_add_mux_adapter(i2c, &i2c->dev, priv, 0, 0, 0, + rtl2832_select, rtl2832_deselect); + if (priv->i2c_adapter == NULL) + goto err; + /* create dvb_frontend */ memcpy(&priv->fe.ops, &rtl2832_ops, sizeof(struct dvb_frontend_ops)); priv->fe.demodulator_priv = priv; diff --git a/drivers/media/dvb-frontends/rtl2832.h b/drivers/media/dvb-frontends/rtl2832.h index fa4e5f651aa7..a9202d72a8aa 100644 --- a/drivers/media/dvb-frontends/rtl2832.h +++ b/drivers/media/dvb-frontends/rtl2832.h @@ -55,7 +55,13 @@ struct dvb_frontend *rtl2832_attach( const struct rtl2832_config *cfg, struct i2c_adapter *i2c ); + +extern struct i2c_adapter *rtl2832_get_i2c_adapter( + struct dvb_frontend *fe +); + #else + static inline struct dvb_frontend *rtl2832_attach( const struct rtl2832_config *config, struct i2c_adapter *i2c @@ -64,6 +70,13 @@ static inline struct dvb_frontend *rtl2832_attach( pr_warn("%s: driver disabled by Kconfig\n", __func__); return NULL; } + +static inline struct i2c_adapter *rtl2832_get_i2c_adapter( + struct dvb_frontend *fe +) +{ + return NULL; +} #endif diff --git a/drivers/media/dvb-frontends/rtl2832_priv.h b/drivers/media/dvb-frontends/rtl2832_priv.h index 4c845af81ee9..ec26c9286756 100644 --- a/drivers/media/dvb-frontends/rtl2832_priv.h +++ b/drivers/media/dvb-frontends/rtl2832_priv.h @@ -23,9 +23,11 @@ #include "dvb_frontend.h" #include "rtl2832.h" +#include <linux/i2c-mux.h> struct rtl2832_priv { struct i2c_adapter *i2c; + struct i2c_adapter *i2c_adapter; struct dvb_frontend fe; struct rtl2832_config cfg; |