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media: ddbridge: use common DVB I2C client handling helpers
Instead of keeping duplicated I2C client handling construct, make use of the newly introduced dvb_module_*() helpers. This not only keeps things way cleaner and removes the need for duplicated I2C client attach code, but even allows to get rid of some variables that won't help in making things look cleaner anymore. The check on a valid ptr on port->en isn't really needed since the cxd2099 driver will set it at a time where it is going to return successfully from probing. Signed-off-by: Daniel Scheller <d.scheller@gmx.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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parent
a31b86b176
commit
c966453b13
2 changed files with 14 additions and 55 deletions
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@ -324,34 +324,20 @@ static int ci_cxd2099_attach(struct ddb_port *port, u32 bitrate)
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{
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struct cxd2099_cfg cxd_cfg = cxd_cfgtmpl;
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struct i2c_client *client;
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struct i2c_board_info board_info = {
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.type = "cxd2099",
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.addr = 0x40,
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.platform_data = &cxd_cfg,
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};
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cxd_cfg.bitrate = bitrate;
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cxd_cfg.en = &port->en;
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request_module(board_info.type);
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client = i2c_new_device(&port->i2c->adap, &board_info);
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if (!client || !client->dev.driver)
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goto err_ret;
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if (!try_module_get(client->dev.driver->owner))
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goto err_i2c;
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if (!port->en)
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goto err_i2c;
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client = dvb_module_probe("cxd2099", NULL, &port->i2c->adap,
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0x40, &cxd_cfg);
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if (!client)
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goto err;
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port->dvb[0].i2c_client[0] = client;
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port->en_freedata = 0;
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return 0;
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err_i2c:
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i2c_unregister_device(client);
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err_ret:
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err:
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dev_err(port->dev->dev, "CXD2099AR attach failed\n");
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return -ENODEV;
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}
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@ -385,18 +371,13 @@ int ddb_ci_attach(struct ddb_port *port, u32 bitrate)
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void ddb_ci_detach(struct ddb_port *port)
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{
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struct i2c_client *client;
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if (port->dvb[0].dev)
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dvb_unregister_device(port->dvb[0].dev);
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if (port->en) {
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dvb_ca_en50221_release(port->en);
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client = port->dvb[0].i2c_client[0];
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if (client) {
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module_put(client->dev.driver->owner);
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i2c_unregister_device(client);
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}
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dvb_module_release(port->dvb[0].i2c_client[0]);
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port->dvb[0].i2c_client[0] = NULL;
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/* free alloc'ed memory if needed */
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if (port->en_freedata)
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@ -999,37 +999,21 @@ static int tuner_attach_tda18212(struct ddb_input *input, u32 porttype)
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.if_dvbt2_8 = 4000,
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.if_dvbc = 5000,
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};
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struct i2c_board_info board_info = {
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.type = "tda18212",
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.platform_data = &config,
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};
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if (input->nr & 1)
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board_info.addr = 0x63;
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else
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board_info.addr = 0x60;
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u8 addr = (input->nr & 1) ? 0x63 : 0x60;
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/* due to a hardware quirk with the I2C gate on the stv0367+tda18212
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* combo, the tda18212 must be probed by reading it's id _twice_ when
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* cold started, or it very likely will fail.
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*/
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if (porttype == DDB_TUNER_DVBCT_ST)
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tuner_tda18212_ping(input, board_info.addr);
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tuner_tda18212_ping(input, addr);
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request_module(board_info.type);
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/* perform tuner init/attach */
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client = i2c_new_device(adapter, &board_info);
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if (!client || !client->dev.driver)
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/* perform tuner probe/init/attach */
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client = dvb_module_probe("tda18212", NULL, adapter, addr, &config);
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if (!client)
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goto err;
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if (!try_module_get(client->dev.driver->owner)) {
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i2c_unregister_device(client);
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goto err;
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}
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dvb->i2c_client[0] = client;
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return 0;
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err:
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dev_err(dev, "TDA18212 tuner not found. Device is not fully operational.\n");
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@ -1253,7 +1237,6 @@ static void dvb_input_detach(struct ddb_input *input)
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{
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struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
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struct dvb_demux *dvbdemux = &dvb->demux;
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struct i2c_client *client;
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switch (dvb->attached) {
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case 0x31:
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@ -1263,13 +1246,8 @@ static void dvb_input_detach(struct ddb_input *input)
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dvb_unregister_frontend(dvb->fe);
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/* fallthrough */
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case 0x30:
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client = dvb->i2c_client[0];
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if (client) {
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module_put(client->dev.driver->owner);
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i2c_unregister_device(client);
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dvb->i2c_client[0] = NULL;
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client = NULL;
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}
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dvb_module_release(dvb->i2c_client[0]);
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dvb->i2c_client[0] = NULL;
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if (dvb->fe2)
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dvb_frontend_detach(dvb->fe2);
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