[media] si2168: carry pointer to client instead of state

Carry struct i2c_client pointer inside struct dvb_frontend private
pointer. This driver is I2C driver, which is represented as a
struct i2c_client, so better to carry this top level structure for
each routine in order to unify things. This allows further
simplification.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/dvb-frontends/si2168.c b/drivers/media/dvb-frontends/si2168.c
index 02009f8..d0dfc73 100644 (file)
--- a/drivers/media/dvb-frontends/si2168.c
+++ b/drivers/media/dvb-frontends/si2168.c
@@ -19,8 +19,9 @@
 static const struct dvb_frontend_ops si2168_ops;
 
 /* execute firmware command */
-static int si2168_cmd_execute(struct si2168_dev *dev, struct si2168_cmd *cmd)
+static int si2168_cmd_execute(struct i2c_client *client, struct si2168_cmd *cmd)
 {
+       struct si2168_dev *dev = i2c_get_clientdata(client);
        int ret;
        unsigned long timeout;
 
@@ -80,7 +81,8 @@ err:
 
 static int si2168_read_status(struct dvb_frontend *fe, fe_status_t *status)
 {
-       struct si2168_dev *dev = fe->demodulator_priv;
+       struct i2c_client *client = fe->demodulator_priv;
+       struct si2168_dev *dev = i2c_get_clientdata(client);
        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
        int ret;
        struct si2168_cmd cmd;
@@ -113,7 +115,7 @@ static int si2168_read_status(struct dvb_frontend *fe, fe_status_t *status)
                goto err;
        }
 
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
@@ -160,7 +162,8 @@ err:
 
 static int si2168_set_frontend(struct dvb_frontend *fe)
 {
-       struct si2168_dev *dev = fe->demodulator_priv;
+       struct i2c_client *client = fe->demodulator_priv;
+       struct si2168_dev *dev = i2c_get_clientdata(client);
        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
        int ret;
        struct si2168_cmd cmd;
@@ -217,7 +220,7 @@ static int si2168_set_frontend(struct dvb_frontend *fe)
        memcpy(cmd.args, "\x88\x02\x02\x02\x02", 5);
        cmd.wlen = 5;
        cmd.rlen = 5;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
@@ -230,7 +233,7 @@ static int si2168_set_frontend(struct dvb_frontend *fe)
                memcpy(cmd.args, "\x89\x21\x06\x11\x89\x20", 6);
        cmd.wlen = 6;
        cmd.rlen = 3;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
@@ -241,7 +244,7 @@ static int si2168_set_frontend(struct dvb_frontend *fe)
                cmd.args[2] = c->stream_id == NO_STREAM_ID_FILTER ? 0 : 1;
                cmd.wlen = 3;
                cmd.rlen = 1;
-               ret = si2168_cmd_execute(dev, &cmd);
+               ret = si2168_cmd_execute(client, &cmd);
                if (ret)
                        goto err;
        }
@@ -249,35 +252,35 @@ static int si2168_set_frontend(struct dvb_frontend *fe)
        memcpy(cmd.args, "\x51\x03", 2);
        cmd.wlen = 2;
        cmd.rlen = 12;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
        memcpy(cmd.args, "\x12\x08\x04", 3);
        cmd.wlen = 3;
        cmd.rlen = 3;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
        memcpy(cmd.args, "\x14\x00\x0c\x10\x12\x00", 6);
        cmd.wlen = 6;
        cmd.rlen = 4;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
        memcpy(cmd.args, "\x14\x00\x06\x10\x24\x00", 6);
        cmd.wlen = 6;
        cmd.rlen = 4;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
        memcpy(cmd.args, "\x14\x00\x07\x10\x00\x24", 6);
        cmd.wlen = 6;
        cmd.rlen = 4;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
@@ -285,7 +288,7 @@ static int si2168_set_frontend(struct dvb_frontend *fe)
        cmd.args[4] = delivery_system | bandwidth;
        cmd.wlen = 6;
        cmd.rlen = 4;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
@@ -296,7 +299,7 @@ static int si2168_set_frontend(struct dvb_frontend *fe)
                cmd.args[5] = ((c->symbol_rate / 1000) >> 8) & 0xff;
                cmd.wlen = 6;
                cmd.rlen = 4;
-               ret = si2168_cmd_execute(dev, &cmd);
+               ret = si2168_cmd_execute(client, &cmd);
                if (ret)
                        goto err;
        }
@@ -304,7 +307,7 @@ static int si2168_set_frontend(struct dvb_frontend *fe)
        memcpy(cmd.args, "\x14\x00\x0f\x10\x10\x00", 6);
        cmd.wlen = 6;
        cmd.rlen = 4;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
@@ -312,7 +315,7 @@ static int si2168_set_frontend(struct dvb_frontend *fe)
        cmd.args[5] |= dev->ts_clock_inv ? 0x00 : 0x10;
        cmd.wlen = 6;
        cmd.rlen = 4;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
@@ -320,28 +323,28 @@ static int si2168_set_frontend(struct dvb_frontend *fe)
        cmd.args[5] |= dev->ts_clock_inv ? 0x00 : 0x10;
        cmd.wlen = 6;
        cmd.rlen = 4;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
        memcpy(cmd.args, "\x14\x00\x01\x12\x00\x00", 6);
        cmd.wlen = 6;
        cmd.rlen = 4;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
        memcpy(cmd.args, "\x14\x00\x01\x03\x0c\x00", 6);
        cmd.wlen = 6;
        cmd.rlen = 4;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
        memcpy(cmd.args, "\x85", 1);
        cmd.wlen = 1;
        cmd.rlen = 1;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
@@ -355,7 +358,8 @@ err:
 
 static int si2168_init(struct dvb_frontend *fe)
 {
-       struct si2168_dev *dev = fe->demodulator_priv;
+       struct i2c_client *client = fe->demodulator_priv;
+       struct si2168_dev *dev = i2c_get_clientdata(client);
        int ret, len, remaining;
        const struct firmware *fw = NULL;
        u8 *fw_file;
@@ -369,7 +373,7 @@ static int si2168_init(struct dvb_frontend *fe)
        memcpy(cmd.args, "\xc0\x12\x00\x0c\x00\x0d\x16\x00\x00\x00\x00\x00\x00", 13);
        cmd.wlen = 13;
        cmd.rlen = 0;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
@@ -378,14 +382,14 @@ static int si2168_init(struct dvb_frontend *fe)
                memcpy(cmd.args, "\xc0\x06\x08\x0f\x00\x20\x21\x01", 8);
                cmd.wlen = 8;
                cmd.rlen = 1;
-               ret = si2168_cmd_execute(dev, &cmd);
+               ret = si2168_cmd_execute(client, &cmd);
                if (ret)
                        goto err;
 
                memcpy(cmd.args, "\x85", 1);
                cmd.wlen = 1;
                cmd.rlen = 1;
-               ret = si2168_cmd_execute(dev, &cmd);
+               ret = si2168_cmd_execute(client, &cmd);
                if (ret)
                        goto err;
 
@@ -396,7 +400,7 @@ static int si2168_init(struct dvb_frontend *fe)
        memcpy(cmd.args, "\xc0\x06\x01\x0f\x00\x20\x20\x01", 8);
        cmd.wlen = 8;
        cmd.rlen = 1;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
@@ -404,7 +408,7 @@ static int si2168_init(struct dvb_frontend *fe)
        memcpy(cmd.args, "\x02", 1);
        cmd.wlen = 1;
        cmd.rlen = 13;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
@@ -469,7 +473,7 @@ static int si2168_init(struct dvb_frontend *fe)
                        memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len);
                        cmd.wlen = len;
                        cmd.rlen = 1;
-                       ret = si2168_cmd_execute(dev, &cmd);
+                       ret = si2168_cmd_execute(client, &cmd);
                        if (ret) {
                                dev_err(&dev->client->dev,
                                                "firmware download failed=%d\n",
@@ -487,7 +491,7 @@ static int si2168_init(struct dvb_frontend *fe)
                        memcpy(cmd.args, &fw->data[fw->size - remaining], len);
                        cmd.wlen = len;
                        cmd.rlen = 1;
-                       ret = si2168_cmd_execute(dev, &cmd);
+                       ret = si2168_cmd_execute(client, &cmd);
                        if (ret) {
                                dev_err(&dev->client->dev,
                                                "firmware download failed=%d\n",
@@ -503,7 +507,7 @@ static int si2168_init(struct dvb_frontend *fe)
        memcpy(cmd.args, "\x01\x01", 2);
        cmd.wlen = 2;
        cmd.rlen = 1;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
@@ -511,7 +515,7 @@ static int si2168_init(struct dvb_frontend *fe)
        memcpy(cmd.args, "\x11", 1);
        cmd.wlen = 1;
        cmd.rlen = 10;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
@@ -523,7 +527,7 @@ static int si2168_init(struct dvb_frontend *fe)
        cmd.args[4] |= dev->ts_mode;
        cmd.wlen = 6;
        cmd.rlen = 4;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
@@ -545,7 +549,8 @@ err:
 
 static int si2168_sleep(struct dvb_frontend *fe)
 {
-       struct si2168_dev *dev = fe->demodulator_priv;
+       struct i2c_client *client = fe->demodulator_priv;
+       struct si2168_dev *dev = i2c_get_clientdata(client);
        int ret;
        struct si2168_cmd cmd;
 
@@ -556,7 +561,7 @@ static int si2168_sleep(struct dvb_frontend *fe)
        memcpy(cmd.args, "\x13", 1);
        cmd.wlen = 1;
        cmd.rlen = 0;
-       ret = si2168_cmd_execute(dev, &cmd);
+       ret = si2168_cmd_execute(client, &cmd);
        if (ret)
                goto err;
 
@@ -581,7 +586,8 @@ static int si2168_get_tune_settings(struct dvb_frontend *fe,
  */
 static int si2168_select(struct i2c_adapter *adap, void *mux_priv, u32 chan)
 {
-       struct si2168_dev *dev = mux_priv;
+       struct i2c_client *client = mux_priv;
+       struct si2168_dev *dev = i2c_get_clientdata(client);
        int ret;
        struct i2c_msg gate_open_msg = {
                .addr = dev->client->addr,
@@ -607,7 +613,8 @@ static int si2168_select(struct i2c_adapter *adap, void *mux_priv, u32 chan)
 
 static int si2168_deselect(struct i2c_adapter *adap, void *mux_priv, u32 chan)
 {
-       struct si2168_dev *dev = mux_priv;
+       struct i2c_client *client = mux_priv;
+       struct si2168_dev *dev = i2c_get_clientdata(client);
        int ret;
        struct i2c_msg gate_close_msg = {
                .addr = dev->client->addr,
@@ -688,8 +695,8 @@ static int si2168_probe(struct i2c_client *client,
        mutex_init(&dev->i2c_mutex);
 
        /* create mux i2c adapter for tuner */
-       dev->adapter = i2c_add_mux_adapter(client->adapter, &client->dev, dev,
-                       0, 0, 0, si2168_select, si2168_deselect);
+       dev->adapter = i2c_add_mux_adapter(client->adapter, &client->dev,
+                       client, 0, 0, 0, si2168_select, si2168_deselect);
        if (dev->adapter == NULL) {
                ret = -ENODEV;
                goto err;
@@ -697,7 +704,7 @@ static int si2168_probe(struct i2c_client *client,
 
        /* create dvb_frontend */
        memcpy(&dev->fe.ops, &si2168_ops, sizeof(struct dvb_frontend_ops));
-       dev->fe.demodulator_priv = dev;
+       dev->fe.demodulator_priv = client;
 
        *config->i2c_adapter = dev->adapter;
        *config->fe = &dev->fe;