V4L/DVB (6471): tuner: i2c_client cannot be part of the tuner struct

The bus-based I2C subsystem allocates the i2c_client struct. So if in order to
be able to convert the tuner to the bus-based I2C API the embedded i2c_client
struct must be removed from the tuner struct and replaced with a pointer.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

4 files changed, 59 insertions, 50 deletions

diff --git a/drivers/media/video/tda8290.c b/drivers/media/video/tda8290.c
index ed22be0f5941..c7705cbab2fb 100644
--- a/drivers/media/video/tda8290.c
+++ b/drivers/media/video/tda8290.c
@@ -608,22 +608,22 @@ static int tda829x_find_tuner(struct dvb_frontend *fe)
 
         switch (priv->ver) {
         case TDA8290 | TDA8275:
-                strlcpy(t->i2c.name, "tda8290+75", sizeof(t->i2c.name));
+                strlcpy(t->i2c->name, "tda8290+75", sizeof(t->i2c->name));
                 break;
         case TDA8295 | TDA8275:
-                strlcpy(t->i2c.name, "tda8295+75", sizeof(t->i2c.name));
+                strlcpy(t->i2c->name, "tda8295+75", sizeof(t->i2c->name));
                 break;
         case TDA8290 | TDA8275A:
-                strlcpy(t->i2c.name, "tda8290+75a", sizeof(t->i2c.name));
+                strlcpy(t->i2c->name, "tda8290+75a", sizeof(t->i2c->name));
                 break;
         case TDA8295 | TDA8275A:
-                strlcpy(t->i2c.name, "tda8295+75a", sizeof(t->i2c.name));
+                strlcpy(t->i2c->name, "tda8295+75a", sizeof(t->i2c->name));
                 break;
         case TDA8290 | TDA18271:
-                strlcpy(t->i2c.name, "tda8290+18271", sizeof(t->i2c.name));
+                strlcpy(t->i2c->name, "tda8290+18271", sizeof(t->i2c->name));
                 break;
         case TDA8295 | TDA18271:
-                strlcpy(t->i2c.name, "tda8295+18271", sizeof(t->i2c.name));
+                strlcpy(t->i2c->name, "tda8295+18271", sizeof(t->i2c->name));
                 break;
         default:
                 return -EINVAL;
@@ -665,8 +665,8 @@ int tda829x_attach(struct tuner *t)
                 return -ENOMEM;
         fe->analog_demod_priv = priv;
 
-        priv->i2c_props.addr     = t->i2c.addr;
-        priv->i2c_props.adap     = t->i2c.adapter;
+        priv->i2c_props.addr     = t->i2c->addr;
+        priv->i2c_props.adap     = t->i2c->adapter;
         priv->cfg.config         = &t->config;
         priv->cfg.tuner_callback = t->tuner_callback;
         priv->t = t;
@@ -696,7 +696,7 @@ int tda829x_attach(struct tuner *t)
         } else if (priv->ver & TDA8295)
                 tda8295_init_if(fe);
 
-        tuner_info("type set to %s\n", t->i2c.name);
+        tuner_info("type set to %s\n", t->i2c->name);
 
         t->mode = V4L2_TUNER_ANALOG_TV;
 
@@ -707,8 +707,8 @@ EXPORT_SYMBOL_GPL(tda829x_attach);
 int tda8290_probe(struct tuner *t)
 {
         struct tuner_i2c_props i2c_props = {
-                .adap = t->i2c.adapter,
-                .addr = t->i2c.addr
+                .adap = t->i2c->adapter,
+                .addr = t->i2c->addr
         };
 
         unsigned char soft_reset[]   = { 0x00, 0x00 };
diff --git a/drivers/media/video/tda9887.c b/drivers/media/video/tda9887.c
index 080bd308073b..dfa2964d7ef3 100644
--- a/drivers/media/video/tda9887.c
+++ b/drivers/media/video/tda9887.c
@@ -24,14 +24,14 @@ static int tda9887_debug;
 module_param_named(debug, tda9887_debug, int, 0644);
 
 #define tda9887_info(fmt, arg...) do {\
-        printk(KERN_INFO "%s %d-%04x: " fmt, priv->t->i2c.name, \
-                        i2c_adapter_id(priv->t->i2c.adapter), \
-                        priv->t->i2c.addr, ##arg); } while (0)
+        printk(KERN_INFO "%s %d-%04x: " fmt, priv->t->i2c->name, \
+                        i2c_adapter_id(priv->t->i2c->adapter), \
+                        priv->t->i2c->addr, ##arg); } while (0)
 #define tda9887_dbg(fmt, arg...) do {\
         if (tda9887_debug) \
-                printk(KERN_INFO "%s %d-%04x: " fmt, priv->t->i2c.name, \
-                        i2c_adapter_id(priv->t->i2c.adapter), \
-                        priv->t->i2c.addr, ##arg); } while (0)
+                printk(KERN_INFO "%s %d-%04x: " fmt, priv->t->i2c->name, \
+                        i2c_adapter_id(priv->t->i2c->adapter), \
+                        priv->t->i2c->addr, ##arg); } while (0)
 
 struct tda9887_priv {
         struct tuner_i2c_props i2c_props;
@@ -651,14 +651,14 @@ int tda9887_attach(struct tuner *t)
                 return -ENOMEM;
         t->fe.analog_demod_priv = priv;
 
-        priv->i2c_props.addr = t->i2c.addr;
-        priv->i2c_props.adap = t->i2c.adapter;
+        priv->i2c_props.addr = t->i2c->addr;
+        priv->i2c_props.adap = t->i2c->adapter;
         priv->t = t;
 
-        strlcpy(t->i2c.name, "tda9887", sizeof(t->i2c.name));
+        strlcpy(t->i2c->name, "tda9887", sizeof(t->i2c->name));
 
-        tda9887_info("tda988[5/6/7] found @ 0x%x (%s)\n", t->i2c.addr,
-                                                t->i2c.driver->driver.name);
+        tda9887_info("tda988[5/6/7] found @ 0x%x (%s)\n", t->i2c->addr,
+                     t->i2c->driver->driver.name);
 
         t->fe.ops.analog_demod_ops = &tda9887_tuner_ops;
 
diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c
index bff6e6a3e268..41ff4d2604af 100644
--- a/drivers/media/video/tuner-core.c
+++ b/drivers/media/video/tuner-core.c
@@ -226,20 +226,20 @@ static void set_freq(struct i2c_client *c, unsigned long freq)
 static void tuner_i2c_address_check(struct tuner *t)
 {
         if ((t->type == UNSET || t->type == TUNER_ABSENT) ||
-            ((t->i2c.addr < 0x64) || (t->i2c.addr > 0x6f)))
+            ((t->i2c->addr < 0x64) || (t->i2c->addr > 0x6f)))
                 return;
 
         tuner_warn("====================== WARNING! ======================\n");
         tuner_warn("Support for tuners in i2c address range 0x64 thru 0x6f\n");
         tuner_warn("will soon be dropped. This message indicates that your\n");
         tuner_warn("hardware has a %s tuner at i2c address 0x%02x.\n",
-                   t->i2c.name, t->i2c.addr);
+                   t->i2c->name, t->i2c->addr);
         tuner_warn("To ensure continued support for your device, please\n");
         tuner_warn("send a copy of this message, along with full dmesg\n");
         tuner_warn("output to v4l-dvb-maintainer@linuxtv.org\n");
         tuner_warn("Please use subject line: \"obsolete tuner i2c address.\"\n");
         tuner_warn("driver: %s, addr: 0x%02x, type: %d (%s)\n",
-                   t->i2c.adapter->name, t->i2c.addr, t->type,
+                   t->i2c->adapter->name, t->i2c->addr, t->type,
                    tuners[t->type].name);
         tuner_warn("====================== WARNING! ======================\n");
 }
@@ -250,7 +250,7 @@ static void attach_simple_tuner(struct tuner *t)
                 .type = t->type,
                 .tun  = &tuners[t->type]
         };
-        simple_tuner_attach(&t->fe, t->i2c.adapter, t->i2c.addr, &cfg);
+        simple_tuner_attach(&t->fe, t->i2c->adapter, t->i2c->addr, &cfg);
 }
 
 static void set_type(struct i2c_client *c, unsigned int type,
@@ -292,7 +292,7 @@ static void set_type(struct i2c_client *c, unsigned int type,
 
         switch (t->type) {
         case TUNER_MT2032:
-                microtune_attach(&t->fe, t->i2c.adapter, t->i2c.addr);
+                microtune_attach(&t->fe, t->i2c->adapter, t->i2c->addr);
                 break;
         case TUNER_PHILIPS_TDA8290:
         {
@@ -300,7 +300,7 @@ static void set_type(struct i2c_client *c, unsigned int type,
                 break;
         }
         case TUNER_TEA5767:
-                if (tea5767_attach(&t->fe, t->i2c.adapter, t->i2c.addr) == NULL) {
+                if (tea5767_attach(&t->fe, t->i2c->adapter, t->i2c->addr) == NULL) {
                         t->type = TUNER_ABSENT;
                         t->mode_mask = T_UNINITIALIZED;
                         return;
@@ -308,7 +308,7 @@ static void set_type(struct i2c_client *c, unsigned int type,
                 t->mode_mask = T_RADIO;
                 break;
         case TUNER_TEA5761:
-                if (tea5761_attach(&t->fe, t->i2c.adapter, t->i2c.addr) == NULL) {
+                if (tea5761_attach(&t->fe, t->i2c->adapter, t->i2c->addr) == NULL) {
                         t->type = TUNER_ABSENT;
                         t->mode_mask = T_UNINITIALIZED;
                         return;
@@ -348,13 +348,14 @@ static void set_type(struct i2c_client *c, unsigned int type,
         if (((NULL == ops) ||
              ((NULL == ops->set_tv_freq) && (NULL == ops->set_radio_freq))) &&
             (fe_tuner_ops->set_analog_params)) {
-                strlcpy(t->i2c.name, fe_tuner_ops->info.name, sizeof(t->i2c.name));
+                strlcpy(t->i2c->name, fe_tuner_ops->info.name,
+                        sizeof(t->i2c->name));
 
                 t->fe.ops.analog_demod_ops = &tuner_core_ops;
                 t->fe.analog_demod_priv = t;
         }
 
-        tuner_info("type set to %s\n", t->i2c.name);
+        tuner_info("type set to %s\n", t->i2c->name);
 
         if (t->mode_mask == T_UNINITIALIZED)
                 t->mode_mask = new_mode_mask;
@@ -579,16 +580,23 @@ static unsigned default_mode_mask;
  */
 static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
 {
+        struct i2c_client *client;
         struct tuner *t;
 
-        client_template.adapter = adap;
-        client_template.addr = addr;
+        client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+        if (NULL == client)
+                return -ENOMEM;
 
         t = kzalloc(sizeof(struct tuner), GFP_KERNEL);
-        if (NULL == t)
+        if (NULL == t) {
+                kfree(client);
                 return -ENOMEM;
-        memcpy(&t->i2c, &client_template, sizeof(struct i2c_client));
-        i2c_set_clientdata(&t->i2c, t);
+        }
+        t->i2c = client;
+        client_template.adapter = adap;
+        client_template.addr = addr;
+        memcpy(client, &client_template, sizeof(struct i2c_client));
+        i2c_set_clientdata(client, t);
         t->type = UNSET;
         t->audmode = V4L2_TUNER_MODE_STEREO;
         t->mode_mask = T_UNINITIALIZED;
@@ -598,7 +606,7 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
                 int i,rc;
 
                 memset(buffer, 0, sizeof(buffer));
-                rc = i2c_master_recv(&t->i2c, buffer, sizeof(buffer));
+                rc = i2c_master_recv(client, buffer, sizeof(buffer));
                 tuner_info("I2C RECV = ");
                 for (i=0;i<rc;i++)
                         printk("%02x ",buffer[i]);
@@ -612,7 +620,7 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
         if (!no_autodetect) {
                 switch (addr) {
                 case 0x10:
-                        if (tea5761_autodetection(t->i2c.adapter, t->i2c.addr) != EINVAL) {
+                        if (tea5761_autodetection(t->i2c->adapter, t->i2c->addr) != EINVAL) {
                                 t->type = TUNER_TEA5761;
                                 t->mode_mask = T_RADIO;
                                 t->mode = T_STANDBY;
@@ -639,7 +647,7 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
                         }
                         break;
                 case 0x60:
-                        if (tea5767_autodetection(t->i2c.adapter, t->i2c.addr) != EINVAL) {
+                        if (tea5767_autodetection(t->i2c->adapter, t->i2c->addr) != EINVAL) {
                                 t->type = TUNER_TEA5767;
                                 t->mode_mask = T_RADIO;
                                 t->mode = T_STANDBY;
@@ -664,8 +672,8 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
         /* Should be just before return */
 register_client:
         tuner_info("chip found @ 0x%x (%s)\n", addr << 1, adap->name);
-        i2c_attach_client (&t->i2c);
-        set_type (&t->i2c,t->type, t->mode_mask, t->config, t->tuner_callback);
+        i2c_attach_client (client);
+        set_type (client,t->type, t->mode_mask, t->config, t->tuner_callback);
         return 0;
 }
 
@@ -711,7 +719,7 @@ static int tuner_detach(struct i2c_client *client)
         struct analog_tuner_ops *ops = t->fe.ops.analog_demod_ops;
         int err;
 
-        err = i2c_detach_client(&t->i2c);
+        err = i2c_detach_client(t->i2c);
         if (err) {
                 tuner_warn
                     ("Client deregistration failed, client not detached.\n");
@@ -722,6 +730,7 @@ static int tuner_detach(struct i2c_client *client)
                 ops->release(&t->fe);
 
         kfree(t);
+        kfree(client);
         return 0;
 }
 
@@ -770,7 +779,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
         struct analog_tuner_ops *ops = t->fe.ops.analog_demod_ops;
 
         if (tuner_debug>1)
-                v4l_i2c_print_ioctl(&(t->i2c),cmd);
+                v4l_i2c_print_ioctl(client,cmd);
 
         switch (cmd) {
         /* --- configuration --- */
diff --git a/drivers/media/video/tuner-driver.h b/drivers/media/video/tuner-driver.h
index 728cacd21682..0df136e58eb3 100644
--- a/drivers/media/video/tuner-driver.h
+++ b/drivers/media/video/tuner-driver.h
@@ -45,7 +45,7 @@ struct analog_tuner_ops {
 
 struct tuner {
         /* device */
-        struct i2c_client i2c;
+        struct i2c_client *i2c;
 
         unsigned int type;      /* chip type */
 
@@ -71,16 +71,16 @@ struct tuner {
 /* ------------------------------------------------------------------------ */
 
 #define tuner_warn(fmt, arg...) do {\
-        printk(KERN_WARNING "%s %d-%04x: " fmt, t->i2c.driver->driver.name, \
-                        i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0)
+        printk(KERN_WARNING "%s %d-%04x: " fmt, t->i2c->driver->driver.name, \
+                        i2c_adapter_id(t->i2c->adapter), t->i2c->addr , ##arg); } while (0)
 #define tuner_info(fmt, arg...) do {\
-        printk(KERN_INFO "%s %d-%04x: " fmt, t->i2c.driver->driver.name, \
-                        i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0)
+        printk(KERN_INFO "%s %d-%04x: " fmt, t->i2c->driver->driver.name, \
+                        i2c_adapter_id(t->i2c->adapter), t->i2c->addr , ##arg); } while (0)
 #define tuner_dbg(fmt, arg...) do {\
         extern int tuner_debug; \
         if (tuner_debug) \
-                printk(KERN_DEBUG "%s %d-%04x: " fmt, t->i2c.driver->driver.name, \
-                        i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0)
+                printk(KERN_DEBUG "%s %d-%04x: " fmt, t->i2c->driver->driver.name, \
+                        i2c_adapter_id(t->i2c->adapter), t->i2c->addr , ##arg); } while (0)
 
 #endif /* __TUNER_DRIVER_H__ */