matrox maven: convert to a new-style i2c driver

The legacy i2c model is going away soon, so switch to the new model.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: Petr Vandrovec <VANDROVE@vc.cvut.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 50 insertions, 57 deletions

diff --git a/drivers/video/matrox/i2c-matroxfb.c b/drivers/video/matrox/i2c-matroxfb.c
index 9478439b73d6..c14e3e2212b3 100644
--- a/drivers/video/matrox/i2c-matroxfb.c
+++ b/drivers/video/matrox/i2c-matroxfb.c
@@ -107,7 +107,6 @@ static int i2c_bus_reg(struct i2c_bit_adapter* b, struct matrox_fb_info* minfo,
         b->mask.data = data;
         b->mask.clock = clock;
         b->adapter.owner = THIS_MODULE;
-        b->adapter.id = I2C_HW_B_G400;
         snprintf(b->adapter.name, sizeof(b->adapter.name), name,
                 minfo->fbcon.node);
         i2c_set_adapdata(&b->adapter, b);
@@ -182,6 +181,17 @@ static void* i2c_matroxfb_probe(struct matrox_fb_info* minfo) {
                                   MAT_DATA, MAT_CLK, "MAVEN:fb%u", 0);
                 if (err)
                         printk(KERN_INFO "i2c-matroxfb: Could not register Maven i2c bus. Continuing anyway.\n");
+                else {
+                        struct i2c_board_info maven_info = {
+                                I2C_BOARD_INFO("maven", 0x1b),
+                        };
+                        unsigned short const addr_list[2] = {
+                                0x1b, I2C_CLIENT_END
+                        };
+
+                        i2c_new_probed_device(&m2info->maven.adapter,
+                                              &maven_info, addr_list);
+                }
         }
         return m2info;
 fail_ddc1:;
diff --git a/drivers/video/matrox/matroxfb_maven.c b/drivers/video/matrox/matroxfb_maven.c
index 2ad06b0125c3..042408a8c631 100644
--- a/drivers/video/matrox/matroxfb_maven.c
+++ b/drivers/video/matrox/matroxfb_maven.c
@@ -19,8 +19,6 @@
 #include <linux/matroxfb.h>
 #include <asm/div64.h>
 
-#define MAVEN_I2CID     (0x1B)
-
 #define MGATVO_B        1
 #define MGATVO_C        2
 
@@ -128,7 +126,7 @@ static int get_ctrl_id(__u32 v4l2_id) {
 
 struct maven_data {
         struct matrox_fb_info*          primary_head;
-        struct i2c_client               client;
+        struct i2c_client               *client;
         int                             version;
 };
 
@@ -974,7 +972,7 @@ static inline int maven_compute_timming(struct maven_data* md,
 
 static int maven_program_timming(struct maven_data* md,
                 const struct mavenregs* m) {
-        struct i2c_client* c = &md->client;
+        struct i2c_client *c = md->client;
 
         if (m->mode == MATROXFB_OUTPUT_MODE_MONITOR) {
                 LR(0x80);
@@ -1011,7 +1009,7 @@ static int maven_program_timming(struct maven_data* md,
 }
 
 static inline int maven_resync(struct maven_data* md) {
-        struct i2c_client* c = &md->client;
+        struct i2c_client *c = md->client;
         maven_set_reg(c, 0x95, 0x20);   /* start whole thing */
         return 0;
 }
@@ -1069,48 +1067,48 @@ static int maven_set_control (struct maven_data* md,
                   maven_compute_bwlevel(md, &blacklevel, &whitelevel);
                   blacklevel = (blacklevel >> 2) | ((blacklevel & 3) << 8);
                   whitelevel = (whitelevel >> 2) | ((whitelevel & 3) << 8);
-                  maven_set_reg_pair(&md->client, 0x0e, blacklevel);
-                  maven_set_reg_pair(&md->client, 0x1e, whitelevel);
+                  maven_set_reg_pair(md->client, 0x0e, blacklevel);
+                  maven_set_reg_pair(md->client, 0x1e, whitelevel);
                 }
                 break;
                 case V4L2_CID_SATURATION:
                 {
-                  maven_set_reg(&md->client, 0x20, p->value);
-                  maven_set_reg(&md->client, 0x22, p->value);
+                  maven_set_reg(md->client, 0x20, p->value);
+                  maven_set_reg(md->client, 0x22, p->value);
                 }
                 break;
                 case V4L2_CID_HUE:
                 {
-                  maven_set_reg(&md->client, 0x25, p->value);
+                  maven_set_reg(md->client, 0x25, p->value);
                 }
                 break;
                 case V4L2_CID_GAMMA:
                 {
                   const struct maven_gamma* g;
                   g = maven_compute_gamma(md);
-                  maven_set_reg(&md->client, 0x83, g->reg83);
-                  maven_set_reg(&md->client, 0x84, g->reg84);
-                  maven_set_reg(&md->client, 0x85, g->reg85);
-                  maven_set_reg(&md->client, 0x86, g->reg86);
-                  maven_set_reg(&md->client, 0x87, g->reg87);
-                  maven_set_reg(&md->client, 0x88, g->reg88);
-                  maven_set_reg(&md->client, 0x89, g->reg89);
-                  maven_set_reg(&md->client, 0x8a, g->reg8a);
-                  maven_set_reg(&md->client, 0x8b, g->reg8b);
+                  maven_set_reg(md->client, 0x83, g->reg83);
+                  maven_set_reg(md->client, 0x84, g->reg84);
+                  maven_set_reg(md->client, 0x85, g->reg85);
+                  maven_set_reg(md->client, 0x86, g->reg86);
+                  maven_set_reg(md->client, 0x87, g->reg87);
+                  maven_set_reg(md->client, 0x88, g->reg88);
+                  maven_set_reg(md->client, 0x89, g->reg89);
+                  maven_set_reg(md->client, 0x8a, g->reg8a);
+                  maven_set_reg(md->client, 0x8b, g->reg8b);
                 }
                 break;
                 case MATROXFB_CID_TESTOUT:
                 {
                         unsigned char val 
-                          = maven_get_reg(&md->client,0x8d);
+                          = maven_get_reg(md->client, 0x8d);
                         if (p->value) val |= 0x10;
                         else          val &= ~0x10;
-                        maven_set_reg(&md->client, 0x8d, val);
+                        maven_set_reg(md->client, 0x8d, val);
                 }
                 break;
                 case MATROXFB_CID_DEFLICKER:
                 {
-                  maven_set_reg(&md->client, 0x93, maven_compute_deflicker(md));
+                  maven_set_reg(md->client, 0x93, maven_compute_deflicker(md));
                 }
                 break;
         }
@@ -1189,6 +1187,7 @@ static int maven_init_client(struct i2c_client* clnt) {
         MINFO_FROM(container_of(clnt->adapter, struct i2c_bit_adapter, adapter)->minfo);
 
         md->primary_head = MINFO;
+        md->client = clnt;
         down_write(&ACCESS_FBINFO(altout.lock));
         ACCESS_FBINFO(outputs[1]).output = &maven_altout;
         ACCESS_FBINFO(outputs[1]).src = ACCESS_FBINFO(outputs[1]).default_src;
@@ -1232,14 +1231,11 @@ static int maven_shutdown_client(struct i2c_client* clnt) {
         return 0;
 }
 
-static const unsigned short normal_i2c[] = { MAVEN_I2CID, I2C_CLIENT_END };
-I2C_CLIENT_INSMOD;
-
-static struct i2c_driver maven_driver;
-
-static int maven_detect_client(struct i2c_adapter* adapter, int address, int kind) {
-        int err = 0;
-        struct i2c_client* new_client;
+static int maven_probe(struct i2c_client *client,
+                       const struct i2c_device_id *id)
+{
+        struct i2c_adapter *adapter = client->adapter;
+        int err = -ENODEV;
         struct maven_data* data;
 
         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WRITE_WORD_DATA |
@@ -1250,50 +1246,37 @@ static int maven_detect_client(struct i2c_adapter* adapter, int address, int kin
                 err = -ENOMEM;
                 goto ERROR0;
         }
-        new_client = &data->client;
-        i2c_set_clientdata(new_client, data);
-        new_client->addr = address;
-        new_client->adapter = adapter;
-        new_client->driver = &maven_driver;
-        new_client->flags = 0;
-        strlcpy(new_client->name, "maven", I2C_NAME_SIZE);
-        if ((err = i2c_attach_client(new_client)))
-                goto ERROR3;
-        err = maven_init_client(new_client);
+        i2c_set_clientdata(client, data);
+        err = maven_init_client(client);
         if (err)
                 goto ERROR4;
         return 0;
 ERROR4:;
-        i2c_detach_client(new_client);
-ERROR3:;
         kfree(data);
 ERROR0:;
         return err;
 }
 
-static int maven_attach_adapter(struct i2c_adapter* adapter) {
-        if (adapter->id == I2C_HW_B_G400)
-                return i2c_probe(adapter, &addr_data, &maven_detect_client);
-        return 0;
-}
-
-static int maven_detach_client(struct i2c_client* client) {
-        int err;
-
-        if ((err = i2c_detach_client(client)))
-                return err;
+static int maven_remove(struct i2c_client *client)
+{
         maven_shutdown_client(client);
         kfree(i2c_get_clientdata(client));
         return 0;
 }
 
+static const struct i2c_device_id maven_id[] = {
+        { "maven", 0 },
+        { }
+};
+MODULE_DEVICE_TABLE(i2c, maven_id);
+
 static struct i2c_driver maven_driver={
         .driver = {
                 .name   = "maven",
         },
-        .id             = I2C_DRIVERID_MGATVO,
-        .attach_adapter = maven_attach_adapter,
-        .detach_client  = maven_detach_client,
+        .probe          = maven_probe,
+        .remove         = maven_remove,
+        .id_table       = maven_id,
 };
 
 static int __init matroxfb_maven_init(void)