Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * |
| 3 | * device driver for philips saa7134 based TV cards |
| 4 | * i2c interface support |
| 5 | * |
| 6 | * (c) 2001,02 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs] |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 21 | */ |
| 22 | |
| 23 | #include <linux/init.h> |
| 24 | #include <linux/list.h> |
| 25 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #include <linux/kernel.h> |
| 27 | #include <linux/slab.h> |
| 28 | #include <linux/delay.h> |
| 29 | |
| 30 | #include "saa7134-reg.h" |
| 31 | #include "saa7134.h" |
Michael Krufky | 5e453dc | 2006-01-09 15:32:31 -0200 | [diff] [blame] | 32 | #include <media/v4l2-common.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | |
| 34 | /* ----------------------------------------------------------- */ |
| 35 | |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 36 | static unsigned int i2c_debug; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | module_param(i2c_debug, int, 0644); |
| 38 | MODULE_PARM_DESC(i2c_debug,"enable debug messages [i2c]"); |
| 39 | |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 40 | static unsigned int i2c_scan; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | module_param(i2c_scan, int, 0444); |
| 42 | MODULE_PARM_DESC(i2c_scan,"scan i2c bus at insmod time"); |
| 43 | |
| 44 | #define d1printk if (1 == i2c_debug) printk |
| 45 | #define d2printk if (2 == i2c_debug) printk |
| 46 | |
| 47 | #define I2C_WAIT_DELAY 32 |
| 48 | #define I2C_WAIT_RETRY 16 |
| 49 | |
| 50 | /* ----------------------------------------------------------- */ |
| 51 | |
| 52 | static char *str_i2c_status[] = { |
| 53 | "IDLE", "DONE_STOP", "BUSY", "TO_SCL", "TO_ARB", "DONE_WRITE", |
| 54 | "DONE_READ", "DONE_WRITE_TO", "DONE_READ_TO", "NO_DEVICE", |
| 55 | "NO_ACKN", "BUS_ERR", "ARB_LOST", "SEQ_ERR", "ST_ERR", "SW_ERR" |
| 56 | }; |
| 57 | |
| 58 | enum i2c_status { |
| 59 | IDLE = 0, // no I2C command pending |
| 60 | DONE_STOP = 1, // I2C command done and STOP executed |
| 61 | BUSY = 2, // executing I2C command |
| 62 | TO_SCL = 3, // executing I2C command, time out on clock stretching |
| 63 | TO_ARB = 4, // time out on arbitration trial, still trying |
| 64 | DONE_WRITE = 5, // I2C command done and awaiting next write command |
| 65 | DONE_READ = 6, // I2C command done and awaiting next read command |
| 66 | DONE_WRITE_TO = 7, // see 5, and time out on status echo |
| 67 | DONE_READ_TO = 8, // see 6, and time out on status echo |
| 68 | NO_DEVICE = 9, // no acknowledge on device slave address |
| 69 | NO_ACKN = 10, // no acknowledge after data byte transfer |
| 70 | BUS_ERR = 11, // bus error |
| 71 | ARB_LOST = 12, // arbitration lost during transfer |
| 72 | SEQ_ERR = 13, // erroneous programming sequence |
| 73 | ST_ERR = 14, // wrong status echoing |
| 74 | SW_ERR = 15 // software error |
| 75 | }; |
| 76 | |
| 77 | static char *str_i2c_attr[] = { |
| 78 | "NOP", "STOP", "CONTINUE", "START" |
| 79 | }; |
| 80 | |
| 81 | enum i2c_attr { |
| 82 | NOP = 0, // no operation on I2C bus |
| 83 | STOP = 1, // stop condition, no associated byte transfer |
| 84 | CONTINUE = 2, // continue with byte transfer |
| 85 | START = 3 // start condition with byte transfer |
| 86 | }; |
| 87 | |
| 88 | static inline enum i2c_status i2c_get_status(struct saa7134_dev *dev) |
| 89 | { |
| 90 | enum i2c_status status; |
| 91 | |
| 92 | status = saa_readb(SAA7134_I2C_ATTR_STATUS) & 0x0f; |
| 93 | d2printk(KERN_DEBUG "%s: i2c stat <= %s\n",dev->name, |
| 94 | str_i2c_status[status]); |
| 95 | return status; |
| 96 | } |
| 97 | |
| 98 | static inline void i2c_set_status(struct saa7134_dev *dev, |
| 99 | enum i2c_status status) |
| 100 | { |
| 101 | d2printk(KERN_DEBUG "%s: i2c stat => %s\n",dev->name, |
| 102 | str_i2c_status[status]); |
| 103 | saa_andorb(SAA7134_I2C_ATTR_STATUS,0x0f,status); |
| 104 | } |
| 105 | |
| 106 | static inline void i2c_set_attr(struct saa7134_dev *dev, enum i2c_attr attr) |
| 107 | { |
| 108 | d2printk(KERN_DEBUG "%s: i2c attr => %s\n",dev->name, |
| 109 | str_i2c_attr[attr]); |
| 110 | saa_andorb(SAA7134_I2C_ATTR_STATUS,0xc0,attr << 6); |
| 111 | } |
| 112 | |
| 113 | static inline int i2c_is_error(enum i2c_status status) |
| 114 | { |
| 115 | switch (status) { |
| 116 | case NO_DEVICE: |
| 117 | case NO_ACKN: |
| 118 | case BUS_ERR: |
| 119 | case ARB_LOST: |
| 120 | case SEQ_ERR: |
| 121 | case ST_ERR: |
Richard Knutsson | e8be02a | 2007-02-06 21:52:04 -0300 | [diff] [blame] | 122 | return true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | default: |
Richard Knutsson | e8be02a | 2007-02-06 21:52:04 -0300 | [diff] [blame] | 124 | return false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | } |
| 126 | } |
| 127 | |
| 128 | static inline int i2c_is_idle(enum i2c_status status) |
| 129 | { |
| 130 | switch (status) { |
| 131 | case IDLE: |
| 132 | case DONE_STOP: |
Richard Knutsson | e8be02a | 2007-02-06 21:52:04 -0300 | [diff] [blame] | 133 | return true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | default: |
Richard Knutsson | e8be02a | 2007-02-06 21:52:04 -0300 | [diff] [blame] | 135 | return false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | } |
| 137 | } |
| 138 | |
| 139 | static inline int i2c_is_busy(enum i2c_status status) |
| 140 | { |
| 141 | switch (status) { |
| 142 | case BUSY: |
Dmitry Belimov | 8fb737b | 2008-04-23 14:07:09 -0300 | [diff] [blame] | 143 | case TO_SCL: |
| 144 | case TO_ARB: |
Richard Knutsson | e8be02a | 2007-02-06 21:52:04 -0300 | [diff] [blame] | 145 | return true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | default: |
Richard Knutsson | e8be02a | 2007-02-06 21:52:04 -0300 | [diff] [blame] | 147 | return false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | } |
| 149 | } |
| 150 | |
| 151 | static int i2c_is_busy_wait(struct saa7134_dev *dev) |
| 152 | { |
| 153 | enum i2c_status status; |
| 154 | int count; |
| 155 | |
| 156 | for (count = 0; count < I2C_WAIT_RETRY; count++) { |
| 157 | status = i2c_get_status(dev); |
| 158 | if (!i2c_is_busy(status)) |
| 159 | break; |
| 160 | saa_wait(I2C_WAIT_DELAY); |
| 161 | } |
| 162 | if (I2C_WAIT_RETRY == count) |
Richard Knutsson | e8be02a | 2007-02-06 21:52:04 -0300 | [diff] [blame] | 163 | return false; |
| 164 | return true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | } |
| 166 | |
| 167 | static int i2c_reset(struct saa7134_dev *dev) |
| 168 | { |
| 169 | enum i2c_status status; |
| 170 | int count; |
| 171 | |
| 172 | d2printk(KERN_DEBUG "%s: i2c reset\n",dev->name); |
| 173 | status = i2c_get_status(dev); |
| 174 | if (!i2c_is_error(status)) |
Richard Knutsson | e8be02a | 2007-02-06 21:52:04 -0300 | [diff] [blame] | 175 | return true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | i2c_set_status(dev,status); |
| 177 | |
| 178 | for (count = 0; count < I2C_WAIT_RETRY; count++) { |
| 179 | status = i2c_get_status(dev); |
| 180 | if (!i2c_is_error(status)) |
| 181 | break; |
| 182 | udelay(I2C_WAIT_DELAY); |
| 183 | } |
| 184 | if (I2C_WAIT_RETRY == count) |
Richard Knutsson | e8be02a | 2007-02-06 21:52:04 -0300 | [diff] [blame] | 185 | return false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | |
| 187 | if (!i2c_is_idle(status)) |
Richard Knutsson | e8be02a | 2007-02-06 21:52:04 -0300 | [diff] [blame] | 188 | return false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | |
| 190 | i2c_set_attr(dev,NOP); |
Richard Knutsson | e8be02a | 2007-02-06 21:52:04 -0300 | [diff] [blame] | 191 | return true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | } |
| 193 | |
| 194 | static inline int i2c_send_byte(struct saa7134_dev *dev, |
| 195 | enum i2c_attr attr, |
| 196 | unsigned char data) |
| 197 | { |
| 198 | enum i2c_status status; |
| 199 | __u32 dword; |
| 200 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | /* have to write both attr + data in one 32bit word */ |
| 202 | dword = saa_readl(SAA7134_I2C_ATTR_STATUS >> 2); |
| 203 | dword &= 0x0f; |
| 204 | dword |= (attr << 6); |
| 205 | dword |= ((__u32)data << 8); |
| 206 | dword |= 0x00 << 16; /* 100 kHz */ |
| 207 | // dword |= 0x40 << 16; /* 400 kHz */ |
| 208 | dword |= 0xf0 << 24; |
| 209 | saa_writel(SAA7134_I2C_ATTR_STATUS >> 2, dword); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | d2printk(KERN_DEBUG "%s: i2c data => 0x%x\n",dev->name,data); |
| 211 | |
| 212 | if (!i2c_is_busy_wait(dev)) |
| 213 | return -EIO; |
| 214 | status = i2c_get_status(dev); |
| 215 | if (i2c_is_error(status)) |
| 216 | return -EIO; |
| 217 | return 0; |
| 218 | } |
| 219 | |
| 220 | static inline int i2c_recv_byte(struct saa7134_dev *dev) |
| 221 | { |
| 222 | enum i2c_status status; |
| 223 | unsigned char data; |
| 224 | |
| 225 | i2c_set_attr(dev,CONTINUE); |
| 226 | if (!i2c_is_busy_wait(dev)) |
| 227 | return -EIO; |
| 228 | status = i2c_get_status(dev); |
| 229 | if (i2c_is_error(status)) |
| 230 | return -EIO; |
| 231 | data = saa_readb(SAA7134_I2C_DATA); |
| 232 | d2printk(KERN_DEBUG "%s: i2c data <= 0x%x\n",dev->name,data); |
| 233 | return data; |
| 234 | } |
| 235 | |
| 236 | static int saa7134_i2c_xfer(struct i2c_adapter *i2c_adap, |
| 237 | struct i2c_msg *msgs, int num) |
| 238 | { |
| 239 | struct saa7134_dev *dev = i2c_adap->algo_data; |
| 240 | enum i2c_status status; |
| 241 | unsigned char data; |
| 242 | int addr,rc,i,byte; |
| 243 | |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 244 | status = i2c_get_status(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | if (!i2c_is_idle(status)) |
| 246 | if (!i2c_reset(dev)) |
| 247 | return -EIO; |
| 248 | |
| 249 | d2printk("start xfer\n"); |
| 250 | d1printk(KERN_DEBUG "%s: i2c xfer:",dev->name); |
| 251 | for (i = 0; i < num; i++) { |
| 252 | if (!(msgs[i].flags & I2C_M_NOSTART) || 0 == i) { |
| 253 | /* send address */ |
| 254 | d2printk("send address\n"); |
| 255 | addr = msgs[i].addr << 1; |
| 256 | if (msgs[i].flags & I2C_M_RD) |
| 257 | addr |= 1; |
Oldřich Jedlička | cb3bf50 | 2009-02-12 03:43:11 -0300 | [diff] [blame] | 258 | if (i > 0 && msgs[i].flags & I2C_M_RD && msgs[i].addr != 0x40) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | /* workaround for a saa7134 i2c bug |
| 260 | * needed to talk to the mt352 demux |
| 261 | * thanks to pinnacle for the hint */ |
Michael Krufky | b9dcdb6 | 2009-05-20 16:06:10 -0300 | [diff] [blame] | 262 | int quirk = 0xfe; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | d1printk(" [%02x quirk]",quirk); |
| 264 | i2c_send_byte(dev,START,quirk); |
| 265 | i2c_recv_byte(dev); |
| 266 | } |
| 267 | d1printk(" < %02x", addr); |
| 268 | rc = i2c_send_byte(dev,START,addr); |
| 269 | if (rc < 0) |
| 270 | goto err; |
| 271 | } |
| 272 | if (msgs[i].flags & I2C_M_RD) { |
| 273 | /* read bytes */ |
| 274 | d2printk("read bytes\n"); |
| 275 | for (byte = 0; byte < msgs[i].len; byte++) { |
| 276 | d1printk(" ="); |
| 277 | rc = i2c_recv_byte(dev); |
| 278 | if (rc < 0) |
| 279 | goto err; |
| 280 | d1printk("%02x", rc); |
| 281 | msgs[i].buf[byte] = rc; |
| 282 | } |
| 283 | } else { |
| 284 | /* write bytes */ |
| 285 | d2printk("write bytes\n"); |
| 286 | for (byte = 0; byte < msgs[i].len; byte++) { |
| 287 | data = msgs[i].buf[byte]; |
| 288 | d1printk(" %02x", data); |
| 289 | rc = i2c_send_byte(dev,CONTINUE,data); |
| 290 | if (rc < 0) |
| 291 | goto err; |
| 292 | } |
| 293 | } |
| 294 | } |
| 295 | d2printk("xfer done\n"); |
| 296 | d1printk(" >"); |
| 297 | i2c_set_attr(dev,STOP); |
| 298 | rc = -EIO; |
| 299 | if (!i2c_is_busy_wait(dev)) |
| 300 | goto err; |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 301 | status = i2c_get_status(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | if (i2c_is_error(status)) |
| 303 | goto err; |
Mauro Carvalho Chehab | fd3113e | 2005-07-31 22:34:43 -0700 | [diff] [blame] | 304 | /* ensure that the bus is idle for at least one bit slot */ |
| 305 | msleep(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | |
| 307 | d1printk("\n"); |
| 308 | return num; |
| 309 | err: |
| 310 | if (1 == i2c_debug) { |
| 311 | status = i2c_get_status(dev); |
| 312 | printk(" ERROR: %s\n",str_i2c_status[status]); |
| 313 | } |
| 314 | return rc; |
| 315 | } |
| 316 | |
| 317 | /* ----------------------------------------------------------- */ |
| 318 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | static u32 functionality(struct i2c_adapter *adap) |
| 320 | { |
| 321 | return I2C_FUNC_SMBUS_EMUL; |
| 322 | } |
| 323 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | static struct i2c_algorithm saa7134_algo = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | .master_xfer = saa7134_i2c_xfer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | .functionality = functionality, |
| 327 | }; |
| 328 | |
| 329 | static struct i2c_adapter saa7134_adap_template = { |
| 330 | .owner = THIS_MODULE, |
Jean Delvare | fae91e7 | 2005-08-15 19:57:04 +0200 | [diff] [blame] | 331 | .name = "saa7134", |
Jean Delvare | 1684a984 | 2005-08-11 23:51:10 +0200 | [diff] [blame] | 332 | .id = I2C_HW_SAA7134, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | .algo = &saa7134_algo, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | }; |
| 335 | |
| 336 | static struct i2c_client saa7134_client_template = { |
Jean Delvare | fae91e7 | 2005-08-15 19:57:04 +0200 | [diff] [blame] | 337 | .name = "saa7134 internal", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | }; |
| 339 | |
| 340 | /* ----------------------------------------------------------- */ |
| 341 | |
| 342 | static int |
| 343 | saa7134_i2c_eeprom(struct saa7134_dev *dev, unsigned char *eedata, int len) |
| 344 | { |
| 345 | unsigned char buf; |
| 346 | int i,err; |
| 347 | |
| 348 | dev->i2c_client.addr = 0xa0 >> 1; |
| 349 | buf = 0; |
| 350 | if (1 != (err = i2c_master_send(&dev->i2c_client,&buf,1))) { |
| 351 | printk(KERN_INFO "%s: Huh, no eeprom present (err=%d)?\n", |
| 352 | dev->name,err); |
| 353 | return -1; |
| 354 | } |
| 355 | if (len != (err = i2c_master_recv(&dev->i2c_client,eedata,len))) { |
| 356 | printk(KERN_WARNING "%s: i2c eeprom read error (err=%d)\n", |
| 357 | dev->name,err); |
| 358 | return -1; |
| 359 | } |
| 360 | for (i = 0; i < len; i++) { |
| 361 | if (0 == (i % 16)) |
| 362 | printk(KERN_INFO "%s: i2c eeprom %02x:",dev->name,i); |
| 363 | printk(" %02x",eedata[i]); |
| 364 | if (15 == (i % 16)) |
| 365 | printk("\n"); |
| 366 | } |
| 367 | return 0; |
| 368 | } |
| 369 | |
| 370 | static char *i2c_devs[128] = { |
| 371 | [ 0x20 ] = "mpeg encoder (saa6752hs)", |
| 372 | [ 0xa0 >> 1 ] = "eeprom", |
| 373 | [ 0xc0 >> 1 ] = "tuner (analog)", |
| 374 | [ 0x86 >> 1 ] = "tda9887", |
Andrey J. Melnikoff (TEMHOTA) | e8018c9 | 2008-01-07 05:17:39 -0300 | [diff] [blame] | 375 | [ 0x5a >> 1 ] = "remote control", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | }; |
| 377 | |
| 378 | static void do_i2c_scan(char *name, struct i2c_client *c) |
| 379 | { |
| 380 | unsigned char buf; |
| 381 | int i,rc; |
| 382 | |
Mauro Carvalho Chehab | 53c4e95 | 2007-03-29 08:42:30 -0300 | [diff] [blame] | 383 | for (i = 0; i < ARRAY_SIZE(i2c_devs); i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | c->addr = i; |
| 385 | rc = i2c_master_recv(c,&buf,0); |
| 386 | if (rc < 0) |
| 387 | continue; |
| 388 | printk("%s: i2c scan: found device @ 0x%x [%s]\n", |
| 389 | name, i << 1, i2c_devs[i] ? i2c_devs[i] : "???"); |
| 390 | } |
| 391 | } |
| 392 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | int saa7134_i2c_register(struct saa7134_dev *dev) |
| 394 | { |
| 395 | dev->i2c_adap = saa7134_adap_template; |
| 396 | dev->i2c_adap.dev.parent = &dev->pci->dev; |
| 397 | strcpy(dev->i2c_adap.name,dev->name); |
| 398 | dev->i2c_adap.algo_data = dev; |
Hans Verkuil | fac6986 | 2009-01-17 12:17:14 -0300 | [diff] [blame] | 399 | i2c_set_adapdata(&dev->i2c_adap, &dev->v4l2_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | i2c_add_adapter(&dev->i2c_adap); |
| 401 | |
| 402 | dev->i2c_client = saa7134_client_template; |
| 403 | dev->i2c_client.adapter = &dev->i2c_adap; |
| 404 | |
| 405 | saa7134_i2c_eeprom(dev,dev->eedata,sizeof(dev->eedata)); |
| 406 | if (i2c_scan) |
| 407 | do_i2c_scan(dev->name,&dev->i2c_client); |
Jean Delvare | c668f32 | 2009-05-13 16:48:50 -0300 | [diff] [blame] | 408 | |
| 409 | /* Instantiate the IR receiver device, if present */ |
| 410 | saa7134_probe_i2c_ir(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | return 0; |
| 412 | } |
| 413 | |
| 414 | int saa7134_i2c_unregister(struct saa7134_dev *dev) |
| 415 | { |
| 416 | i2c_del_adapter(&dev->i2c_adap); |
| 417 | return 0; |
| 418 | } |
| 419 | |
| 420 | /* ----------------------------------------------------------- */ |
| 421 | /* |
| 422 | * Local variables: |
| 423 | * c-basic-offset: 8 |
| 424 | * End: |
| 425 | */ |