diff options
author | Jon Smirl <jonsmirl@gmail.com> | 2008-06-30 19:01:26 -0400 |
---|---|---|
committer | Grant Likely <grant.likely@secretlab.ca> | 2008-07-12 14:10:23 -0400 |
commit | 0d1cde235874b00905bce23f659690d060ebf475 (patch) | |
tree | 918cad848eb4d85a3ac909666b5639ff618b2bdc /arch/powerpc/sysdev/fsl_soc.c | |
parent | 6eb9d32298290b956693fd85c815b817d39a9505 (diff) |
powerpc/i2c: Convert i2c-mpc into an of_platform driver
Convert i2c-mpc to an of_platform driver. Utilize the code in
drivers/of-i2c.c to make i2c modules dynamically loadable by the
device tree.
Signed-off-by: Jon Smirl <jonsmirl@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'arch/powerpc/sysdev/fsl_soc.c')
-rw-r--r-- | arch/powerpc/sysdev/fsl_soc.c | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c index ca54563d5c7e..ebcec7362f95 100644 --- a/arch/powerpc/sysdev/fsl_soc.c +++ b/arch/powerpc/sysdev/fsl_soc.c | |||
@@ -414,139 +414,6 @@ err: | |||
414 | 414 | ||
415 | arch_initcall(gfar_of_init); | 415 | arch_initcall(gfar_of_init); |
416 | 416 | ||
417 | #ifdef CONFIG_I2C_BOARDINFO | ||
418 | #include <linux/i2c.h> | ||
419 | struct i2c_driver_device { | ||
420 | char *of_device; | ||
421 | char *i2c_type; | ||
422 | }; | ||
423 | |||
424 | static struct i2c_driver_device i2c_devices[] __initdata = { | ||
425 | {"ricoh,rs5c372a", "rs5c372a"}, | ||
426 | {"ricoh,rs5c372b", "rs5c372b"}, | ||
427 | {"ricoh,rv5c386", "rv5c386"}, | ||
428 | {"ricoh,rv5c387a", "rv5c387a"}, | ||
429 | {"dallas,ds1307", "ds1307"}, | ||
430 | {"dallas,ds1337", "ds1337"}, | ||
431 | {"dallas,ds1338", "ds1338"}, | ||
432 | {"dallas,ds1339", "ds1339"}, | ||
433 | {"dallas,ds1340", "ds1340"}, | ||
434 | {"stm,m41t00", "m41t00"}, | ||
435 | {"dallas,ds1374", "ds1374"}, | ||
436 | {"cirrus,cs4270", "cs4270"}, | ||
437 | }; | ||
438 | |||
439 | static int __init of_find_i2c_driver(struct device_node *node, | ||
440 | struct i2c_board_info *info) | ||
441 | { | ||
442 | int i; | ||
443 | |||
444 | for (i = 0; i < ARRAY_SIZE(i2c_devices); i++) { | ||
445 | if (!of_device_is_compatible(node, i2c_devices[i].of_device)) | ||
446 | continue; | ||
447 | if (strlcpy(info->type, i2c_devices[i].i2c_type, | ||
448 | I2C_NAME_SIZE) >= I2C_NAME_SIZE) | ||
449 | return -ENOMEM; | ||
450 | return 0; | ||
451 | } | ||
452 | |||
453 | pr_warning("fsl_soc.c: unrecognized i2c node %s\n", | ||
454 | (const char *) of_get_property(node, "compatible", NULL)); | ||
455 | |||
456 | return -ENODEV; | ||
457 | } | ||
458 | |||
459 | static void __init of_register_i2c_devices(struct device_node *adap_node, | ||
460 | int bus_num) | ||
461 | { | ||
462 | struct device_node *node = NULL; | ||
463 | |||
464 | while ((node = of_get_next_child(adap_node, node))) { | ||
465 | struct i2c_board_info info = {}; | ||
466 | const u32 *addr; | ||
467 | int len; | ||
468 | |||
469 | addr = of_get_property(node, "reg", &len); | ||
470 | if (!addr || len < sizeof(int) || *addr > (1 << 10) - 1) { | ||
471 | printk(KERN_WARNING "fsl_soc.c: invalid i2c device entry\n"); | ||
472 | continue; | ||
473 | } | ||
474 | |||
475 | info.irq = irq_of_parse_and_map(node, 0); | ||
476 | if (info.irq == NO_IRQ) | ||
477 | info.irq = -1; | ||
478 | |||
479 | if (of_find_i2c_driver(node, &info) < 0) | ||
480 | continue; | ||
481 | |||
482 | info.addr = *addr; | ||
483 | |||
484 | i2c_register_board_info(bus_num, &info, 1); | ||
485 | } | ||
486 | } | ||
487 | |||
488 | static int __init fsl_i2c_of_init(void) | ||
489 | { | ||
490 | struct device_node *np; | ||
491 | unsigned int i = 0; | ||
492 | struct platform_device *i2c_dev; | ||
493 | int ret; | ||
494 | |||
495 | for_each_compatible_node(np, NULL, "fsl-i2c") { | ||
496 | struct resource r[2]; | ||
497 | struct fsl_i2c_platform_data i2c_data; | ||
498 | const unsigned char *flags = NULL; | ||
499 | int idx; | ||
500 | const u32 *iprop; | ||
501 | |||
502 | memset(&r, 0, sizeof(r)); | ||
503 | memset(&i2c_data, 0, sizeof(i2c_data)); | ||
504 | |||
505 | ret = of_address_to_resource(np, 0, &r[0]); | ||
506 | if (ret) | ||
507 | goto err; | ||
508 | |||
509 | of_irq_to_resource(np, 0, &r[1]); | ||
510 | |||
511 | iprop = of_get_property(np, "cell-index", NULL); | ||
512 | idx = iprop ? *iprop : i; | ||
513 | |||
514 | i2c_dev = platform_device_register_simple("fsl-i2c", idx, r, 2); | ||
515 | if (IS_ERR(i2c_dev)) { | ||
516 | ret = PTR_ERR(i2c_dev); | ||
517 | goto err; | ||
518 | } | ||
519 | |||
520 | i2c_data.device_flags = 0; | ||
521 | flags = of_get_property(np, "dfsrr", NULL); | ||
522 | if (flags) | ||
523 | i2c_data.device_flags |= FSL_I2C_DEV_SEPARATE_DFSRR; | ||
524 | |||
525 | flags = of_get_property(np, "fsl5200-clocking", NULL); | ||
526 | if (flags) | ||
527 | i2c_data.device_flags |= FSL_I2C_DEV_CLOCK_5200; | ||
528 | |||
529 | ret = | ||
530 | platform_device_add_data(i2c_dev, &i2c_data, | ||
531 | sizeof(struct | ||
532 | fsl_i2c_platform_data)); | ||
533 | if (ret) | ||
534 | goto unreg; | ||
535 | |||
536 | of_register_i2c_devices(np, idx); | ||
537 | i++; | ||
538 | } | ||
539 | |||
540 | return 0; | ||
541 | |||
542 | unreg: | ||
543 | platform_device_unregister(i2c_dev); | ||
544 | err: | ||
545 | return ret; | ||
546 | } | ||
547 | |||
548 | arch_initcall(fsl_i2c_of_init); | ||
549 | #endif | ||
550 | 417 | ||
551 | #ifdef CONFIG_PPC_83xx | 418 | #ifdef CONFIG_PPC_83xx |
552 | static int __init mpc83xx_wdt_init(void) | 419 | static int __init mpc83xx_wdt_init(void) |