In kernel which enableded this driver output The following warning, because a slash (/) is in the i2c adapter name by the current driver. This set another adapter name (i2c-pca-platform at 0x) what removed slash.
[ 2.872000] PCA9564/PCA9665 at 0x06000000: Registering gpio failed! [ 2.876000] name 'PCA9564/PCA9665 at 0x06000000' [ 2.880000] ------------[ cut here ]------------ [ 2.880000] WARNING: at fs/proc/generic.c:323 [ 2.880000] Modules linked in: [ 2.880000] [ 2.880000] Pid : 1, Comm: swapper [ 2.880000] CPU : 0 Not tainted (2.6.36-rc1-00238-g67e5b3a #261) [ 2.880000] [ 2.880000] PC is at __xlate_proc_name+0x88/0xa4 [ 2.880000] PR is at __xlate_proc_name+0x88/0xa4 [ 2.880000] PC : 800b3bc4 SP : 9fc41d34 SR : 40008001 TEA : c0018000 [ 2.880000] R0 : 00000037 R1 : 9fc40000 R2 : 9fc40000 R3 : 8049db48 [ 2.880000] R4 : 00000001 R5 : 000000f0 R6 : ffffffff R7 : 8019e450 [ 2.880000] R8 : 00000000 R9 : 9fc41d9c R10 : 00000007 R11 : 9fc41d9c [ 2.880000] R12 : 9fc41d80 R13 : 80167fce R14 : 9fc41d34 [ 2.880000] MACH: 00000461 MACL: 00000000 GBR : 00000000 PR : 800b3bc4 [ 2.880000] [ 2.880000] Call trace: [ 2.880000] [<800b4056>] __proc_create+0x46/0x110 [ 2.880000] [<80162b00>] strlen+0x0/0x58 [ 2.880000] [<800b4824>] proc_mkdir_mode+0x24/0x60 [ 2.880000] [<800b486e>] proc_mkdir+0xe/0x1c [ 2.880000] [<8004740a>] register_handler_proc+0x9e/0xd4 [ 2.880000] [<80045ab2>] __setup_irq+0x226/0x2c0 [ 2.880000] [<80075d50>] kmem_cache_alloc+0x94/0xf0 [ 2.880000] [<80045bcc>] request_threaded_irq+0x80/0xdc [ 2.880000] [<802041c0>] i2c_pca_pf_handler+0x0/0x3c [ 2.880000] [<802ecb62>] i2c_pca_pf_probe+0x162/0x294 [ 2.880000] [<801a3b38>] platform_drv_probe+0x14/0x1c [ 2.880000] [<802e52fc>] klist_next+0x0/0x98 [ 2.880000] [<801a2be4>] driver_probe_device+0x70/0x10c [ 2.880000] [<801a2cca>] __driver_attach+0x4a/0x78 [ 2.880000] [<801a2470>] bus_for_each_dev+0x3c/0x78 [ 2.880000] [<801a2c80>] __driver_attach+0x0/0x78 [ 2.880000] [<801a2a6a>] driver_attach+0x12/0x24 [ 2.880000] [<801a1e18>] bus_add_driver+0x88/0x1e4 [ 2.880000] [<801649fc>] kset_find_obj+0x60/0x7c [ 2.880000] [<801a2f7c>] driver_register+0x70/0x110 [ 2.880000] [<8047ee24>] i2c_pca_pf_init+0x0/0x1c [ 2.880000] [<801a3d62>] platform_driver_register+0x2e/0x4c [ 2.880000] [<8047ee24>] i2c_pca_pf_init+0x0/0x1c [ 2.880000] [<8047ee30>] i2c_pca_pf_init+0xc/0x1c [ 2.880000] [<8000221a>] do_one_initcall+0x9a/0x15c [ 2.880000] [<8046e24a>] kernel_init+0x7a/0x14c [ 2.880000] [<80002180>] do_one_initcall+0x0/0x15c [ 2.880000] [<800040a0>] kernel_thread_helper+0x8/0x14 [ 2.880000] [<8046e1d0>] kernel_init+0x0/0x14c [ 2.880000] [<80004098>] kernel_thread_helper+0x0/0x14 [ 2.880000] [ 2.880000] Code: [ 2.880000] 800b3bbe: mov.l 800b3bdc <__xlate_proc_name+0xa0/0xa4>, r4 ! 803cb578 <__func_> [ 2.880000] 800b3bc0: jsr @r0 [ 2.880000] 800b3bc2: mov r11, r5 [ 2.880000] ->800b3bc4: trapa #62 [ 2.880000] 800b3bc6: bra 800b3ba6 [ 2.880000] 800b3bc8: mov #-2, r0 [ 2.880000] 800b3bca: nop [ 2.880000] 800b3bcc: bsr 800b4518 [ 2.880000] 800b3bce: mov.b r0, @(4,r4) [ 2.880000] [ 2.880000] ---[ end trace 8decc8541dd0eb29 ]--- [ 3.160000] PCA9564/PCA9665 at 0x06000000: PCA9564 detected. [ 3.168000] PCA9564/PCA9665 at 0x06000000: Choosing the clock frequency based on index is deprecat. [ 3.176000] PCA9564/PCA9665 at 0x06000000: No reset-pin found. Chip may get stuck! 3.184000] PCA9564/PCA9665 at 0x06000000: Clock frequency is 330kHz Signed-off-by: Nobuhiro Iwamatsu <[email protected]> CC: Wolfram Sang <[email protected]> --- drivers/i2c/busses/i2c-pca-platform.c | 8 +++++--- 1 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-pca-platform.c b/drivers/i2c/busses/i2c-pca-platform.c index ef5c784..4cc3cdf 100644 --- a/drivers/i2c/busses/i2c-pca-platform.c +++ b/drivers/i2c/busses/i2c-pca-platform.c @@ -27,6 +27,8 @@ #include <asm/irq.h> +#define DRIVER_NAME "i2c-pca-platform" + struct i2c_pca_pf_data { void __iomem *reg_base; int irq; /* if 0, use polling */ @@ -171,7 +173,7 @@ static int __devinit i2c_pca_pf_probe(struct platform_device *pdev) i2c->adap.nr = pdev->id >= 0 ? pdev->id : 0; i2c->adap.owner = THIS_MODULE; snprintf(i2c->adap.name, sizeof(i2c->adap.name), - "PCA9564/PCA9665 at 0x%08lx", + DRIVER_NAME " at 0x%08lx", (unsigned long) res->start); i2c->adap.algo_data = &i2c->algo_data; i2c->adap.dev.parent = &pdev->dev; @@ -250,7 +252,7 @@ e_remap: e_alloc: release_mem_region(res->start, resource_size(res)); e_print: - printk(KERN_ERR "Registering PCA9564/PCA9665 FAILED! (%d)\n", ret); + printk(KERN_ERR "Registering " DRIVER_NAME " FAILED! (%d)\n", ret); return ret; } @@ -278,7 +280,7 @@ static struct platform_driver i2c_pca_pf_driver = { .probe = i2c_pca_pf_probe, .remove = __devexit_p(i2c_pca_pf_remove), .driver = { - .name = "i2c-pca-platform", + .name = DRIVER_NAME, .owner = THIS_MODULE, }, }; -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
