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 <nobuhiro.iwamatsu.yj@xxxxxxxxxxx>
CC: Wolfram Sang <w.sang@xxxxxxxxxxxxxx>
---
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
--
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