diff options
| author | NeilBrown <neilb@suse.de> | 2014-11-19 04:04:20 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-27 04:09:02 +0100 |
| commit | 4b7e4f8289c1ca60accb6c1baf31984f69bc2771 (patch) | |
| tree | cb5debd8a6f879a77a6481eba8b211d396276da5 /drivers | |
| parent | w1: avoid potential u16 overflow (diff) | |
| download | linux-4b7e4f8289c1ca60accb6c1baf31984f69bc2771.tar.xz linux-4b7e4f8289c1ca60accb6c1baf31984f69bc2771.zip | |
w1: support auto-load of w1_bq27000 module.
1/ change request_module call to zero-pad single digit
family numbers. This appears to be the intention of
the code, but not what it actually does.
This means that the alias created for W1_FAMILY_SMEM_01
might actually be useful.
2/ Define a family name for the BQ27000 battery charge monitor.
Unfortunately this is the same number as W1_FAMILY_SMEM_01
so if both a compiled on a system, one module might need to
be blacklisted.
3/ Add a MODULE_ALIAS for the bq27000.
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/w1/slaves/w1_bq27000.c | 4 | ||||
| -rw-r--r-- | drivers/w1/w1.c | 2 | ||||
| -rw-r--r-- | drivers/w1/w1_family.h | 1 |
3 files changed, 4 insertions, 3 deletions
diff --git a/drivers/w1/slaves/w1_bq27000.c b/drivers/w1/slaves/w1_bq27000.c index afbefed5f2c9..caafb1722783 100644 --- a/drivers/w1/slaves/w1_bq27000.c +++ b/drivers/w1/slaves/w1_bq27000.c @@ -88,7 +88,7 @@ static struct w1_family_ops w1_bq27000_fops = { }; static struct w1_family w1_bq27000_family = { - .fid = 1, + .fid = W1_FAMILY_BQ27000, .fops = &w1_bq27000_fops, }; @@ -111,7 +111,7 @@ module_exit(w1_bq27000_exit); module_param(F_ID, int, S_IRUSR); MODULE_PARM_DESC(F_ID, "1-wire slave FID for BQ device"); - +MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_BQ27000)); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Texas Instruments Ltd"); MODULE_DESCRIPTION("HDQ/1-wire slave driver bq27000 battery monitor chip"); diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c index 592f7edc671e..181f41cb960b 100644 --- a/drivers/w1/w1.c +++ b/drivers/w1/w1.c @@ -727,7 +727,7 @@ int w1_attach_slave_device(struct w1_master *dev, struct w1_reg_num *rn) /* slave modules need to be loaded in a context with unlocked mutex */ mutex_unlock(&dev->mutex); - request_module("w1-family-0x%0x", rn->family); + request_module("w1-family-0x%02x", rn->family); mutex_lock(&dev->mutex); spin_lock(&w1_flock); diff --git a/drivers/w1/w1_family.h b/drivers/w1/w1_family.h index 0d18365b61ad..ed5dcb80a1f7 100644 --- a/drivers/w1/w1_family.h +++ b/drivers/w1/w1_family.h @@ -27,6 +27,7 @@ #include <linux/atomic.h> #define W1_FAMILY_DEFAULT 0 +#define W1_FAMILY_BQ27000 0x01 #define W1_FAMILY_SMEM_01 0x01 #define W1_FAMILY_SMEM_81 0x81 #define W1_THERM_DS18S20 0x10 |