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authorAlexander Stein <alexander.stein@informatik.tu-chemnitz.de>2013-05-26 20:06:50 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-06-03 23:09:14 +0200
commit8d7bda51888d14c07cbebacc5a10be776477bb63 (patch)
treed127eacb0e8961bbafb5bb2b02e0c2c4b008a78e /drivers/w1
parentmisc/ep93xx_pwm: use kstrtol instead of strict_strtol (diff)
downloadlinux-8d7bda51888d14c07cbebacc5a10be776477bb63.tar.xz
linux-8d7bda51888d14c07cbebacc5a10be776477bb63.zip
w1: add family based automatic module loading
This patch allows the 1-wire bus to autoload the corresponding module for each slave being attached. This works similar to bluetooth protocols. Signed-off-by: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/w1')
-rw-r--r--drivers/w1/slaves/w1_ds2408.c1
-rw-r--r--drivers/w1/slaves/w1_ds2413.c1
-rw-r--r--drivers/w1/slaves/w1_ds2423.c1
-rw-r--r--drivers/w1/slaves/w1_ds2431.c1
-rw-r--r--drivers/w1/slaves/w1_ds2433.c1
-rw-r--r--drivers/w1/slaves/w1_ds2760.c1
-rw-r--r--drivers/w1/slaves/w1_ds2780.c1
-rw-r--r--drivers/w1/slaves/w1_ds2781.c1
-rw-r--r--drivers/w1/slaves/w1_ds28e04.c1
-rw-r--r--drivers/w1/slaves/w1_smem.c2
-rw-r--r--drivers/w1/slaves/w1_therm.c5
-rw-r--r--drivers/w1/w1.c2
12 files changed, 18 insertions, 0 deletions
diff --git a/drivers/w1/slaves/w1_ds2408.c b/drivers/w1/slaves/w1_ds2408.c
index e45eca1044bd..91cc2cdf02c0 100644
--- a/drivers/w1/slaves/w1_ds2408.c
+++ b/drivers/w1/slaves/w1_ds2408.c
@@ -22,6 +22,7 @@
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jean-Francois Dagenais <dagenaisj@sonatest.com>");
MODULE_DESCRIPTION("w1 family 29 driver for DS2408 8 Pin IO");
+MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_DS2408));
#define W1_F29_RETRIES 3
diff --git a/drivers/w1/slaves/w1_ds2413.c b/drivers/w1/slaves/w1_ds2413.c
index 829786252c6b..85937773a96a 100644
--- a/drivers/w1/slaves/w1_ds2413.c
+++ b/drivers/w1/slaves/w1_ds2413.c
@@ -23,6 +23,7 @@
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Mariusz Bialonczyk <manio@skyboo.net>");
MODULE_DESCRIPTION("w1 family 3a driver for DS2413 2 Pin IO");
+MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_DS2413));
#define W1_F3A_RETRIES 3
#define W1_F3A_FUNC_PIO_ACCESS_READ 0xF5
diff --git a/drivers/w1/slaves/w1_ds2423.c b/drivers/w1/slaves/w1_ds2423.c
index 40a10b5ed120..7f86aec74088 100644
--- a/drivers/w1/slaves/w1_ds2423.c
+++ b/drivers/w1/slaves/w1_ds2423.c
@@ -164,3 +164,4 @@ module_exit(w1_f1d_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Mika Laitio <lamikr@pilppa.org>");
MODULE_DESCRIPTION("w1 family 1d driver for DS2423, 4 counters and 4kb ram");
+MODULE_ALIAS("w1-family-" __stringify(W1_COUNTER_DS2423));
diff --git a/drivers/w1/slaves/w1_ds2431.c b/drivers/w1/slaves/w1_ds2431.c
index 984b30331a45..cef8605e43ec 100644
--- a/drivers/w1/slaves/w1_ds2431.c
+++ b/drivers/w1/slaves/w1_ds2431.c
@@ -310,3 +310,4 @@ module_exit(w1_f2d_fini);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Bernhard Weirich <bernhard.weirich@riedel.net>");
MODULE_DESCRIPTION("w1 family 2d driver for DS2431, 1kb EEPROM");
+MODULE_ALIAS("w1-family-" __stringify(W1_EEPROM_DS2431));
diff --git a/drivers/w1/slaves/w1_ds2433.c b/drivers/w1/slaves/w1_ds2433.c
index 85f2cdb27fa2..10cc1b6176e6 100644
--- a/drivers/w1/slaves/w1_ds2433.c
+++ b/drivers/w1/slaves/w1_ds2433.c
@@ -29,6 +29,7 @@
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Ben Gardner <bgardner@wabtec.com>");
MODULE_DESCRIPTION("w1 family 23 driver for DS2433, 4kb EEPROM");
+MODULE_ALIAS("w1-family-" __stringify(W1_EEPROM_DS2433));
#define W1_EEPROM_SIZE 512
#define W1_PAGE_COUNT 16
diff --git a/drivers/w1/slaves/w1_ds2760.c b/drivers/w1/slaves/w1_ds2760.c
index e86a69dc411e..93719d25d849 100644
--- a/drivers/w1/slaves/w1_ds2760.c
+++ b/drivers/w1/slaves/w1_ds2760.c
@@ -203,3 +203,4 @@ module_exit(w1_ds2760_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Szabolcs Gyurko <szabolcs.gyurko@tlt.hu>");
MODULE_DESCRIPTION("1-wire Driver Dallas 2760 battery monitor chip");
+MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_DS2760));
diff --git a/drivers/w1/slaves/w1_ds2780.c b/drivers/w1/slaves/w1_ds2780.c
index 98ed9c49cf50..0cd7a27b5d6b 100644
--- a/drivers/w1/slaves/w1_ds2780.c
+++ b/drivers/w1/slaves/w1_ds2780.c
@@ -188,3 +188,4 @@ module_exit(w1_ds2780_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Clifton Barnes <cabarnes@indesign-llc.com>");
MODULE_DESCRIPTION("1-wire Driver for Maxim/Dallas DS2780 Stand-Alone Fuel Gauge IC");
+MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_DS2780));
diff --git a/drivers/w1/slaves/w1_ds2781.c b/drivers/w1/slaves/w1_ds2781.c
index 5140d7be67ab..1aba8e41ad46 100644
--- a/drivers/w1/slaves/w1_ds2781.c
+++ b/drivers/w1/slaves/w1_ds2781.c
@@ -186,3 +186,4 @@ module_exit(w1_ds2781_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Renata Sayakhova <renata@oktetlabs.ru>");
MODULE_DESCRIPTION("1-wire Driver for Maxim/Dallas DS2781 Stand-Alone Fuel Gauge IC");
+MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_DS2781));
diff --git a/drivers/w1/slaves/w1_ds28e04.c b/drivers/w1/slaves/w1_ds28e04.c
index 98117db595bb..cd30a6d95ea5 100644
--- a/drivers/w1/slaves/w1_ds28e04.c
+++ b/drivers/w1/slaves/w1_ds28e04.c
@@ -27,6 +27,7 @@
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Markus Franke <franke.m@sebakmt.com>, <franm@hrz.tu-chemnitz.de>");
MODULE_DESCRIPTION("w1 family 1C driver for DS28E04, 4kb EEPROM and PIO");
+MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_DS28E04));
/* Allow the strong pullup to be disabled, but default to enabled.
* If it was disabled a parasite powered device might not get the required
diff --git a/drivers/w1/slaves/w1_smem.c b/drivers/w1/slaves/w1_smem.c
index 84655625c870..ed4c87506def 100644
--- a/drivers/w1/slaves/w1_smem.c
+++ b/drivers/w1/slaves/w1_smem.c
@@ -34,6 +34,8 @@
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Evgeniy Polyakov <zbr@ioremap.net>");
MODULE_DESCRIPTION("Driver for 1-wire Dallas network protocol, 64bit memory family.");
+MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_SMEM_01));
+MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_SMEM_81));
static struct w1_family w1_smem_family_01 = {
.fid = W1_FAMILY_SMEM_01,
diff --git a/drivers/w1/slaves/w1_therm.c b/drivers/w1/slaves/w1_therm.c
index c1a702f8c803..8978360bd387 100644
--- a/drivers/w1/slaves/w1_therm.c
+++ b/drivers/w1/slaves/w1_therm.c
@@ -36,6 +36,11 @@
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Evgeniy Polyakov <zbr@ioremap.net>");
MODULE_DESCRIPTION("Driver for 1-wire Dallas network protocol, temperature family.");
+MODULE_ALIAS("w1-family-" __stringify(W1_THERM_DS18S20));
+MODULE_ALIAS("w1-family-" __stringify(W1_THERM_DS1822));
+MODULE_ALIAS("w1-family-" __stringify(W1_THERM_DS18B20));
+MODULE_ALIAS("w1-family-" __stringify(W1_THERM_DS1825));
+MODULE_ALIAS("w1-family-" __stringify(W1_THERM_DS28EA00));
/* Allow the strong pullup to be disabled, but default to enabled.
* If it was disabled a parasite powered device might not get the require
diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index 7ce277d2bb67..0459df843c58 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -680,6 +680,8 @@ static int w1_attach_slave_device(struct w1_master *dev, struct w1_reg_num *rn)
atomic_set(&sl->refcnt, 0);
init_completion(&sl->released);
+ request_module("w1-family-0x%0x", rn->family);
+
spin_lock(&w1_flock);
f = w1_family_registered(rn->family);
if (!f) {