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i2c: Add support for device alias names

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Based on earlier work by Jon Smirl and Jochen Friedrich.

This patch allows new-style i2c chip drivers to have alias names using
the official kernel aliasing system and MODULE_DEVICE_TABLE(). At this
point, the old i2c driver binding scheme (driver_name/type) is still
supported.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Jochen Friedrich <jochen@scram.de>
Cc: Jon Smirl <jonsmirl@gmail.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
This commit is contained in:
Jean Delvare 2008-04-29 23:11:39 +02:00 • committed by Jean Delvare
parent ee56d97742
commit d2653e9273
43 changed files with 146 additions and 54 deletions
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13
scripts/mod/file2alias.c
View file

@ -576,6 +576,15 @@ static int do_virtio_entry(const char *filename, struct virtio_device_id *id,
return 1;
}
/* Looks like: i2c:S */
static int do_i2c_entry(const char *filename, struct i2c_device_id *id,
char *alias)
{
sprintf(alias, I2C_MODULE_PREFIX "%s", id->name);
return 1;
}
/* Ignore any prefix, eg. v850 prepends _ */
static inline int sym_is(const char *symbol, const char *name)
{
@ -704,6 +713,10 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
do_table(symval, sym->st_size,
sizeof(struct virtio_device_id), "virtio",
do_virtio_entry, mod);
else if (sym_is(symname, "__mod_i2c_device_table"))
do_table(symval, sym->st_size,
sizeof(struct i2c_device_id), "i2c",
do_i2c_entry, mod);
free(zeros);
}