diff options
author | Grant Likely <grant.likely@secretlab.ca> | 2010-06-08 13:48:12 (GMT) |
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committer | Grant Likely <grant.likely@secretlab.ca> | 2010-07-05 22:14:28 (GMT) |
commit | dd27dcda37f0b1a3b674760fb411abc5c8fe309c (patch) | |
tree | f6b582fabc8b4f723f8209102665442fcba53364 /drivers/of | |
parent | d3571c3acfabb6f3a93b517b75d9b30eb7e8692e (diff) | |
download | linux-dd27dcda37f0b1a3b674760fb411abc5c8fe309c.tar.xz |
of/device: merge of_device_uevent
Merge common code between powerpc and microblaze
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
CC: Michal Simek <monstr@monstr.eu>
CC: Wolfram Sang <w.sang@pengutronix.de>
CC: Stephen Rothwell <sfr@canb.auug.org.au>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: microblaze-uclinux@itee.uq.edu.au
CC: linuxppc-dev@ozlabs.org
Diffstat (limited to 'drivers/of')
-rw-r--r-- | drivers/of/device.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/of/device.c b/drivers/of/device.c index 7d18f8e..275cc9c 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -170,3 +170,51 @@ ssize_t of_device_get_modalias(struct of_device *ofdev, return tsize; } + +/** + * of_device_uevent - Display OF related uevent information + */ +int of_device_uevent(struct device *dev, struct kobj_uevent_env *env) +{ + const char *compat; + int seen = 0, cplen, sl; + + if ((!dev) || (!dev->of_node)) + return -ENODEV; + + if (add_uevent_var(env, "OF_NAME=%s", dev->of_node->name)) + return -ENOMEM; + + if (add_uevent_var(env, "OF_TYPE=%s", dev->of_node->type)) + return -ENOMEM; + + /* Since the compatible field can contain pretty much anything + * it's not really legal to split it out with commas. We split it + * up using a number of environment variables instead. */ + + compat = of_get_property(dev->of_node, "compatible", &cplen); + while (compat && *compat && cplen > 0) { + if (add_uevent_var(env, "OF_COMPATIBLE_%d=%s", seen, compat)) + return -ENOMEM; + + sl = strlen(compat) + 1; + compat += sl; + cplen -= sl; + seen++; + } + + if (add_uevent_var(env, "OF_COMPATIBLE_N=%d", seen)) + return -ENOMEM; + + /* modalias is trickier, we add it in 2 steps */ + if (add_uevent_var(env, "MODALIAS=")) + return -ENOMEM; + + sl = of_device_get_modalias(to_of_device(dev), &env->buf[env->buflen-1], + sizeof(env->buf) - env->buflen); + if (sl >= (sizeof(env->buf) - env->buflen)) + return -ENOMEM; + env->buflen += sl; + + return 0; +} |