summaryrefslogtreecommitdiff
path: root/drivers/of
diff options
context:
space:
mode:
authorMiquel Raynal <miquel.raynal@bootlin.com>2023-04-04 20:21:15 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-04-05 20:41:10 +0300
commit5c3d15e127ebfc0754cd18def7124633b6d46672 (patch)
treec35eb5cc4366762ff895b4e53661227b58e0f5e3 /drivers/of
parent2187af84e5d0062090f5e0e89281a00d0b8afa40 (diff)
downloadlinux-5c3d15e127ebfc0754cd18def7124633b6d46672.tar.xz
of: Update of_device_get_modalias()
This function only needs a "struct device_node" to work, but for convenience the author (and only user) of this helper did use a "struct device" and put it in device.c. Let's convert this helper to take a "struct device node" instead. This change asks for two additional changes: renaming it "of_modalias()" to fit the current naming, and moving it outside of device.c which will be done in a follow-up commit. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20230404172148.82422-8-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/device.c29
1 files changed, 17 insertions, 12 deletions
diff --git a/drivers/of/device.c b/drivers/of/device.c
index c91bb5899256..351c505ecb50 100644
--- a/drivers/of/device.c
+++ b/drivers/of/device.c
@@ -248,7 +248,7 @@ const void *of_device_get_match_data(const struct device *dev)
}
EXPORT_SYMBOL(of_device_get_match_data);
-static ssize_t of_device_get_modalias(const struct device *dev, char *str, ssize_t len)
+static ssize_t of_modalias(const struct device_node *np, char *str, ssize_t len)
{
const char *compat;
char *c;
@@ -256,19 +256,16 @@ static ssize_t of_device_get_modalias(const struct device *dev, char *str, ssize
ssize_t csize;
ssize_t tsize;
- if ((!dev) || (!dev->of_node) || dev->of_node_reused)
- return -ENODEV;
-
/* Name & Type */
/* %p eats all alphanum characters, so %c must be used here */
- csize = snprintf(str, len, "of:N%pOFn%c%s", dev->of_node, 'T',
- of_node_get_device_type(dev->of_node));
+ csize = snprintf(str, len, "of:N%pOFn%c%s", np, 'T',
+ of_node_get_device_type(np));
tsize = csize;
len -= csize;
if (str)
str += csize;
- of_property_for_each_string(dev->of_node, "compatible", p, compat) {
+ of_property_for_each_string(np, "compatible", p, compat) {
csize = strlen(compat) + 1;
tsize += csize;
if (csize > len)
@@ -293,7 +290,10 @@ int of_device_request_module(struct device *dev)
ssize_t size;
int ret;
- size = of_device_get_modalias(dev, NULL, 0);
+ if (!dev || !dev->of_node)
+ return -ENODEV;
+
+ size = of_modalias(dev->of_node, NULL, 0);
if (size < 0)
return size;
@@ -304,7 +304,7 @@ int of_device_request_module(struct device *dev)
if (!str)
return -ENOMEM;
- of_device_get_modalias(dev, str, size);
+ of_modalias(dev->of_node, str, size);
str[size - 1] = '\0';
ret = request_module(str);
kfree(str);
@@ -321,7 +321,12 @@ EXPORT_SYMBOL_GPL(of_device_request_module);
*/
ssize_t of_device_modalias(struct device *dev, char *str, ssize_t len)
{
- ssize_t sl = of_device_get_modalias(dev, str, len - 2);
+ ssize_t sl;
+
+ if (!dev || !dev->of_node || dev->of_node_reused)
+ return -ENODEV;
+
+ sl = of_modalias(dev->of_node, str, len - 2);
if (sl < 0)
return sl;
if (sl > len - 2)
@@ -386,8 +391,8 @@ int of_device_uevent_modalias(const struct device *dev, struct kobj_uevent_env *
if (add_uevent_var(env, "MODALIAS="))
return -ENOMEM;
- sl = of_device_get_modalias(dev, &env->buf[env->buflen-1],
- sizeof(env->buf) - env->buflen);
+ sl = of_modalias(dev->of_node, &env->buf[env->buflen-1],
+ sizeof(env->buf) - env->buflen);
if (sl < 0)
return sl;
if (sl >= (sizeof(env->buf) - env->buflen))