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usb: typec: retimer: Use device type for matching 

Device name is not reliable so using the type instead in
retimer_fwnode_match().

This will also introduce is_typec_retimer() helper, and
remove the static keyword from the retimer device type. That
will make it accessible also in the main typec class.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20221019145552.32493-1-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Heikki Krogerus 2022-10-19 17:55:52 +03:00 committed by Greg Kroah-Hartman
parent d182bf156c
commit a84436a987
2 changed files with 6 additions and 14 deletions
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16
drivers/usb/typec/retimer.c
View File

@ -17,21 +17,9 @@
#include "class.h"
#include "retimer.h"
static bool dev_name_ends_with(struct device *dev, const char *suffix)
{
const char *name = dev_name(dev);
const int name_len = strlen(name);
const int suffix_len = strlen(suffix);
if (suffix_len > name_len)
return false;
return strcmp(name + (name_len - suffix_len), suffix) == 0;
}
static int retimer_fwnode_match(struct device *dev, const void *fwnode)
{
return device_match_fwnode(dev, fwnode) && dev_name_ends_with(dev, "-retimer");
return is_typec_retimer(dev) && device_match_fwnode(dev, fwnode);
}
static void *typec_retimer_match(struct fwnode_handle *fwnode, const char *id, void *data)
@ -97,7 +85,7 @@ static void typec_retimer_release(struct device *dev)
kfree(to_typec_retimer(dev));
}
static const struct device_type typec_retimer_dev_type = {
const struct device_type typec_retimer_dev_type = {
.name = "typec_retimer",
.release = typec_retimer_release,
};

4
drivers/usb/typec/retimer.h
View File

@ -12,4 +12,8 @@ struct typec_retimer {
#define to_typec_retimer(_dev_) container_of(_dev_, struct typec_retimer, dev)
const struct device_type typec_retimer_dev_type;
#define is_typec_retimer(dev) ((dev)->type == &typec_retimer_dev_type)
#endif /* __USB_TYPEC_RETIMER__ */