powerpc/powermac: Use of_property_match_string() in pmac_has_backlight_type()

Replace an of_get_property() call by of_property_match_string()
so that this function implementation can be simplified.

Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/linuxppc-dev/d9bdc1b6-ea7e-47aa-80aa-02ae649abf72@csgroup.eu/
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/linuxppc-dev/87cyk97ufp.fsf@mail.lhotse/
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://patch.msgid.link/ede25e03-7a14-4787-ae1b-4fc9290add5a@web.de
This commit is contained in:
Markus Elfring
2024-10-11 18:10:06 +02:00
committed by Michael Ellerman
parent f20b0a0367
commit 2e716f5cde

View File

@@ -57,18 +57,10 @@ struct backlight_device *pmac_backlight;
int pmac_has_backlight_type(const char *type)
{
struct device_node* bk_node = of_find_node_by_name(NULL, "backlight");
int i = of_property_match_string(bk_node, "backlight-control", type);
if (bk_node) {
const char *prop = of_get_property(bk_node,
"backlight-control", NULL);
if (prop && strncmp(prop, type, strlen(type)) == 0) {
of_node_put(bk_node);
return 1;
}
of_node_put(bk_node);
}
return 0;
of_node_put(bk_node);
return i >= 0;
}
static void pmac_backlight_key_worker(struct work_struct *work)