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authorMarkus Elfring <elfring@users.sourceforge.net>2024-10-11 18:10:06 +0200
committerMichael Ellerman <mpe@ellerman.id.au>2024-11-14 22:52:43 +1100
commit2e716f5cdebed2fb98cafffaf626645c2e922dbb (patch)
treec76b693a46dc783ea6226ae7c9eb94318e25cd76 /arch/powerpc
parentf20b0a03674cef555a5f48b65f81b82868b17cdd (diff)
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
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/platforms/powermac/backlight.c14
1 files changed, 3 insertions, 11 deletions
diff --git a/arch/powerpc/platforms/powermac/backlight.c b/arch/powerpc/platforms/powermac/backlight.c
index 12bc01353bd3..79741370c40c 100644
--- a/arch/powerpc/platforms/powermac/backlight.c
+++ b/arch/powerpc/platforms/powermac/backlight.c
@@ -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)