of: Introduce of_property_read_s32_index()

Signed integers can be read from single value properties using
of_property_read_s32() but nothing exist to read signed integers
from multi-value properties.

Fix this lack adding of_property_read_s32_index().

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20260513081702.317117-2-herve.codina@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/include/linux/of.h b/include/linux/of.h
index 959786f8f1966247fdbaf4ac68d67dae5e2d4197..28153616e616a3deb9c1c90b7e51f0d4018bae66 100644 (file)
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -1476,6 +1476,13 @@ static inline int of_property_read_s32(const struct device_node *np,
        return of_property_read_u32(np, propname, (u32*) out_value);
 }
 
+static inline int of_property_read_s32_index(const struct device_node *np,
+                                            const char *propname, u32 index,
+                                            s32 *out_value)
+{
+       return of_property_read_u32_index(np, propname, index, (u32 *)out_value);
+}
+
 #define of_for_each_phandle(it, err, np, ln, cn, cc)                   \
        for (of_phandle_iterator_init((it), (np), (ln), (cn), (cc)),    \
             err = of_phandle_iterator_next(it);                        \