X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=arch%2Fpowerpc%2Fkernel%2Frtas.c;h=fdfe14c4bdefc735640745625cb559fc4908a2fa;hb=4c098bcd55fad34dcf224bf8343db6a9ac58fc68;hp=1f8505c235482c5fea77a9f3fd1ec175a526a202;hpb=429b022af41108f6942d72547592b1d30e9a51f0;p=linux-2.6-omap-h63xx.git

diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 1f8505c2354..fdfe14c4bde 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -566,6 +566,32 @@ int rtas_get_sensor(int sensor, int index, int *state)
 }
 EXPORT_SYMBOL(rtas_get_sensor);
 
+bool rtas_indicator_present(int token, int *maxindex)
+{
+	int proplen, count, i;
+	const struct indicator_elem {
+		u32 token;
+		u32 maxindex;
+	} *indicators;
+
+	indicators = of_get_property(rtas.dev, "rtas-indicators", &proplen);
+	if (!indicators)
+		return false;
+
+	count = proplen / sizeof(struct indicator_elem);
+
+	for (i = 0; i < count; i++) {
+		if (indicators[i].token != token)
+			continue;
+		if (maxindex)
+			*maxindex = indicators[i].maxindex;
+		return true;
+	}
+
+	return false;
+}
+EXPORT_SYMBOL(rtas_indicator_present);
+
 int rtas_set_indicator(int indicator, int index, int new_value)
 {
 	int token = rtas_token("set-indicator");