X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=Documentation%2Fpinctrl.txt;h=a7929cb47e7c182392ccbd811972c63eaba19b64;hb=b244a176be746a8f20b7d2321c48dda3710049f6;hp=c0ffd30eb55eae219cc9a6606ea5b3b71cf01f63;hpb=e0ea4045bce3cee84e35746fb98946ca36781248;p=karo-tx-linux.git

diff --git a/Documentation/pinctrl.txt b/Documentation/pinctrl.txt
index c0ffd30eb55e..a7929cb47e7c 100644
--- a/Documentation/pinctrl.txt
+++ b/Documentation/pinctrl.txt
@@ -358,7 +358,12 @@ static struct pinctrl_gpio_range gpio_range = {
 	.gc = &chip;
 };
 
-In this case the pin_base property will be ignored.
+In this case the pin_base property will be ignored. If the name of a pin
+group is known, the pins and npins elements of the above structure can be
+initialised using the function pinctrl_get_group_pins(), e.g. for pin
+group "foo":
+
+pinctrl_get_group_pins(pctl, "foo", &gpio_range.pins, &gpio_range.npins);
 
 When GPIO-specific functions in the pin control subsystem are called, these
 ranges will be used to look up the appropriate pin controller by inspecting