Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm

[cascardo/linux.git] / Documentation / pinctrl.txt

diff --git a/Documentation/pinctrl.txt b/Documentation/pinctrl.txt
index 3b4ee53..da40efb 100644 (file)
--- a/Documentation/pinctrl.txt
+++ b/Documentation/pinctrl.txt
@@ -364,6 +364,9 @@ will get an pin number into its handled number range. Further it is also passed
 the range ID value, so that the pin controller knows which range it should
 deal with.
 
+Calling pinctrl_add_gpio_range from pinctrl driver is DEPRECATED. Please see
+section 2.1 of Documentation/devicetree/bindings/gpio/gpio.txt on how to bind
+pinctrl and gpio drivers.
 
 PINMUX interfaces
 =================
@@ -1193,4 +1196,6 @@ foo_switch()
        ...
 }
 
-The above has to be done from process context.
+The above has to be done from process context. The reservation of the pins
+will be done when the state is activated, so in effect one specific pin
+can be used by different functions at different times on a running system.