[PATCH v3 3/3] pinctrl: bcm2835: Update docs about generic pinctrl bindings support

[Matheus Castello <matheus@castello.eng.br>]

Now we have generic pin configuration and multiplexing support,
ahd shoud be preferred than brcm legacy one.

Signed-off-by: Matheus Castello <matheus@castello.eng.br>
---
 .../devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt b/Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt
index 2569866..58b4720 100644
--- a/Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt
+++ b/Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt
@@ -36,6 +36,25 @@ listed. In other words, a subnode that lists only a mux function implies no
 information about any pull configuration. Similarly, a subnode that lists only
 a pul parameter implies no information about the mux function.
 
+This driver supports the generic pin multiplexing and configuration
+bindings. For details on each properties, you can refer to
+./pinctrl-bindings.txt.
+
+Required sub-node properties:
+  - pins
+  - function
+
+Optional sub-node properties:
+  - bias-disable
+  - bias-pull-up
+  - bias-pull-down
+  - output-high
+  - output-low
+
+Legacy pin configuration and multiplexing binding:
+*** (Its use is deprecated, use generic multiplexing and configuration
+bindings instead)
+
 Required subnode-properties:
 - brcm,pins: An array of cells. Each cell contains the ID of a pin. Valid IDs
   are the integer GPIO IDs; 0==GPIO0, 1==GPIO1, ... 53==GPIO53.
-- 
2.7.4