linux-kernel - [PATCH v4 1/3] dt-bindings: pinctrl: bcm2835-gpio: Add generic pinctrl support

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Message-Id: <1520615640-9153-2-git-send-email-matheus@castello.eng.br>
Date:   Fri,  9 Mar 2018 13:13:58 -0400
From:   Matheus Castello <matheus@...tello.eng.br>
To:     stefan.wahren@...e.com, eric@...olt.net
Cc:     linus.walleij@...aro.org, robh+dt@...nel.org, mark.rutland@....com,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Matheus Castello <matheus@...tello.eng.br>
Subject: [PATCH v4 1/3] dt-bindings: pinctrl: bcm2835-gpio: Add generic pinctrl support

Added generic pin configuration and multiplexing support,
and shoud be preferred than brcm legacy one.

Signed-off-by: Matheus Castello <matheus@...tello.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