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-rw-r--r--dts/Bindings/gpio/abilis,tb10x-gpio.txt2
-rw-r--r--dts/Bindings/gpio/gpio-axp209.txt49
-rw-r--r--dts/Bindings/gpio/gpio-stp-xway.txt2
-rw-r--r--dts/Bindings/gpio/gpio.txt2
-rw-r--r--dts/Bindings/gpio/renesas,gpio-rcar.txt2
5 files changed, 51 insertions, 6 deletions
diff --git a/dts/Bindings/gpio/abilis,tb10x-gpio.txt b/dts/Bindings/gpio/abilis,tb10x-gpio.txt
index 00611aceed..a25c87b650 100644
--- a/dts/Bindings/gpio/abilis,tb10x-gpio.txt
+++ b/dts/Bindings/gpio/abilis,tb10x-gpio.txt
@@ -21,7 +21,7 @@ Documentation/devicetree/bindings/gpio/gpio.txt
Example:
- gpioa: gpio@FF140000 {
+ gpioa: gpio@ff140000 {
compatible = "abilis,tb10x-gpio";
interrupt-controller;
#interrupt-cells = <1>;
diff --git a/dts/Bindings/gpio/gpio-axp209.txt b/dts/Bindings/gpio/gpio-axp209.txt
index a6611304dd..fc42b2caa0 100644
--- a/dts/Bindings/gpio/gpio-axp209.txt
+++ b/dts/Bindings/gpio/gpio-axp209.txt
@@ -1,10 +1,17 @@
-AXP209 GPIO controller
+AXP209 GPIO & pinctrl controller
This driver follows the usual GPIO bindings found in
Documentation/devicetree/bindings/gpio/gpio.txt
+This driver follows the usual pinctrl bindings found in
+Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+
+This driver employs the per-pin muxing pattern.
+
Required properties:
-- compatible: Should be "x-powers,axp209-gpio"
+- compatible: Should be one of:
+ - "x-powers,axp209-gpio"
+ - "x-powers,axp813-gpio"
- #gpio-cells: Should be two. The first cell is the pin number and the
second is the GPIO flags.
- gpio-controller: Marks the device node as a GPIO controller.
@@ -28,3 +35,41 @@ axp209: pmic@34 {
#gpio-cells = <2>;
};
};
+
+The GPIOs can be muxed to other functions and therefore, must be a subnode of
+axp_gpio.
+
+Example:
+
+&axp_gpio {
+ gpio0_adc: gpio0-adc {
+ pins = "GPIO0";
+ function = "adc";
+ };
+};
+
+&example_node {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio0_adc>;
+};
+
+GPIOs and their functions
+-------------------------
+
+Each GPIO is independent from the other (i.e. GPIO0 in gpio_in function does
+not force GPIO1 and GPIO2 to be in gpio_in function as well).
+
+axp209
+------
+GPIO | Functions
+------------------------
+GPIO0 | gpio_in, gpio_out, ldo, adc
+GPIO1 | gpio_in, gpio_out, ldo, adc
+GPIO2 | gpio_in, gpio_out
+
+axp813
+------
+GPIO | Functions
+------------------------
+GPIO0 | gpio_in, gpio_out, ldo, adc
+GPIO1 | gpio_in, gpio_out, ldo
diff --git a/dts/Bindings/gpio/gpio-stp-xway.txt b/dts/Bindings/gpio/gpio-stp-xway.txt
index 854de130a9..78458adbf4 100644
--- a/dts/Bindings/gpio/gpio-stp-xway.txt
+++ b/dts/Bindings/gpio/gpio-stp-xway.txt
@@ -27,7 +27,7 @@ Optional properties:
Example:
-gpio1: stp@E100BB0 {
+gpio1: stp@e100bb0 {
compatible = "lantiq,gpio-stp-xway";
reg = <0xE100BB0 0x40>;
#gpio-cells = <2>;
diff --git a/dts/Bindings/gpio/gpio.txt b/dts/Bindings/gpio/gpio.txt
index 802402f6cc..b5de08e3b1 100644
--- a/dts/Bindings/gpio/gpio.txt
+++ b/dts/Bindings/gpio/gpio.txt
@@ -290,7 +290,7 @@ pins 50..69.
Example 2:
- gpio_pio_i: gpio-controller@14B0 {
+ gpio_pio_i: gpio-controller@14b0 {
#gpio-cells = <2>;
compatible = "fsl,qe-pario-bank-e", "fsl,qe-pario-bank";
reg = <0x1480 0x18>;
diff --git a/dts/Bindings/gpio/renesas,gpio-rcar.txt b/dts/Bindings/gpio/renesas,gpio-rcar.txt
index a7ac460ad6..9474138d77 100644
--- a/dts/Bindings/gpio/renesas,gpio-rcar.txt
+++ b/dts/Bindings/gpio/renesas,gpio-rcar.txt
@@ -5,7 +5,7 @@ Required Properties:
- compatible: should contain one or more of the following:
- "renesas,gpio-r8a7743": for R8A7743 (RZ/G1M) compatible GPIO controller.
- "renesas,gpio-r8a7745": for R8A7745 (RZ/G1E) compatible GPIO controller.
- - "renesas,gpio-r8a7778": for R8A7778 (R-Mobile M1) compatible GPIO controller.
+ - "renesas,gpio-r8a7778": for R8A7778 (R-Car M1) compatible GPIO controller.
- "renesas,gpio-r8a7779": for R8A7779 (R-Car H1) compatible GPIO controller.
- "renesas,gpio-r8a7790": for R8A7790 (R-Car H2) compatible GPIO controller.
- "renesas,gpio-r8a7791": for R8A7791 (R-Car M2-W) compatible GPIO controller.