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-rw-r--r--Documentation/devicetree/bindings/auxdisplay/arm,versatile-lcd.yaml4
-rw-r--r--Documentation/devicetree/bindings/auxdisplay/gpio-7-segment.yaml55
-rw-r--r--Documentation/devicetree/bindings/auxdisplay/hit,hd44780.yaml68
-rw-r--r--Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml54
-rw-r--r--Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml4
-rw-r--r--Documentation/devicetree/bindings/auxdisplay/maxim,max6959.yaml44
6 files changed, 165 insertions, 64 deletions
diff --git a/Documentation/devicetree/bindings/auxdisplay/arm,versatile-lcd.yaml b/Documentation/devicetree/bindings/auxdisplay/arm,versatile-lcd.yaml
index 5d02bd032a..439f7b811a 100644
--- a/Documentation/devicetree/bindings/auxdisplay/arm,versatile-lcd.yaml
+++ b/Documentation/devicetree/bindings/auxdisplay/arm,versatile-lcd.yaml
@@ -39,6 +39,6 @@ additionalProperties: false
examples:
- |
lcd@10008000 {
- compatible = "arm,versatile-lcd";
- reg = <0x10008000 0x1000>;
+ compatible = "arm,versatile-lcd";
+ reg = <0x10008000 0x1000>;
};
diff --git a/Documentation/devicetree/bindings/auxdisplay/gpio-7-segment.yaml b/Documentation/devicetree/bindings/auxdisplay/gpio-7-segment.yaml
new file mode 100644
index 0000000000..328954893c
--- /dev/null
+++ b/Documentation/devicetree/bindings/auxdisplay/gpio-7-segment.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/auxdisplay/gpio-7-segment.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: GPIO based LED segment display
+
+maintainers:
+ - Chris Packham <chris.packham@alliedtelesis.co.nz>
+
+properties:
+ compatible:
+ const: gpio-7-segment
+
+ segment-gpios:
+ description: |
+ An array of GPIOs one per segment. The first GPIO corresponds to the A
+ segment, the seventh GPIO corresponds to the G segment. Some LED blocks
+ also have a decimal point which can be specified as an optional eighth
+ segment.
+
+ -a-
+ | |
+ f b
+ | |
+ -g-
+ | |
+ e c
+ | |
+ -d- dp
+
+ minItems: 7
+ maxItems: 8
+
+required:
+ - segment-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+
+ #include <dt-bindings/gpio/gpio.h>
+
+ led-7seg {
+ compatible = "gpio-7-segment";
+ segment-gpios = <&gpio 0 GPIO_ACTIVE_LOW>,
+ <&gpio 1 GPIO_ACTIVE_LOW>,
+ <&gpio 2 GPIO_ACTIVE_LOW>,
+ <&gpio 3 GPIO_ACTIVE_LOW>,
+ <&gpio 4 GPIO_ACTIVE_LOW>,
+ <&gpio 5 GPIO_ACTIVE_LOW>,
+ <&gpio 6 GPIO_ACTIVE_LOW>;
+ };
diff --git a/Documentation/devicetree/bindings/auxdisplay/hit,hd44780.yaml b/Documentation/devicetree/bindings/auxdisplay/hit,hd44780.yaml
index 406a922a71..3ca0e9863d 100644
--- a/Documentation/devicetree/bindings/auxdisplay/hit,hd44780.yaml
+++ b/Documentation/devicetree/bindings/auxdisplay/hit,hd44780.yaml
@@ -84,42 +84,44 @@ additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
- auxdisplay {
- compatible = "hit,hd44780";
-
- data-gpios = <&hc595 0 GPIO_ACTIVE_HIGH>,
- <&hc595 1 GPIO_ACTIVE_HIGH>,
- <&hc595 2 GPIO_ACTIVE_HIGH>,
- <&hc595 3 GPIO_ACTIVE_HIGH>;
- enable-gpios = <&hc595 4 GPIO_ACTIVE_HIGH>;
- rs-gpios = <&hc595 5 GPIO_ACTIVE_HIGH>;
-
- display-height-chars = <2>;
- display-width-chars = <16>;
+ display-controller {
+ compatible = "hit,hd44780";
+
+ data-gpios = <&hc595 0 GPIO_ACTIVE_HIGH>,
+ <&hc595 1 GPIO_ACTIVE_HIGH>,
+ <&hc595 2 GPIO_ACTIVE_HIGH>,
+ <&hc595 3 GPIO_ACTIVE_HIGH>;
+ enable-gpios = <&hc595 4 GPIO_ACTIVE_HIGH>;
+ rs-gpios = <&hc595 5 GPIO_ACTIVE_HIGH>;
+
+ display-height-chars = <2>;
+ display-width-chars = <16>;
};
+
- |
#include <dt-bindings/gpio/gpio.h>
i2c {
- #address-cells = <1>;
- #size-cells = <0>;
-
- pcf8574: pcf8574@27 {
- compatible = "nxp,pcf8574";
- reg = <0x27>;
- gpio-controller;
- #gpio-cells = <2>;
- };
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pcf8574: gpio-expander@27 {
+ compatible = "nxp,pcf8574";
+ reg = <0x27>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
};
- hd44780 {
- compatible = "hit,hd44780";
- display-height-chars = <2>;
- display-width-chars = <16>;
- data-gpios = <&pcf8574 4 0>,
- <&pcf8574 5 0>,
- <&pcf8574 6 0>,
- <&pcf8574 7 0>;
- enable-gpios = <&pcf8574 2 0>;
- rs-gpios = <&pcf8574 0 0>;
- rw-gpios = <&pcf8574 1 0>;
- backlight-gpios = <&pcf8574 3 0>;
+
+ display-controller {
+ compatible = "hit,hd44780";
+ display-height-chars = <2>;
+ display-width-chars = <16>;
+ data-gpios = <&pcf8574 4 GPIO_ACTIVE_HIGH>,
+ <&pcf8574 5 GPIO_ACTIVE_HIGH>,
+ <&pcf8574 6 GPIO_ACTIVE_HIGH>,
+ <&pcf8574 7 GPIO_ACTIVE_HIGH>;
+ enable-gpios = <&pcf8574 2 GPIO_ACTIVE_HIGH>;
+ rs-gpios = <&pcf8574 0 GPIO_ACTIVE_HIGH>;
+ rw-gpios = <&pcf8574 1 GPIO_ACTIVE_HIGH>;
+ backlight-gpios = <&pcf8574 3 GPIO_ACTIVE_HIGH>;
};
diff --git a/Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml b/Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml
index be95f6b97b..b90eec2077 100644
--- a/Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml
+++ b/Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml
@@ -74,31 +74,31 @@ examples:
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
i2c {
- #address-cells = <1>;
- #size-cells = <0>;
-
- ht16k33: ht16k33@70 {
- compatible = "holtek,ht16k33";
- reg = <0x70>;
- refresh-rate-hz = <20>;
- interrupt-parent = <&gpio4>;
- interrupts = <5 (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_EDGE_RISING)>;
- debounce-delay-ms = <50>;
- linux,keymap = <MATRIX_KEY(2, 0, KEY_F6)>,
- <MATRIX_KEY(3, 0, KEY_F8)>,
- <MATRIX_KEY(4, 0, KEY_F10)>,
- <MATRIX_KEY(5, 0, KEY_F4)>,
- <MATRIX_KEY(6, 0, KEY_F2)>,
- <MATRIX_KEY(2, 1, KEY_F5)>,
- <MATRIX_KEY(3, 1, KEY_F7)>,
- <MATRIX_KEY(4, 1, KEY_F9)>,
- <MATRIX_KEY(5, 1, KEY_F3)>,
- <MATRIX_KEY(6, 1, KEY_F1)>;
-
- led {
- color = <LED_COLOR_ID_RED>;
- function = LED_FUNCTION_BACKLIGHT;
- linux,default-trigger = "backlight";
- };
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ display-controller@70 {
+ compatible = "holtek,ht16k33";
+ reg = <0x70>;
+ refresh-rate-hz = <20>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <5 (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_EDGE_RISING)>;
+ debounce-delay-ms = <50>;
+ linux,keymap = <MATRIX_KEY(2, 0, KEY_F6)>,
+ <MATRIX_KEY(3, 0, KEY_F8)>,
+ <MATRIX_KEY(4, 0, KEY_F10)>,
+ <MATRIX_KEY(5, 0, KEY_F4)>,
+ <MATRIX_KEY(6, 0, KEY_F2)>,
+ <MATRIX_KEY(2, 1, KEY_F5)>,
+ <MATRIX_KEY(3, 1, KEY_F7)>,
+ <MATRIX_KEY(4, 1, KEY_F9)>,
+ <MATRIX_KEY(5, 1, KEY_F3)>,
+ <MATRIX_KEY(6, 1, KEY_F1)>;
+
+ led {
+ color = <LED_COLOR_ID_RED>;
+ function = LED_FUNCTION_BACKLIGHT;
+ linux,default-trigger = "backlight";
};
- };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml b/Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml
index 1899b23de7..55e9831b3f 100644
--- a/Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml
+++ b/Documentation/devicetree/bindings/auxdisplay/img,ascii-lcd.yaml
@@ -50,6 +50,6 @@ additionalProperties: false
examples:
- |
lcd: lcd@17fff000 {
- compatible = "img,boston-lcd";
- reg = <0x17fff000 0x8>;
+ compatible = "img,boston-lcd";
+ reg = <0x17fff000 0x8>;
};
diff --git a/Documentation/devicetree/bindings/auxdisplay/maxim,max6959.yaml b/Documentation/devicetree/bindings/auxdisplay/maxim,max6959.yaml
new file mode 100644
index 0000000000..20dd9e8c81
--- /dev/null
+++ b/Documentation/devicetree/bindings/auxdisplay/maxim,max6959.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/auxdisplay/maxim,max6959.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MAX6958/6959 7-segment LED display controller
+
+maintainers:
+ - Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+
+description:
+ The Maxim MAX6958/6959 7-segment LED display controller provides
+ an I2C interface to up to four 7-segment LED digits. The MAX6959,
+ in comparison to MAX6958, adds input support. Type of the chip can
+ be autodetected via specific register read, and hence the features
+ may be enabled in the driver at run-time, in case they are requested
+ via Device Tree. A given hardware is simple and does not provide
+ any additional pins, such as reset or power enable.
+
+properties:
+ compatible:
+ const: maxim,max6959
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ display-controller@38 {
+ compatible = "maxim,max6959";
+ reg = <0x38>;
+ };
+ };