deleted file mode 100644
@@ -1,41 +0,0 @@
-Atmel maXTouch touchscreen/touchpad
-
-Required properties:
-- compatible:
- atmel,maxtouch
-
- The following compatibles have been used in various products but are
- deprecated:
- atmel,qt602240_ts
- atmel,atmel_mxt_ts
- atmel,atmel_mxt_tp
- atmel,mXT224
-
-- reg: The I2C address of the device
-
-- interrupts: The sink for the touchpad's IRQ output
- See ../interrupt-controller/interrupts.txt
-
-Optional properties for main touchpad device:
-
-- linux,gpio-keymap: When enabled, the SPT_GPIOPWN_T19 object sends messages
- on GPIO bit changes. An array of up to 8 entries can be provided
- indicating the Linux keycode mapped to each bit of the status byte,
- starting at the LSB. Linux keycodes are defined in
- <dt-bindings/input/input.h>.
-
- Note: the numbering of the GPIOs and the bit they start at varies between
- maXTouch devices. You must either refer to the documentation, or
- experiment to determine which bit corresponds to which input. Use
- KEY_RESERVED for unused padding values.
-
-- reset-gpios: GPIO specifier for the touchscreen's reset pin (active low)
-
-Example:
-
- touch@4b {
- compatible = "atmel,maxtouch";
- reg = <0x4b>;
- interrupt-parent = <&gpio>;
- interrupts = <TEGRA_GPIO(W, 3) IRQ_TYPE_LEVEL_LOW>;
- };
new file mode 100644
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/atmel,maxtouch.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel maXTouch touchscreen/touchpad
+
+maintainers:
+ - Nick Dyer <nick@shmanahar.org>
+ - Linus Walleij <linus.walleij@linaro.org>
+
+description: |
+ Atmel maXTouch touchscreen or touchpads such as the mXT244
+ and similar devices.
+
+properties:
+ compatible:
+ const: atmel,maxtouch
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vdda-supply:
+ description:
+ Optional regulator for the AVDD analog voltage.
+
+ vdd-supply:
+ description:
+ Optional regulator for the VDD digital voltage.
+
+ reset-gpios:
+ maxItems: 1
+ description:
+ Optional GPIO specifier for the touchscreen's reset pin
+ (active low). The line must be flagged with
+ GPIO_ACTIVE_LOW.
+
+ linux,gpio-keymap:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description: |
+ When enabled, the SPT_GPIOPWN_T19 object sends messages
+ on GPIO bit changes. An array of up to 8 entries can be provided
+ indicating the Linux keycode mapped to each bit of the status byte,
+ starting at the LSB. Linux keycodes are defined in
+ <dt-bindings/input/input.h>.
+
+ Note: the numbering of the GPIOs and the bit they start at varies
+ between maXTouch devices. You must either refer to the documentation,
+ or experiment to determine which bit corresponds to which input. Use
+ KEY_RESERVED for unused padding values.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/gpio/gpio.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ touchscreen@4a {
+ compatible = "atmel,maxtouch";
+ reg = <0x4a>;
+ interrupt-parent = <&gpio>;
+ interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
+ reset-gpios = <&gpio 27 GPIO_ACTIVE_LOW>;
+ vdda-supply = <&ab8500_ldo_aux2_reg>;
+ vdd-supply = <&ab8500_ldo_aux5_reg>;
+ };
+ };
+
+...
@@ -2966,7 +2966,7 @@ ATMEL MAXTOUCH DRIVER
M: Nick Dyer <nick@shmanahar.org>
S: Maintained
T: git git://github.com/ndyer/linux.git
-F: Documentation/devicetree/bindings/input/atmel,maxtouch.txt
+F: Documentation/devicetree/bindings/input/atmel,maxtouch.yaml
F: drivers/input/touchscreen/atmel_mxt_ts.c
ATMEL WIRELESS DRIVER
This converts the Armel MXT touchscreen bindings to YAML format and extends them with the following two properties: - vdda-supply: the optional analog supply voltage - vdd-supply: the optional digital supply voltage I also explained about the reset-gpios property that this better be flagged as active high (0) despite actually being active low, because all current device trees and drivers assume that this is the case and will actively drive the line low to assert RESET. Tested the schema with all in-tree users and they verify fine. Cc: Nick Dyer <nick@shmanahar.org> Cc: Stephan Gerhold <stephan@gerhold.net> Cc: devicetree@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- ChangeLog v1->v2: - State that the GPIO lines shall be flagged as active low. We will fix all users. --- .../bindings/input/atmel,maxtouch.txt | 41 ---------- .../bindings/input/atmel,maxtouch.yaml | 81 +++++++++++++++++++ MAINTAINERS | 2 +- 3 files changed, 82 insertions(+), 42 deletions(-) delete mode 100644 Documentation/devicetree/bindings/input/atmel,maxtouch.txt create mode 100644 Documentation/devicetree/bindings/input/atmel,maxtouch.yaml -- 2.26.2