2020-01-07 13:10:25

by Benjamin GAIGNARD

[permalink] [raw]
Subject: [PATCH 2/2] dt-bindings: touchscreen: Convert Goodix touchscreen to json-schema

Convert the Goodix binding to DT schema format using json-schema

Signed-off-by: Benjamin Gaignard <[email protected]>
---
.../bindings/input/touchscreen/goodix.txt | 50 ----------------
.../bindings/input/touchscreen/goodix.yaml | 69 ++++++++++++++++++++++
2 files changed, 69 insertions(+), 50 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/input/touchscreen/goodix.txt
create mode 100644 Documentation/devicetree/bindings/input/touchscreen/goodix.yaml

diff --git a/Documentation/devicetree/bindings/input/touchscreen/goodix.txt b/Documentation/devicetree/bindings/input/touchscreen/goodix.txt
deleted file mode 100644
index fc03ea4cf5ab..000000000000
--- a/Documentation/devicetree/bindings/input/touchscreen/goodix.txt
+++ /dev/null
@@ -1,50 +0,0 @@
-Device tree bindings for Goodix GT9xx series touchscreen controller
-
-Required properties:
-
- - compatible : Should be "goodix,gt1151"
- or "goodix,gt5663"
- or "goodix,gt5688"
- or "goodix,gt911"
- or "goodix,gt9110"
- or "goodix,gt912"
- or "goodix,gt927"
- or "goodix,gt9271"
- or "goodix,gt928"
- or "goodix,gt967"
- - reg : I2C address of the chip. Should be 0x5d or 0x14
- - interrupts : Interrupt to which the chip is connected
-
-Optional properties:
-
- - irq-gpios : GPIO pin used for IRQ. The driver uses the
- interrupt gpio pin as output to reset the device.
- - reset-gpios : GPIO pin used for reset
- - AVDD28-supply : Analog power supply regulator on AVDD28 pin
- - VDDIO-supply : GPIO power supply regulator on VDDIO pin
- - touchscreen-inverted-x
- - touchscreen-inverted-y
- - touchscreen-size-x
- - touchscreen-size-y
- - touchscreen-swapped-x-y
-
-The touchscreen-* properties are documented in touchscreen.txt in this
-directory.
-
-Example:
-
- i2c@00000000 {
- /* ... */
-
- gt928@5d {
- compatible = "goodix,gt928";
- reg = <0x5d>;
- interrupt-parent = <&gpio>;
- interrupts = <0 0>;
-
- irq-gpios = <&gpio1 0 0>;
- reset-gpios = <&gpio1 1 0>;
- };
-
- /* ... */
- };
diff --git a/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml b/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
new file mode 100644
index 000000000000..05b52d359ac5
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/goodix.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Goodix GT9xx series touchscreen controller Bindings
+
+maintainers:
+ - Dmitry Torokhov <[email protected]>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ enum:
+ - goodix,gt1151
+ - goodix,gt5663
+ - goodix,gt5688
+ - goodix,gt911
+ - goodix,gt9110
+ - goodix,gt912
+ - goodix,gt927
+ - goodix,gt9271
+ - goodix,gt928
+ - goodix,gt967
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ irq-gpios:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+
+ AVDD28-supply:
+ description: Analog power supply regulator on AVDD28 pin
+
+ VDDIO-supply:
+ description: GPIO power supply regulator on VDDIO pin
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+examples:
+- |
+ i2c@00000000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ gt928@5d {
+ compatible = "goodix,gt928";
+ reg = <0x5d>;
+ interrupt-parent = <&gpio>;
+ interrupts = <0 0>;
+ irq-gpios = <&gpio1 0 0>;
+ reset-gpios = <&gpio1 1 0>;
+ };
+ };
+
+...
--
2.15.0


2020-01-07 13:39:54

by Bastien Nocera

[permalink] [raw]
Subject: Re: [PATCH 2/2] dt-bindings: touchscreen: Convert Goodix touchscreen to json-schema

On Tue, 2020-01-07 at 14:09 +0100, Benjamin Gaignard wrote:
> Convert the Goodix binding to DT schema format using json-schema

I don't have an opinion on the migration itself, but this really should
not lose any of the descriptions that were in the old text file.

> Signed-off-by: Benjamin Gaignard <[email protected]>
> ---
> .../bindings/input/touchscreen/goodix.txt | 50 ------------
> ----
> .../bindings/input/touchscreen/goodix.yaml | 69
> ++++++++++++++++++++++
> 2 files changed, 69 insertions(+), 50 deletions(-)
> delete mode 100644
> Documentation/devicetree/bindings/input/touchscreen/goodix.txt
> create mode 100644
> Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
>
> diff --git
> a/Documentation/devicetree/bindings/input/touchscreen/goodix.txt
> b/Documentation/devicetree/bindings/input/touchscreen/goodix.txt
> deleted file mode 100644
> index fc03ea4cf5ab..000000000000
> --- a/Documentation/devicetree/bindings/input/touchscreen/goodix.txt
> +++ /dev/null
> @@ -1,50 +0,0 @@
> -Device tree bindings for Goodix GT9xx series touchscreen controller
> -
> -Required properties:
> -
> - - compatible : Should be "goodix,gt1151"
> - or "goodix,gt5663"
> - or "goodix,gt5688"
> - or "goodix,gt911"
> - or "goodix,gt9110"
> - or "goodix,gt912"
> - or "goodix,gt927"
> - or "goodix,gt9271"
> - or "goodix,gt928"
> - or "goodix,gt967"
> - - reg : I2C address of the chip. Should be
> 0x5d or 0x14
> - - interrupts : Interrupt to which the chip is
> connected
> -
> -Optional properties:
> -
> - - irq-gpios : GPIO pin used for IRQ. The driver uses the
> - interrupt gpio pin as output to reset the
> device.
> - - reset-gpios : GPIO pin used for reset
> - - AVDD28-supply : Analog power supply regulator on AVDD28 pin
> - - VDDIO-supply : GPIO power supply regulator on VDDIO
> pin
> - - touchscreen-inverted-x
> - - touchscreen-inverted-y
> - - touchscreen-size-x
> - - touchscreen-size-y
> - - touchscreen-swapped-x-y
> -
> -The touchscreen-* properties are documented in touchscreen.txt in
> this
> -directory.
> -
> -Example:
> -
> - i2c@00000000 {
> - /* ... */
> -
> - gt928@5d {
> - compatible = "goodix,gt928";
> - reg = <0x5d>;
> - interrupt-parent = <&gpio>;
> - interrupts = <0 0>;
> -
> - irq-gpios = <&gpio1 0 0>;
> - reset-gpios = <&gpio1 1 0>;
> - };
> -
> - /* ... */
> - };
> diff --git
> a/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
> b/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
> new file mode 100644
> index 000000000000..05b52d359ac5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
> @@ -0,0 +1,69 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/input/touchscreen/goodix.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Goodix GT9xx series touchscreen controller Bindings
> +
> +maintainers:
> + - Dmitry Torokhov <[email protected]>
> +
> +allOf:
> + - $ref: touchscreen.yaml#
> +
> +properties:
> + compatible:
> + enum:
> + - goodix,gt1151
> + - goodix,gt5663
> + - goodix,gt5688
> + - goodix,gt911
> + - goodix,gt9110
> + - goodix,gt912
> + - goodix,gt927
> + - goodix,gt9271
> + - goodix,gt928
> + - goodix,gt967
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + irq-gpios:
> + maxItems: 1
> +
> + reset-gpios:
> + maxItems: 1
> +
> + AVDD28-supply:
> + description: Analog power supply regulator on AVDD28 pin
> +
> + VDDIO-supply:
> + description: GPIO power supply regulator on VDDIO pin
> +
> +additionalProperties: false
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> +
> +examples:
> +- |
> + i2c@00000000 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + gt928@5d {
> + compatible = "goodix,gt928";
> + reg = <0x5d>;
> + interrupt-parent = <&gpio>;
> + interrupts = <0 0>;
> + irq-gpios = <&gpio1 0 0>;
> + reset-gpios = <&gpio1 1 0>;
> + };
> + };
> +
> +...

2020-01-07 17:57:44

by Rob Herring

[permalink] [raw]
Subject: Re: [PATCH 2/2] dt-bindings: touchscreen: Convert Goodix touchscreen to json-schema

On Tue, Jan 7, 2020 at 7:09 AM Benjamin Gaignard
<[email protected]> wrote:
>
> Convert the Goodix binding to DT schema format using json-schema
>
> Signed-off-by: Benjamin Gaignard <[email protected]>
> ---
> .../bindings/input/touchscreen/goodix.txt | 50 ----------------
> .../bindings/input/touchscreen/goodix.yaml | 69 ++++++++++++++++++++++
> 2 files changed, 69 insertions(+), 50 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/input/touchscreen/goodix.txt
> create mode 100644 Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
>
> diff --git a/Documentation/devicetree/bindings/input/touchscreen/goodix.txt b/Documentation/devicetree/bindings/input/touchscreen/goodix.txt
> deleted file mode 100644
> index fc03ea4cf5ab..000000000000
> --- a/Documentation/devicetree/bindings/input/touchscreen/goodix.txt
> +++ /dev/null
> @@ -1,50 +0,0 @@
> -Device tree bindings for Goodix GT9xx series touchscreen controller
> -
> -Required properties:
> -
> - - compatible : Should be "goodix,gt1151"
> - or "goodix,gt5663"
> - or "goodix,gt5688"
> - or "goodix,gt911"
> - or "goodix,gt9110"
> - or "goodix,gt912"
> - or "goodix,gt927"
> - or "goodix,gt9271"
> - or "goodix,gt928"
> - or "goodix,gt967"
> - - reg : I2C address of the chip. Should be 0x5d or 0x14
> - - interrupts : Interrupt to which the chip is connected
> -
> -Optional properties:
> -
> - - irq-gpios : GPIO pin used for IRQ. The driver uses the
> - interrupt gpio pin as output to reset the device.
> - - reset-gpios : GPIO pin used for reset
> - - AVDD28-supply : Analog power supply regulator on AVDD28 pin
> - - VDDIO-supply : GPIO power supply regulator on VDDIO pin
> - - touchscreen-inverted-x
> - - touchscreen-inverted-y
> - - touchscreen-size-x
> - - touchscreen-size-y
> - - touchscreen-swapped-x-y
> -
> -The touchscreen-* properties are documented in touchscreen.txt in this
> -directory.
> -
> -Example:
> -
> - i2c@00000000 {
> - /* ... */
> -
> - gt928@5d {
> - compatible = "goodix,gt928";
> - reg = <0x5d>;
> - interrupt-parent = <&gpio>;
> - interrupts = <0 0>;
> -
> - irq-gpios = <&gpio1 0 0>;
> - reset-gpios = <&gpio1 1 0>;
> - };
> -
> - /* ... */
> - };
> diff --git a/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml b/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
> new file mode 100644
> index 000000000000..05b52d359ac5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
> @@ -0,0 +1,69 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/input/touchscreen/goodix.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Goodix GT9xx series touchscreen controller Bindings
> +
> +maintainers:
> + - Dmitry Torokhov <[email protected]>
> +
> +allOf:
> + - $ref: touchscreen.yaml#
> +
> +properties:
> + compatible:
> + enum:
> + - goodix,gt1151
> + - goodix,gt5663
> + - goodix,gt5688
> + - goodix,gt911
> + - goodix,gt9110
> + - goodix,gt912
> + - goodix,gt927
> + - goodix,gt9271
> + - goodix,gt928
> + - goodix,gt967
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + irq-gpios:
> + maxItems: 1
> +
> + reset-gpios:
> + maxItems: 1
> +
> + AVDD28-supply:
> + description: Analog power supply regulator on AVDD28 pin
> +
> + VDDIO-supply:
> + description: GPIO power supply regulator on VDDIO pin
> +
> +additionalProperties: false

This doesn't work if you have any touchscreen properties as this
doesn't account for things referenced. You need add them in this
schema:

touchscreen-inverted-x: true

This serves 2 purposes. It prevents additional properties not defined
here and defines which of the common properties are valid for this
device.

Rob

2020-01-07 18:04:19

by Rob Herring

[permalink] [raw]
Subject: Re: [PATCH 2/2] dt-bindings: touchscreen: Convert Goodix touchscreen to json-schema

On Tue, Jan 7, 2020 at 7:38 AM Bastien Nocera <[email protected]> wrote:
>
> On Tue, 2020-01-07 at 14:09 +0100, Benjamin Gaignard wrote:
> > Convert the Goodix binding to DT schema format using json-schema
>
> I don't have an opinion on the migration itself, but this really should
> not lose any of the descriptions that were in the old text file.

To some extent, yes. Any information specific to the device should be.
Anything generic can be dropped. I see 2 cases that should be kept:

> > - - reg : I2C address of the chip. Should be
> > 0x5d or 0x14

'I2C address of the chip' can be dropped as that's every 'reg'
property for I2C devices. The addresses can be expressed as
constraints.

> > - - irq-gpios : GPIO pin used for IRQ. The driver uses the
> > - interrupt gpio pin as output to reset the
> > device.

Also useful info.

Rob