From: Maxime Ripard <[email protected]> The Allwinner SoCs have an embedded GPADC that is doing thermal reading as well, supported in Linux, with a matching Device Tree binding.
Now that we have the DT validation in place, let's convert the device tree bindings for that controller over to a YAML schemas. Signed-off-by: Maxime Ripard <[email protected]> --- .../iio/adc/allwinner,sun8i-a33-ths.yaml | 43 +++++++++++ .../bindings/mfd/allwinner,sun4i-a10-ts.yaml | 76 +++++++++++++++++++ .../devicetree/bindings/mfd/sun4i-gpadc.txt | 59 -------------- 3 files changed, 119 insertions(+), 59 deletions(-) create mode 100644 Documentation/devicetree/bindings/iio/adc/allwinner,sun8i-a33-ths.yaml create mode 100644 Documentation/devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml delete mode 100644 Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt diff --git a/Documentation/devicetree/bindings/iio/adc/allwinner,sun8i-a33-ths.yaml b/Documentation/devicetree/bindings/iio/adc/allwinner,sun8i-a33-ths.yaml new file mode 100644 index 000000000000..d74962c0f5ae --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/allwinner,sun8i-a33-ths.yaml @@ -0,0 +1,43 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/allwinner,sun8i-a33-ths.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner A33 Thermal Sensor Device Tree Bindings + +maintainers: + - Chen-Yu Tsai <[email protected]> + - Maxime Ripard <[email protected]> + +properties: + "#io-channel-cells": + const: 0 + + "#thermal-sensor-cells": + const: 0 + + compatible: + const: allwinner,sun8i-a33-ths + + reg: + maxItems: 1 + +required: + - "#io-channel-cells" + - "#thermal-sensor-cells" + - compatible + - reg + +additionalProperties: false + +examples: + - | + ths: ths@1c25000 { + compatible = "allwinner,sun8i-a33-ths"; + reg = <0x01c25000 0x100>; + #thermal-sensor-cells = <0>; + #io-channel-cells = <0>; + }; + +... diff --git a/Documentation/devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml b/Documentation/devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml new file mode 100644 index 000000000000..4b1a09acb98b --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml @@ -0,0 +1,76 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/allwinner,sun4i-a10-ts.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner A10 Resistive Touchscreen Controller Device Tree Bindings + +maintainers: + - Chen-Yu Tsai <[email protected]> + - Maxime Ripard <[email protected]> + +properties: + "#thermal-sensor-cells": + const: 0 + + compatible: + enum: + - allwinner,sun4i-a10-ts + - allwinner,sun5i-a13-ts + - allwinner,sun6i-a31-ts + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + allwinner,ts-attached: + $ref: /schemas/types.yaml#/definitions/flag + description: A touchscreen is attached to the controller + + allwinner,tp-sensitive-adjust: + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - minimum: 0 + maximum: 15 + default: 15 + description: Sensitivity of pen down detection + + allwinner,filter-type: + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - minimum: 0 + maximum: 3 + default: 1 + description: | + Select median and averaging filter. Sample used for median / + averaging filter: + 0: 4/2 + 1: 5/3 + 2: 8/4 + 3: 16/8 + +required: + - "#thermal-sensor-cells" + - compatible + - reg + - interrupts + +additionalProperties: false + +examples: + - | + rtp: rtp@1c25000 { + compatible = "allwinner,sun4i-a10-ts"; + reg = <0x01c25000 0x100>; + interrupts = <29>; + allwinner,ts-attached; + #thermal-sensor-cells = <0>; + /* sensitive/noisy touch panel */ + allwinner,tp-sensitive-adjust = <0>; + allwinner,filter-type = <3>; + }; + +... diff --git a/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt deleted file mode 100644 index 86dd8191b04c..000000000000 --- a/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt +++ /dev/null @@ -1,59 +0,0 @@ -Allwinner SoCs' GPADC Device Tree bindings ------------------------------------------- -The Allwinner SoCs all have an ADC that can also act as a thermal sensor -and sometimes as a touchscreen controller. - -Required properties: - - compatible: "allwinner,sun8i-a33-ths", - - reg: mmio address range of the chip, - - #thermal-sensor-cells: shall be 0, - - #io-channel-cells: shall be 0, - -Example: - ths: ths@1c25000 { - compatible = "allwinner,sun8i-a33-ths"; - reg = <0x01c25000 0x100>; - #thermal-sensor-cells = <0>; - #io-channel-cells = <0>; - }; - -sun4i, sun5i and sun6i SoCs are also supported via the older binding: - -sun4i resistive touchscreen controller --------------------------------------- - -Required properties: - - compatible: "allwinner,sun4i-a10-ts", "allwinner,sun5i-a13-ts" or - "allwinner,sun6i-a31-ts" - - reg: mmio address range of the chip - - interrupts: interrupt to which the chip is connected - - #thermal-sensor-cells: shall be 0 - -Optional properties: - - allwinner,ts-attached : boolean indicating that an actual touchscreen - is attached to the controller - - allwinner,tp-sensitive-adjust : integer (4 bits) - adjust sensitivity of pen down detection - between 0 (least sensitive) and 15 - (defaults to 15) - - allwinner,filter-type : integer (2 bits) - select median and averaging filter - samples used for median / averaging filter - 0: 4/2 - 1: 5/3 - 2: 8/4 - 3: 16/8 - (defaults to 1) - -Example: - - rtp: rtp@1c25000 { - compatible = "allwinner,sun4i-a10-ts"; - reg = <0x01c25000 0x100>; - interrupts = <29>; - allwinner,ts-attached; - #thermal-sensor-cells = <0>; - /* sensitive/noisy touch panel */ - allwinner,tp-sensitive-adjust = <0>; - allwinner,filter-type = <3>; - }; -- 2.21.0
