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| author | Maxime Ripard <maxime.ripard@bootlin.com> | 2019-08-13 15:47:40 +0300 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@bootlin.com> | 2019-08-23 10:14:49 +0300 |
| commit | 0988e6c2cd6cd64f7272c18fe58f3fca26b9120d (patch) | |
| tree | c7dc20be6468b4270f62f22658fc041d16208aba /Documentation/devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml | |
| parent | 652a458eb92018c5126701e721255356fdab94a9 (diff) | |
| download | linux-0988e6c2cd6cd64f7272c18fe58f3fca26b9120d.tar.xz | |
dt-bindings: mfd: Convert Allwinner GPADC bindings to a schema
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.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Diffstat (limited to 'Documentation/devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml | 76 |
1 files changed, 76 insertions, 0 deletions
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 <wens@csie.org> + - Maxime Ripard <maxime.ripard@bootlin.com> + +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>; + }; + +... |