From: Linus Walleij <linus.walleij@linaro.org>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>, linux-input@vger.kernel.org
Cc: Linus Walleij <linus.walleij@linaro.org>,
devicetree@vger.kernel.org, Henrik Rydberg <rydberg@bitmath.org>,
Rob Herring <robh@kernel.org>
Subject: [PATCH 1/2 v5] dt-bindings: touchscreen: Add CY8CTMA140 bindings
Date: Tue, 21 Apr 2020 10:06:49 +0200 [thread overview]
Message-ID: <20200421080650.25514-1-linus.walleij@linaro.org> (raw)
This adds device tree bindings for the Cypress CY8CTMA140
touchscreen.
Cc: devicetree@vger.kernel.org
Cc: Henrik Rydberg <rydberg@bitmath.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
ChangeLog v4->v5:
- Fix the unit name in the I2C controller after the building
bot complained that it cannot be at @00000000 and that it does
not contain a reg. Just call it "i2c".
ChangeLog v1->v4:
- Drop the description of 'reg', it's surplus.
- Set the I2C frequency to the span 100k to 400k instead
of hardcoding 400k.
- Collect Rob's review tag.
---
.../input/touchscreen/cypress,cy8ctma140.yaml | 72 +++++++++++++++++++
1 file changed, 72 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/touchscreen/cypress,cy8ctma140.yaml
diff --git a/Documentation/devicetree/bindings/input/touchscreen/cypress,cy8ctma140.yaml b/Documentation/devicetree/bindings/input/touchscreen/cypress,cy8ctma140.yaml
new file mode 100644
index 000000000000..8c73e5264312
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/cypress,cy8ctma140.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/cypress,cy8ctma140.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cypress CY8CTMA140 series touchscreen controller bindings
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ const: cypress,cy8ctma140
+
+ reg:
+ const: 0x20
+
+ clock-frequency:
+ description: I2C client clock frequency, defined for host
+ minimum: 100000
+ maximum: 400000
+
+ interrupts:
+ maxItems: 1
+
+ vcpin-supply:
+ description: Analog power supply regulator on VCPIN pin
+
+ vdd-supply:
+ description: Digital power supply regulator on VDD pin
+
+ touchscreen-inverted-x: true
+ touchscreen-inverted-y: true
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+ touchscreen-swapped-x-y: true
+ touchscreen-max-pressure: true
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - touchscreen-size-x
+ - touchscreen-size-y
+ - touchscreen-max-pressure
+
+examples:
+- |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ touchscreen@20 {
+ compatible = "cypress,cy8ctma140";
+ reg = <0x20>;
+ touchscreen-size-x = <480>;
+ touchscreen-size-y = <800>;
+ touchscreen-max-pressure = <255>;
+ interrupt-parent = <&gpio6>;
+ interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
+ vdd-supply = <&ab8500_ldo_aux2_reg>;
+ vcpin-supply = <&ab8500_ldo_aux2_reg>;
+ };
+ };
+
+...
--
2.21.1
next reply other threads:[~2020-04-21 8:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-21 8:06 Linus Walleij [this message]
2020-04-21 8:06 ` [PATCH 2/2 v5] Input: cy8ctma140 - add driver Linus Walleij
2020-04-23 2:05 ` Dmitry Torokhov
2020-05-06 12:32 ` Linus Walleij
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