From: Cong Yang <yangcong5@huaqin.corp-partner.google.com>
To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
conor+dt@kernel.org, dmitry.torokhov@gmail.com, jikos@kernel.org,
benjamin.tissoires@redhat.com, dianders@chromium.org,
hsinyi@google.com
Cc: linux-input@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Cong Yang <yangcong5@huaqin.corp-partner.google.com>
Subject: [PATCH v5 1/2] dt-bindings: HID: i2c-hid: ilitek: Introduce bindings for Ilitek ili9882t
Date: Fri, 9 Jun 2023 14:36:14 +0800 [thread overview]
Message-ID: <20230609063615.758676-2-yangcong5@huaqin.corp-partner.google.com> (raw)
In-Reply-To: <20230609063615.758676-1-yangcong5@huaqin.corp-partner.google.com>
The ili9882t touch screen chip same as Elan eKTH6915 controller
has a reset gpio. The difference is that ili9882t needs to use
vccio-supply instead of vcc33-supply. Doug's series[1] allows panels
and touchscreens to power on/off together, let's add a phandle for this.
[1]: https://lore.kernel.org/r/20230607215224.2067679-1-dianders@chromium.org
Signed-off-by: Cong Yang <yangcong5@huaqin.corp-partner.google.com>
---
.../bindings/input/ilitek,ili9882t.yaml | 67 +++++++++++++++++++
1 file changed, 67 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/ilitek,ili9882t.yaml
diff --git a/Documentation/devicetree/bindings/input/ilitek,ili9882t.yaml b/Documentation/devicetree/bindings/input/ilitek,ili9882t.yaml
new file mode 100644
index 000000000000..c5d9e0e919f9
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/ilitek,ili9882t.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/ilitek,ili9882t.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ilitek ili9882t touchscreen controller
+
+maintainers:
+ - Cong Yang <yangcong5@huaqin.corp-partner.google.com>
+
+description:
+ Supports the Ilitek ili9882t touchscreen controller.
+ This touchscreen controller uses the i2c-hid protocol with a reset GPIO.
+
+allOf:
+ - $ref: /schemas/input/touchscreen/touchscreen.yaml#
+
+properties:
+ compatible:
+ const: ilitek,ili9882t
+
+ reg:
+ const: 0x41
+
+ interrupts:
+ maxItems: 1
+
+ panel: true
+
+ reset-gpios:
+ maxItems: 1
+ description: Reset GPIO.
+
+ vccio-supply:
+ description: The 1.8V supply to the touchscreen.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - panel
+ - vccio-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ touchscreen: touchscreen@41 {
+ compatible = "ilitek,ili9882t";
+ reg = <0x41>;
+
+ interrupt-parent = <&pio>;
+ interrupts = <12 IRQ_TYPE_LEVEL_LOW>;
+
+ panel = <&panel>;
+ reset-gpios = <&pio 60 GPIO_ACTIVE_LOW>;
+ vccio-supply = <&mt6366_vio18_reg>;
+ };
+ };
--
2.25.1
next prev parent reply other threads:[~2023-06-09 6:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-09 6:36 [PATCH v5 0/2] Add ili9882t bindings and timing Cong Yang
2023-06-09 6:36 ` Cong Yang [this message]
2023-06-09 15:52 ` [PATCH v5 1/2] dt-bindings: HID: i2c-hid: ilitek: Introduce bindings for Ilitek ili9882t Krzysztof Kozlowski
2023-06-09 16:00 ` Krzysztof Kozlowski
2023-06-14 11:02 ` cong yang
2023-06-09 6:36 ` [PATCH v5 2/2] HID: i2c-hid: elan: Add ili9882t timing Cong Yang
2023-06-09 16:14 ` Doug Anderson
2023-06-09 16:14 ` Doug Anderson
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