[PATCH v6 1/2] dt-bindings: input: i2c-hid: Introduce FocalTech FT8112

[PATCH v6 1/2] dt-bindings: input: i2c-hid: Introduce FocalTech FT8112

[daniel_peng]

From: Daniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>

Create new binding file for the FocalTech FT8112 due to
new touchscreen chip. Confirm its compatible, reg for the
device via vendor, and set the interrupt and reset gpio
to map for Skywalker platform.
FocalTech FT8112 also uses vcc33/vccio power supply.

Signed-off-by: Daniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>
---

Changes in v6:
- Remove the commit description for the incorrect section.

 .../bindings/input/focaltech,ft8112.yaml      | 66 +++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/focaltech,ft8112.yaml

diff --git a/Documentation/devicetree/bindings/input/focaltech,ft8112.yaml b/Documentation/devicetree/bindings/input/focaltech,ft8112.yaml
new file mode 100644
index 000000000000..197f30b14d45
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/focaltech,ft8112.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/focaltech,ft8112.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: FocalTech FT8112 touchscreen controller
+
+maintainers:
+  - Daniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>
+
+description:
+  Supports the FocalTech FT8112 touchscreen controller.
+  This touchscreen controller uses the i2c-hid protocol with a reset GPIO.
+
+allOf:
+  - $ref: /schemas/input/touchscreen/touchscreen.yaml#
+
+properties:
+  compatible:
+    enum:
+      - focaltech,ft8112
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  panel: true
+
+  reset-gpios:
+    maxItems: 1
+
+  vcc33-supply: true
+
+  vccio-supply: true
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - vcc33-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@38 {
+        compatible = "focaltech,ft8112";
+        reg = <0x38>;
+
+        interrupt-parent = <&pio>;
+        interrupts = <15 IRQ_TYPE_LEVEL_LOW>;
+
+        reset-gpios = <&pio 126 GPIO_ACTIVE_LOW>;
+        vcc33-supply = <&pp3300_tchscr_x>;
+      };
+    };
-- 
2.34.1

[PATCH v6 2/2] HID: i2c-hid: Add FocalTech FT8112

[daniel_peng]

From: Daniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>

Information for touchscreen model HKO/RB116AS01-2 as below:
- HID :FTSC1000
- slave address:0X38
- Interface:HID over I2C
- Touch control lC:FT8112
- I2C ID: PNP0C50

Signed-off-by: Daniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>
---

Changes in v6:
- No changed with the v5 due to relation chain.

 drivers/hid/i2c-hid/i2c-hid-of-elan.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/hid/i2c-hid/i2c-hid-of-elan.c b/drivers/hid/i2c-hid/i2c-hid-of-elan.c
index 0215f217f6d8..b81fcc6ff49e 100644
--- a/drivers/hid/i2c-hid/i2c-hid-of-elan.c
+++ b/drivers/hid/i2c-hid/i2c-hid-of-elan.c
@@ -168,6 +168,13 @@ static const struct elan_i2c_hid_chip_data elan_ekth6a12nay_chip_data = {
 	.power_after_backlight = true,
 };
 
+static const struct elan_i2c_hid_chip_data focaltech_ft8112_chip_data = {
+	.post_power_delay_ms = 10,
+	.post_gpio_reset_on_delay_ms = 150,
+	.hid_descriptor_address = 0x0001,
+	.main_supply_name = "vcc33",
+};
+
 static const struct elan_i2c_hid_chip_data ilitek_ili9882t_chip_data = {
 	.post_power_delay_ms = 1,
 	.post_gpio_reset_on_delay_ms = 200,
@@ -191,6 +198,7 @@ static const struct elan_i2c_hid_chip_data ilitek_ili2901_chip_data = {
 static const struct of_device_id elan_i2c_hid_of_match[] = {
 	{ .compatible = "elan,ekth6915", .data = &elan_ekth6915_chip_data },
 	{ .compatible = "elan,ekth6a12nay", .data = &elan_ekth6a12nay_chip_data },
+	{ .compatible = "focaltech,ft8112", .data = &focaltech_ft8112_chip_data },
 	{ .compatible = "ilitek,ili9882t", .data = &ilitek_ili9882t_chip_data },
 	{ .compatible = "ilitek,ili2901", .data = &ilitek_ili2901_chip_data },
 	{ }
-- 
2.34.1

Re: [PATCH v6 1/2] dt-bindings: input: i2c-hid: Introduce FocalTech FT8112

[Rob Herring (Arm)]

On Mon, 17 Nov 2025 17:40:40 +0800, daniel_peng@pegatron.corp-partner.google.com wrote:
> From: Daniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>
> 
> Create new binding file for the FocalTech FT8112 due to
> new touchscreen chip. Confirm its compatible, reg for the
> device via vendor, and set the interrupt and reset gpio
> to map for Skywalker platform.
> FocalTech FT8112 also uses vcc33/vccio power supply.
> 
> Signed-off-by: Daniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>
> ---
> 
> Changes in v6:
> - Remove the commit description for the incorrect section.
> 
>  .../bindings/input/focaltech,ft8112.yaml      | 66 +++++++++++++++++++
>  1 file changed, 66 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/input/focaltech,ft8112.yaml
> 

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>

Re: [PATCH v6 2/2] HID: i2c-hid: Add FocalTech FT8112

[Doug Anderson]

Hi,

On Mon, Nov 17, 2025 at 1:40 AM
<daniel_peng@pegatron.corp-partner.google.com> wrote:
>
> From: Daniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>
>
> Information for touchscreen model HKO/RB116AS01-2 as below:
> - HID :FTSC1000
> - slave address:0X38
> - Interface:HID over I2C
> - Touch control lC:FT8112
> - I2C ID: PNP0C50
>
> Signed-off-by: Daniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>
> ---
>
> Changes in v6:
> - No changed with the v5 due to relation chain.
>
>  drivers/hid/i2c-hid/i2c-hid-of-elan.c | 8 ++++++++
>  1 file changed, 8 insertions(+)

There are no differences between this patch and previous versions that
I gave my Reviewed-by on. You should be carrying my Reviewed-by: tag
so I don't need to keep replying. In any case:

Reviewed-by: Douglas Anderson <dianders@chromium.org>

-Doug

Re: [PATCH v6 2/2] HID: i2c-hid: Add FocalTech FT8112

[Dmitry Torokhov]

On Mon, Nov 17, 2025 at 05:40:41PM +0800, daniel_peng@pegatron.corp-partner.google.com wrote:
> From: Daniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>
> 
> Information for touchscreen model HKO/RB116AS01-2 as below:
> - HID :FTSC1000
> - slave address:0X38
> - Interface:HID over I2C
> - Touch control lC:FT8112
> - I2C ID: PNP0C50
> 
> Signed-off-by: Daniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>

Jiri, Benjamin, do you want to take it (and the binding) through the HID
tree or should I take it through input?

> ---
> 
> Changes in v6:
> - No changed with the v5 due to relation chain.
> 
>  drivers/hid/i2c-hid/i2c-hid-of-elan.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/hid/i2c-hid/i2c-hid-of-elan.c b/drivers/hid/i2c-hid/i2c-hid-of-elan.c
> index 0215f217f6d8..b81fcc6ff49e 100644
> --- a/drivers/hid/i2c-hid/i2c-hid-of-elan.c
> +++ b/drivers/hid/i2c-hid/i2c-hid-of-elan.c
> @@ -168,6 +168,13 @@ static const struct elan_i2c_hid_chip_data elan_ekth6a12nay_chip_data = {
>  	.power_after_backlight = true,
>  };
>  
> +static const struct elan_i2c_hid_chip_data focaltech_ft8112_chip_data = {
> +	.post_power_delay_ms = 10,
> +	.post_gpio_reset_on_delay_ms = 150,
> +	.hid_descriptor_address = 0x0001,
> +	.main_supply_name = "vcc33",
> +};
> +
>  static const struct elan_i2c_hid_chip_data ilitek_ili9882t_chip_data = {
>  	.post_power_delay_ms = 1,
>  	.post_gpio_reset_on_delay_ms = 200,
> @@ -191,6 +198,7 @@ static const struct elan_i2c_hid_chip_data ilitek_ili2901_chip_data = {
>  static const struct of_device_id elan_i2c_hid_of_match[] = {
>  	{ .compatible = "elan,ekth6915", .data = &elan_ekth6915_chip_data },
>  	{ .compatible = "elan,ekth6a12nay", .data = &elan_ekth6a12nay_chip_data },
> +	{ .compatible = "focaltech,ft8112", .data = &focaltech_ft8112_chip_data },
>  	{ .compatible = "ilitek,ili9882t", .data = &ilitek_ili9882t_chip_data },
>  	{ .compatible = "ilitek,ili2901", .data = &ilitek_ili2901_chip_data },
>  	{ }

Thanks.

-- 
Dmitry

Re: [PATCH v6 2/2] HID: i2c-hid: Add FocalTech FT8112

[Jiri Kosina]

On Tue, 20 Jan 2026, Dmitry Torokhov wrote:

> On Mon, Nov 17, 2025 at 05:40:41PM +0800, daniel_peng@pegatron.corp-partner.google.com wrote:
> > From: Daniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>
> > 
> > Information for touchscreen model HKO/RB116AS01-2 as below:
> > - HID :FTSC1000
> > - slave address:0X38
> > - Interface:HID over I2C
> > - Touch control lC:FT8112
> > - I2C ID: PNP0C50
> > 
> > Signed-off-by: Daniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>
> 
> Jiri, Benjamin, do you want to take it (and the binding) through the HID
> tree or should I take it through input?

	Acked-by: Jiri Kosina <jkosina@suse.com>

feel free to take it through input.git to make it easier.

Thanks,

-- 
Jiri Kosina
SUSE Labs

Re: [PATCH v6 1/2] dt-bindings: input: i2c-hid: Introduce FocalTech FT8112

[Dmitry Torokhov]

On Mon, Nov 17, 2025 at 05:40:40PM +0800, daniel_peng@pegatron.corp-partner.google.com wrote:
> From: Daniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>
> 
> Create new binding file for the FocalTech FT8112 due to
> new touchscreen chip. Confirm its compatible, reg for the
> device via vendor, and set the interrupt and reset gpio
> to map for Skywalker platform.
> FocalTech FT8112 also uses vcc33/vccio power supply.
> 
> Signed-off-by: Daniel Peng <Daniel_Peng@pegatron.corp-partner.google.com>

Applied the lot, thank you.

-- 
Dmitry