diff mbox series

[v2,2/2] arm64: dts: allwinner: a64-oceanic-5205-5inmfd: Enable GT911 CTP

Message ID 20190418083543.11695-2-jagan@amarulasolutions.com
State New
Headers
Series None |

Commit Message

Jagan Teki April 18, 2019, 8:35 a.m. UTC 
Goodix GT911 CTP is bound with Oceanic 5205 5inMFD board.

The CTP connected to board with,
- SDA, SCK from i2c0
- GPIO-LD0 as AVDD28 supply
- PH4 gpio as interrupt pin
- PH11 gpio as reset pin
- X axis is inverted
- Y axis is inverted

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v2:
- drop i2c1, bias-pull-up 

 .../sun50i-a64-oceanic-5205-5inmfd.dts        | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

Comments

Maxime Ripard April 18, 2019, 11:24 a.m. UTC | #1 
On Thu, Apr 18, 2019 at 02:05:43PM +0530, Jagan Teki wrote:
> Goodix GT911 CTP is bound with Oceanic 5205 5inMFD board.
>
> The CTP connected to board with,
> - SDA, SCK from i2c0
> - GPIO-LD0 as AVDD28 supply
> - PH4 gpio as interrupt pin
> - PH11 gpio as reset pin
> - X axis is inverted
> - Y axis is inverted
>
> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
> ---
> Changes for v2:
> - drop i2c1, bias-pull-up
>
>  .../sun50i-a64-oceanic-5205-5inmfd.dts        | 25 +++++++++++++++++++
>  1 file changed, 25 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5205-5inmfd.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5205-5inmfd.dts
> index 6a2154525d1e..02c1a04cc7eb 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5205-5inmfd.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5205-5inmfd.dts
> @@ -37,6 +37,24 @@
>  	status = "okay";
>  };
>
> +&i2c0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2c0_pins>;

The comments on PATCH 1 apply here as well.

Maxime

--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5205-5inmfd.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5205-5inmfd.dts
index 6a2154525d1e..02c1a04cc7eb 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5205-5inmfd.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5205-5inmfd.dts
@@ -37,6 +37,24 @@ 
 	status = "okay";
 };
 
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+	status = "okay";
+
+	touchscreen@5d {
+		compatible = "goodix,gt911";
+		reg = <0x5d>;
+		AVDD28-supply = <&reg_ldo_io0>;			/* VDD_CTP: GPIO0-LDO */
+		interrupt-parent = <&pio>;
+		interrupts = <7 4 IRQ_TYPE_EDGE_FALLING>;
+		irq-gpios = <&pio 7 4 GPIO_ACTIVE_HIGH>;	/* CTP-INT: PH4 */
+		reset-gpios = <&pio 7 11 GPIO_ACTIVE_HIGH>;	/* CTP-RST: PH11 */
+		touchscreen-inverted-x;
+		touchscreen-inverted-y;
+	};
+};
+
 &mdio {
 	ext_rgmii_phy: ethernet-phy@1 {
 		compatible = "ethernet-phy-ieee802.3-c22";
@@ -52,6 +70,13 @@ 
 	regulator-name = "vcc-phy";
 };
 
+&reg_ldo_io0 {
+	regulator-min-microvolt = <3300000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vdd-ctp";
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_pb_pins>;