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Subject[PATCH 9/9] arm64: dts: allwinner: a64-amarula-relic: Add GT5663 CTP node
Date
Add Goodix GT5663 capacitive touch controller node on
Amarula A64-Relic board.

The CTP connected to board with,
- SDA, SCK from i2c1
- GPIO-LD0 as vcc supply
- PH4 gpio as interrupt pin
- PH8 gpio as reset pin
- X and Y axis are inverted

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
.../allwinner/sun50i-a64-amarula-relic.dts | 29 +++++++++++++++++++
1 file changed, 29 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts
index 9ac6d773188b..913fcdff828e 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts
@@ -88,6 +88,28 @@
status = "okay";
};

+&i2c1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_pins>;
+ status = "okay";
+
+ touchscreen@5d {
+ compatible = "goodix,gt5663";
+ reg = <0x5d>;
+ vcc-supply = <&reg_ldo_io0>; /* VCC-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 8 GPIO_ACTIVE_HIGH>; /* CTP-RST: PH8 */
+ touchscreen-inverted-x;
+ touchscreen-inverted-y;
+ };
+};
+
+&i2c1_pins {
+ bias-pull-up;
+};
+
&mmc1 {
pinctrl-names = "default";
pinctrl-0 = <&mmc1_pins>;
@@ -251,6 +273,13 @@
regulator-name = "vdd-cpus";
};

+&reg_ldo_io0 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-ctp";
+ status = "okay";
+};
+
&reg_rtc_ldo {
regulator-name = "vcc-rtc";
};
--
2.18.0.321.gffc6fa0e3
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