From: Jagan Teki <jagan@amarulasolutions.com>
To: Maxime Ripard <maxime.ripard@bootlin.com>,
Chen-Yu Tsai <wens@csie.org>, Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Jagan Teki <jagan@amarulasolutions.com>,
Michael Trimarchi <michael@amarulasolutions.com>,
linux-amarula@amarulasolutions.com,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 2/2] arm64: dts: allwinner: a64-oceanic-5205-5inmfd: Enable GT911 CTP
Date: Thu, 18 Apr 2019 19:18:38 +0530 [thread overview]
Message-ID: <20190418134838.8806-2-jagan@amarulasolutions.com> (raw)
In-Reply-To: <20190418134838.8806-1-jagan@amarulasolutions.com>
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 v3:
- Use 2.8v for reg_ldo_io0
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..f0cd6587f619 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 = <®_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";
};
+®_ldo_io0 {
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-name = "vdd-ctp";
+ status = "okay";
+};
+
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pb_pins>;
--
2.18.0.321.gffc6fa0e3
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next prev parent reply other threads:[~2019-04-18 13:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-18 13:48 [PATCH v3 1/2] arm64: dts: allwinner: a64-amarula-relic: Add GT5663 CTP node Jagan Teki
2019-04-18 13:48 ` Jagan Teki [this message]
2019-04-18 14:04 ` Maxime Ripard
2019-04-18 14:09 ` Jagan Teki
2019-04-18 14:51 ` Maxime Ripard
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