Message-Id: <1521662593-25468-6-git-send-email-giulio.benetti@micronovasrl.com>
Date:   Wed, 21 Mar 2018 21:03:12 +0100
From:   Giulio Benetti <giulio.benetti@...ronovasrl.com>
To:     Thierry Reding <thierry.reding@...il.com>
Cc:     David Airlie <airlied@...ux.ie>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Chen-Yu Tsai <wens@...e.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        Giulio Benetti <giulio.benetti@...ronovasrl.com>
Subject: [PATCH 6/7] ARM: dts: sun7i: Add dts file for the A20-linova1-4_3 HMI

The A20-Linova1-4_3 HMI, also called Q027_2_A which is printed on
production label, is an industrial Human Machine Interface.
It features:
- 512MB DDR RAM
- 1 Sd-card >= 4GB
- 1 Usb otg(programmable via software) with A-Usb Connector
- 1 Usb host
- 1 Buzzer
- 1 Input for LiPo
- 1 Relay to signal absence of power supply
- 1 External Rtc with 56 bytes of ram + CR2032 battery
- 1 4.3" 24-bits Tft 480x272 with PCap on
- 1 Mono audio 1-watt amplifier
- 1 RS485 port
- 1 Power On Line through +12Vdc reaching 57.600baud,
  from where it can be supplied and placed in a network of 50 units
- exposed jtag pins

HMI is supplied from +12Vdc.
Ethernet is absent, so for debugging, need to enable rndis on Usb otg
port through an A-A usb cable.
It comes in different flavours for connector types and can be found with
umounted features as requested by customers.

Signed-off-by: Giulio Benetti <giulio.benetti@...ronovasrl.com>
---
 .../devicetree/bindings/arm/micronova.txt          |   6 +
 arch/arm/boot/dts/Makefile                         |   1 +
 arch/arm/boot/dts/sun7i-a20-linova1-ctp-4_3i.dts   | 192 +++++++++++++++++++++
 3 files changed, 199 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/micronova.txt
 create mode 100644 arch/arm/boot/dts/sun7i-a20-linova1-ctp-4_3i.dts

diff --git a/Documentation/devicetree/bindings/arm/micronova.txt b/Documentation/devicetree/bindings/arm/micronova.txt
new file mode 100644
index 0000000..35c4127
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/micronova.txt
@@ -0,0 +1,6 @@
+Micronova Device Tree Bindings
+---------------------------
+
+A20-LiNova1-4_3 HMI
+Required root node properties:
+    - compatible = "micronova,a20-linova1-ctp-4_3i", "allwinner,sun7i-a20";
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index ade7a38..c45a4f25 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -941,6 +941,7 @@ dtb-$(CONFIG_MACH_SUN7I) += \
 	sun7i-a20-lamobo-r1.dtb \
 	sun7i-a20-m3.dtb \
 	sun7i-a20-mk808c.dtb \
+	sun7i-a20-linova1-ctp-4_3i.dtb\
 	sun7i-a20-olimex-som-evb.dtb \
 	sun7i-a20-olinuxino-lime.dtb \
 	sun7i-a20-olinuxino-lime2.dtb \
diff --git a/arch/arm/boot/dts/sun7i-a20-linova1-ctp-4_3i.dts b/arch/arm/boot/dts/sun7i-a20-linova1-ctp-4_3i.dts
new file mode 100644
index 0000000..cd4ac73
--- /dev/null
+++ b/arch/arm/boot/dts/sun7i-a20-linova1-ctp-4_3i.dts
@@ -0,0 +1,192 @@
+/*
+ * This is based on sun7i-a20-linova1-ctp-4_3i.dts
+ *
+ * Copyright 2014 - Hans de Goede <hdegoede@...hat.com>
+ * Copyright (c) 2014 FUKAUMI Naoki <naobsd@...il.com>
+ * Copyright (c) 2018 Giulio Benetti <giulio.benetti@...ronovasrl.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This file is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This file is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use,
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include "sun7i-a20.dtsi"
+#include "sunxi-common-regulators.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	model = "Micronova srl LiNova1 CTP 4.3i";
+	compatible = "micronova,a20-linova1-ctp-4_3i", "allwinner,sun7i-a20";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	panel: panel {
+		compatible = "cdtech,s043wq26h-ct7", "simple-panel";
+		power-supply = <&reg_vcc3v3>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			panel_input: endpoint@0 {
+				reg = <0>;
+				remote-endpoint = <&tcon0_out_panel>;
+			};
+		};
+	};
+};
+
+&ehci0 {
+	status = "okay";
+};
+
+&ehci1 {
+	status = "okay";
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins_a>;
+	status = "okay";
+
+	axp209: pmic@34 {
+		compatible = "x-powers,axp209";
+		reg = <0x34>;
+		interrupt-parent = <&nmi_intc>;
+		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+	};
+};
+
+&i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_pins_a>;
+	status = "okay";
+
+	ft5x: touchscreen@38 {
+		compatible = "edt,edt-ft5306";
+		reg = <0x38>;
+		interrupt-parent = <&pio>;
+		interrupts = <7 2 IRQ_TYPE_EDGE_FALLING>; /* PH2 */
+		reset-gpios = <&pio 7 3 GPIO_ACTIVE_LOW>; /* PH3 */
+		touchscreen-size-x = <480>;
+		touchscreen-size-y = <272>;
+	};
+};
+
+&mmc0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc0_pins_a>;
+	vmmc-supply = <&reg_vcc3v3>;
+	bus-width = <4>;
+	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
+	cd-inverted;
+	status = "okay";
+};
+
+&ohci0 {
+	status = "okay";
+};
+
+&ohci1 {
+	status = "okay";
+};
+
+&otg_sram {
+	status = "okay";
+};
+
+&reg_usb0_vbus {
+	status = "okay";
+};
+
+&reg_usb1_vbus {
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins_a>;
+	status = "okay";
+};
+
+&usb_otg {
+	dr_mode = "otg";
+	status = "okay";
+};
+
+&usbphy {
+	pinctrl-names = "default";
+	usb0_vbus-supply = <&reg_usb0_vbus>;
+	usb1_vbus-supply = <&reg_usb1_vbus>;
+	status = "okay";
+};
+
+&be0 {
+	status = "okay";
+};
+
+&de {
+	status = "okay";
+};
+
+&tcon0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&lcd0_rgb888_pins>;
+	status = "okay";
+};
+
+&tcon0_out {
+	tcon0_out_panel: endpoint@0 {
+		reg = <0>;
+		remote-endpoint = <&panel_input>;
+	};
+};
-- 
2.7.4

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