On Sat, Sep 05, 2015 at 10:21:59AM +0200, Hans de Goede wrote:
> The Point of View protab2-ips9 is a tablet with a 9" ips 1024x768 lcd screen,
> microsd slot, headphones, mini hdmi, mini usb b and power barrel connectors.
>
> It uses a rtl8188cus usb wifi chip and a RDA 5875Y bluetooth chip attached
> to uart2. It has a bma250 accelerometer attached to i2c1 addr 0x18.
>
> It has a pixcir,pixcir_tangoc compatible touchscreen attached to i2c2 addr
> 0x5c. This is not enabled in this dts, because this variant of the
> pixcir_tangoc has separate wakeup and enable pins both of which need
> to be driven low before the touchscreen will work. Before we can enable
> this the pixcir driver and devicetree-bindings need to be extended to
> support these pins.
>
> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
> ---
> arch/arm/boot/dts/Makefile | 3 +-
> arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts | 209 +++++++++++++++++++++++
> 2 files changed, 211 insertions(+), 1 deletion(-)
> create mode 100644 arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts
>
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index e981fd6..c08883c 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -561,7 +561,8 @@ dtb-$(CONFIG_MACH_SUN4I) += \
> sun4i-a10-mk802.dtb \
> sun4i-a10-mk802ii.dtb \
> sun4i-a10-olinuxino-lime.dtb \
> - sun4i-a10-pcduino.dtb
> + sun4i-a10-pcduino.dtb \
> + sun4i-a10-pov-protab2-ips9.dtb
> dtb-$(CONFIG_MACH_SUN5I) += \
> sun5i-a10s-auxtek-t003.dtb \
> sun5i-a10s-auxtek-t004.dtb \
> diff --git a/arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts b/arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts
> new file mode 100644
> index 0000000..223515e
> --- /dev/null
> +++ b/arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts
> @@ -0,0 +1,209 @@
> +/*
> + * Copyright 2015 Hans de Goede <hdegoede@xxxxxxxxxx>
> + *
> + * 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 "sun4i-a10.dtsi"
> +#include "sunxi-common-regulators.dtsi"
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +#include <dt-bindings/pinctrl/sun4i-a10.h>
> +
> +/ {
> + model = "Point of View Protab2-IPS9";
> + compatible = "pov,protab2-ips9", "allwinner,sun4i-a10";
> +
> + aliases {
> + serial0 = &uart0;
> + };
> +
> + chosen {
> + stdout-path = "serial0:115200n8";
> + };
> +};
> +
> +&cpu0 {
> + cpu-supply = <®_dcdc2>;
> +};
> +
> +&ehci0 {
> + status = "okay";
> +};
> +
> +&i2c0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&i2c0_pins_a>;
> + status = "okay";
> +
> + axp209: pmic@34 {
> + reg = <0x34>;
> + interrupts = <0>;
> + };
> +};
> +
> +#include "axp209.dtsi"
> +
> +&i2c1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&i2c1_pins_a>;
> + status = "okay";
> +};
> +
> +&i2c2 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&i2c2_pins_a>;
> + status = "okay";
> +};
> +
> +&lradc {
> + vref-supply = <®_ldo2>;
> + status = "okay";
> +
> + button@400 {
> + label = "Volume Up";
> + linux,code = <KEY_VOLUMEUP>;
> + channel = <0>;
> + voltage = <400000>;
> + };
> +
> + button@800 {
> + label = "Volume Down";
> + linux,code = <KEY_VOLUMEDOWN>;
> + channel = <0>;
> + voltage = <800000>;
> + };
> +};
> +
> +&mmc0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> + vmmc-supply = <®_vcc3v3>;
> + bus-width = <4>;
> + cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> + cd-inverted;
> + status = "okay";
> +};
> +
> +&otg_sram {
> + status = "okay";
> +};
> +
> +&pio {
> + usb0_id_detect_pin: usb0_id_detect_pin@0 {
> + allwinner,pins = "PH4";
> + allwinner,function = "gpio_in";
> + allwinner,drive = <SUN4I_PINCTRL_10_MA>;
> + allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
> + };
> +
> + usb0_vbus_detect_pin: usb0_vbus_detect_pin@0 {
> + allwinner,pins = "PH5";
> + allwinner,function = "gpio_in";
> + allwinner,drive = <SUN4I_PINCTRL_10_MA>;
> + allwinner,pull = <SUN4I_PINCTRL_PULL_DOWN>;
> + };
> +};
> +
> +®_dcdc2 {
> + regulator-always-on;
> + regulator-min-microvolt = <1000000>;
> + regulator-max-microvolt = <1400000>;
> + regulator-name = "vdd-cpu";
> +};
> +
> +®_dcdc3 {
> + regulator-always-on;
> + regulator-min-microvolt = <1250000>;
> + regulator-max-microvolt = <1250000>;
> + regulator-name = "vdd-int-dll";
> +};
> +
> +®_ldo1 {
> + regulator-name = "vdd-rtc";
> +};
> +
> +®_ldo2 {
> + regulator-always-on;
> + regulator-min-microvolt = <3000000>;
> + regulator-max-microvolt = <3000000>;
> + regulator-name = "avcc";
> +};
> +
> +®_ldo3 {
> + /*
> + * We need to always power the camera sensor, otherwhise all access
> + * to i2c1 is blocked.
> + */
> + regulator-always-on;
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + regulator-name = "vdd-csi";
> +};
What is connected on i2c1 ? Just the camera sensor? or it has some
other devices there?
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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