Subject: [PATCH 1/3] ARM: dts: sun4i: Add dts file for Chuwi V7 CW0825 tablet

From: [email-masked] (Hans de Goede)
Date: Mon, 12 Jan 2015 12:21:30 +0100

Hi,

On 12-01-15 12:17, Maxime Ripard wrote:
> Hi Hans,
>
> On Wed, Jan 07, 2015 at 09:16:13PM +0100, Hans de Goede wrote:
>> The Chuwi V7 is an A10 (sun4i) based tablet with 1G of RAM, 16G of nand flash,
>> microsd slot, 7" 1024x768 lvds ips panel, mini hdmi out, headphones out,
>> stereo speakers, front & back camera and usb wifi.
>>
>> It is clearly marked "CHUWI", "V7" and "Model: CW0825" on the back of the
>> tablet.
>>
>> Signed-off-by: Hans de Goede <[email-masked]>
>
> This is mostly looking good, as usual, but I have a few comments on
> it.
>
>> ---
>>   arch/arm/boot/dts/Makefile                      |   1 +
>>   arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts | 101 ++++++++++++++++++++++++
>>   2 files changed, 102 insertions(+)
>>   create mode 100644 arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts
>>
>> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
>> index a86f232..548520f 100644
>> --- a/arch/arm/boot/dts/Makefile
>> +++ b/arch/arm/boot/dts/Makefile
>> @@ -445,6 +445,7 @@ dtb-$(CONFIG_ARCH_STI)+= stih407-b2120.dtb \
>>   dtb-$(CONFIG_MACH_SUN4I) += \
>>   	sun4i-a10-a1000.dtb \
>>   	sun4i-a10-ba10-tvbox.dtb \
>> +	sun4i-a10-chuwi-v7-cw0825.dtb \
>>   	sun4i-a10-cubieboard.dtb \
>>   	sun4i-a10-mini-xplus.dtb \
>>   	sun4i-a10-hackberry.dtb \
>> diff --git a/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts b/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts
>> new file mode 100644
>> index 0000000..1960985
>> --- /dev/null
>> +++ b/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts
>> @@ -0,0 +1,101 @@
>> +/*
>> + * Copyright 2015 Hans de Goede <[email-masked]>
>> + *
>> + * 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.
>> + *
>> + *     You should have received a copy of the GNU General Public
>> + *     License along with this file; if not, write to the Free
>> + *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
>> + *     MA 02110-1301 USA
>> + *
>> + * 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"
>
> This would be great to move to the C-preprocessor includes.
>
>> +
>> +/ {
>> +	model = "Chuwi V7 CW0825";
>> +	compatible = "chuwi,v7-cw0825", "allwinner,sun4i-a10";
>> +
>> +	soc at 01c00000 {
>> +		mmc0: mmc at 01c0f000 {
>> +			pinctrl-names = "default";
>> +			pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
>> +			vmmc-supply = <&reg_vcc3v3>;
>> +			bus-width = <4>;
>> +			cd-gpios = <&pio 7 1 0>; /* PH1 */
>
> And use the GPIO header for the GPIO flags.
>
>> +			cd-inverted;
>> +			status = "okay";
>> +		};
>> +
>> +		uart0: serial at 01c28000 {
>> +			pinctrl-names = "default";
>> +			pinctrl-0 = <&uart0_pins_a>;
>> +			status = "okay";
>> +		};
>> +
>> +		usbphy: phy at 01c13400 {
>> +			usb2_vbus-supply = <&reg_usb2_vbus>;
>> +			status = "okay";
>> +		};
>> +
>> +		ehci1: usb at 01c1c000 {
>> +			status = "okay";
>> +		};
>> +
>> +		i2c0: i2c at 01c2ac00 {
>> +			pinctrl-names = "default";
>> +			pinctrl-0 = <&i2c0_pins_a>;
>> +			status = "okay";
>> +
>> +			axp209: pmic at 34 {
>> +				compatible = "x-powers,axp209";
>> +				reg = <0x34>;
>> +				interrupts = <0>;
>> +
>> +				interrupt-controller;
>> +				#interrupt-cells = <1>;
>
> I just merged a patch from Chen-Yu that add a DTSI for the AXP209, you
> should probably use it to remove some of the boilerplate.
>
>> +			};
>> +		};
>> +	};
>> +
>> +	reg_usb2_vbus: usb2-vbus {
>> +		status = "okay";
>> +	};
>> +};
>
> Would you consider switching to the label-based syntax instead of
> replicating the whole DT tree like you did for the A31s DTSI?

Yes, I actually already realized I should have done that mysefl, so I
already have doing a v2 on my todo list. I'll send out a v2 with the
requested changes when I've some time to work on this.

Regards,

Hans