Re: [linux-sunxi][PATCH v2 1/5] ARM: dts: sunxi: Add sunxi-itead-core-common.dtsi

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On 21 December 2015 at 15:37, Chen-Yu Tsai <wens@xxxxxxxx> wrote:
> On Mon, Dec 21, 2015 at 2:18 PM, Chen-Yu Tsai <wens@xxxxxxxx> wrote:
>> Hi,
>>
>> On Sat, Dec 19, 2015 at 11:05 PM,  <codekipper@xxxxxxxxx> wrote:
>>> From: Marcus Cooper <codekipper@xxxxxxxxx>
>>>
>>> Itead have a core module board that can be populated with either
>>> an Allwinner A10 or A20 SoC. This patch creates a common dtsi
>>> which these boards can use.
>>>
>>> Signed-off-by: Marcus Cooper <codekipper@xxxxxxxxx>
>>> ---
>>>  arch/arm/boot/dts/sunxi-itead-core-common.dtsi | 114 +++++++++++++++++++++++++
>>>  1 file changed, 114 insertions(+)
>>>  create mode 100644 arch/arm/boot/dts/sunxi-itead-core-common.dtsi
>>>
>>> diff --git a/arch/arm/boot/dts/sunxi-itead-core-common.dtsi b/arch/arm/boot/dts/sunxi-itead-core-common.dtsi
>>> new file mode 100644
>>> index 0000000..41449fa
>>> --- /dev/null
>>> +++ b/arch/arm/boot/dts/sunxi-itead-core-common.dtsi
>>> @@ -0,0 +1,114 @@
>>> +/*
>>> + * Copyright 2015 - Marcus Cooper <codekipper@xxxxxxxxx>
>>> + *
>>> + * 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.
>>> + */
>>> +
>>> +#include "sunxi-common-regulators.dtsi"
>>> +
>>> +#include <dt-bindings/gpio/gpio.h>
>>> +#include <dt-bindings/interrupt-controller/irq.h>
>>> +#include <dt-bindings/pinctrl/sun4i-a10.h>
>>> +
>>> +/ {
>>> +       aliases {
>>> +               serial0 = &uart0;
>>> +       };
>>> +
>>> +       chosen {
>>> +               stdout-path = "serial0:115200n8";
>>> +       };
>>> +};
>>> +
>>> +&ahci {
>>> +       target-supply = <&reg_ahci_5v>;
>>> +       status = "okay";
>>> +};
>>> +
>>> +&codec {
>>> +       status = "okay";
>>> +};
>>> +
>>> +&ehci0 {
>>> +       status = "okay";
>>> +};
>>> +
>>> +&ehci1 {
>>> +       status = "okay";
>>> +};
>>> +
>>> +&i2c1 {
>>> +       pinctrl-names = "default";
>>> +       pinctrl-0 = <&i2c1_pins_a>;
>>> +       status = "okay";
>>> +};
>>> +
>>> +&ohci0 {
>>> +       status = "okay";
>>> +};
>>> +
>>> +&ohci1 {
>>> +       status = "okay";
>>> +};
>>> +
>>> +&reg_ahci_5v {
>>> +       pinctrl-0 = <&ahci_pwr_pin_a>;
>>> +       gpio = <&pio 1 8 GPIO_ACTIVE_HIGH>;
>>
>> These 2 lines are in sunxi-common-regulators.dtsi. No need to repeat them here.
>>
>> Otherwise,
>>
>> Acked-by: Chen-Yu Tsai <wens@xxxxxxxx>
>
> On second thought: What happens when you have a base board that doesn't support
> all the peripherals you enabled here? Like a small baseboard without SATA?

Hi Wen,
unlikely but enough of a reason for me to NACK this patch series. I'll
move the enabling to the board dts file, should I also do the same
with the codec?. I chose to enable them in the common dtsi as the pins
aren't used for anything else.
Thanks for taking time to review this for me,
CK

>
> Thanks
> ChenYu
>
>>> +       status = "okay";
>>> +};
>>> +
>>> +&reg_usb1_vbus {
>>> +       status = "okay";
>>> +};
>>> +
>>> +&reg_usb2_vbus {
>>> +       status = "okay";
>>> +};
>>> +
>>> +&uart0 {
>>> +       pinctrl-names = "default";
>>> +       pinctrl-0 = <&uart0_pins_a>;
>>> +       status = "okay";
>>> +};
>>> +
>>> +&usbphy {
>>> +       usb1_vbus-supply = <&reg_usb1_vbus>;
>>> +       usb2_vbus-supply = <&reg_usb2_vbus>;
>>> +       status = "okay";
>>> +};
>>> --
>>> 1.9.1
>>>
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