linux-kernel - Re: [PATCH 2/2] arm64: dts: rockchip: Add Hardkernel ODROID-M1 board

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Date:   Tue, 5 Apr 2022 08:13:00 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Dongjin Kim <tobetter@...il.com>
Cc:     Heiko Stuebner <heiko@...ech.de>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] arm64: dts: rockchip: Add Hardkernel ODROID-M1 board

On 05/04/2022 04:32, Dongjin Kim wrote:
> On Tue, Mar 29, 2022 at 07:12:16PM +0200, Krzysztof Kozlowski wrote:
>> On 29/03/2022 11:44, Dongjin Kim wrote:
>>> This patch is to add a device tree for new board Hardkernel ODROID-M1
>>> based on Rockchip RK3568, includes basic peripherals -
>>> uart/eMMC/uSD/i2c and on-board ethernet.
>>
>> I think the email got corrupted (incorrect To addresses).
>>
> Thank you for reviewing and sorry for late reply.
>>>
>>> Signed-off-by: Dongjin Kim <tobetter@...il.com>
>>> ---
>>>  arch/arm64/boot/dts/rockchip/Makefile         |   1 +
>>>  .../boot/dts/rockchip/rk3568-odroid-m1.dts    | 406 ++++++++++++++++++
>>>  2 files changed, 407 insertions(+)
>>>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3568-odroid-m1.dts
>>>
>>> diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
>>> index 4ae9f35434b8..81d160221227 100644
>>> --- a/arch/arm64/boot/dts/rockchip/Makefile
>>> +++ b/arch/arm64/boot/dts/rockchip/Makefile
>>> @@ -61,3 +61,4 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-pinenote-v1.2.dtb
>>>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-quartz64-a.dtb
>>>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-evb1-v10.dtb
>>>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-bpi-r2-pro.dtb
>>> +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-odroid-m1.dtb
>>> diff --git a/arch/arm64/boot/dts/rockchip/rk3568-odroid-m1.dts b/arch/arm64/boot/dts/rockchip/rk3568-odroid-m1.dts
>>> new file mode 100644
>>> index 000000000000..d1a5d43127e9
>>> --- /dev/null
>>> +++ b/arch/arm64/boot/dts/rockchip/rk3568-odroid-m1.dts
>>> @@ -0,0 +1,406 @@
>>> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
>>> +/*
>>> + * Copyright (c) 2022 Hardkernel Co., Ltd.
>>> + *
>>> + */
>>> +
>>> +/dts-v1/;
>>> +#include <dt-bindings/gpio/gpio.h>
>>> +#include <dt-bindings/leds/common.h>
>>> +#include <dt-bindings/pinctrl/rockchip.h>
>>> +#include "rk3568.dtsi"
>>> +
>>> +/ {
>>> +	model = "Hardkernel ODROID-M1";
>>> +	compatible = "rockchip,rk3568-odroid-m1", "rockchip,rk3568";
>>> +
>>> +	aliases {
>>> +		ethernet0 = &gmac0;
>>> +		i2c0 = &i2c3;
>>> +		i2c3 = &i2c0;
>>> +		mmc0 = &sdhci;
>>> +		mmc1 = &sdmmc0;
>>> +		serial0 = &uart1;
>>> +		serial1 = &uart0;
>>> +	};
>>> +
>>> +	chosen: chosen {
>>
>> No need for label.
>>
> Ok. Will fix it.
>>> +		stdout-path = "serial2:1500000n8";
>>> +	};
>>> +
>>> +	dc_12v: dc-12v {
>>
>> Generic node name, so "regulator" or "regulator-0"
>>
> I've followed the node names as already merged device tree files
> for other boards and thought this would be acceptable. Same for other
> node names 'vcc3v3-sys' and node names with underscore below.

Poor code once it gets in, it's difficult to get it out... Don't use it
as an example. :)


Best regards,
Krzysztof