linux-kernel - Re: [PATCH 2/2] arm64: dts: meson-g12b-gtking: add initial device-tree

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Message-ID: <1jftencity.fsf@starbuckisacylon.baylibre.com>
Date:   Thu, 05 Mar 2020 09:22:01 +0100
From:   Jerome Brunet <jbrunet@...libre.com>
To:     Neil Armstrong <narmstrong@...libre.com>,
        Christian Hewitt <christianshewitt@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Kevin Hilman <khilman@...libre.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] arm64: dts: meson-g12b-gtking: add initial device-tree


On Tue 03 Mar 2020 at 15:50, Neil Armstrong <narmstrong@...libre.com> wrote:

> On 29/02/2020 15:09, Christian Hewitt wrote:
>> The Shenzen AZW (Beelink) GT-King is based on the Amlogic W400 reference
>> board with an S922X chip.
>> 
>> - 4GB LPDDR4 RAM
>> - 64GB eMMC storage
>> - 10/100/1000 Base-T Ethernet
>> - AP6356S Wireless (802.11 a/b/g/n/ac, BT 4.1)
>> - HDMI 2.1 video
>> - S/PDIF optical output
>> - Analogue audio output
>> - 1x USB 2.0 port
>> - 2x USB 3.0 ports
>> - IR receiver
>> - 1x micro SD card slot
>> 
>> The device-tree is largely based on meson-g12b-ugoos-am6.

largely indeed ... Would you mind pointing out why the am6 dts can't be
used and why this one is needed ?

Maybe I missed something but they look the same to me.

>> 
>> Signed-off-by: Christian Hewitt <christianshewitt@...il.com>
>> ---
>>  arch/arm64/boot/dts/amlogic/Makefile              |   1 +
>>  arch/arm64/boot/dts/amlogic/meson-g12b-gtking.dts | 557 ++++++++++++++++++++++
>>  2 files changed, 558 insertions(+)
>>  create mode 100644 arch/arm64/boot/dts/amlogic/meson-g12b-gtking.dts
>> 
>> diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
>> index eef0045..1fd28e8 100644
>> --- a/arch/arm64/boot/dts/amlogic/Makefile
>> +++ b/arch/arm64/boot/dts/amlogic/Makefile
>> @@ -3,6 +3,7 @@ dtb-$(CONFIG_ARCH_MESON) += meson-axg-s400.dtb
>>  dtb-$(CONFIG_ARCH_MESON) += meson-g12a-sei510.dtb
>>  dtb-$(CONFIG_ARCH_MESON) += meson-g12a-u200.dtb
>>  dtb-$(CONFIG_ARCH_MESON) += meson-g12a-x96-max.dtb
>> +dtb-$(CONFIG_ARCH_MESON) += meson-g12b-gtking.dtb
>>  dtb-$(CONFIG_ARCH_MESON) += meson-g12b-a311d-khadas-vim3.dtb
>>  dtb-$(CONFIG_ARCH_MESON) += meson-g12b-s922x-khadas-vim3.dtb
>>  dtb-$(CONFIG_ARCH_MESON) += meson-g12b-odroid-n2.dtb
>> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-gtking.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-gtking.dts
>> new file mode 100644
>> index 0000000..819f208
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-gtking.dts
>> @@ -0,0 +1,557 @@
>> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
>> +/*
>> + * Copyright (c) 2019 BayLibre, SAS
>> + * Author: Neil Armstrong <narmstrong@...libre.com>
>> + * Copyright (c) 2019 Christian Hewitt <christianshewitt@...il.com>
>> + */
>> +

[...]

>> +
>> +&spdifout_b {
>> +	status = "okay";
>> +};
>> +

Again, not support by the HDMI controller and not used in the sound card.