linux-kernel - Re: [PATCH v3 2/3] ARM: dts: exynos: Add Google Manta (Nexus 10)

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Message-ID: <546ff0cb-a3a2-4fa4-a78b-79c923ed7765@kernel.org>
Date: Mon, 15 Dec 2025 20:33:24 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: David Heidelberg <david@...t.cz>,
 Lukas Timmermann <linux@...mermann.space>,
 Alim Akhtar <alim.akhtar@...sung.com>, Rob Herring <robh@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Russell King <linux@...linux.org.uk>
Cc: linux-arm-kernel@...ts.infradead.org, linux-samsung-soc@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 phone-devel@...r.kernel.org, Alexandre Marquet <tb@...arquet.fr>
Subject: Re: [PATCH v3 2/3] ARM: dts: exynos: Add Google Manta (Nexus 10)

On 15/12/2025 19:53, David Heidelberg wrote:
> Hello Lucas,
> 
> thanks for the sending Nexus 10 upstream, see few nitpicks below:
> 
> On 15/12/2025 16:05, Lukas Timmermann wrote:
>> From: Alexandre Marquet <tb@...arquet.fr>
>>
>> Manta is the code name for Google Nexus 10, and was manufactured by
>> Samsung with their Exynos5250 SoC.
>> This patch adds initial device-tree file for this board.
>>
>> Signed-off-by: Alexandre Marquet <tb@...arquet.fr>
>> Co-developed-by: Lukas Timmermann <linux@...mermann.space>
>> Signed-off-by: Lukas Timmermann <linux@...mermann.space>
>> ---
>>   arch/arm/boot/dts/samsung/Makefile             |   1 +
>>   arch/arm/boot/dts/samsung/exynos5250-manta.dts | 511 +++++++++++++++++++++++++
>>   2 files changed, 512 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/samsung/Makefile b/arch/arm/boot/dts/samsung/Makefile
>> index 7becf36656b1..e0143ee8c82d 100644
>> --- a/arch/arm/boot/dts/samsung/Makefile
>> +++ b/arch/arm/boot/dts/samsung/Makefile
>> @@ -26,6 +26,7 @@ dtb-$(CONFIG_ARCH_EXYNOS4) += \
>>   	exynos4412-trats2.dtb
>>   dtb-$(CONFIG_ARCH_EXYNOS5) += \
>>   	exynos5250-arndale.dtb \
>> +	exynos5250-manta.dtb \
>>   	exynos5250-smdk5250.dtb \
>>   	exynos5250-snow.dtb \
>>   	exynos5250-snow-rev5.dtb \
>> diff --git a/arch/arm/boot/dts/samsung/exynos5250-manta.dts b/arch/arm/boot/dts/samsung/exynos5250-manta.dts
>> new file mode 100644
>> index 000000000000..0f006590576c
>> --- /dev/null
>> +++ b/arch/arm/boot/dts/samsung/exynos5250-manta.dts
>> @@ -0,0 +1,511 @@
>> +// SPDX-License-Identifier: GPL-2.0
> 
> you could use here modern SPDX I guess (GPL-2.0-only)
> 
>> +/*
>> + * Google Manta (Nexus 10) board device tree source
>> + *
>> + * Copyright (c) 2023-2025 Alexandre Marquet
>> + * Copyright (c) 2025 Lukas Timmermann
>> + */
>> +
>> +/dts-v1/;
>> +#include <dt-bindings/leds/common.h>
>> +#include <dt-bindings/gpio/gpio.h>
>> +#include <dt-bindings/clock/maxim,max77686.h>
>> +#include <dt-bindings/input/linux-event-codes.h>
>> +#include "exynos-pinctrl.h"
>> +#include "exynos5250.dtsi"
>> +#include "exynos-mfc-reserved-memory.dtsi"
>> +
>> +/ {
>> +	model = "Google Nexus 10";
>> +	compatible = "google,manta", "samsung,exynos5250", "samsung,exynos5";
>> +
>> +	aliases {
>> +		mmc0 = &mmc_0; /* eMMC */
>> +		mmc1 = &mmc_1; /* WiFi */
>> +	};
>> +
>> +	bmp180_vdda_reg: regulator-bmp180-vdda {
>> +		compatible = "regulator-fixed";
>> +		regulator-name = "BMP180_VDDA";
>> +	};
> something-something-regulator (all occurences within the DTS)
> 

I don't understand this suggestion.

>> +
>> +	bmp180_vddd_reg: regulator-bmp180-vddd {
>> +		compatible = "regulator-fixed";
>> +		regulator-name = "BMP180_VDDD";
>> +	};



>> +};
>> +
>> +&clock {
>> +	assigned-clocks = <&clock CLK_FOUT_APLL>;
>> +	assigned-clock-rates = <1000000000>;
>> +};
>> +
>> +&cpu0 {
>> +	cpu0-supply = <&buck2_reg>;
>> +};
>> +
>> +&ehci {
>> +	status = "disabled";
>> +};
>> +
>> +&i2c_0 {
>> +	status = "okay";
> 
> status should be before first sub-node (none in this case), with 
> preceding newline, please change all occurences
> 

Well yeah, but do you have actually any comment pointing real issues?


Best regards,
Krzysztof