linux-kernel - Re: [PATCH v1 7/7] arm64: boot: dts: Add initial support for Samsung Galaxy Note20 5G (c1s)

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Message-ID: <a83f7c01-2375-4fe5-a74c-fe7b644fd949@kernel.org>
Date: Tue, 15 Oct 2024 09:03:45 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Igor Belwon <igor.belwon@...tallysanemainliners.org>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>,
 Sylwester Nawrocki <s.nawrocki@...sung.com>,
 Linus Walleij <linus.walleij@...aro.org>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-samsung-soc@...r.kernel.org,
 linux-gpio@...r.kernel.org, david@...nlining.org
Subject: Re: [PATCH v1 7/7] arm64: boot: dts: Add initial support for Samsung
 Galaxy Note20 5G (c1s)

On 15/10/2024 08:27, Igor Belwon wrote:
> Add initial support for the Samsung Galaxy Note20 5G (c1s/SM-N981B)
> phone. It was launched in 2020, and it's based on the Exynos 990 SoC. It
> has only one configuration with 8GB of RAM, albeit storage options may
> differ.
> 
> This device tree adds support for the following:
> 
> - SimpleFB
> - 8GB RAM
> - Buttons
> 
> Signed-off-by: Igor Belwon <igor.belwon@...tallysanemainliners.org>
> ---
>  arch/arm64/boot/dts/exynos/Makefile          |   1 +
>  arch/arm64/boot/dts/exynos/exynos990-c1s.dts | 111 +++++++++++++++++++

Please use subject prefixes matching the subsystem. You can get them for
example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory
your patch is touching. For bindings, the preferred subjects are
explained here:
https://www.kernel.org/doc/html/latest/devicetree/bindings/submitting-patches.html#i-for-patch-submitters

>  2 files changed, 112 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/exynos/exynos990-c1s.dts
> 
> diff --git a/arch/arm64/boot/dts/exynos/Makefile b/arch/arm64/boot/dts/exynos/Makefile
> index 18f5a3eed523..7a934499b235 100644
> --- a/arch/arm64/boot/dts/exynos/Makefile
> +++ b/arch/arm64/boot/dts/exynos/Makefile
> @@ -8,5 +8,6 @@ dtb-$(CONFIG_ARCH_EXYNOS) += \
>  	exynos7885-jackpotlte.dtb	\
>  	exynos850-e850-96.dtb		\
>  	exynos8895-dreamlte.dtb		\
> +	exynos990-c1s.dtb		\
>  	exynosautov9-sadk.dtb		\
>  	exynosautov920-sadk.dtb
> diff --git a/arch/arm64/boot/dts/exynos/exynos990-c1s.dts b/arch/arm64/boot/dts/exynos/exynos990-c1s.dts
> new file mode 100644
> index 000000000000..7bff098d7982
> --- /dev/null
> +++ b/arch/arm64/boot/dts/exynos/exynos990-c1s.dts
> @@ -0,0 +1,111 @@
> +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
> +/*
> + * Samsung Galaxy Note20 5G (c1s/SM-N981B) device tree source
> + *
> + * Copyright (c) 2024, Igor Belwon <igor.belwon@...tallysanemainliners.org>
> + */
> +
> +/dts-v1/;
> +#include "exynos990.dtsi"
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +
> +/ {
> +	model = "Samsung Galaxy Note20";
> +	compatible = "samsung,c1s", "samsung,exynos990";
> +
> +	chosen {
> +		#address-cells = <2>;
> +		#size-cells = <1>;
> +		ranges;
> +
> +		framebuffer0: framebuffer@...00000 {
> +			compatible = "simple-framebuffer";
> +			reg = <0 0xf1000000 (1080 * 2400 * 4)>;
> +			width = <1080>;
> +			height = <2400>;
> +			stride = <(1080 * 4)>;
> +			format = "a8r8g8b8";
> +		};
> +	};
> +
> +	memory@...01000 {
> +		device_type = "memory";
> +		reg = <0x0 0x80000000 0x3ab00000>,
> +		      /* Memory hole */
> +		      <0x0 0xc1200000 0x1ed80000>,
> +		      /* Memory hole */
> +		      <0x0 0xe1900000 0x1a8e9800>;
> +	};
> +
> +	reserved-memory {
> +		#address-cells = <2>;
> +		#size-cells = <1>;
> +		ranges;
> +
> +		cont_splash_mem: framebuffer@...00000 {
> +			reg = <0 0xf1000000 0x13c6800>;
> +			no-map;
> +		};
> +
> +		abox_reserved: audio@...b0000 {
> +			reg = <0 0xf7fb0000 0x2a50000>;
> +			no-map;
> +		};
> +	};
> +
> +	gpio-keys {
> +		compatible = "gpio-keys";
> +
> +		pinctrl-0 = <&key_power &key_voldown &key_volup>;
> +		pinctrl-names = "default";
> +
> +		power-key {
> +			label = "Power";
> +			linux,code = <KEY_POWER>;
> +			gpios = <&gpa2 4 GPIO_ACTIVE_LOW>;
> +			wakeup-source;
> +		};
> +
> +		voldown-key {
> +			label = "Volume Down";
> +			linux,code = <KEY_VOLUMEDOWN>;
> +			gpios = <&gpa0 4 GPIO_ACTIVE_LOW>;
> +		};
> +
> +		volup-key {
> +			label = "Volume Up";
> +			linux,code = <KEY_VOLUMEUP>;
> +			gpios = <&gpa0 3 GPIO_ACTIVE_LOW>;
> +		};
> +

Stray blank line

> +	};
> +};
> +
> +&oscclk {
> +	clock-frequency = <26000000>;
> +};
> +


Best regards,
Krzysztof