linux-kernel - Re: [PATCH v2 2/2] arm64: dts: Add initial support for Samsung Galaxy S20 FE (r8s)

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Message-ID: <746e218b-a00c-49ac-a998-511696bc9525@gmail.com>
Date: Thu, 14 Nov 2024 10:26:05 +0200
From: Ivaylo Ivanov <ivo.ivanov.ivanov1@...il.com>
To: Denzeel Oliva <wachiturroxd150@...il.com>,
 Krzysztof Kozlowski <krzk@...nel.org>, Alim Akhtar
 <alim.akhtar@...sung.com>, Rob Herring <robh@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org, linux-samsung-soc@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] arm64: dts: Add initial support for Samsung Galaxy
 S20 FE (r8s)




On 11/12/24 21:31, Denzeel Oliva wrote:
> Add initial support for the Samsung Galaxy S20 FE (r8s/SM-G780F) device.
> Its launch was in 2020 and also based on the Exynos 990 SoC.
> It is only configured with 6GB of RAM, although storage options may differ.

As far as I can tell, there are models with more than 6gb's of ram.
How would the memory node differ for them?

>
> This device tree adds support for the following:
>
> - SimpleFB
> - 6GB RAM
> - Buttons
>
> Signed-off-by: Denzeel Oliva <wachiturroxd150@...il.com>
> ---
>  arch/arm64/boot/dts/exynos/Makefile          |   1 +
>  arch/arm64/boot/dts/exynos/exynos990-r8s.dts | 115 +++++++++++++++++++
>  2 files changed, 116 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/exynos/exynos990-r8s.dts
>
> diff --git a/arch/arm64/boot/dts/exynos/Makefile b/arch/arm64/boot/dts/exynos/Makefile
> index 7a934499b..948a2c6cb 100644
> --- a/arch/arm64/boot/dts/exynos/Makefile
> +++ b/arch/arm64/boot/dts/exynos/Makefile
> @@ -9,5 +9,6 @@ dtb-$(CONFIG_ARCH_EXYNOS) += \
>  	exynos850-e850-96.dtb		\
>  	exynos8895-dreamlte.dtb		\
>  	exynos990-c1s.dtb		\
> +	exynos990-r8s.dtb               \
>  	exynosautov9-sadk.dtb		\
>  	exynosautov920-sadk.dtb
> diff --git a/arch/arm64/boot/dts/exynos/exynos990-r8s.dts b/arch/arm64/boot/dts/exynos/exynos990-r8s.dts
> new file mode 100644
> index 000000000..b21863bbb
> --- /dev/null
> +++ b/arch/arm64/boot/dts/exynos/exynos990-r8s.dts
> @@ -0,0 +1,115 @@
> +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
> +/*
> + * Samsung Galaxy S20 FE (r8s/SM-G780F) device tree source
> + *
> + * Copyright (c) 2024, Denzeel Oliva <wachiturroxd150@...il.com>
> + */
> +
> +/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 S20 FE";
> +	compatible = "samsung,r8s", "samsung,exynos990";
> +
> +	#address-cells = <2>;
> +	#size-cells = <2>;
> +
> +	chosen {
> +		#address-cells = <2>;
> +		#size-cells = <2>;
> +		ranges;
> +
> +		framebuffer0: framebuffer@...00000 {
> +			compatible = "simple-framebuffer";
> +			reg = <0 0xf1000000 0 (1080 * 2400 * 4)>;
> +			width = <1080>;
> +			height = <2400>;
> +			stride = <(1080 * 4)>;
> +			format = "a8r8g8b8";
> +		};
> +	};
> +
> +	memory@...00000 {
> +		device_type = "memory";
> +		reg = <0x0 0x80000000 0x0 0x3ab00000>,
> +		      /* Memory hole */
> +		      <0x0 0xc1200000 0x0 0x1ee00000>,
> +		      /* Memory hole */
> +		      <0x0 0xe1900000 0x0 0x1e700000>,
> +		      /* Memory hole - last block */
> +		      <0x08 0x80000000 0x0 0x0c000000>;

0x08 -> 0x8

Best regards, Ivo.

> +	};
> +
> +	reserved-memory {
> +		#address-cells = <2>;
> +		#size-cells = <2>;
> +		ranges;
> +
> +		cont_splash_mem: framebuffer@...00000 {
> +			reg = <0 0xf1000000 0 0x13c6800>;
> +			no-map;
> +		};
> +
> +		abox_reserved: audio@...b0000 {
> +			reg = <0 0xf7fb0000 0 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>;
> +		};
> +	};
> +};
> +
> +&oscclk {
> +	clock-frequency = <26000000>;
> +};
> +
> +&pinctrl_alive {
> +	key_power: key-power-pins {
> +		samsung,pins = "gpa2-4";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	key_voldown: key-voldown-pins {
> +		samsung,pins = "gpa0-4";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +
> +	key_volup: key-volup-pins {
> +		samsung,pins = "gpa0-3";
> +		samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
> +		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
> +		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
> +	};
> +};