Re: [PATCH 05/10] ARM: dts: Add exynos3250-artik5 dtsi file for ARTIK5 module

[Krzysztof Kozlowski]

On 14.03.2016 11:04, Chanwoo Choi wrote:
> This patch adds the support for Device Tree source for Samsung ARTIK5 module[1]
> based on Exynos3250 SoC. The ARTIK5 module includes the follwoing devices:
> - Application Processor (Samsung Exynos3250)
> - WiFi/BT Combo chip (Broadcom4354)
> - PMIC (Samsung S2MPS14)
> - eMMC (4GB)
> - DRAM LPDDR3 (512MB)
> - Connectors pin (60 Pins x 3 set)
> 
> Also, this patch adds the ARTIK5 development board[2] dts file which includes
> the ARTIK5 module[1] and have the devices such as sound codec, sd card port,
> ethernet port, uart port and so on.
> 
> [1] https://www.artik.io/hardware/artik-5
> [2] http://www.digikey.com/product-search/en?FV=ffecca14
> 
> Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
> Signed-off-by: Andi Shyti <andi.shyti@xxxxxxxxxxx>
> ---
>  arch/arm/boot/dts/Makefile                    |   1 +
>  arch/arm/boot/dts/exynos3250-artik5-devel.dts |  26 +++
>  arch/arm/boot/dts/exynos3250-artik5.dtsi      | 282 ++++++++++++++++++++++++++

Plus changes in
Documentation/devicetree/bindings/arm/samsung/samsung-boards.txt.

>  3 files changed, 309 insertions(+)
>  create mode 100644 arch/arm/boot/dts/exynos3250-artik5-devel.dts
>  create mode 100644 arch/arm/boot/dts/exynos3250-artik5.dtsi
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index a4a6d70e8b26..f2de160828e8 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -108,6 +108,7 @@ dtb-$(CONFIG_ARCH_DIGICOLOR) += \
>  dtb-$(CONFIG_ARCH_EFM32) += \
>  	efm32gg-dk3750.dtb
>  dtb-$(CONFIG_ARCH_EXYNOS3) += \
> +	exynos3250-artik5-devel.dtb \
>  	exynos3250-monk.dtb \
>  	exynos3250-rinato.dtb
>  dtb-$(CONFIG_ARCH_EXYNOS4) += \
> diff --git a/arch/arm/boot/dts/exynos3250-artik5-devel.dts b/arch/arm/boot/dts/exynos3250-artik5-devel.dts
> new file mode 100644
> index 000000000000..d17c28969118
> --- /dev/null
> +++ b/arch/arm/boot/dts/exynos3250-artik5-devel.dts
> @@ -0,0 +1,26 @@
> +/*
> + * Samsung's Exynos3250 based ARTIK5 development board device tree source
> + *
> + * Copyright (c) 2016 Samsung Electronics Co., Ltd.
> + *		http://www.samsung.com
> + *
> + * Device tree source file for Samsung's ARTIK5 development board
> + * which is based on Samsung Exynos3250 SoC.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +/dts-v1/;
> +#include "exynos3250-artik5.dtsi"
> +
> +/ {
> +	model = "Samsung ARTIK5 development board";
> +	compatible = "samsung,artik5-devel", "samsung,artik5",
> +			"samsung,exynos3250", "samsung,exynos3";
> +};
> +
> +&serial_2 {
> +	status = "okay";
> +};
> diff --git a/arch/arm/boot/dts/exynos3250-artik5.dtsi b/arch/arm/boot/dts/exynos3250-artik5.dtsi
> new file mode 100644
> index 000000000000..97d0087efb9f
> --- /dev/null
> +++ b/arch/arm/boot/dts/exynos3250-artik5.dtsi
> @@ -0,0 +1,282 @@
> +/*
> + * Samsung's Exynos3250 based ARTIK5 module device tree source
> + *
> + * Copyright (c) 2016 Samsung Electronics Co., Ltd.
> + *		http://www.samsung.com
> + *
> + * Device tree source file for Samsung's ARTIK5 module which is based on
> + * Samsung Exynos3250 SoC.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +#include "exynos3250.dtsi"
> +#include <dt-bindings/clock/samsung,s2mps11.h>
> +
> +/ {
> +	compatible = "samsung,artik5", "samsung,exynos3250", "samsung,exynos3";
> +
> +

Leave only one blank line.

> +	chosen {
> +		linux,stdout = &serial_2;

'stdout-path' should be used (linux,stdout is deprecated).

> +	};
> +
> +	memory {
> +		reg =  <0x40000000 0x1ff00000>;

Just one space after '='.

> +	};
> +
> +	firmware@0205F000 {
> +		compatible = "samsung,secure-firmware";
> +		reg = <0x0205F000 0x1000>;

Let stick to one convention of letter case for hex numbers. Lower-case
maybe, so 0205f000?

> +	};
> +};
> +
> +&i2c_0 {
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +	samsung,i2c-sda-delay = <100>;
> +	samsung,i2c-slave-addr = <0x10>;
> +	samsung,i2c-max-bus-freq = <100000>;
> +	status = "okay";
> +
> +	s2mps14_pmic@66 {
> +		compatible = "samsung,s2mps14-pmic";
> +		interrupt-parent = <&gpx3>;
> +		interrupts = <5 0>;

IRQ_TYPE_NONE

> +		reg = <0x66>;
> +		wakeup;

This is not valid property and is ignored. Probably you meant
'wakeup_source' (which would still be ignored by sec-core driver by the
way... fixing this is waiting on Exynos mainline todo list :) ).

Best regards,
Krzysztof