linux-kernel - Re: [2/2] arm64: EXYNOS: Consolidate ARCH_EXYNOS7 symbol into ARCH

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Date:	Thu, 19 Nov 2015 09:34:06 +0530
From:	Alim Akhtar <alim.akhtar@...sung.com>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Sylwester Nawrocki <s.nawrocki@...sung.com>,
	Tomasz Figa <tomasz.figa@...il.com>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	linux-samsung-soc@...r.kernel.org, linux-clk@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Kukjin Kim <kgene@...nel.org>, Olof Johansson <olof@...om.net>,
	Arnd Bergmann <arnd@...db.de>,
	linux-arm-kernel@...ts.infradead.org,
	Kevin Hilman <khilman@...aro.org>
Cc:	Pankaj Dubey <pankaj.dubey@...sung.com>
Subject: Re: [2/2] arm64: EXYNOS: Consolidate ARCH_EXYNOS7 symbol into
 ARCH_EXYNOS

Hi Krzysztof,

On 11/16/2015 07:06 AM, Krzysztof Kozlowski wrote:
> The ARMv8 Exynos family SoCs in Linux kernel are currently:
>   - Exynos5433 (controlled by ARCH_EXYNOS),
>   - Exynos7 (controlled by ARCH_EXYNOS7).
>
> It duplicates Kconfig symbols unnecessarily, so consolidate them into
> one ARCH_EXYNOS. Future SoCs could fall also under the ARCH_EXYNOS
> symbol.
>
> The commit should not bring any visible functional change.
>
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> Reviewed-by: Chanwoo Choi <cw00.choi@...sung.com>
> Reviewed-by: Pankaj Dubey <pankaj.dubey@...sung.com>
>

Tested on exynos7-espresso board, so
Tested-by: Alim Akhtar <alim.akhtar@...sung.com>

> ---
> arch/arm64/Kconfig.platforms        | 11 ++---------
>   arch/arm64/boot/dts/exynos/Makefile |  2 +-
>   arch/arm64/configs/defconfig        |  2 +-
>   3 files changed, 4 insertions(+), 11 deletions(-)
>
> diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
> index 4043c35962cc..afa19baca94e 100644
> --- a/arch/arm64/Kconfig.platforms
> +++ b/arch/arm64/Kconfig.platforms
> @@ -13,21 +13,14 @@ config ARCH_BERLIN
>   	  This enables support for Marvell Berlin SoC Family
>
>   config ARCH_EXYNOS
> -	bool
> -	help
> -	  This enables support for Samsung Exynos SoC family
> -
> -config ARCH_EXYNOS7
> -	bool "ARMv8 based Samsung Exynos7"
> -	select ARCH_EXYNOS
> +	bool "ARMv8 based Samsung Exynos SoC family"
>   	select COMMON_CLK_SAMSUNG
>   	select HAVE_S3C2410_WATCHDOG if WATCHDOG
>   	select HAVE_S3C_RTC if RTC_CLASS
>   	select PINCTRL
>   	select PINCTRL_EXYNOS
> -
>   	help
> -	  This enables support for Samsung Exynos7 SoC family
> +	  This enables support for Samsung Exynos ARMv8 SoC family
>
>   config ARCH_LAYERSCAPE
>   	bool "ARMv8 based Freescale Layerscape SoC family"
> diff --git a/arch/arm64/boot/dts/exynos/Makefile b/arch/arm64/boot/dts/exynos/Makefile
> index 20310e5b6d6f..50c9b9383cfa 100644
> --- a/arch/arm64/boot/dts/exynos/Makefile
> +++ b/arch/arm64/boot/dts/exynos/Makefile
> @@ -1,4 +1,4 @@
> -dtb-$(CONFIG_ARCH_EXYNOS7) += exynos7-espresso.dtb
> +dtb-$(CONFIG_ARCH_EXYNOS) += exynos7-espresso.dtb
>
>   always		:= $(dtb-y)
>   subdir-y	:= $(dts-dirs)
> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
> index bdd7aa358d2a..a396fa7c69a5 100644
> --- a/arch/arm64/configs/defconfig
> +++ b/arch/arm64/configs/defconfig
> @@ -33,7 +33,7 @@ CONFIG_MODULE_UNLOAD=y
>   # CONFIG_IOSCHED_DEADLINE is not set
>   CONFIG_ARCH_BCM_IPROC=y
>   CONFIG_ARCH_BERLIN=y
> -CONFIG_ARCH_EXYNOS7=y
> +CONFIG_ARCH_EXYNOS=y
>   CONFIG_ARCH_LAYERSCAPE=y
>   CONFIG_ARCH_HISI=y
>   CONFIG_ARCH_MEDIATEK=y
>
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