linux-kernel - Re: [PATCH 1/6] ARM: sunxi: Add Machine support for A33

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Message-ID: <554F1BAF.8020709@redhat.com>
Date:	Sun, 10 May 2015 10:49:51 +0200
From:	Hans de Goede <hdegoede@...hat.com>
To:	Vishnu Patekar <vishnupatekar0510@...il.com>,
	maxime.ripard@...e-electrons.com, emilio@...pez.com.ar,
	linus.walleij@...aro.org, robh+dt@...nel.org
CC:	wens@...e.org, jenskuske@...il.com, arnd@...db.de,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-sunxi@...glegroups.com, devicetree@...r.kernel.org
Subject: Re: [PATCH 1/6] ARM: sunxi: Add Machine support for A33

Hi,

On 10-05-15 08:46, Vishnu Patekar wrote:
> Allwinnner A33 quad core cortex-a7 based SOC.
> It is similar to A23.
>
> Renamed cpu method to "allwinner,sun8i" for common sun8i smp.
> smp code is generic for A23, A33 and hopefully H3.
>
> Signed-off-by: Vishnu Patekar <vishnupatekar0510@...il.com>
> ---
>   Documentation/devicetree/bindings/arm/sunxi.txt | 1 +
>   arch/arm/mach-sunxi/Kconfig                     | 2 +-
>   arch/arm/mach-sunxi/platsmp.c                   | 2 +-
>   arch/arm/mach-sunxi/sunxi.c                     | 4 ++--
>   4 files changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/arm/sunxi.txt b/Documentation/devicetree/bindings/arm/sunxi.txt
> index 42941fd..e32f082 100644
> --- a/Documentation/devicetree/bindings/arm/sunxi.txt
> +++ b/Documentation/devicetree/bindings/arm/sunxi.txt
> @@ -9,4 +9,5 @@ using one of the following compatible strings:
>     allwinner,sun6i-a31
>     allwinner,sun7i-a20
>     allwinner,sun8i-a23
> +  allwinner,sun8i-a33
>     allwinner,sun9i-a80
> diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
> index 81502b9..38bedd8 100644
> --- a/arch/arm/mach-sunxi/Kconfig
> +++ b/arch/arm/mach-sunxi/Kconfig
> @@ -35,7 +35,7 @@ config MACH_SUN7I
>   	select SUN5I_HSTIMER
>
>   config MACH_SUN8I
> -	bool "Allwinner A23 (sun8i) SoCs support"
> +	bool "Allwinner (sun8i) SoCs support"
>   	default ARCH_SUNXI
>   	select ARM_GIC
>   	select MFD_SUN6I_PRCM
> diff --git a/arch/arm/mach-sunxi/platsmp.c b/arch/arm/mach-sunxi/platsmp.c
> index e8483ec..c56b501 100644
> --- a/arch/arm/mach-sunxi/platsmp.c
> +++ b/arch/arm/mach-sunxi/platsmp.c
> @@ -189,4 +189,4 @@ struct smp_operations sun8i_smp_ops __initdata = {
>   	.smp_prepare_cpus	= sun8i_smp_prepare_cpus,
>   	.smp_boot_secondary	= sun8i_smp_boot_secondary,
>   };
> -CPU_METHOD_OF_DECLARE(sun8i_a23_smp, "allwinner,sun8i-a23", &sun8i_smp_ops);
> +CPU_METHOD_OF_DECLARE(sun8i_smp, "allwinner,sun8i", &sun8i_smp_ops);
> diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c
> index 1bc811a..8937d0d 100644
> --- a/arch/arm/mach-sunxi/sunxi.c
> +++ b/arch/arm/mach-sunxi/sunxi.c
> @@ -66,11 +66,11 @@ DT_MACHINE_START(SUN7I_DT, "Allwinner sun7i (A20) Family")
>   MACHINE_END
>
>   static const char * const sun8i_board_dt_compat[] = {
> -	"allwinner,sun8i-a23",
> +	"allwinner,sun8i",
>   	NULL,
>   };

This is wrong it should be:

static const char * const sun8i_board_dt_compat[] = {
	"allwinner,sun8i-a23",
	"allwinner,sun8i-a33",
  	NULL,
};

To match what you've said it will be in Documentation/devicetree/bindings/arm/sunxi.txt
(which is correct).

Otherwise this patch looks good, thanks for your work on this.

Regards,

Hans


>
> -DT_MACHINE_START(SUN8I_DT, "Allwinner sun8i (A23) Family")
> +DT_MACHINE_START(SUN8I_DT, "Allwinner sun8i Family")
>   	.dt_compat	= sun8i_board_dt_compat,
>   	.init_late	= sunxi_dt_cpufreq_init,
>   MACHINE_END
>
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