linux-kernel - Re: [PATCH 6/6] ARM: shmobile: kzm9d-reference: Use common clock framework

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Date:	Tue, 24 Sep 2013 13:55:36 +0900
From:	Simon Horman <horms@...ge.net.au>
To:	takasi-y@....dti.ne.jp
Cc:	SH-Linux <linux-sh@...r.kernel.org>,
	Magnus Damm <magnus.damm@...il.com>, ben.dooks@...ethink.co.uk,
	Shinya Kuribayashi <shinya.kuribayashi.px@...esas.com>,
	devicetree@...r.kernel.org, linux-serial@...r.kernel.org,
	Paul Mundt <lethal@...ux-sh.org>,
	Mike Turquette <mturquette@...aro.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/6] ARM: shmobile: kzm9d-reference: Use common clock
 framework

On Tue, Sep 24, 2013 at 01:17:03PM +0900, takasi-y@....dti.ne.jp wrote:
> Use common clock framework version of clock
>  drivers/clk/shmobile/clk-emev2.c
> instead of sh-clkfwk version
>  arch/arm/mach-shmobile/clock-emev2.c
> 
> kzm9d(without -reference) still uses sh-clkfwk version.
> 
> Because two of that framework can not live in one kernel binary,
> there will be SoCs and Boards that can not be in one binary as
> multiplatform binary or so.
> For example, kzm9d and kzm9d-reference is now exclusive.
> 
> Signed-off-by: Takashi Yoshii <takashi.yoshii.zj@...esas.com>

Magnus, could you confirm whether or not you would like
common clocks to be mandatory for -reference in the near-term?

> ---
>  arch/arm/mach-shmobile/Kconfig                 | 1 +
>  arch/arm/mach-shmobile/board-kzm9d-reference.c | 5 ++---
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
> index 50bab8d..d20d4ce 100644
> --- a/arch/arm/mach-shmobile/Kconfig
> +++ b/arch/arm/mach-shmobile/Kconfig
> @@ -237,6 +237,7 @@ config MACH_KZM9D_REFERENCE
>  	depends on ARCH_EMEV2
>  	select REGULATOR_FIXED_VOLTAGE if REGULATOR
>  	select USE_OF
> +	select COMMON_CLK
>  	---help---
>  	   Use reference implementation of KZM9D board support
>  	   which makes a greater use of device tree at the expense
> diff --git a/arch/arm/mach-shmobile/board-kzm9d-reference.c b/arch/arm/mach-shmobile/board-kzm9d-reference.c
> index 8f8bb2f..e0b8317 100644
> --- a/arch/arm/mach-shmobile/board-kzm9d-reference.c
> +++ b/arch/arm/mach-shmobile/board-kzm9d-reference.c
> @@ -20,15 +20,14 @@
>  
>  #include <linux/init.h>
>  #include <linux/of_platform.h>
> +#include <linux/clk-provider.h>
>  #include <mach/emev2.h>
>  #include <mach/common.h>
>  #include <asm/mach/arch.h>
>  
>  static void __init kzm9d_add_standard_devices(void)
>  {
> -	if (!IS_ENABLED(CONFIG_COMMON_CLK))
> -		emev2_clock_init();
> -
> +	of_clk_init(NULL);
>  	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
>  }
>  
> -- 
> 1.8.1.5
> 
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