linux-kernel - Re: [PATCH] clk: renesas: build clk-rcar-gen2.o for R8A7792

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Date:	Mon, 20 Jun 2016 20:34:24 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Arnd Bergmann <arnd@...db.de>,
	Simon Horman <horms+renesas@...ge.net.au>,
	Magnus Damm <damm+renesas@...nsource.se>
Cc:	Geert Uytterhoeven <geert+renesas@...der.be>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] clk: renesas: build clk-rcar-gen2.o for R8A7792

Hello.

On 06/20/2016 06:43 PM, Arnd Bergmann wrote:

> The newly added support for R8A7792 causes build failures
> because we try to call rcar_gen2_clocks_init but that is not
> built into the kernel:
>
> arch/arm/mach-shmobile/built-in.o: In function `rcar_gen2_timer_init':
> :(.init.text+0x3b0): undefined reference to `rcar_gen2_clocks_init'
>
> This changes the clk Makefile to match the other platforms, though
> I guess it would be better to find another way to do this, e.g.
> by not requiring the external function call by relying on
> CLK_OF_DECLARE(), or by making the ARCH_RCAR_GEN2 also control
> the compilation of the clk driver.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Fixes: 3ebee0adbfe7 ("ARM: shmobile: r8a7792: basic SoC support")
> ---
>  drivers/clk/renesas/Makefile | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile
> index ead8bb843524..3cdb9aaf8717 100644
> --- a/drivers/clk/renesas/Makefile
> +++ b/drivers/clk/renesas/Makefile
> @@ -6,6 +6,7 @@ obj-$(CONFIG_ARCH_R8A7778)		+= clk-r8a7778.o
>  obj-$(CONFIG_ARCH_R8A7779)		+= clk-r8a7779.o
>  obj-$(CONFIG_ARCH_R8A7790)		+= clk-rcar-gen2.o clk-div6.o
>  obj-$(CONFIG_ARCH_R8A7791)		+= clk-rcar-gen2.o clk-div6.o
> +obj-$(CONFIG_ARCH_R8A7792)		+= clk-rcar-gen2.o
>  obj-$(CONFIG_ARCH_R8A7793)		+= clk-rcar-gen2.o clk-div6.o
>  obj-$(CONFIG_ARCH_R8A7794)		+= clk-rcar-gen2.o clk-div6.o
>  obj-$(CONFIG_ARCH_R8A7795)		+= r8a7795-cpg-mssr.o

    It was in the very first patch that I submitted for this SoC:

    http://marc.info/?t=146421262300001&r=1

    It should be queued up by Geert.

MBR, Sergei