linux-kernel - Re: [PATCH v3 01/10] ARM: cygnus: fix link failures when CONFIG_COMMON_CLK

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Date:	Thu, 15 Oct 2015 13:28:50 -0700
From:	Scott Branden <sbranden@...adcom.com>
To:	Jon Mason <jonmason@...adcom.com>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...eaurora.org>
CC:	Florian Fainelli <f.fainelli@...il.com>,
	Hauke Mehrtens <hauke@...ke-m.de>, Ray Jui <rjui@...adcom.com>,
	<linux-clk@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>,
	<bcm-kernel-feedback-list@...adcom.com>,
	Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH v3 01/10] ARM: cygnus: fix link failures when
 CONFIG_COMMON_CLK_IPROC is disabled

Jon,

One question below for others to comment on.

On 15-10-15 12:48 PM, Jon Mason wrote:
> From: Arnd Bergmann <arnd@...db.de>
>
> When CONFIG_CYGNUS is set but CONFIG_COMMON_CLK_IPROC is disabled, the
> following link failures are caused:
>
> drivers/built-in.o: In function `cygnus_armpll_init':
> :(.init.text+0x1d290): undefined reference to `iproc_armpll_setup'
> drivers/built-in.o: In function `cygnus_genpll_clk_init':
> :(.init.text+0x1d2c4): undefined reference to `iproc_pll_clk_setup'
> drivers/built-in.o: In function `cygnus_lcpll0_clk_init':
> :(.init.text+0x1d304): undefined reference to `iproc_pll_clk_setup'
> drivers/built-in.o: In function `cygnus_mipipll_clk_init':
> :(.init.text+0x1d344): undefined reference to `iproc_pll_clk_setup'
> drivers/built-in.o: In function `cygnus_asiu_init':
> :(.init.text+0x1d370): undefined reference to `iproc_asiu_setup'
>
> It is fixed it by always selecting COMMON_CLK_IPROC from
> ARCH_BCM_IPROC, and making COMMON_CLK_IPROC a silent option (thus
> preventing it from being erroneously disabled by a user).
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Signed-off-by: Jon Mason <jonmason@...adcom.com>
> ---
>   arch/arm/mach-bcm/Kconfig | 2 +-
>   drivers/clk/bcm/Kconfig   | 4 +---
>   2 files changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
> index 1319c3c..84bd265 100644
> --- a/arch/arm/mach-bcm/Kconfig
> +++ b/arch/arm/mach-bcm/Kconfig
> @@ -14,7 +14,7 @@ config ARCH_BCM_IPROC
>   	select HAVE_ARM_SCU if SMP
>   	select HAVE_ARM_TWD if SMP
>   	select ARM_GLOBAL_TIMER
> -
> +	select COMMON_CLK_IPROC
>   	select CLKSRC_MMIO
>   	select ARCH_REQUIRE_GPIOLIB
>   	select ARM_AMBA
> diff --git a/drivers/clk/bcm/Kconfig b/drivers/clk/bcm/Kconfig
> index 88febf5..46ee475 100644
> --- a/drivers/clk/bcm/Kconfig
> +++ b/drivers/clk/bcm/Kconfig
> @@ -9,10 +9,8 @@ config CLK_BCM_KONA
>   	  in the BCM281xx and BCM21664 families.
>
>   config COMMON_CLK_IPROC
> -	bool "Broadcom iProc clock support"
> -	depends on ARCH_BCM_IPROC
> +	bool
>   	depends on COMMON_CLK
Should these depends on remain?  I think COMMON_CLK_IPROC won't work 
without them.
> -	default ARCH_BCM_IPROC
>   	help
>   	  Enable common clock framework support for Broadcom SoCs
>   	  based on the iProc architecture
>

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