linux-kernel - Re: [PATCH 7/7] mips: pistachio: Allow to enable the external timer based clocksource

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Date:	Fri, 22 May 2015 09:50:16 -0700
From:	Andrew Bresticker <abrestic@...omium.org>
To:	Ezequiel Garcia <ezequiel.garcia@...tec.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linux-MIPS <linux-mips@...ux-mips.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	James Hartley <james.hartley@...tec.com>,
	James Hogan <james.hogan@...tec.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Damien Horsley <Damien.Horsley@...tec.com>,
	Govindraj Raja <Govindraj.Raja@...tec.com>
Subject: Re: [PATCH 7/7] mips: pistachio: Allow to enable the external timer
 based clocksource

On Thu, May 21, 2015 at 2:43 PM, Ezequiel Garcia
<ezequiel.garcia@...tec.com> wrote:
> This commit introduces a new config, so the user can choose to enable
> the General Purpose Timer based clocksource. This option is required
> to have CPUFreq support.
>
> Signed-off-by: Ezequiel Garcia <ezequiel.garcia@...tec.com>
> ---
>  arch/mips/Kconfig           |  1 +
>  arch/mips/pistachio/Kconfig | 13 +++++++++++++
>  2 files changed, 14 insertions(+)
>  create mode 100644 arch/mips/pistachio/Kconfig
>
> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
> index f501665..91f6ca0 100644
> --- a/arch/mips/Kconfig
> +++ b/arch/mips/Kconfig
> @@ -934,6 +934,7 @@ source "arch/mips/jazz/Kconfig"
>  source "arch/mips/jz4740/Kconfig"
>  source "arch/mips/lantiq/Kconfig"
>  source "arch/mips/lasat/Kconfig"
> +source "arch/mips/pistachio/Kconfig"
>  source "arch/mips/pmcs-msp71xx/Kconfig"
>  source "arch/mips/ralink/Kconfig"
>  source "arch/mips/sgi-ip27/Kconfig"
> diff --git a/arch/mips/pistachio/Kconfig b/arch/mips/pistachio/Kconfig
> new file mode 100644
> index 0000000..97731ea
> --- /dev/null
> +++ b/arch/mips/pistachio/Kconfig
> @@ -0,0 +1,13 @@
> +config PISTACHIO_GPTIMER_CLKSRC
> +       bool "Enable General Purpose Timer based clocksource"
> +       depends on MACH_PISTACHIO
> +       select CLKSRC_PISTACHIO
> +       select MIPS_EXTERNAL_TIMER

Why not just select these in the MACH_PISTACHIO Kconfig entry?  Is
there any harm in always having the Pistachio GPT enabled?
--
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