linux-kernel - Re: [RFC PATCH v4 13/13] soc: ti: am6: Enable interrupt controller drivers

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Date:   Tue, 15 Jan 2019 07:54:57 -0600
From:   Nishanth Menon <nm@...com>
To:     Lokesh Vutla <lokeshvutla@...com>
CC:     <marc.zyngier@....com>, Santosh Shilimkar <ssantosh@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, <tglx@...utronix.de>,
        <jason@...edaemon.net>,
        Linux ARM Mailing List <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, Tero Kristo <t-kristo@...com>,
        Sekhar Nori <nsekhar@...com>,
        Device Tree Mailing List <devicetree@...r.kernel.org>,
        Peter Ujfalusi <peter.ujfalusi@...com>
Subject: Re: [RFC PATCH v4 13/13] soc: ti: am6: Enable interrupt controller
 drivers

On 11:43-20181227, Lokesh Vutla wrote:
> Select all the TISCI dependent interrupt controller drivers
> for AM6 SoC.
> 
> Suggested-by: Marc Zyngier <marc.zyngier@....com>
> Signed-off-by: Lokesh Vutla <lokeshvutla@...com>
> ---
>  drivers/soc/ti/Kconfig | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/soc/ti/Kconfig b/drivers/soc/ti/Kconfig
> index 7640490c2a6a..145b701a3d96 100644
> --- a/drivers/soc/ti/Kconfig
> +++ b/drivers/soc/ti/Kconfig
> @@ -5,6 +5,11 @@ if ARCH_K3
>  
>  config ARCH_K3_AM6_SOC
>  	bool "K3 AM6 SoC"
> +	select MAILBOX
> +	select TI_MESSAGE_MANAGER
> +	select TI_SCI_PROTOCOL
> +	select TI_SCI_INTR_IRQCHIP
> +	select TI_SCI_INTA_IRQCHIP

Sorry for joining the party late.. but just 2 cents for thought..

Is'nt imply better than select here? for a very tiny kernel, it is
possible to boot kernel up and TISCI and mailbox could be modules as
well.. I know it is a theoretical concept, but it may be helpful (esp
during pre-silicon time frame, at least during start, I usually start
with almost everything other than the CPU cores and PSCI disabled).
there is not much you can do with it ofcourse, but it helps me with a
clean start.


>  	help
>  	  Enable support for TI's AM6 SoC Family support
>  
> -- 
> 2.19.2
> 

-- 
Regards,
Nishanth Menon