linux-kernel - Re: [PATCH v2 4/8] RISC-V: Kconfig.socs: Add Renesas RZ/Five SoC kconfig option

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Message-ID: <d9d0deef-92e1-05b4-a195-d2ca03801129@microchip.com>
Date:   Mon, 15 Aug 2022 19:10:04 +0000
From:   <Conor.Dooley@...rochip.com>
To:     <prabhakar.mahadev-lad.rj@...renesas.com>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <paul.walmsley@...ive.com>,
        <palmer@...belt.com>, <aou@...s.berkeley.edu>,
        <geert+renesas@...der.be>
CC:     <anup@...infault.org>, <linux-renesas-soc@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-riscv@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <prabhakar.csengg@...il.com>,
        <biju.das.jz@...renesas.com>
Subject: Re: [PATCH v2 4/8] RISC-V: Kconfig.socs: Add Renesas RZ/Five SoC
 kconfig option

On 15/08/2022 16:14, Lad Prabhakar wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> Introduce SOC_RENESAS_RZFIVE config option to enable Renesas RZ/Five
> (R9A07G043) SoC, along side also add ARCH_RENESAS config option as most
> of the Renesas drivers depend on this config option.

Hey Lad,

I think I said something similar on v1, but I said it again
to Samuel today so I may as well repost here too:
"I think this and patch 12/12 with the defconfig changes should be
deferred until post LPC (which still leaves plenty of time for
making the 6.1 merge window). We already have like 4 different
approaches between the existing SOC_FOO symbols & two more when
D1 stuff and the Renesas stuff is considered.

Plan is to decide at LPC on one approach for what to do with
Kconfig.socs & to me it seems like a good idea to do what's being
done here - it's likely that further arm vendors will move and
keeping the common symbols makes a lot of sense to me..."

Also, for the sake of my OCD could you pick either riscv or
RISC-V and use it for the whole series? Pedantic I guess, but
/shrug

Thanks,
Conor.

> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> ---
> v1->v2
> * No Change
> ---
>  arch/riscv/Kconfig.socs | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs
> index 69774bb362d6..91b7f38b77a8 100644
> --- a/arch/riscv/Kconfig.socs
> +++ b/arch/riscv/Kconfig.socs
> @@ -80,4 +80,18 @@ config SOC_CANAAN_K210_DTB_SOURCE
> 
>  endif # SOC_CANAAN
> 
> +config ARCH_RENESAS
> +       bool
> +       select GPIOLIB
> +       select PINCTRL
> +       select SOC_BUS
> +
> +config SOC_RENESAS_RZFIVE
> +       bool "Renesas RZ/Five SoC"
> +       select ARCH_R9A07G043
> +       select ARCH_RENESAS
> +       select RESET_CONTROLLER
> +       help
> +         This enables support for Renesas RZ/Five SoC.
> +
>  endmenu # "SoC selection"
> --
> 2.25.1
>