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From:   Geert Uytterhoeven <geert@linux-m68k.org>
Date:   Mon, 8 May 2023 12:55:28 +0200
Message-ID: <CAMuHMdV4hDULr43_4Z=Q9EHEvbzGStMRY45d4Ja1ixqSvMd2Cg@mail.gmail.com>
Subject: Re: [PATCH 2/2] sh: dma: Correct the number of DMA channels in SH7709
To:     Artur Rojek <contact@artur-rojek.eu>
Cc:     Yoshinori Sato <ysato@users.sourceforge.jp>,
        Rich Felker <dalias@libc.org>,
        John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
        Rafael Ignacio Zurita <rafaelignacio.zurita@gmail.com>,
        linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org
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On Sat, May 6, 2023 at 4:22 PM Artur Rojek <contact@artur-rojek.eu> wrote:
> According to the PM, the DMAC found in SH7709 features only 4 channels.
>
> Signed-off-by: Artur Rojek <contact@artur-rojek.eu>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

> --- a/arch/sh/drivers/dma/Kconfig
> +++ b/arch/sh/drivers/dma/Kconfig
> @@ -28,8 +28,9 @@ config SH_DMA_API
>  config NR_ONCHIP_DMA_CHANNELS
>         int
>         depends on SH_DMA
> -       default "4" if CPU_SUBTYPE_SH7750  || CPU_SUBTYPE_SH7751  || \
> -                      CPU_SUBTYPE_SH7750S || CPU_SUBTYPE_SH7091
> +       default "4" if CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7750  || \
> +                      CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7750S || \
> +                      CPU_SUBTYPE_SH7091
>         default "8" if CPU_SUBTYPE_SH7750R || CPU_SUBTYPE_SH7751R || \
>                        CPU_SUBTYPE_SH7760
>         default "12" if CPU_SUBTYPE_SH7723 || CPU_SUBTYPE_SH7780  || \
> @@ -37,8 +38,9 @@ config NR_ONCHIP_DMA_CHANNELS
>         default "6"
>         help
>           This allows you to specify the number of channels that the on-chip
> -         DMAC supports. This will be 4 for SH7750/SH7751/Sh7750S/SH7091 and 8 for the

Might be a good opportunity to s/Sh7750S/SH7750S/

> -         SH7750R/SH7751R/SH7760, 12 for the SH7723/SH7780/SH7785/SH7724, default is 6.
> +         DMAC supports. This will be 4 for SH7709/SH7750/SH7751/Sh7750S/SH7091
> +         and 8 for the SH7750R/SH7751R/SH7760, 12 for the SH7723/SH7780/SH7785/SH7724,

... and sort the list for SoCs with 12 channels.

> +         default is 6.
>
>  config SH_DMABRG
>         bool "SH7760 DMABRG support"

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds