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