linux-kernel - Re: [PATCH 4/6] dmaengine: at_hdmac: use subsys_initcall instead of module

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Date:	Fri, 14 Jan 2011 16:27:07 -0800
From:	Dan Williams <dan.j.williams@...el.com>
To:	Nicolas Ferre <nicolas.ferre@...el.com>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	hong.xu@...el.com
Subject: Re: [PATCH 4/6] dmaengine: at_hdmac: use subsys_initcall instead of module_init

On Wed, Jan 12, 2011 at 6:39 AM, Nicolas Ferre <nicolas.ferre@...el.com> wrote:
> From: Eric Xu <hong.xu@...el.com>
>
> Use subsys_initcall instead of module_init in order to keep DMA engine rolling
> before other peripheral drivers.
>
> Signed-off-by: Eric Xu <hong.xu@...el.com>
> Signed-off-by: Nicolas Ferre <nicolas.ferre@...el.com>
> ---
>  drivers/dma/at_hdmac.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
> index 4f83431..a1a0fc6 100644
> --- a/drivers/dma/at_hdmac.c
> +++ b/drivers/dma/at_hdmac.c
> @@ -1209,7 +1209,7 @@ static int __init at_dma_init(void)
>  {
>        return platform_driver_probe(&at_dma_driver, at_dma_probe);
>  }
> -module_init(at_dma_init);
> +subsys_initcall(at_dma_init);

If this matters shouldn't we also do this?

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 1b61d3a..4d14626 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -90,7 +90,7 @@ config DW_DMAC
          can be integrated in chips such as the Atmel AT32ap7000.

 config AT_HDMAC
-       tristate "Atmel AHB DMA support"
+       bool "Atmel AHB DMA support"
        depends on ARCH_AT91SAM9RL || ARCH_AT91SAM9G45
        select DMA_ENGINE
        help
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