From mboxrd@z Thu Jan  1 00:00:00 1970
From: marex@denx.de (Marek Vasut)
Date: Tue, 8 May 2012 01:40:36 +0200
Subject: [PATCH 5/6] ARM: mxs: do not add dma device by default
In-Reply-To: <1336400595-12964-6-git-send-email-shawn.guo@linaro.org>
References: <1336400595-12964-1-git-send-email-shawn.guo@linaro.org>
 <1336400595-12964-6-git-send-email-shawn.guo@linaro.org>
Message-ID: <201205080140.37047.marex@denx.de>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Dear Shawn Guo,

> From: Dong Aisheng <dong.aisheng@linaro.org>
> 
> This will cause conflict when dt is enabled.
> So let each platform add dma devices respectively.
> 
> Cc: Sascha Hauer <s.hauer@pengutronix.de>
> Cc: Huang Shijie <b32955@freescale.com>
> Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
> Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org>
> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

Ok, I see (ref. 3/5) ... this is good then, screw those nitpicks

Acked-by: Marek Vasut <marex@denx.de>

> ---
>  arch/arm/mach-mxs/devices/platform-dma.c |   23 +----------------------
>  arch/arm/mach-mxs/include/mach/common.h  |    3 +++
>  arch/arm/mach-mxs/mm.c                   |    6 ++++++
>  3 files changed, 10 insertions(+), 22 deletions(-)
> 
> diff --git a/arch/arm/mach-mxs/devices/platform-dma.c
> b/arch/arm/mach-mxs/devices/platform-dma.c index aff4813..4682450 100644
> --- a/arch/arm/mach-mxs/devices/platform-dma.c
> +++ b/arch/arm/mach-mxs/devices/platform-dma.c
> @@ -14,7 +14,7 @@
>  #include <mach/mx28.h>
>  #include <mach/devices-common.h>
> 
> -static struct platform_device *__init mxs_add_dma(const char *devid,
> +struct platform_device *__init mxs_add_dma(const char *devid,
>  						resource_size_t base)
>  {
>  	struct resource res[] = {
> @@ -29,24 +29,3 @@ static struct platform_device *__init mxs_add_dma(const
> char *devid, res, ARRAY_SIZE(res), NULL, 0,
>  				DMA_BIT_MASK(32));
>  }
> -
> -static int __init mxs_add_mxs_dma(void)
> -{
> -	char *mx23_apbh = "imx23-dma-apbh";
> -	char *mx23_apbx = "imx23-dma-apbx";
> -	char *mx28_apbh = "imx28-dma-apbh";
> -	char *mx28_apbx = "imx28-dma-apbx";
> -
> -	if (cpu_is_mx23()) {
> -		mxs_add_dma(mx23_apbh, MX23_APBH_DMA_BASE_ADDR);
> -		mxs_add_dma(mx23_apbx, MX23_APBX_DMA_BASE_ADDR);
> -	}
> -
> -	if (cpu_is_mx28()) {
> -		mxs_add_dma(mx28_apbh, MX28_APBH_DMA_BASE_ADDR);
> -		mxs_add_dma(mx28_apbx, MX28_APBX_DMA_BASE_ADDR);
> -	}
> -
> -	return 0;
> -}
> -arch_initcall(mxs_add_mxs_dma);
> diff --git a/arch/arm/mach-mxs/include/mach/common.h
> b/arch/arm/mach-mxs/include/mach/common.h index 84af61c..5f9a358 100644
> --- a/arch/arm/mach-mxs/include/mach/common.h
> +++ b/arch/arm/mach-mxs/include/mach/common.h
> @@ -31,4 +31,7 @@ extern void mx28_init_irq(void);
> 
>  extern void icoll_init_irq(void);
> 
> +extern struct platform_device *mxs_add_dma(const char *devid,
> +						resource_size_t base);
> +
>  #endif /* __MACH_MXS_COMMON_H__ */
> diff --git a/arch/arm/mach-mxs/mm.c b/arch/arm/mach-mxs/mm.c
> index 67a384e..6af4371 100644
> --- a/arch/arm/mach-mxs/mm.c
> +++ b/arch/arm/mach-mxs/mm.c
> @@ -66,9 +66,15 @@ void __init mx28_init_irq(void)
>  void __init mx23_soc_init(void)
>  {
>  	pinctrl_provide_dummies();
> +
> +	mxs_add_dma("imx23-dma-apbh", MX23_APBH_DMA_BASE_ADDR);
> +	mxs_add_dma("imx23-dma-apbx", MX23_APBX_DMA_BASE_ADDR);
>  }
> 
>  void __init mx28_soc_init(void)
>  {
>  	pinctrl_provide_dummies();
> +
> +	mxs_add_dma("imx28-dma-apbh", MX23_APBH_DMA_BASE_ADDR);
> +	mxs_add_dma("imx28-dma-apbx", MX23_APBX_DMA_BASE_ADDR);
>  }