Re: [RFC PATCH v3 02/16] ARM: davinci: move private EDMA API to arm/common

[Sekhar Nori <nsekhar-l0cyMroinI0@public.gmane.org>]

On 10/18/2012 6:56 PM, Matt Porter wrote:
> Move mach-davinci/dma.c to common/edma.c so it can be used
> by OMAP (specifically AM33xx) as well. This just moves the
> private EDMA API but does not support OMAP.
> 
> Signed-off-by: Matt Porter <mporter-l0cyMroinI0@public.gmane.org>
> ---

> diff --git a/arch/arm/mach-davinci/devices.c b/arch/arm/mach-davinci/devices.c
> index 4c48a36..f45d591 100644
> --- a/arch/arm/mach-davinci/devices.c
> +++ b/arch/arm/mach-davinci/devices.c
> @@ -19,9 +19,10 @@
>  #include <mach/irqs.h>
>  #include <mach/cputype.h>
>  #include <mach/mux.h>
> -#include <mach/edma.h>
>  #include <linux/platform_data/mmc-davinci.h>
>  #include <mach/time.h>
> +#include <linux/platform_data/edma.h>

Can you please introduce a patch to clean this mixture of linux/ and
mach/ includes?

> +
>  
>  #include "davinci.h"
>  #include "clock.h"
> @@ -141,10 +142,10 @@ static struct resource mmcsd0_resources[] = {
>  	},
>  	/* DMA channels: RX, then TX */
>  	{
> -		.start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCRXEVT),
> +		.start = EDMA_CTLR_CHAN(0, 26),

Instead of just replacing the event #defines with plain numbers, can you
introduce a mach-davinci local edma.h which can then be included in the
davinci platform files which refer to edma channel numbers?

> diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
> index 7cd56ed..153fab8 100644
> --- a/arch/arm/plat-omap/Kconfig
> +++ b/arch/arm/plat-omap/Kconfig
> @@ -28,6 +28,7 @@ config ARCH_OMAP2PLUS
>  	select OMAP_DM_TIMER
>  	select PROC_DEVICETREE if PROC_FS
>  	select SPARSE_IRQ
> +	select TI_PRIV_EDMA

This hunk does not seem to belong to subject of this patch.

>  	select USE_OF
>  	help
>  	  "Systems based on OMAP2, OMAP3, OMAP4 or OMAP5"

> diff --git a/include/linux/platform_data/edma.h b/include/linux/platform_data/edma.h
> new file mode 100644
> index 0000000..7396f0b3
> --- /dev/null
> +++ b/include/linux/platform_data/edma.h
> @@ -0,0 +1,198 @@
> +/*
> + *  TI DAVINCI dma definitions
> + *
> + *  Copyright (C) 2006-2009 Texas Instruments.
> + *
> + *  This program is free software; you can redistribute  it and/or modify it
> + *  under  the terms of  the GNU General  Public License as published by the
> + *  Free Software Foundation;  either version 2 of the  License, or (at your
> + *  option) any later version.
> + *
> + *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
> + *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
> + *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
> + *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
> + *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
> + *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
> + *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
> + *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
> + *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
> + *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

> + *  You should have received a copy of the  GNU General Public License along
> + *  with this program; if not, write  to the Free Software Foundation, Inc.,
> + *  675 Mass Ave, Cambridge, MA 02139, USA.

This part can be dropped, I suppose ;-)

Thanks,
Sekhar