From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sekhar Nori Subject: Re: [RFC PATCH v3 02/16] ARM: davinci: move private EDMA API to arm/common Date: Tue, 22 Jan 2013 21:10:06 +0530 Message-ID: <50FEB2D6.50300@ti.com> References: <1350566815-409-1-git-send-email-mporter@ti.com> <1350566815-409-3-git-send-email-mporter@ti.com> <508CEA05.8060200@ti.com> <20130110235157.GU14660@beef> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20130110235157.GU14660@beef> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org Sender: "devicetree-discuss" To: Matt Porter Cc: Linux DaVinci Kernel List , Chris Ball , Russell King , Linux Documentation List , Devicetree Discuss , Mark Brown , Linux MMC List , Linux Kernel Mailing List , Rob Herring , Vinod Koul , Dan Williams , Linux SPI Devel List , Linux OMAP List , Linux ARM Kernel List List-Id: devicetree@vger.kernel.org Matt, Sorry about the late reply. I noticed this mail only after I started to look at v5 of your series :( On 1/11/2013 5:21 AM, Matt Porter wrote: > On Sun, Oct 28, 2012 at 01:47:09PM +0530, Sekhar Nori wrote: >> 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 >>> --- >> >>> 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 >>> #include >>> #include >>> -#include >>> #include >>> #include >>> +#include >> >> Can you please introduce a patch to clean this mixture of linux/ and >> mach/ includes? > > Yeah, are you ok with a follow on series to clean all these files? I > don't want to make this series longer with something not dma related > that's purely cleanup from the great header reorg of 2012. Okay. I agree doing this sort of change now will cause merge issues. > >>> + >>> >>> #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? > > Ok, so when I removed the old edma.h it was full of unused defines and > we are left with just this one. If I introduced something like that it > would be used in just one place here. and only for these two values. > How about we just add a comment? I prefer adding a local #define in this file. This will keep it consistent with what is done in arch/arm/mach-davinci/dm365.c for example. Same for the change in sound/soc/davinci/davinci-sffsdr.c > >> >>> 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. > > Let me reword the subject/description. The idea of this logical > chunk was to put everything in place to make it build on OMAP, > with the expectation that the build fails without the next patch > in the series. But this will break bisect. With just this patch applied, omap build breaks. Looks like it will be more logical to merge this hunk with 3/14 since that's when you really start using the private DMA support on OMAP platforms. This issue is a must fix IMO. I am ok with the patch otherwise. With these changes done, you can add: Acked-by: Sekhar Nori Thanks, Sekhar