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Date: Fri, 1 Feb 2013 13:28:04 -0500 From: Matt Porter <mporter@...com> To: Tony Lindgren <tony@...mide.com>, Sekhar Nori <nsekhar@...com>, Grant Likely <grant.likely@...retlab.ca>, Mark Brown <broonie@...nsource.wolfsonmicro.com>, Benoit Cousson <b-cousson@...com>, Russell King <linux@....linux.org.uk>, Vinod Koul <vinod.koul@...el.com>, Rob Landley <rob@...dley.net>, Chris Ball <cjb@...top.org> Cc: Devicetree Discuss <devicetree-discuss@...ts.ozlabs.org>, Linux OMAP List <linux-omap@...r.kernel.org>, Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>, Linux DaVinci Kernel List <davinci-linux-open-source@...ux.davincidsp.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Linux Documentation List <linux-doc@...r.kernel.org>, Linux MMC List <linux-mmc@...r.kernel.org>, Linux SPI Devel List <spi-devel-general@...ts.sourceforge.net>, Arnd Bergmann <arnd@...db.de>, Dan Williams <djbw@...com>, Rob Herring <rob.herring@...xeda.com> Subject: Re: [PATCH v7 07/10] dmaengine: add dma_request_slave_channel_compat() On Fri, Feb 01, 2013 at 01:22:52PM -0500, Matt Porter wrote: > Adds a dma_request_slave_channel_compat() wrapper which accepts > both the arguments from dma_request_channel() and > dma_request_slave_channel(). Based on whether the driver is > instantiated via DT, the appropriate channel request call will be > made. > > This allows for a much cleaner migration of drivers to the > dmaengine DT API as platforms continue to be mixed between those > that boot using DT and those that do not. > > Suggested-by: Tony Lindgren <tony@...mide.com> > Signed-off-by: Matt Porter <mporter@...com> > Acked-by: Tony Lindgren <tony@...mide.com> > Acked-by: Arnd Bergmann <arnd@...db.de> Vinod, can I get an ack on this one? -Matt > --- > include/linux/dmaengine.h | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) > > diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h > index bfcdecb..17d8ffd 100644 > --- a/include/linux/dmaengine.h > +++ b/include/linux/dmaengine.h > @@ -1001,6 +1001,22 @@ void dma_run_dependencies(struct dma_async_tx_descriptor *tx); > struct dma_chan *dma_find_channel(enum dma_transaction_type tx_type); > struct dma_chan *net_dma_find_channel(void); > #define dma_request_channel(mask, x, y) __dma_request_channel(&(mask), x, y) > +#define dma_request_slave_channel_compat(mask, x, y, dev, name) \ > + __dma_request_slave_channel_compat(&(mask), x, y, dev, name) > + > +static inline struct dma_chan > +*__dma_request_slave_channel_compat(dma_cap_mask_t *mask, dma_filter_fn fn, > + void *fn_param, struct device *dev, > + char *name) > +{ > + struct dma_chan *chan; > + > + chan = dma_request_slave_channel(dev, name); > + if (chan) > + return chan; > + > + return __dma_request_channel(mask, fn, fn_param); > +} > > /* --- Helper iov-locking functions --- */ > > -- > 1.7.9.5 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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