* Matt Porter <mporter@xxxxxx> [130110 21:47]: > 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. Cool, looks like the driver changes are quite minimal after this: Acked-by: Tony Lindgren <tony@xxxxxxxxxxx> > > Suggested-by: Tony Lindgren <tony@xxxxxxxxxxx> > Signed-off-by: Matt Porter <mporter@xxxxxx> > --- > include/linux/dmaengine.h | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h > index 9fd0c5b..64f9f69 100644 > --- a/include/linux/dmaengine.h > +++ b/include/linux/dmaengine.h > @@ -1047,6 +1047,16 @@ 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) > +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) > +{ > + if (dev->of_node) > + return dma_request_slave_channel(dev, name); > + else > + 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-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html