Messages in this thread |  | | Subject | Re: [PATCH 2/3] spi: mediatek: Add spi bus for Mediatek MT8173 | From | Eddie Huang <> | Date | Wed, 10 Jun 2015 16:06:09 +0800 |
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Hi Mark,
On Tue, 2015-06-09 at 11:39 +0100, Mark Brown wrote: > On Tue, Jun 09, 2015 at 06:05:21PM +0800, Eddie Huang wrote: > > > --- a/drivers/spi/spi.c > > +++ b/drivers/spi/spi.c > > @@ -539,8 +539,8 @@ static int __spi_map_msg(struct spi_master *master, > > struct spi_message *msg) > > if (!master->can_dma) > > return 0; > > > - tx_dev = master->dma_tx->device->dev; > > - rx_dev = master->dma_rx->device->dev; > > + tx_dev = master->dma_tx ? master->dma_tx->device->dev : > > master->dev; > > + rx_dev = master->dma_rx ? master->dma_rx->device->dev : master- > > > Is this what you want ? Actually, I don't like first one at all. > > Not quite what I'd been thinking of - we can't just pick the device in > the core safely, the device might be a MFD or have some other > restriction that needs us to use a separate struct device. However most > of those cases are likely to point towards implementing a dmaengine > device so probably the above will work for most cases and is fine. Can > you send a proper patch please?
Sure, we will send this with new MTK SPI driver, such that can verify it.
> > Please don't use the ternery operator, though. OK, will fix it
Eddie Thanks
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