On Wed, Oct 16, 2019 at 07:44:51PM +0200, Daniel Vetter wrote: > On Wed, Oct 16, 2019 at 6:13 PM Andy Shevchenko > > On Tue, Oct 15, 2019 at 05:57:20PM +0200, Daniel Vetter wrote: > > > Something like this, as a test patch. > > max_transfer_size should be a function. In that case it works. > Why do you want to make it a function? At least from my reading of the > code, the dma vs pio decision seems to be done once. So no need to > change this at runtime. Changing at runtime would also be a pretty big > surprise I think for users of spi. Yeah, I'd expect it to be a fixed property of the hardware that doesn't vary at runtime though I'm sure there must be some innovation out there which challenges that assumption. > > However I'm not sure it's the best approach, thus, Cc to SPI PXA people. > Hm didn't spot the pxa people, added them. Mark, should I just go > ahead and bake this into a proper patch for discussion? Or > fundamentally wrong approach? That seems sensible enough, it should certainly fix the immediate issue.
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