Messages in this thread | | | Date | Tue, 13 Jan 2015 18:28:12 +0200 | From | Baruch Siach <> | Subject | Re: [PATCH] i2c: designware: use {readl|writel}_relaxed instead of readl/writel |
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Hi Wolfram,
On Tue, Jan 13, 2015 at 03:36:54PM +0100, Wolfram Sang wrote: > > The driver does not perform DMA, so it's safe to use the relaxed version. > > From another side, the relaxed io accessor macros are available on all > > architectures now, so we can use the relaxed versions instead. > > Can the designware core make use of DMA in theory?
According to the "DesignWare DW_apb_i2c Databook" version I have it can (optionally).
baruch
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