Re: [PATCH] i2c: mxs: Add PIO and mixed-DMA support

2013-01-24 Thread Marek Vasut
Dear Wolfram Sang, > Hi Marek, > > On Wed, Nov 21, 2012 at 06:51:28AM +0100, Marek Vasut wrote: > > Add support for the PIO mode and mixed PIO/DMA mode support. The mixed > > PIO/DMA is the default mode of operation. This shall leverage overhead > > that the driver creates due to setting up DMA d

Re: [PATCH] i2c: mxs: Add PIO and mixed-DMA support

2013-01-23 Thread Wolfram Sang
Hi Marek, On Wed, Nov 21, 2012 at 06:51:28AM +0100, Marek Vasut wrote: > Add support for the PIO mode and mixed PIO/DMA mode support. The mixed > PIO/DMA is the default mode of operation. This shall leverage overhead > that the driver creates due to setting up DMA descriptors even for very > short

Re: [PATCH] i2c: mxs: Add PIO and mixed-DMA support

2013-01-08 Thread Marek Vasut
Hi Wolfram, > On Thu, Nov 22, 2012 at 01:50:37AM +0100, Marek Vasut wrote: > > Dear Marek Vasut, > > > > > Add support for the PIO mode and mixed PIO/DMA mode support. The mixed > > > PIO/DMA is the default mode of operation. This shall leverage overhead > > > that the driver creates due to setti

Re: [PATCH] i2c: mxs: Add PIO and mixed-DMA support

2012-11-22 Thread Marek Vasut
Dear Marek Vasut, > Add support for the PIO mode and mixed PIO/DMA mode support. The mixed > PIO/DMA is the default mode of operation. This shall leverage overhead > that the driver creates due to setting up DMA descriptors even for very > short transfers. > > The current boundary between PIO/DMA

Re: [PATCH] i2c: mxs: Add PIO and mixed-DMA support

2012-11-22 Thread Marek Vasut
Dear Wolfram Sang, > On Thu, Nov 22, 2012 at 01:50:37AM +0100, Marek Vasut wrote: > > Dear Marek Vasut, > > > > > Add support for the PIO mode and mixed PIO/DMA mode support. The mixed > > > PIO/DMA is the default mode of operation. This shall leverage overhead > > > that the driver creates due t

Re: [PATCH] i2c: mxs: Add PIO and mixed-DMA support

2012-11-22 Thread Wolfram Sang
On Thu, Nov 22, 2012 at 01:50:37AM +0100, Marek Vasut wrote: > Dear Marek Vasut, > > > Add support for the PIO mode and mixed PIO/DMA mode support. The mixed > > PIO/DMA is the default mode of operation. This shall leverage overhead > > that the driver creates due to setting up DMA descriptors eve

[PATCH] i2c: mxs: Add PIO and mixed-DMA support

2012-11-20 Thread Marek Vasut
Add support for the PIO mode and mixed PIO/DMA mode support. The mixed PIO/DMA is the default mode of operation. This shall leverage overhead that the driver creates due to setting up DMA descriptors even for very short transfers. The current boundary between PIO/DMA 8 bytes, transfers shorter tha