Re: [PATCH V3 3/3] i2c: tegra: Add DMA Support

2019-01-28 Thread Dmitry Osipenko
29.01.2019 5:02, Sowjanya Komatineni пишет: > > This patch adds DMA support for Tegra I2C. Tegra I2C TX and RX FIFO depth is 8 words. PIO mode is used for transfer size of the max FIFO depth and DMA mode is used for transfer size higher than max FIFO depth to save CPU o

RE: [PATCH V3 3/3] i2c: tegra: Add DMA Support

2019-01-28 Thread Sowjanya Komatineni
> > > This patch adds DMA support for Tegra I2C. > > > > > > Tegra I2C TX and RX FIFO depth is 8 words. PIO mode is used for > > > transfer size of the max FIFO depth and DMA mode is used for > > > transfer size higher than max FIFO depth to save CPU overhead. > > > > > > PIO mode needs full

RE: [PATCH V3 3/3] i2c: tegra: Add DMA Support

2019-01-28 Thread Sowjanya Komatineni
> > This patch adds DMA support for Tegra I2C. > > > > Tegra I2C TX and RX FIFO depth is 8 words. PIO mode is used for > > transfer size of the max FIFO depth and DMA mode is used for transfer > > size higher than max FIFO depth to save CPU overhead. > > > > PIO mode needs full intervention o

Re: [PATCH V3 3/3] i2c: tegra: Add DMA Support

2019-01-26 Thread Dmitry Osipenko
26.01.2019 6:57, Sowjanya Komatineni пишет: > This patch adds DMA support for Tegra I2C. > > Tegra I2C TX and RX FIFO depth is 8 words. PIO mode is used for > transfer size of the max FIFO depth and DMA mode is used for > transfer size higher than max FIFO depth to save CPU overhead. > > PIO mode

Re: [PATCH V3 3/3] i2c: tegra: Add DMA Support

2019-01-26 Thread Dmitry Osipenko
26.01.2019 6:57, Sowjanya Komatineni пишет: > This patch adds DMA support for Tegra I2C. > > Tegra I2C TX and RX FIFO depth is 8 words. PIO mode is used for > transfer size of the max FIFO depth and DMA mode is used for > transfer size higher than max FIFO depth to save CPU overhead. > > PIO mode

Re: [PATCH V3 3/3] i2c: tegra: Add DMA Support

2019-01-26 Thread Dmitry Osipenko
26.01.2019 20:11, Dmitry Osipenko пишет: > 26.01.2019 6:57, Sowjanya Komatineni пишет: >> This patch adds DMA support for Tegra I2C. >> >> Tegra I2C TX and RX FIFO depth is 8 words. PIO mode is used for >> transfer size of the max FIFO depth and DMA mode is used for >> transfer size higher than max

Re: [PATCH V3 3/3] i2c: tegra: Add DMA Support

2019-01-26 Thread Dmitry Osipenko
26.01.2019 6:57, Sowjanya Komatineni пишет: > This patch adds DMA support for Tegra I2C. > > Tegra I2C TX and RX FIFO depth is 8 words. PIO mode is used for > transfer size of the max FIFO depth and DMA mode is used for > transfer size higher than max FIFO depth to save CPU overhead. > > PIO mode

Re: [PATCH V3 3/3] i2c: tegra: Add DMA Support

2019-01-26 Thread Dmitry Osipenko
26.01.2019 6:57, Sowjanya Komatineni пишет: > This patch adds DMA support for Tegra I2C. > > Tegra I2C TX and RX FIFO depth is 8 words. PIO mode is used for > transfer size of the max FIFO depth and DMA mode is used for > transfer size higher than max FIFO depth to save CPU overhead. > > PIO mode