Re: spi-atmel.c: regression

2017-10-25 Thread Mark Brown
On Thu, Oct 05, 2017 at 10:05:57AM +0300, Igor Plyatov wrote: > > please help to manage issue with data corruption by PDC of SPI. > > > > > > I have compared operation of Linux-2.6.39 and linux4sam kernel 4.9.36+ > > on the AT91SAM9G20 (Stamp9G20 SOM from Taskit.de) and found regression > > in t

Re: spi-atmel.c: regression

2017-10-05 Thread Igor Plyatov
Hello! Hello! please help to manage issue with data corruption by PDC of SPI. I have compared operation of Linux-2.6.39 and linux4sam kernel 4.9.36+ on the AT91SAM9G20 (Stamp9G20 SOM from Taskit.de) and found regression in the spi-atmel.c. New spi-atmel.c driver works very bad with SPI sp

spi-atmel.c: regression

2017-10-02 Thread Igor Plyatov
Hello! please help to manage issue with data corruption by PDC of SPI. I have compared operation of Linux-2.6.39 and linux4sam kernel 4.9.36+ on the AT91SAM9G20 (Stamp9G20 SOM from Taskit.de) and found regression in the spi-atmel.c. New spi-atmel.c driver works very bad with SPI speeds abov