Hi Mark,

On 11/10/14, Padma Venkat [off-list ref] wrote:

Hi Mark,

On 11/7/14, Mark Brown [off-list ref] wrote:

quoted

On Fri, Nov 07, 2014 at 02:01:57PM +0530, Padma Venkat wrote:

quoted

CS can also be controlled automatically by setting AUTO_N_MANUAL to 1
in CS_CFG. When it is auto CS automatically toggles between packet to
packet. NCS_TIME_COUNT in CS_CFG controls the inactive period. The
driver by default uses manual mode. But on exynos7 the manual mode is
removed.

OK, but what's a packet here?

Packet is either 1 byte or 4 bytes size depends on width of the SPI
channel.

quoted

quoted

I tested the driver with wm5110 codec.

Did you try firmware downloads or something else that generates multiple
transfers in a message?  Normal register writes will use a single
transfer so I'd expect them to just work.

OK. I don't have provision to test on this board. I will try to test
on older boards by disabling manual mode.

I tested on exynos5420 peach-pit by enabling auto mode. I used dd
command to read 1MB data from spi flash and I compared the result with
manual mode. Both are same.

Thanks
padma