Hi Mark, On 11/10/14, Padma Venkat <padma.kvr@xxxxxxxxx> wrote: > Hi Mark, > > On 11/7/14, Mark Brown <broonie@xxxxxxxxxx> wrote: >> On Fri, Nov 07, 2014 at 02:01:57PM +0530, Padma Venkat wrote: >> >>> 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. > >> >>> 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 > -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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