linux/drivers/i2c
Wolfram Sang 55f5f9862a i2c: sh_mobile: rework deferred probing
DMA is opt-in for this driver. So, we can't use deferred probing for
requesting DMA channels in probe, because our driver would get endlessly
deferred if DMA support is compiled in AND the DMA driver is missing.
Because we can't know when the DMA driver might show up, we always try
again when a DMA transfer would be possible. The downside is that there
is more overhead for setting up PIO transfers under the above scenario.
But well, having DMA enabled and the proper DMA driver missing looks
like a broken or test config anyhow.

Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-12-17 19:26:08 +01:00
..
algos i2c: remove FSF address 2014-11-07 18:35:33 +01:00
busses i2c: sh_mobile: rework deferred probing 2014-12-17 19:26:08 +01:00
muxes i2c: muxes: drop owner assignment from platform_drivers 2014-10-20 16:20:38 +02:00
i2c-boardinfo.c i2c: remove FSF address 2014-11-07 18:35:33 +01:00
i2c-core.c Merge branch 'i2c/for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2014-12-14 12:54:40 -08:00
i2c-core.h i2c: remove FSF address 2014-11-07 18:35:33 +01:00
i2c-dev.c i2c: remove FSF address 2014-11-07 18:35:33 +01:00
i2c-mux.c i2c: mux: create "channel-n" symlinks for child segments in the mux device 2014-11-18 16:09:49 +01:00
i2c-slave-eeprom.c i2c: slave-eeprom: add eeprom simulator driver 2014-12-11 22:25:54 +01:00
i2c-smbus.c i2c: remove FSF address 2014-11-07 18:35:33 +01:00
i2c-stub.c i2c: remove FSF address 2014-11-07 18:35:33 +01:00
Kconfig i2c: slave-eeprom: add eeprom simulator driver 2014-12-11 22:25:54 +01:00
Makefile i2c: slave-eeprom: add eeprom simulator driver 2014-12-11 22:25:54 +01:00