To keep the discussion about master_xfer_irqless going, I post here a draft how I envision the changes to the I2C core. They are only build tested. I am unsure if I can test them on hardware before next week, so I'll send them around as RFC already, so people can get an idea and comment. Maybe Stefan has some bandwidth to test his imx driver implementation on top of this? A branch can be found here: git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git renesas/i2c/xfer_irqless Happy hacking and thanks for all the input to this, Wolfram Wolfram Sang (4): i2c: core: remove outdated DEBUG output i2c: core: remove level of indentation in i2c_transfer i2c: core: use I2C locking behaviour also for SMBUS i2c: core: introduce master_xfer_irqless callback drivers/i2c/i2c-core-base.c | 44 +++++++++++++----------------------- drivers/i2c/i2c-core-smbus.c | 7 +++++- drivers/i2c/i2c-core.h | 12 ++++++++++ include/linux/i2c.h | 10 +++++--- 4 files changed, 41 insertions(+), 32 deletions(-) -- 2.18.0
