Hello,
This patchset adds support for atomic transfers which are required for
shutting down machine properly. Secondly, a (not)suspending I2C and some
other things are fixed/improved by this small series as well. Please review
and apply, thanks in advance!
Changelog:
v2: The series is renamed from "Tegra I2C: Support atomic transfers and
correct suspend/resume" to "NVIDIA Tegra I2C driver fixes and
improvements" because it now contains some more various changes.
New patches in v2:
i2c: tegra: Correct unwinding order on driver's probe error
i2c: tegra: Prevent interrupt triggering after transfer timeout
i2c: tegra: Use relaxed versions of readl/writel
The "Rename I2C_PIO_MODE_MAX_LEN to I2C_PIO_MODE_PREFERRED_LEN" got an
improved wording for the code's comment to I2C_PIO_MODE_PREFERRED_LEN.
The "Support atomic transfers" also got some very minor tuning, like
s/in_interrupt()/i2c_dev->is_curr_atomic_xfer/ in dvc_writel() that was
missed in v1.
v1: The "i2c: tegra: Support atomic transfers" previously was sent out as
a separate patch, but later I spotted that suspend/resume doesn't
work properly. The "i2c: tegra: Fix suspending in active runtime PM
state" patch depends on the atomic patch because there is a need to
active IRQ-safe mode for the runtime PM by both patches.
I fixed a missed doc-comment of the newly added "is_curr_atomic_xfer"
structure field and added additional comment that explains why IRQ needs
to be disabled for the atomic transfer in the "Support atomic transfers"
patch.
Lastly, I added a minor "i2c: tegra: Rename .." patch that helps to
follow driver's code.
Dmitry Osipenko (6):
i2c: tegra: Fix suspending in active runtime PM state
i2c: tegra: Properly disable runtime PM on driver's probe error
i2c: tegra: Prevent interrupt triggering after transfer timeout
i2c: tegra: Support atomic transfers
i2c: tegra: Rename I2C_PIO_MODE_MAX_LEN to I2C_PIO_MODE_PREFERRED_LEN
i2c: tegra: Use relaxed versions of readl/writel
drivers/i2c/busses/i2c-tegra.c | 198 ++++++++++++++++++++++-----------
1 file changed, 134 insertions(+), 64 deletions(-)
--
2.24.0
