This is a series of cleanup patches for em28xx I2C. It was originally
part of a series of patches meant to split em28xx V4L2 module, but it
makes sense to submit as a separate patch set.
This series basically does:
- make em28xx compilant with standard I2C errors, as defined
at Documentation/i2c/fault-codes;
- Use jiffies for the timeouts, to make the timeout reliable;
- Better define a value for the I2C timeout, according with
the SMBUS spec. This value works properly on the devices
tested (WinTV 2 USB, Kworld 305U and HVR-950);
- Add 2 levels of I2C debug messages. On the first level,
it displays only the I2C I/O error messages. On the second
level, it displays the entire I2C transfer data;
- Enable I2C timeout debug errors, if i2c_debug=1.
Thanks to Frank Sch??fer <fschaefer....@googlemail.com> for his
pach review.
Mauro Carvalho Chehab (6):
[media] em28xx: convert i2c wait completion logic to use jiffies
[media] em28xx: rename I2C timeout to EM28XX_I2C_XFER_TIMEOUT
[media] em28xx: use a better value for I2C timeouts
em28xx-i2c: Fix error code for I2C error transfers
[media] em28xx: cleanup I2C debug messages
em28xx: add timeout debug information if i2c_debug enabled
drivers/media/usb/em28xx/em28xx-i2c.c | 191 ++++++++++++++++++++--------------
drivers/media/usb/em28xx/em28xx.h | 17 ++-
2 files changed, 125 insertions(+), 83 deletions(-)
--
1.8.3.1
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