[RFC PATCH 0/2] check I2C device id for pca984x chips

From: Peter Rosin
Date: Mon Jan 22 2018 - 06:37:22 EST


Hi!

This series tries to check the I2C device id, but instead of open
coding the check in the pca954x driver, I have a new function in
the core doing the work.

The code is only compile-tested, hence the RFC, and I would really
like a Tested-by: tag from Adrian who presumably have one of these
chips.

Also, I'm not sure if I should list all manufacturers that I know
about in the header, or if I should settle for the one that is
actually used and leave the others to be added by whomever needs
them...

Cheers,
peda

Peter Rosin (2):
i2c: add i2c_get_device_id() to get the standard i2c device id
i2c: mux: pca954x: verify the device id of the pca984x chips

drivers/i2c/i2c-core-base.c | 33 ++++++++++++++++++++++++++++
drivers/i2c/muxes/i2c-mux-pca954x.c | 43 +++++++++++++++++++++++++++++++++++++
include/linux/i2c.h | 30 ++++++++++++++++++++++++++
3 files changed, 106 insertions(+)

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2.11.0