drivers: i2c: add missing __unused in stubbed function

Fix statc inline stub implementation of i2c_dt_get_dev() that
lacks a __unused attribute on an unused argument.

Fixes: b357d34fe91f ("core: dt

drivers: i2c: add missing __unused in stubbed function

Fix statc inline stub implementation of i2c_dt_get_dev() that
lacks a __unused attribute on an unused argument.

Fixes: b357d34fe91f ("core: dt_driver: swap TEE_result and retrieved device reference")
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>

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core: dt_driver: swap TEE_result and retrieved device reference

Changes dt_driver callback function to return a TEE_Result value
and pass retrieved device reference by a output argument rather
than

core: dt_driver: swap TEE_result and retrieved device reference

Changes dt_driver callback function to return a TEE_Result value
and pass retrieved device reference by a output argument rather
than the opposite.

This change updates dt_driver.c, dt_driver.h and all drivers
implementing related dt_driver callback function.

As a consequence, this change removes all type definition related
to device specific callback handler function types which are useless
as all these now comply with type dt_driver_probe_func defined in
dt_driver.h.

Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>

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core: rename dt_driver_phandle_args to dt_pargs

Renames struct dt_driver_phandle_args to struct dt_pargs to
shorten the label and prevent ugly line breaks in function
signatures.

Acked-by: Jens Wik

core: rename dt_driver_phandle_args to dt_pargs

Renames struct dt_driver_phandle_args to struct dt_pargs to
shorten the label and prevent ugly line breaks in function
signatures.

Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: dt_driver: move related content from dt.h to dt_driver.h

Moves so-called dt_driver related declarations and definitions from
dt.h to dt_drivers.h. Incidentally adds an inline description to
en

core: dt_driver: move related content from dt.h to dt_driver.h

Moves so-called dt_driver related declarations and definitions from
dt.h to dt_drivers.h. Incidentally adds an inline description to
enum dt_driver_type. This change clarifies when a source file shall
include dt.h and/or dt_driver.h.

This change updates driver source files to include none, one or both of
these header files where applicable.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

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drivers: i2c: add a simple framework to handle i2c devices

Add simple i2c support which provides support for I2C controllers and
devices using the generic DT mechanisms that already exists. I2C
cont

drivers: i2c: add a simple framework to handle i2c devices

Add simple i2c support which provides support for I2C controllers and
devices using the generic DT mechanisms that already exists. I2C
controllers needs to implement i2c_ctrl_ops to provide i2c operations
such as read, write and smbus commands depending on their capabilities.
I2C devices driver can then be defined using DEFINE_I2C_DEV_DRIVER().
This macros will use a default i2c probe function (__i2c_probe()) which
will then call the I2C device probe function by passing a i2c_dev struct
that can be used to communicate with the I2C device defined in the
device-tree.

Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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