core: remove unnecessary includes

Remove unnecessary includes.

Signed-off-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Jens Wiklander

core: remove unnecessary includes

Remove unnecessary includes.

Signed-off-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>

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drivers: clk: avoid the assert failure when there's "assigned-clocks"

Once "assigned-clocks" is parsed correctly variable "clk" will
retain the non-NULL value and skip "return", when "res" is
non-ze

drivers: clk: avoid the assert failure when there's "assigned-clocks"

Once "assigned-clocks" is parsed correctly variable "clk" will
retain the non-NULL value and skip "return", when "res" is
non-zero for new "clock_idx" assert(false) will happen.

Signed-off-by: Tony Han <tony.han@microchip.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>

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core: arm: Move some DT functions to common kernel

Some existed functions for device tree in ARM could be also used for
other architectures. This commit moves most of functions from ARM
architecture

core: arm: Move some DT functions to common kernel

Some existed functions for device tree in ARM could be also used for
other architectures. This commit moves most of functions from ARM
architecture into "core/kernel/dt.c", including external DT descriptor,
DT overlay, external DT initialization, API for adding DT child nodes
and reserved-memory nodes. Since "core/kernel/dt.c" is dependent with
CFG_DT, other functions which are independent with CFG_DT are put into
new file "core/kernel/boot.c".

Signed-off-by: Alvin Chang <alvinga@andestech.com>
Reviewed-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: replace _fdt_ prefix with fdt_ for device tree API

As per upstream discussion, there is no reason to keep _fdt_ prefix.
Replaces it with fdt_ for all occurrences.

Signed-off-by: Gatien Cheval

core: replace _fdt_ prefix with fdt_ for device tree API

As per upstream discussion, there is no reason to keep _fdt_ prefix.
Replaces it with fdt_ for all occurrences.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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drivers: clk_dt: Switch to use get_secure_dt()

This adds support for both embedded and external secure device trees so
that clock driver and system configuration information can be fetched from
ther

drivers: clk_dt: Switch to use get_secure_dt()

This adds support for both embedded and external secure device trees so
that clock driver and system configuration information can be fetched from
there.

Signed-off-by: Vesa Jääskeläinen <vesa.jaaskelainen@vaisala.com>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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drivers: clk: Fix check for assigned-clock-rates index

Index should actually be strictly less than rate_len. Fix this which
might happen with the following description:

assigned-clock = <foo>, <bar

drivers: clk: Fix check for assigned-clock-rates index

Index should actually be strictly less than rate_len. Fix this which
might happen with the following description:

assigned-clock = <foo>, <bar>;
assigned-clock-parents = <foo_parent>, <bar_parent>;
assigned-clock-rates = <1000>;

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

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drivers: clk: add CFG_DRIVERS_CLK_EARLY_PROBE

Adds configuration switch to allow clocks to be probed as any driver,
possibly deferring initialization. This is needed when a clock driver
has dependen

drivers: clk: add CFG_DRIVERS_CLK_EARLY_PROBE

Adds configuration switch to allow clocks to be probed as any driver,
possibly deferring initialization. This is needed when a clock driver
has dependencies on another resource.

The configuration is default enabled (CFG_DRIVERS_CLK_EARLY_PROBE=y)
that is probing clock drivers before other drivers using the early_init
initcall level as done prior this change.

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

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drivers: clk: use while (true)

Changes clk_dt.c to use while (true) instead of while (1) for consistency
in optee_os implementation.

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

drivers: clk: use while (true)

Changes clk_dt.c to use while (true) instead of while (1) for consistency
in optee_os implementation.

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

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drivers: clk: change clk_dt_get_by_*() prototype

Changes clk_dt_get_by_idx() and clk_dt_get_by_name() to return a
the TEE_Result code and use an output argument to pass back
clock reference rather t

drivers: clk: change clk_dt_get_by_*() prototype

Changes clk_dt_get_by_idx() and clk_dt_get_by_name() to return a
the TEE_Result code and use an output argument to pass back
clock reference rather than the opposite. This change makes
clk_dt_get_by_*() function more consistent with the other
OP-TEE core API functions.

Also renames clk_dt_get_by_idx() to clk_dt_get_by_index().

Updates sama5d2_clk.c and atmel_trng.c accordingly.

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

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drivers: clk: add verbosity on provider probe error case

Prints the names of the parent node and node for which core failed to
probe a clock instance. Also prints the returned error code. These
adde

drivers: clk: add verbosity on provider probe error case

Prints the names of the parent node and node for which core failed to
probe a clock instance. Also prints the returned error code. These
added debug information help understanding where and FDT parsing failed.

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

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core: dt_driver: use driver type when finding a driver provider

Adds driver type argument to functions dt_driver_get_provider_by_node(),
and dt_driver_get_provider_by_phandle() to differentiate driv

core: dt_driver: use driver type when finding a driver provider

Adds driver type argument to functions dt_driver_get_provider_by_node(),
and dt_driver_get_provider_by_phandle() to differentiate driver provider
references when a single DT node relates to several driver providers
that are of different type by DT binding definition. For example, a DT
node may describe a device that acts both as a clock provider and a reset
controller, for which two driver references are needed in the driver
provider list.

Updates dt_driver_device_from_node_idx_prop() accordingly.

Fixes: f498c4042931 ("core: dt_driver: factorize clk_get_provider_by_*()")
Acked-by: Jerome Forissier <jerome@forissier.org>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: dt_driver: get return code when querying a device

Change dt_driver_device_from_provider_prop() function and friends to
output return a TEE_Result code if failing to find target device
instance

core: dt_driver: get return code when querying a device

Change dt_driver_device_from_provider_prop() function and friends to
output return a TEE_Result code if failing to find target device
instance. Return code TEE_ERROR_DEFER_DRIVER_INIT reports that requested
device is not yet registered and initialized in the dt_driver provider
list.

This change will be used to probed device drivers and allow probe
deferral when a device depends on another device driver that is
not yet initialized.

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

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core: dt_driver: factorize clk_dt_node_clock_probe_driver()

Move/rename clk_dt_get_from_provider() to dt_driver_probe_device_by_node()
and local helper clk_get_compatible_driver() to probe_device_by

core: dt_driver: factorize clk_dt_node_clock_probe_driver()

Move/rename clk_dt_get_from_provider() to dt_driver_probe_device_by_node()
and local helper clk_get_compatible_driver() to probe_device_by_compat().

Acked-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Clément Léger <clement.leger@bootlin.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: dt_driver: move probe callback to dt_driver

Move ::probe field from struct dt_driver_setup to struct dt_driver
and remove struct dt_driver_setup.

Acked-by: Jerome Forissier <jerome@forissier.

core: dt_driver: move probe callback to dt_driver

Move ::probe field from struct dt_driver_setup to struct dt_driver
and remove struct dt_driver_setup.

Acked-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Clément Léger <clement.leger@bootlin.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: dt_driver: factorize clk_dt_get_from_provider()

Implement dt_driver_device_from_node_idx_prop() for
clk_dt_get_by_idx_prop() to get target reference instance.

Move/rename clk_dt_get_from_prov

core: dt_driver: factorize clk_dt_get_from_provider()

Implement dt_driver_device_from_node_idx_prop() for
clk_dt_get_by_idx_prop() to get target reference instance.

Move/rename clk_dt_get_from_provider() to
dt_driver_device_from_provider_prop()

Acked-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Clément Léger <clement.leger@bootlin.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: dt_driver: factorize clk_get_provider_by_*()

Move rename clk_get_provider_by_{node|phandle}() to
dt_driver_get_provider_by_*().

Acked-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Clé

core: dt_driver: factorize clk_get_provider_by_*()

Move rename clk_get_provider_by_{node|phandle}() to
dt_driver_get_provider_by_*().

Acked-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Clément Léger <clement.leger@bootlin.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: dt_driver: factorize DT cells helper functions

Move/rename fdt_clock_cells() to fdt_get_dt_driver_cells().
and clk_dt_register_clk_provider() to dt_driver_register_provider().

Add helper func

core: dt_driver: factorize DT cells helper functions

Move/rename fdt_clock_cells() to fdt_get_dt_driver_cells().
and clk_dt_register_clk_provider() to dt_driver_register_provider().

Add helper function dt_driver_provider_cells() to get ::provider_cells
from a registered provider reference.

Acked-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Clément Léger <clement.leger@bootlin.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: dt_driver: factorize DT phandle util resources

Move struct clk_dt_phandle_args and struct clk_dt_provider from clk_dt.h
to dt_driver.h and rename them to struct dt_driver_phandle_args and
stru

core: dt_driver: factorize DT phandle util resources

Move struct clk_dt_phandle_args and struct clk_dt_provider from clk_dt.h
to dt_driver.h and rename them to struct dt_driver_phandle_args and
struct dt_driver_provider.

Introduce type get_of_device_func for callback functions used to
retrieve a device instance reference from a DT phandle possible with
arguments.

Acked-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Clément Léger <clement.leger@bootlin.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

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drivers: clk: rename setup callback to probe

Rename clock core and fixed_clk setup functions to probe functions and
update in-line description as per handler description in the framework.

Acked-by:

drivers: clk: rename setup callback to probe

Rename clock core and fixed_clk setup functions to probe functions and
update in-line description as per handler description in the framework.

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

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drivers: clk: rename clk_dt_get_fn to clk_dt_get_func

Rename type clk_dt_get_fn to clk_dt_get_func for consistency in OP-TEE
OS implementation where all other function prototype type definitions
use

drivers: clk: rename clk_dt_get_fn to clk_dt_get_func

Rename type clk_dt_get_fn to clk_dt_get_func for consistency in OP-TEE
OS implementation where all other function prototype type definitions
use _func as suffix.

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

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drivers: clk: add platform data per compatible identifier

Add a platform data reference field in struct dt_device_match so
that a driver knows data related to the compatible it is probed for.

Signe

drivers: clk: add platform data per compatible identifier

Add a platform data reference field in struct dt_device_match so
that a driver knows data related to the compatible it is probed for.

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

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drivers: clk: add devicetree support

When using a devicetree, it is often useful to have clocks parsing.
This support adds clocks properties parsing and allow having clock
providers and users. Clock

drivers: clk: add devicetree support

When using a devicetree, it is often useful to have clocks parsing.
This support adds clocks properties parsing and allow having clock
providers and users. Clocks drivers can also be declared with
CLK_DT_DECLARE. They will be probed automatically by the clock core.
On the user side, function clk_dt_get_by_name and clk_dt_get_by_idx
allows to retrieve a clock from the device tree description and match
it with the provider clocks. The core ensure the clocks are probed
hierarchically.
This support is enabled using CFG_DRIVERS_CLK_DT.

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

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