drivers: scmi-msg: fix clock rates description remaining count

Fix value of remaining clocks to describe on SCMI clock protocol
message CLOCK_DESCRIBE_RATES that does not take into account the
numbe

drivers: scmi-msg: fix clock rates description remaining count

Fix value of remaining clocks to describe on SCMI clock protocol
message CLOCK_DESCRIBE_RATES that does not take into account the
number of returned clock in the response.

Fixes: 90252e2a52c7 ("drivers: scmi-msg: clock adapts to output buffer size")
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Gatien Chevallier <gatien.chevallier@foss.st.com>

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drivers: scmi-msg: Fix parameter type

In order to make clock.c and voltage_domain.c compile on
64 bit architecture, we cannot use unsigned int in the
function prototype and size_t in the function de

drivers: scmi-msg: Fix parameter type

In order to make clock.c and voltage_domain.c compile on
64 bit architecture, we cannot use unsigned int in the
function prototype and size_t in the function definition.

Signed-off-by: Ludvig Pärsson <ludvig.parsson@axis.com>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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drivers: scmi-msg: clock adapts to output buffer size

Changes SCMI clocks implementation to not assume the SCMI output
message buffer is of a given size. Implementation still expects the
output shar

drivers: scmi-msg: clock adapts to output buffer size

Changes SCMI clocks implementation to not assume the SCMI output
message buffer is of a given size. Implementation still expects the
output shared memory is at least large enough to hold the SCMI status
information that is 32bit wide.

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

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drivers: scmi-msg: rename secure buffer size macros

Renames macro SCMI_PLAYLOAD_MAX to SCMI_SEC_PAYLOAD_SIZE and
SCMI_PLAYLOAD_U32_MAX to SCMI_PAYLOAD_U32_SIZE to fix typo in macro name
(play to pay

drivers: scmi-msg: rename secure buffer size macros

Renames macro SCMI_PLAYLOAD_MAX to SCMI_SEC_PAYLOAD_SIZE and
SCMI_PLAYLOAD_U32_MAX to SCMI_PAYLOAD_U32_SIZE to fix typo in macro name
(play to pay) and make it clear that SCMI_SEC_PAYLOAD_SIZE is the size
of the secure buffer used to store a secure copy of the input SCMI
message payload, that is expected small.

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

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util: rename ALIGNMENT_IS_OK to IS_ALIGNED_WITH_TYPE

Implement the renamed macro using the IS_ALIGNED definition.

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Etienne Carrie

util: rename ALIGNMENT_IS_OK to IS_ALIGNED_WITH_TYPE

Implement the renamed macro using the IS_ALIGNED definition.

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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drivers: scmi-msg: fix typo

Fix a trivial typo (§ -> /)

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

drivers: scmi-msg: rename agent_id to channel_id

Rename agent_id reference to channel_id to avoid confusion with the
agent identifiers used in SCMI protocol to identify agent, whereas
the drivers on

drivers: scmi-msg: rename agent_id to channel_id

Rename agent_id reference to channel_id to avoid confusion with the
agent identifiers used in SCMI protocol to identify agent, whereas
the drivers only reference an SCMI channel, whatever the agent ID
associated with the channel and knowing that an SCMI agent can have
several channels to communicate with the SCMI platform/server.

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

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drivers: scmi-msg: fix clock rates query

Fix implementation of the clock rate query platform functions to
consider rates start index which was missing.

Fixes: a7a9e3ba71dd ("drivers/scmi-msg: suppo

drivers: scmi-msg: fix clock rates query

Fix implementation of the clock rate query platform functions to
consider rates start index which was missing.

Fixes: a7a9e3ba71dd ("drivers/scmi-msg: support for clock protocol")
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Acked-by: Jerome Forissier <jerome@forissier.org>

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drivers/scmi-msg: support for clock protocol

Adds SCMI clock protocol support in the SCMI message drivers as
defined in SCMI specification v2.0 [1]. Not all the messages
defined in the specification

drivers/scmi-msg: support for clock protocol

Adds SCMI clock protocol support in the SCMI message drivers as
defined in SCMI specification v2.0 [1]. Not all the messages
defined in the specification are supported.

Embedded upon CFG_SCMI_MSG_CLOCK=y.

Platform can provide one of the plat_scmi_clock_*() handler for the
supported operations set/get state/rate and others.

scmi_msg_get_clock_handler() sanitizes the message_id value
against any speculative use of clock ID as a index since by
SCMI specification, IDs are indices.

SCMI resource in this implementation are dumped or inspired by the
SCP-firmware implementation [2] of the SCMI protocol, server side.

Link: [1] http://infocenter.arm.com/help/topic/com.arm.doc.den0056a/DEN0056A_System_Control_and_Management_Interface.pdf
Link: [2] https://github.com/ARM-software/SCP-firmware.git

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

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