PM / devfreq: imx-bus: Use of_property_present()

Use of_property_present() to test for property presence rather than
of_get_property(). This is part of a larger effort to remove callers
of of_get_pr

PM / devfreq: imx-bus: Use of_property_present()

Use of_property_present() to test for property presence rather than
of_get_property(). This is part of a larger effort to remove callers
of of_get_property() and similar functions. of_get_property() leaks
the DT property data pointer which is a problem for dynamically
allocated nodes which may be freed.

Link: https://lore.kernel.org/lkml/[email protected]/
Acked-by: Peng Fan <[email protected]>
Signed-off-by: Rob Herring (Arm) <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>

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PM / devfreq: Explicitly include correct DT includes

The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of

PM / devfreq: Explicitly include correct DT includes

The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.

Signed-off-by: Rob Herring <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>

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PM / devfreq: imx: Register i.MX8MP interconnect device

Same to i.MX8MM/N/Q, register i.MX8MP interconnect device to make
i.MX8MP Interconnect driver work.

Signed-off-by: Peng Fan <[email protected]

PM / devfreq: imx: Register i.MX8MP interconnect device

Same to i.MX8MM/N/Q, register i.MX8MP interconnect device to make
i.MX8MP Interconnect driver work.

Signed-off-by: Peng Fan <[email protected]>
Acked-by: Chanwoo Choi <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Georgi Djakov <[email protected]>

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PM / devfreq: imx-bus: use NULL to pass a null pointer rather than zero

The 3rd argument to the function of_get_property is a pointer and it is
being passed using 0. Use NULL instead.

Cleans up spa

PM / devfreq: imx-bus: use NULL to pass a null pointer rather than zero

The 3rd argument to the function of_get_property is a pointer and it is
being passed using 0. Use NULL instead.

Cleans up sparse warning:
warning: Using plain integer as NULL pointer

Signed-off-by: Colin Ian King <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>

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PM / devfreq: imx-bus: Remove imx_bus_get_dev_status

Current driver actually does not support simple ondemand governor
as it's unable to provide device load information. So removing
the unnecessary

PM / devfreq: imx-bus: Remove imx_bus_get_dev_status

Current driver actually does not support simple ondemand governor
as it's unable to provide device load information. So removing
the unnecessary callback to avoid confusing.
Right now the driver is using userspace governor by default.

polling_ms was also dropped as it's not needed for non-ondemand
governor.

Signed-off-by: Dong Aisheng <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>

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PM / devfreq: imx-bus: Remove unneeded of_match_ptr()

i.MX is a DT-only platform, so of_match_ptr() can be safely
removed.

Remove the unneeded of_match_ptr().

Signed-off-by: Fabio Estevam <festeva

PM / devfreq: imx-bus: Remove unneeded of_match_ptr()

i.MX is a DT-only platform, so of_match_ptr() can be safely
removed.

Remove the unneeded of_match_ptr().

Signed-off-by: Fabio Estevam <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>

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PM / devfreq: imx-bus: Fix inconsistent IS_ERR and PTR_ERR

Fix inconsistent IS_ERR and PTR_ERR in imx_bus_init_icc().

The proper pointer to be passed as argument to PTR_ERR() is
priv->icc_pdev.

Th

PM / devfreq: imx-bus: Fix inconsistent IS_ERR and PTR_ERR

Fix inconsistent IS_ERR and PTR_ERR in imx_bus_init_icc().

The proper pointer to be passed as argument to PTR_ERR() is
priv->icc_pdev.

This bug was detected with the help of Coccinelle.

Fixes: 16c1d2f1b0bd ("PM / devfreq: imx: Register interconnect device")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
Reviewed-by: Dong Aisheng <[email protected]>
[cw00.choi: Edit the patch title from 'imx' to 'imx-bus']
Signed-off-by: Chanwoo Choi <[email protected]>

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PM / devfreq: imx: Register interconnect device

There is no single device which can represent the imx interconnect.
Instead of adding a virtual one just make the main &noc act as the
global intercon

PM / devfreq: imx: Register interconnect device

There is no single device which can represent the imx interconnect.
Instead of adding a virtual one just make the main &noc act as the
global interconnect provider.

The imx interconnect provider driver will scale the NOC and DDRC based
on bandwidth request. More scalable nodes can be added in the future,
for example for audio/display/vpu/gpu NICs.

Signed-off-by: Leonard Crestez <[email protected]>
Tested-by: Martin Kepplinger <[email protected]>
Acked-by: Chanwoo Choi <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>

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PM / devfreq: Add generic imx bus scaling driver

Add initial support for dynamic frequency switching on pieces of the imx
interconnect fabric.

All this driver does is set a clk rate based on an opp

PM / devfreq: Add generic imx bus scaling driver

Add initial support for dynamic frequency switching on pieces of the imx
interconnect fabric.

All this driver does is set a clk rate based on an opp table, it does
not map register areas.

Signed-off-by: Leonard Crestez <[email protected]>
Tested-by: Martin Kepplinger <[email protected]>
Acked-by: Chanwoo Choi <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>

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