linux.git/drivers/pmdomain/imx, branch master

pmdomain: Merge branch fixes into next

2026-04-01T11:34:40+00:00

Merge the pmdomain fixes for v7.0-rc[n] into the next branch, to allow
them to get tested together with the pmdomain changes that are targeted
for the next release.

Signed-off-by: Ulf Hansson

pmdomain: imx: scu-pd: Fix device_node reference leak during ->probe()

2026-04-01T11:07:31+00:00

When calling of_parse_phandle_with_args(), the caller is responsible
to call of_node_put() to release the reference of device node.
In imx_sc_pd_get_console_rsrc(), it does not release the reference.

Fixes: 893cfb99734f ("firmware: imx: scu-pd: do not power off console domain")
Signed-off-by: Felix Gu 
Reviewed-by: Peng Fan 
Signed-off-by: Ulf Hansson

pmdomain: imx93-blk-ctrl: add support for optional subnodes

2026-04-01T11:07:31+00:00

This particular block can have DT subnodes describing the LVDS LDB, MIPI
DSI and parallel DPI bridge.

Scan for possible sub-devices within the driver, instead of misusing the
simple-bus to perform the scan.

Reviewed-by: Alexander Stein 
Reviewed-by: Frank Li 
Signed-off-by: Marco Felsch 
Signed-off-by: Ulf Hansson

pmdomain: imx93-blk-ctrl: convert to devm_* only

2026-04-01T11:07:31+00:00

Convert the driver to devm_ APIs only by making use of
devm_add_action_or_reset() and devm_pm_runtime_enable() to simplify the
probe error path and to drop the .remove() callback. This also ensures
that the device release order equals the device probe error path order.

Furthermore drop the dev_set_drvdata() usage since the only user was the
.remove() callback which is removed by this commit.

Reviewed-by: Frank Li 
Signed-off-by: Marco Felsch 
Signed-off-by: Ulf Hansson

pmdomain: imx93-blk-ctrl: cleanup error path

2026-04-01T11:07:31+00:00

Call dev_err_probe() directly during return to make the code more
compact.

Reviewed-by: Alexander Stein 
Reviewed-by: Frank Li 
Signed-off-by: Marco Felsch 
Signed-off-by: Ulf Hansson

pmdomain: imx8mp-blk-ctrl: Keep the NOC_HDCP clock enabled

2026-04-01T11:03:07+00:00

Keep the NOC_HDCP clock always enabled to fix the potential hang
caused by the NoC ADB400 port power down handshake.

Fixes: 77b0ddb42add ("soc: imx: add i.MX8MP HDMI blk ctrl HDCP/HRV_MWR")
Signed-off-by: Jacky Bai 
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson

pmdomain: imx: gpcv2: Discard pm_runtime_put() return value

2026-02-23T13:05:38+00:00

Passing pm_runtime_put() return value to the callers is not particularly
useful.

Returning an error code from pm_runtime_put() merely means that it has
not queued up a work item to check whether or not the device can be
suspended and there are many perfectly valid situations in which that
can happen, like after writing "on" to the devices' runtime PM "control"
attribute in sysfs for one example.

Accordingly, update imx_pgc_domain_suspend() to simply discard the
return value of pm_runtime_put() and always return success to the
caller.

This will facilitate a planned change of the pm_runtime_put() return
type to void in the future.

Signed-off-by: Rafael J. Wysocki 
Acked-by: Peng Fan 
Acked-by: Ulf Hansson 
Link: https://patch.msgid.link/15658107.tv2OnDr8pf@rafael.j.wysocki

pmdomain: imx8mp-blk-ctrl: Keep usb phy power domain on for system wakeup

2026-02-05T10:33:30+00:00

USB system wakeup need its PHY on, so add the GENPD_FLAG_ACTIVE_WAKEUP
flags to USB PHY genpd configuration.

Signed-off-by: Xu Yang 
Fixes: 556f5cf9568a ("soc: imx: add i.MX8MP HSIO blk-ctrl")
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson

pmdomain: imx8mp-blk-ctrl: Keep gpc power domain on for system wakeup

2026-02-05T10:31:43+00:00

Current design will power off all dependent GPC power domains in
imx8mp_blk_ctrl_suspend(), even though the user device has enabled
wakeup capability. The result is that wakeup function never works
for such device.

An example will be USB wakeup on i.MX8MP. PHY device '382f0040.usb-phy'
is attached to power domain 'hsioblk-usb-phy2' which is spawned by hsio
block control. A virtual power domain device 'genpd:3:32f10000.blk-ctrl'
is created to build connection with 'hsioblk-usb-phy2' and it depends on
GPC power domain 'usb-otg2'. If device '382f0040.usb-phy' enable wakeup,
only power domain 'hsioblk-usb-phy2' keeps on during system suspend,
power domain 'usb-otg2' is off all the time. So the wakeup event can't
happen.

In order to further establish a connection between the power domains
related to GPC and block control during system suspend, register a genpd
power on/off notifier for the power_dev. This allows us to prevent the GPC
power domain from being powered off, in case the block control power
domain is kept on to serve system wakeup.

Suggested-by: Ulf Hansson 
Fixes: 556f5cf9568a ("soc: imx: add i.MX8MP HSIO blk-ctrl")
Cc: stable@vger.kernel.org
Signed-off-by: Xu Yang 
Signed-off-by: Ulf Hansson

pmdomain: imx8m-blk-ctrl: fix out-of-range access of bc->domains

2026-01-30T11:16:42+00:00

Fix out-of-range access of bc->domains in imx8m_blk_ctrl_remove().

Fixes: 2684ac05a8c4 ("soc: imx: add i.MX8M blk-ctrl driver")
Cc: stable@kernel.org
Signed-off-by: Xu Yang 
Reviewed-by: Daniel Baluta 
Signed-off-by: Ulf Hansson