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i2c: imx: disable autosuspend on remove

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i2c_imx_probe() enables runtime PM autosuspend with
pm_runtime_use_autosuspend(). The probe error path correctly undoes
this setting with pm_runtime_dont_use_autosuspend(), but the normal
remove path only disables runtime PM.

The runtime PM API requires pm_runtime_use_autosuspend() to be undone
with pm_runtime_dont_use_autosuspend() at driver exit unless runtime PM
was enabled with devm_pm_runtime_enable(). Leaving the autosuspend flag
set therefore leaves the runtime PM state incompletely cleaned up after
the driver is unbound.

Add the missing pm_runtime_dont_use_autosuspend() call to the remove
path.

This issue was found by manual code inspection.

Fixes: 588eb93ea4 ("i2c: imx: add runtime pm support to improve the performance")
Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
Cc: <stable@vger.kernel.org> # v4.5+
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://patch.msgid.link/20260914091544.1667137-1-lgs201920130244@gmail.com
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Guangshuo Li 2026-09-14 17:15:44 +08:00 • committed by Andi Shyti
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