Thread (21 messages) 21 messages, 4 authors, 2023-08-09

Re: [PATCH V6 4/4] firmware: ti_sci: Introduce system suspend resume support

From: Tony Lindgren <tony@atomide.com>
Date: 2023-08-09 07:23:34
Also in: linux-pm, lkml

* Kevin Hilman [off-list ref] [230809 00:20]:
To me, it sounds like you might want to use ->resume_early() or maybe
->resume_noirq() in the pinctrl driver for this so that IO isolation can
be disabled sooner?
For calls that need to happen just before the SoC is disabled or first
thing on resume path, cpu_cluster_pm_enter() and cpu_cluster_pm_exit()
notifiers work nice and allow distributing the code across the related
SoC specific code and device drivers. See for example the usage in
drivers/irqchip/irq-gic.c for CPU_CLUSTER_PM_ENTER.

Regards,

Tony

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