Messages in this thread | | | Date | Fri, 11 Jan 2019 13:54:13 +0100 | From | Thomas Petazzoni <> | Subject | Re: [PATCH 2/8] gpio: zynq: Wakeup gpio controller when it is used as IRQ controller |
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Hello Linus,
On Fri, 11 Jan 2019 10:54:20 +0100, Linus Walleij wrote:
> My stance is that the driver is responsible of enabling and managing > runtime PM for its hardware block(s). > > Runtime PM in the core should only be added if the core needs to > be aware about it, such as is the case when e.g. a block device > needs to drain its write buffer before going to runtime sleep. > > I fail so see why the GPIO core need to be aware about this.
In this very same thread at https://www.spinics.net/lists/arm-kernel/msg600515.html, you kind of proposed to handle this in the core in fact :-) Though indeed you said that the core could provide helpers.
Thomas -- Thomas Petazzoni, CTO, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
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