[PATCH 01/44] kernel: Add support for poweroff handler call chain

Stephen Boyd sboyd at codeaurora.org
Thu Jun 18 14:40:18 PDT 2015

On 06/18/2015 08:30 AM, Guenter Roeck wrote:
> On Wed, Jun 17, 2015 at 06:04:54PM -0700, Stephen Boyd wrote:
> [ ... ]
>> What happened to this series? I want to add shutdown support to my
>> platform and I need to write a register on the PMIC in one driver to
>> configure it for shutdown instead of restart and then write an MMIO
>> register to tell the PMIC to actually do the shutdown in another driver.
>> It seems that the notifier solves this case for me, albeit with the
>> slight complication that I need to order the two with some priority.
> Can you use the .shutdown driver callback instead ?
> I see other drivers use that, and check for system_state == SYSTEM_POWER_OFF
> to power off the hardware.

Yes I think that will work. I'll still have to hook pm_power_off() for
the mmio register, but I guess that's ok and I don't need to worry about
this series then.

Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

More information about the linux-arm-kernel mailing list