linux-kernel - Re: [PATCH 17/17] mfd : ab8500/db8500: fix the abuse of IRQF_NO

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Date:	Tue, 22 Sep 2015 22:03:22 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Sudeep Holla <sudeep.holla@....com>
Cc:	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Linus Walleij <linus.walleij@...aro.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 17/17] mfd : ab8500/db8500: fix the abuse of
 IRQF_NO_SUSPEND

On Tue, 22 Sep 2015, Sudeep Holla wrote:
> On 22/09/15 00:20, Lee Jones wrote:
> >On Mon, 21 Sep 2015, Sudeep Holla wrote:
> >
> >>The IRQF_NO_SUSPEND flag is used to identify the interrupts that should
> >>be left enabled so as to allow them to work as expected during the
> >>suspend-resume cycle, but doesn't guarantee that it will wake the system
> >>from a suspended state, enable_irq_wake is recommended to be used for
> >>the wakeup.
> >>
> >>This patch removes the use of IRQF_NO_SUSPEND flags replacing it with
> >>enable_irq_wake instead.
> >>
> >>Cc: Linus Walleij <linus.walleij@...aro.org>
> >>Cc: linux-arm-kernel@...ts.infradead.org
> >>Signed-off-by: Sudeep Holla <sudeep.holla@....com>
> >>---
> >>  drivers/mfd/ab8500-core.c        | 11 +++++++++--
> >>  drivers/mfd/ab8500-debugfs.c     |  2 +-
> >>  drivers/mfd/ab8500-gpadc.c       | 15 +++++++++++----
> >>  drivers/mfd/db8500-prcmu.c       | 24 +++++++++++++++++-------
> >>  drivers/power/ab8500_btemp.c     |  6 ++++--
> >>  drivers/power/ab8500_charger.c   |  6 ++++--
> >>  drivers/power/ab8500_fg.c        |  9 ++++++---
> >>  drivers/thermal/db8500_thermal.c |  5 ++---
> >>  drivers/usb/phy/phy-ab8500-usb.c | 10 ++++++----
> >>  9 files changed, 60 insertions(+), 28 deletions(-)
> >
> >Is there a reason for bundling the changes in all of these subsystems
> >together into a single patch?
> >
> 
> No, I understand this needs to be split. Since I was not 100% confident
> about this change, I wanted LinusW to review and provide feedback and
> gets things working before I can split this changes. I must have added
> RFC, but usually it gets ignored :)

Best if Linus reviews the correct patch-set.  Please split and
resubmit.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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