linux-kernel - Re: [PATCH v7 2/2] mfd: syscon: Add hardware spinlock support

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Message-ID: <20180123091128.uqiot64vup566syo@dell>
Date:   Tue, 23 Jan 2018 09:11:28 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     Baolin Wang <baolin.wang@...aro.org>
Cc:     Arnd Bergmann <arnd@...db.de>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Mark Brown <broonie@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        DTML <devicetree@...r.kernel.org>
Subject: Re: [PATCH v7 2/2] mfd: syscon: Add hardware spinlock support

On Tue, 23 Jan 2018, Baolin Wang wrote:

> Hi Lee,
> 
> On 22 January 2018 at 21:43, Lee Jones <lee.jones@...aro.org> wrote:
> > On Thu, 11 Jan 2018, Lee Jones wrote:
> >> On Mon, 25 Dec 2017, Baolin Wang wrote:
> >>
> >> > Some system control registers need hardware spinlock to synchronize
> >> > between the multiple subsystems, so we should add hardware spinlock
> >> > support for syscon.
> >> >
> >> > Signed-off-by: Baolin Wang <baolin.wang@...aro.org>
> >> > Acked-by: Rob Herring <robh@...nel.org>
> >> > ---
> >> > Changes since v6:
> >> >  - Treat hwlock id 0 as valid for regmap.
> >> >
> >> > Changes since v5:
> >> >  - Fix the case that hwspinlock is not enabled.
> >> >
> >> > Changes since v4:
> >> >  - Add one exapmle to show how to add hwlock.
> >> >  - Fix the coding style issue.
> >> >
> >> > Changes since v3:
> >> >  - Add error handling for of_hwspin_lock_get_id()
> >> >
> >> > Changes since v2:
> >> >  - Add acked tag from Rob.
> >> >
> >> > Changes since v1:
> >> >  - Remove timeout configuration.
> >> >  - Modify the binding file to add hwlocks.
> >> > ---
> >> >  Documentation/devicetree/bindings/mfd/syscon.txt |    8 ++++++++
> >> >  drivers/mfd/syscon.c                             |   19 +++++++++++++++++++
> >> >  2 files changed, 27 insertions(+)
> >>
> >> Applied, thanks.
> >
> > In order to avoid confusion, I should like to tell you that this patch
> > is applied for v4.17, not v4.16.
> 
> This patch has been applied into Mark's branch[1] with your ACK, so
> Mark should drop this patch from his branch and you will pick it and
> merge it into v4.17?
> 
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git/commit/?h=topic/hwspinlock&id=3bafc09e779710abaa7b836fe3bbeeeab7754c2b

Ah, this is the one that failed to build when merged alone.

Very well.  Ignore my last.

-- 
Lee Jones
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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