Re: [PATCH 2/2] ARM: dts: exynos: Remove interrupts from DMC controller in Exynos5422

[Lukasz Luba]

On 8/21/20 7:32 AM, Krzysztof Kozlowski wrote:
> On Fri, 21 Aug 2020 at 08:31, Krzysztof Kozlowski <krzk@xxxxxxxxxx> wrote:
> > On Mon, 17 Aug 2020 at 19:17, Lukasz Luba <lukasz.luba@xxxxxxx> wrote:
> > > Hi Krzysztof,
> > >
> > > On 8/17/20 4:50 PM, Krzysztof Kozlowski wrote:
> > > > On Wed, Jul 08, 2020 at 04:34:20PM +0100, Lukasz Luba wrote:
> > > > > The interrupts in Dynamic Memory Controller in Exynos5422 and Odroid
> > > > > XU3-family boards are no longer needed. They have been used in order
> > > > > to workaround some issues in scheduled work in devfreq. Now when the
> > > > > devfreq framework design is improved, remove the interrupt driven
> > > > > approach and rely on devfreq monitoring mechanism with fixed intervals.
> > > > >
> > > > > Reported-by: Willy Wolff <willy.mh.wolff.ml@xxxxxxxxx>
> > > > > Signed-off-by: Lukasz Luba <lukasz.luba@xxxxxxx>
> > > > > ---
> > > > >    arch/arm/boot/dts/exynos5420.dtsi | 3 ---
> > > > >    1 file changed, 3 deletions(-)
> > > >
> > > > I think the dependencies were merged so this can be safely applied
> > > > without bisectability problems?
> > >
> > > I have created v2 of that fix and it got merged
> > > via Chanwoo's tree, the commit 4fc9a0470d2dc37028
> > > https://lkml.org/lkml/2020/7/10/1048
> > >
> > > That commit switched the driver default mode from 'irq driven' to
> > > new devfreq monitoring mechanism. Furthermore, when the driver is
> > > built as a module, you can try to use the 'irq mode', but for this
> > > you would need the DT IRQs description (this $subject tries to remove).
> > >
> > > I would like to keep this IRQ mode for experimentation, as I
> > > described in answers to Bartek's questions:
> > > https://lkml.org/lkml/2020/7/14/315
> > >
> > > Unfortunately, I am quite busy and won't make any progress before the
> > > LPC.
> >
> > None of these were the actual answer to my question, unless by "v2 of
> > that fix and it got merged" means the dependencies?
> >
> > I'll drop it from the queue. Please resend if it is valid.
>
> Agh, not drop, I mean postpone for the next cycle (this is v5.11).

Fair enough

Regards,
Lukasz