linux-kernel - Re: [RFT v2 00/10] pinctrl: samsung: Remove ugly hack for sharing eint_wakeup

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Message-ID: <20180724194049.fpp5hi7hfy5w5mjj@kozik-lap>
Date:   Tue, 24 Jul 2018 21:40:49 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Marek Szyprowski <m.szyprowski@...sung.com>
Cc:     Tomasz Figa <tomasz.figa@...il.com>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Kukjin Kim <kgene@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-gpio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>,
        Sylwester Nawrocki <snawrocki@...nel.org>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Pankaj Dubey <pankaj.dubey@...sung.com>
Subject: Re: [RFT v2 00/10] pinctrl: samsung: Remove ugly hack for sharing
 eint_wakeup_mask

On Tue, Jul 24, 2018 at 11:18:13AM +0200, Marek Szyprowski wrote:
> Hi Krzysztof,
> 
> On 2018-07-23 19:52, Krzysztof Kozlowski wrote:
> > Hi All,
> >
> > Changes since v1
> > ================
> > 1. Add Tomasz's ack.
> > 2. Reword description in patch 6/10.
> >
> >
> > Tests
> > =====
> > This is both request for comments and requests for tests. Only basic
> > tests were done, including suspend to RAM on Odroid U3 (Exynos4412)
> > with max7768 RTC wakeup. Please kindly test it with devices capable of
> > suspending and resuming. I am mostly thinking about S5Pv210-based (Aria),
> > Trats, Trats2 and TM2 (Exynos5433). Existing platforms should not be
> > broken however changing external interrupt wakeup mask was not done
> > on Exynos5433.
> 
> Works fine on Exynos5433 TM2 with some additional patches related to
> suspend/resume handling of the PMU. It handles only EINT0..EINT31 pins
> for now. Exynos5433 has more external interrupt wakeup lines: EINT32-63
> located at banks GPF1[0..7], GPF2[0..3], GPF3[0..3], GPF4[0..7] and
> GPF5[0..7]. They can be configured as wakeup sources in
> EXYNOS5433_EINT_WAKEUP_MASK1 (0x062C) PMU register. Handling of them
> can be added later when it will be really needed.
> 
> Tested-by: Marek Szyprowski <m.szyprowski@...sung.com>

Thanks for comments and testing. Indeed support for Exynos5433 has to be
improved.

I would like to push 1-6 (which are needed for the rest) through current
cycle so I applied them to samsung-pinctrl tree.

Since anyway suspend to RAM is mostly broken nowadays... nothing more
should pop up.


Best regards,
Krzysztof