From: Linus Walleij <linus.walleij@linaro.org>
To: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>,
"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
linux-samsung-soc <linux-samsung-soc@vger.kernel.org>,
Sylwester Nawrocki <s.nawrocki@samsung.com>,
Tomasz Figa <tomasz.figa@gmail.com>,
Ulf Hansson <ulf.hansson@linaro.org>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>
Subject: Re: [PATCH 7/9] pinctrl: samsung: Add property to mark pad state as suitable for power down
Date: Fri, 30 Dec 2016 10:23:05 +0100 [thread overview]
Message-ID: <CACRpkdYzGjxyePcc-WiWDoX9rF6mP+mqCtk=zBUGb0-DvAjxvA@mail.gmail.com> (raw)
In-Reply-To: <20161227153331.jbh7ei6oh3obmnri@kozik-lap>
On Tue, Dec 27, 2016 at 4:33 PM, Krzysztof Kozlowski <krzk@kernel.org> wrote:
> On Tue, Dec 27, 2016 at 11:30:57AM +0100, Marek Szyprowski wrote:
>> Separate sleep state is needed because of the pin control bindings and
>> design.
>>
>> A separate sleep state is required to let pin control client driver (in this
>> case
>> Exynos I2S driver) let to choose when it is okay to switch pads into sleep
>> state and I see no other way to achieve this.
>
> Maybe the pinctrl API should be extended for this? Doing this in DTS
> just for purpose of passing information between drivers (consumer and
> provider) looks odd.
I don't understand what is going on but you are all smart people so I
guess you're right :)
Tell me if I can help clarifying something...
Yours,
Linus Walleij
next prev parent reply other threads:[~2016-12-30 9:23 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20161223122513epcas1p394d93d72d2d32c8910aafd1f6cc6b5e2@epcas1p3.samsung.com>
2016-12-23 12:24 ` [PATCH 0/9] Runtime PM for Exynos pin controller driver Marek Szyprowski
[not found] ` <CGME20161223122516epcas5p41c9d3f1e805293ee7f000d614452ba6f@epcas5p4.samsung.com>
2016-12-23 12:24 ` [PATCH 1/9] ARM: dts: exynos: Add PMU syscon to pinctrl nodes Marek Szyprowski
2016-12-26 5:36 ` Tomasz Figa
[not found] ` <CGME20161223122520epcas1p443154371ae2f94b89e738051780a8e6b@epcas1p4.samsung.com>
2016-12-23 12:24 ` [PATCH 2/9] ARM: dts: exynos: Add pinctrl sleep state for 542x i2s module Marek Szyprowski
2016-12-26 5:39 ` Tomasz Figa
[not found] ` <CGME20161223122524epcas1p4f0235bcdabe1e7bffa141e0b2e32de7f@epcas1p4.samsung.com>
2016-12-23 12:24 ` [PATCH 3/9] pinctrl: samsung: Remove dead code Marek Szyprowski
2016-12-25 12:51 ` Krzysztof Kozlowski
2016-12-26 5:40 ` Tomasz Figa
[not found] ` <CGME20161223122527epcas1p441f0ee34c5738645163ef40c94591183@epcas1p4.samsung.com>
2016-12-23 12:24 ` [PATCH 4/9] pinctrl: samsung: Use generic of_device_get_match_data helper Marek Szyprowski
2016-12-25 12:56 ` Krzysztof Kozlowski
2016-12-26 5:44 ` Tomasz Figa
2016-12-26 9:41 ` Krzysztof Kozlowski
[not found] ` <CGME20161227102821epcas1p334154772e0a1f636795994ca5bcc5eac@epcas1p3.samsung.com>
2016-12-27 10:28 ` Bartlomiej Zolnierkiewicz
[not found] ` <CGME20161223122531epcas1p4b8fad6664dad3408acb7a1b9f140884a@epcas1p4.samsung.com>
2016-12-23 12:24 ` [PATCH 5/9] pinctrl: samsung: Move retention control from mach-exynos to the pinctrl driver Marek Szyprowski
2016-12-25 13:42 ` Krzysztof Kozlowski
2016-12-27 10:15 ` Marek Szyprowski
2016-12-26 5:55 ` Tomasz Figa
2016-12-27 10:12 ` Marek Szyprowski
2016-12-27 15:39 ` Krzysztof Kozlowski
2016-12-30 9:19 ` Linus Walleij
[not found] ` <CGME20161223122535epcas1p475bc33007e9ea9b206dec6d10d019d7f@epcas1p4.samsung.com>
2016-12-23 12:24 ` [PATCH 6/9] pinctrl: samsung: Replace syscore ops with standard platform device pm_ops Marek Szyprowski
2016-12-25 18:47 ` Krzysztof Kozlowski
2016-12-26 5:57 ` Tomasz Figa
2016-12-27 10:17 ` Marek Szyprowski
[not found] ` <CGME20161223122538epcas5p29515ceff21963ab035b3b32878830ce2@epcas5p2.samsung.com>
2016-12-23 12:24 ` [PATCH 7/9] pinctrl: samsung: Add property to mark pad state as suitable for power down Marek Szyprowski
2016-12-25 19:19 ` Krzysztof Kozlowski
2016-12-26 6:02 ` Tomasz Figa
2016-12-27 10:30 ` Marek Szyprowski
2016-12-27 15:33 ` Krzysztof Kozlowski
2016-12-30 9:23 ` Linus Walleij [this message]
2016-12-30 11:55 ` Marek Szyprowski
[not found] ` <bad5ef6a-6132-2029-8581-2e8b27f7a2bd-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2016-12-30 15:05 ` Krzysztof Kozlowski
[not found] ` <CGME20161223122542epcas1p444c9d8c91c2983f9934e68a6bb882726@epcas1p4.samsung.com>
2016-12-23 12:24 ` [PATCH 8/9] pinctrl: samsung: Add runtime PM support Marek Szyprowski
2016-12-25 19:26 ` Krzysztof Kozlowski
2016-12-26 6:11 ` Tomasz Figa
[not found] ` <CGME20161223122546epcas5p2ebbcb8ca510646698bbd1ddbe0a0e889@epcas5p2.samsung.com>
2016-12-23 12:24 ` [PATCH 9/9] ARM: dts: exynos: Add audio power domain support to Exynos542x SoCs Marek Szyprowski
2016-12-24 10:10 ` [PATCH 0/9] Runtime PM for Exynos pin controller driver Anand Moon
2016-12-27 8:29 ` Marek Szyprowski
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