Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932345AbbBBMOo (ORCPT ); Mon, 2 Feb 2015 07:14:44 -0500 Received: from mailout1.w1.samsung.com ([210.118.77.11]:50020 "EHLO mailout1.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754814AbbBBMOl (ORCPT ); Mon, 2 Feb 2015 07:14:41 -0500 X-AuditID: cbfec7f4-b7f126d000001e9a-a9-54cf699c1755 Message-id: <54CF6A2C.5020808@samsung.com> Date: Mon, 02 Feb 2015 13:14:36 +0100 From: Karol Wrona User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-version: 1.0 To: Lorenzo Pieralisi , amit daniel kachhap Cc: "linux-pm@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "devicetree@vger.kernel.org" , "Rafael J. Wysocki" , Ulf Hansson , Bartlomiej Zolnierkiewicz , Kyungmin Park , Karol Wrona Subject: Re: [RFC PATCH 1/1] PM / domains: Add support for virtual power domains References: <1422555176-13054-1-git-send-email-k.wrona@samsung.com> <1422555176-13054-2-git-send-email-k.wrona@samsung.com> <20150130115708.GE8787@red-moon> In-reply-to: <20150130115708.GE8787@red-moon> Content-type: text/plain; charset=windows-1252 Content-transfer-encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrPLMWRmVeSWpSXmKPExsVy+t/xy7pzMs+HGNxqsLZouBpisXHGelaL +UfOsVqcbXrDbnF51xw2i8+9Rxgt3vx+wW5x5vQlVovja8Mt9qzbwuTA5bFm3hpGj52z7rJ7 3Lm2h81jy9V2Fo++LasYPT5vkgtgi+KySUnNySxLLdK3S+DKuLV+N1vBTo6Kp7PnszYwnmfr YuTkkBAwkZh9ph3KFpO4cG89kM3FISSwlFHi+uwrTCAJIYFPjBLvz7iC2LwCWhKHft8Aa2AR UJX4tvQzmM0moC7RvGMxM4gtKhAhMf/Ya2aIekGJH5PvsYDYIgJJEm+3bWUCWcAs0M8s8eDF AbCEsECAxLl3p5kgNj9nlFjcOwUswSmgK/H2206gDRxAHXoS9y9qgYSZBeQlNq95yzyBUWAW kh2zEKpmIalawMi8ilE0tTS5oDgpPddQrzgxt7g0L10vOT93EyMkEr7sYFx8zOoQowAHoxIP 7wPucyFCrIllxZW5hxglOJiVRHg1LM6HCPGmJFZWpRblxxeV5qQWH2Jk4uCUamDsTviwxS+G caFhRUnWBsUKfy9djWn8zwuvu1xh/pfqkr4s2IpJ+5676c2n229l/GmLerNaN7m85FOCJc/d Nr5jBU7nLt5Rzuizffgoidsy4dUOk1m5v8te1HA+CnipnblxnlfGjGqPV6XVf/qzdd6eD8zf 8vZ0v6hqJ3MsZ3OciFSjTrLJUiWW4oxEQy3mouJEAOfZJkViAgAA Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1297 Lines: 34 On 01/30/2015 12:57 PM, Lorenzo Pieralisi wrote: > On Fri, Jan 30, 2015 at 08:43:22AM +0000, amit daniel kachhap wrote: >> Hi Karol, >> >> I guess this patch series is not complete and use case implementation >> will be more helpful for clarity. Also I can think of another way in >> which this complete implementation can be done with pd name as >> something "pd-virt". This pd can be handled differently inside the >> platform specific exynos power off/on function. > > Yes, it would be nice to provide an example to understand what this > patchset has to achieve. Is this supposed to be a power domain > used as a container to check for devices runtime state ie dependencies ? > Yes, something like that. In our case exynos do not enter LPD state with mmc host working and its is in "top" pd which is not managed in conventional way. If we know runtime status of the host we can decide what to do. Soon I will send full patchset. I thought about it as exynos specific but I wonder if that would be needed not only in exynos. BR, Karol [...] -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/