From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753225AbbC3P5J (ORCPT ); Mon, 30 Mar 2015 11:57:09 -0400 Received: from bhuna.collabora.co.uk ([93.93.135.160]:43212 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752865AbbC3P4z (ORCPT ); Mon, 30 Mar 2015 11:56:55 -0400 Message-ID: <55197240.6010405@collabora.co.uk> Date: Mon, 30 Mar 2015 17:56:48 +0200 From: Javier Martinez Canillas User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.2.0 MIME-Version: 1.0 To: Chanwoo Choi CC: Kukjin Kim , Doug Anderson , Olof Johansson , Krzysztof Kozlowski , Abhilash Kesavan , Kevin Hilman , Tyler Baker , Steve Capper , Amit Kucheria , linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH 2/2] ARM: EXYNOS: Make sure that the Exynos5420 MDMA0 clock is enabled during suspend References: <1427466097-7287-1-git-send-email-javier.martinez@collabora.co.uk> <1427466097-7287-3-git-send-email-javier.martinez@collabora.co.uk> <5518AF17.2060207@samsung.com> In-Reply-To: <5518AF17.2060207@samsung.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello Chanwoo, Thanks a lot for your feedback. On 03/30/2015 04:04 AM, Chanwoo Choi wrote: > > I faced on the similiar issue. If some clock was disabled, > Exynos SoC could not enter the suspend mode > > But, I think it is not prpper method to resolve this issue. > about that that specific clock (e.g., mdma0) is handled in this dirver. > Also, ARM-64bit don't include any '../mach-exynos' directory. > > IMHO, some clock issue have to be handled in SoC clk driver or others. > Ok, Abhilash also said that before so I just posted another RFC: "[RFC PATCH v3 0/2] ARM: EXYNOS: Fix Suspend-to-RAM on Exynos5420" Please let me know if that is more aligned to what you were thinking as the proper solution. > > Best Regards, > Chanwoo Choi > Best regards, Javier