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[209.132.180.67]) by mx.google.com with ESMTP id zp8si29178866pac.130.2014.09.16.04.55.16 for ; Tue, 16 Sep 2014 04:55:17 -0700 (PDT) Received-SPF: none (google.com: linux-samsung-soc-owner@vger.kernel.org does not designate permitted sender hosts) client-ip=209.132.180.67; Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753854AbaIPLzK (ORCPT + 6 others); Tue, 16 Sep 2014 07:55:10 -0400 Received: from mailout1.w1.samsung.com ([210.118.77.11]:26243 "EHLO mailout1.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754325AbaIPLzF (ORCPT ); Tue, 16 Sep 2014 07:55:05 -0400 Received: from eucpsbgm2.samsung.com (unknown [203.254.199.245]) by mailout1.w1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0NBZ001OST8MWX80@mailout1.w1.samsung.com> for linux-samsung-soc@vger.kernel.org; Tue, 16 Sep 2014 12:57:58 +0100 (BST) X-AuditID: cbfec7f5-b7f776d000003e54-06-54182517ed13 Received: from eusync2.samsung.com ( [203.254.199.212]) by eucpsbgm2.samsung.com (EUCPMTA) with SMTP id E7.9C.15956.71528145; Tue, 16 Sep 2014 12:55:03 +0100 (BST) Received: from amdc1339.digital.local ([106.116.147.30]) by eusync2.samsung.com (Oracle Communications Messaging Server 7u4-23.01 (7.0.4.23.0) 64bit (built Aug 10 2011)) with ESMTPA id <0NBZ00CMIT3CL960@eusync2.samsung.com>; Tue, 16 Sep 2014 12:55:03 +0100 (BST) From: Marek Szyprowski To: iommu@lists.linux-foundation.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Marek Szyprowski , linaro-mm-sig@lists.linaro.org, Arnd Bergmann , Shaik Ameer Basha , Cho KyongHo , Joerg Roedel , Thierry Reding , Olof Johansson , Laurent Pinchart , Rob Herring , Will Deacon , David Wodhouse , Inki Dae , Kukjin Kim , Tomasz Figa , Kyungmin Park Subject: [PATCH v2 13/18] iommu: exynos: add support for runtime_pm Date: Tue, 16 Sep 2014 13:54:40 +0200 Message-id: <1410868485-4143-14-git-send-email-m.szyprowski@samsung.com> X-Mailer: git-send-email 1.9.2 In-reply-to: <1410868485-4143-1-git-send-email-m.szyprowski@samsung.com> References: <1410868485-4143-1-git-send-email-m.szyprowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrFLMWRmVeSWpSXmKPExsVy+t/xK7riqhIhBhsuK1r8nXSM3WLiysnM FpPuT2CxWLDf2qJz9gZ2i94FV9kszja9YbfonLiE3eLLlYdMFpseX2O1mHF+H5PF2iN32S1O Xf/MZvGv9yCjxf89O9gtjjzczW6xatcfRovbv/ksXn48weIg7PHk4DwmjzXz1jB6/P41idFj 56y77B6zO2ayemxeoeWxaVUnm8fmJfUet/89ZvaYfGM5o8eVE02sHr3N79g8+rasYvT4vEku gC+KyyYlNSezLLVI3y6BK2N26xzGgk/sFWset7A3MB5g62Lk4JAQMJF40OnbxcgJZIpJXLi3 HijMxSEksJRRYu6Dj1BOH5PE5snX2UGq2AQMJbredrGB2CIC+RIv9v5lAbGZBd6wSNzbZAhi Cws4S6w4dpYJxGYRUJXo6bvOCGLzCnhIbJt3hR1im5zE/5crwGo4geKT254wg9hCAu4SH7+d YprAyLuAkWEVo2hqaXJBcVJ6rpFecWJucWleul5yfu4mRkh8fN3BuPSY1SFGAQ5GJR7ejH/i IUKsiWXFlbmHGCU4mJVEeDUUJUKEeFMSK6tSi/Lji0pzUosPMTJxcEo1MIZf8hL5olWll2ux R3tODsuk3Vy9M1lNvmwoKX/7R23J9MleS4y1mYQXdX8sWPx42Y2GoEvtr+ynKWtonFA8k57+ RWqdnqPS/MUKPh9PJ+7deFyId9n063Mm3uha+6/C7d+JO7wNHKUHLfU/bqpQr16wZuMxz03+ q5f/3ZRlIX+t6EvVzU2zth9VYinOSDTUYi4qTgQAw9yIRG0CAAA= Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: list List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: m.szyprowski@samsung.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.217.176 as permitted sender) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , This patch fixes support for runtime power management for SYSMMU controllers, so they are enabled when master device is attached. Signed-off-by: Marek Szyprowski --- drivers/iommu/exynos-iommu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index cf36cdecf335..5a6d3d0af61e 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -696,6 +696,7 @@ static int exynos_iommu_attach_device(struct iommu_domain *domain, return -ENODEV; list_for_each_entry(data, &owner->clients, owner_node) { + pm_runtime_get_sync(data->sysmmu); ret = __sysmmu_enable(data, pagetable, domain); if (ret >= 0) { data->master = dev; @@ -737,6 +738,7 @@ static void exynos_iommu_detach_device(struct iommu_domain *domain, data->master = NULL; list_del_init(&data->domain_node); } + pm_runtime_put(data->sysmmu); found = true; } }