From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vivek Gautam Subject: [PATCH v16 3/5] iommu/arm-smmu: Add the device_link between masters and smmu Date: Thu, 30 Aug 2018 20:15:39 +0530 Message-ID: <20180830144541.17740-4-vivek.gautam@codeaurora.org> References: <20180830144541.17740-1-vivek.gautam@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20180830144541.17740-1-vivek.gautam-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: freedreno-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Freedreno" To: joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, robin.murphy-5wv7dgnIgG8@public.gmane.org, will.deacon-5wv7dgnIgG8@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: mark.rutland-5wv7dgnIgG8@public.gmane.org, architt-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, jcrouse-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, sboyd-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, sricharan-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, rjw-LthD3rsA81gm4RdzfppkhA@public.gmane.org, robdclark-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, tfiga-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, Vivek Gautam , linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, freedreno-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, m.szyprowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org List-Id: linux-arm-msm@vger.kernel.org RnJvbTogU3JpY2hhcmFuIFIgPHNyaWNoYXJhbkBjb2RlYXVyb3JhLm9yZz4KCkZpbmFsbHkgYWRk IHRoZSBkZXZpY2UgbGluayBiZXR3ZWVuIHRoZSBtYXN0ZXIgZGV2aWNlIGFuZApzbW11LCBzbyB0 aGF0IHRoZSBzbW11IGdldHMgcnVudGltZSBlbmFibGVkL2Rpc2FibGVkIG9ubHkgd2hlbiB0aGUK bWFzdGVyIG5lZWRzIGl0LiBUaGlzIGlzIGRvbmUgZnJvbSBhZGRfZGV2aWNlIGNhbGxiYWNrIHdo aWNoIGdldHMKY2FsbGVkIG9uY2Ugd2hlbiB0aGUgbWFzdGVyIGlzIGFkZGVkIHRvIHRoZSBzbW11 LgoKU2lnbmVkLW9mZi1ieTogU3JpY2hhcmFuIFIgPHNyaWNoYXJhbkBjb2RlYXVyb3JhLm9yZz4K U2lnbmVkLW9mZi1ieTogVml2ZWsgR2F1dGFtIDx2aXZlay5nYXV0YW1AY29kZWF1cm9yYS5vcmc+ ClJldmlld2VkLWJ5OiBUb21hc3ogRmlnYSA8dGZpZ2FAY2hyb21pdW0ub3JnPgpUZXN0ZWQtYnk6 IFNyaW5pdmFzIEthbmRhZ2F0bGEgPHNyaW5pdmFzLmthbmRhZ2F0bGFAbGluYXJvLm9yZz4KLS0t CiBkcml2ZXJzL2lvbW11L2FybS1zbW11LmMgfCAzICsrKwogMSBmaWxlIGNoYW5nZWQsIDMgaW5z ZXJ0aW9ucygrKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvaW9tbXUvYXJtLXNtbXUuYyBiL2RyaXZl cnMvaW9tbXUvYXJtLXNtbXUuYwppbmRleCAxYmY1NDIwMTBiZTcuLjE2NmM4YzZkYTI0ZiAxMDA2 NDQKLS0tIGEvZHJpdmVycy9pb21tdS9hcm0tc21tdS5jCisrKyBiL2RyaXZlcnMvaW9tbXUvYXJt LXNtbXUuYwpAQCAtMTQ2MSw2ICsxNDYxLDkgQEAgc3RhdGljIGludCBhcm1fc21tdV9hZGRfZGV2 aWNlKHN0cnVjdCBkZXZpY2UgKmRldikKIAogCWlvbW11X2RldmljZV9saW5rKCZzbW11LT5pb21t dSwgZGV2KTsKIAorCWRldmljZV9saW5rX2FkZChkZXYsIHNtbXUtPmRldiwKKwkJCURMX0ZMQUdf UE1fUlVOVElNRSB8IERMX0ZMQUdfQVVUT1JFTU9WRV9TVVBQTElFUik7CisKIAlyZXR1cm4gMDsK IAogb3V0X2NmZ19mcmVlOgotLSAKUVVBTENPTU0gSU5ESUEsIG9uIGJlaGFsZiBvZiBRdWFsY29t bSBJbm5vdmF0aW9uIENlbnRlciwgSW5jLiBpcyBhIG1lbWJlcgpvZiBDb2RlIEF1cm9yYSBGb3J1 bSwgaG9zdGVkIGJ5IFRoZSBMaW51eCBGb3VuZGF0aW9uCgpfX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fXwpGcmVlZHJlbm8gbWFpbGluZyBsaXN0CkZyZWVkcmVu b0BsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFp bG1hbi9saXN0aW5mby9mcmVlZHJlbm8K From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,T_DKIM_INVALID, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 222E6C433F5 for ; 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h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BbukAaWmoYK1flrVlDnCnpWjxEbLVl8jyEevhPNLTAdT8BzrdCMACOTvmY1NYVFJh 12okkq5vGyrWd+gAhwlSzm8lqH5foUNKw4p4LCickoN3rRE6IdY6aXWMzA9zESf3mL Kd0spEUI4enKFxDFYsG/28E2ZBFSW0X/nD5oKoMk= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 8FFEB60540 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=vivek.gautam@codeaurora.org From: Vivek Gautam To: joro@8bytes.org, robh+dt@kernel.org, robin.murphy@arm.com, will.deacon@arm.com, iommu@lists.linux-foundation.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: alex.williamson@redhat.com, mark.rutland@arm.com, rjw@rjwysocki.net, robdclark@gmail.com, linux-pm@vger.kernel.org, freedreno@lists.freedesktop.org, sboyd@kernel.org, tfiga@chromium.org, jcrouse@codeaurora.org, sricharan@codeaurora.org, m.szyprowski@samsung.com, architt@codeaurora.org, linux-arm-msm@vger.kernel.org, Vivek Gautam Subject: [PATCH v16 3/5] iommu/arm-smmu: Add the device_link between masters and smmu Date: Thu, 30 Aug 2018 20:15:39 +0530 Message-Id: <20180830144541.17740-4-vivek.gautam@codeaurora.org> X-Mailer: git-send-email 2.16.1.72.g5be1f00a9a70 In-Reply-To: <20180830144541.17740-1-vivek.gautam@codeaurora.org> References: <20180830144541.17740-1-vivek.gautam@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sricharan R Finally add the device link between the master device and smmu, so that the smmu gets runtime enabled/disabled only when the master needs it. This is done from add_device callback which gets called once when the master is added to the smmu. Signed-off-by: Sricharan R Signed-off-by: Vivek Gautam Reviewed-by: Tomasz Figa Tested-by: Srinivas Kandagatla --- drivers/iommu/arm-smmu.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index 1bf542010be7..166c8c6da24f 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1461,6 +1461,9 @@ static int arm_smmu_add_device(struct device *dev) iommu_device_link(&smmu->iommu, dev); + device_link_add(dev, smmu->dev, + DL_FLAG_PM_RUNTIME | DL_FLAG_AUTOREMOVE_SUPPLIER); + return 0; out_cfg_free: -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation