From: Yong Wu <yong.wu@mediatek.com>
To: Joerg Roedel <joro@8bytes.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Robin Murphy <robin.murphy@arm.com>,
Rob Herring <robh+dt@kernel.org>
Cc: Tomasz Figa <tfiga@google.com>, Will Deacon <will.deacon@arm.com>,
<linux-mediatek@lists.infradead.org>,
<srv_heupstream@mediatek.com>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<iommu@lists.linux-foundation.org>, <arnd@arndb.de>,
<yingjoe.chen@mediatek.com>, <yong.wu@mediatek.com>,
<youlin.pei@mediatek.com>,
Nicolas Boichat <drinkcat@chromium.org>,
Arvind Yadav <arvind.yadav.cs@gmail.com>
Subject: [PATCH v4 15/18] iommu/mediatek: Add shutdown callback
Date: Sat, 8 Dec 2018 16:39:28 +0800 [thread overview]
Message-ID: <1544258371-4600-16-git-send-email-yong.wu@mediatek.com> (raw)
In-Reply-To: <1544258371-4600-1-git-send-email-yong.wu@mediatek.com>
In the reboot burning test, if some Multimedia HW has something wrong,
It may keep send the invalid request to IOMMU. In order to avoid
affect the reboot flow, we add the shutdown callback to disable
M4U HW when shutdown.
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
---
drivers/iommu/mtk_iommu.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index c3b4325..9280031 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -708,6 +708,11 @@ static int mtk_iommu_remove(struct platform_device *pdev)
return 0;
}
+static void mtk_iommu_shutdown(struct platform_device *pdev)
+{
+ mtk_iommu_remove(pdev);
+}
+
static int __maybe_unused mtk_iommu_suspend(struct device *dev)
{
struct mtk_iommu_data *data = dev_get_drvdata(dev);
@@ -785,6 +790,7 @@ static int __maybe_unused mtk_iommu_resume(struct device *dev)
static struct platform_driver mtk_iommu_driver = {
.probe = mtk_iommu_probe,
.remove = mtk_iommu_remove,
+ .shutdown = mtk_iommu_shutdown,
.driver = {
.name = "mtk-iommu",
.of_match_table = of_match_ptr(mtk_iommu_of_ids),
--
1.9.1
next prev parent reply other threads:[~2018-12-08 8:44 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-08 8:39 [PATCH v4 00/18] MT8183 IOMMU SUPPORT Yong Wu
2018-12-08 8:39 ` [PATCH v4 01/18] dt-bindings: mediatek: Add binding for mt8183 IOMMU and SMI Yong Wu
2018-12-08 8:39 ` [PATCH v4 02/18] iommu/mediatek: Use a struct as the platform data Yong Wu
2018-12-21 17:44 ` Matthias Brugger
2018-12-08 8:39 ` [PATCH v4 03/18] memory: mtk-smi: Use a general config_port interface Yong Wu
2018-12-21 17:47 ` Matthias Brugger
2018-12-22 3:57 ` Yong Wu
2018-12-08 8:39 ` [PATCH v4 04/18] memory: mtk-smi: Use a struct for the platform data for smi-common Yong Wu
2018-12-21 17:49 ` Matthias Brugger
2018-12-08 8:39 ` [PATCH v4 05/18] iommu/io-pgtable-arm-v7s: Add paddr_to_iopte and iopte_to_paddr helpers Yong Wu
2018-12-08 8:39 ` [PATCH v4 06/18] iommu/io-pgtable-arm-v7s: Extend MediaTek 4GB Mode Yong Wu
2018-12-08 8:39 ` [PATCH v4 07/18] iommu/mediatek: Add bclk can be supported optionally Yong Wu
2018-12-08 8:39 ` [PATCH v4 08/18] iommu/mediatek: Add larb-id remapped support Yong Wu
2018-12-21 3:35 ` Nicolas Boichat
2018-12-21 8:02 ` Yong Wu
2018-12-08 8:39 ` [PATCH v4 09/18] memory: mtk-smi: Add gals support Yong Wu
2018-12-08 8:39 ` [PATCH v4 10/18] iommu/mediatek: Add mt8183 IOMMU support Yong Wu
2018-12-21 4:43 ` Nicolas Boichat
2018-12-21 8:02 ` Yong Wu
2018-12-22 0:31 ` Nicolas Boichat
2018-12-22 3:57 ` Yong Wu
2018-12-21 18:31 ` Matthias Brugger
2018-12-22 3:58 ` Yong Wu
2018-12-08 8:39 ` [PATCH v4 11/18] iommu/mediatek: Add mmu1 support Yong Wu
2018-12-08 8:39 ` [PATCH v4 12/18] memory: mtk-smi: Invoke pm runtime_callback to enable clocks Yong Wu
2018-12-08 8:39 ` [PATCH v4 13/18] memory: mtk-smi: Add bus_sel for mt8183 Yong Wu
2018-12-21 4:47 ` Nicolas Boichat
2018-12-21 8:02 ` Yong Wu
2018-12-08 8:39 ` [PATCH v4 14/18] iommu/mediatek: Fix VLD_PA_RANGE register backup when suspend Yong Wu
2018-12-08 8:39 ` Yong Wu [this message]
2018-12-08 8:39 ` [PATCH v4 16/18] memory: mtk-smi: Get rid of need_larbid Yong Wu
2018-12-08 8:39 ` [PATCH v4 17/18] iommu/mediatek: Constify iommu_ops Yong Wu
2018-12-08 8:39 ` [PATCH v4 18/18] iommu/mediatek: Switch to SPDX license identifier Yong Wu
2018-12-11 9:52 ` [PATCH v4 00/18] MT8183 IOMMU SUPPORT Joerg Roedel
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