From: Yong Wu <yong.wu@mediatek.com>
To: Matthias Brugger <matthias.bgg@gmail.com>,
Joerg Roedel <joro@8bytes.org>, Rob Herring <robh+dt@kernel.org>
Cc: youlin.pei@mediatek.com, devicetree@vger.kernel.org,
Nicolas Boichat <drinkcat@chromium.org>,
cui.zhang@mediatek.com, srv_heupstream@mediatek.com,
chao.hao@mediatek.com, Will Deacon <will.deacon@arm.com>,
linux-kernel@vger.kernel.org, Evan Green <evgreen@chromium.org>,
Tomasz Figa <tfiga@google.com>,
iommu@lists.linux-foundation.org,
Matthias Kaehlcke <mka@chromium.org>,
linux-mediatek@lists.infradead.org, ming-fan.chen@mediatek.com,
anan.sun@mediatek.com, Robin Murphy <robin.murphy@arm.com>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 11/14] memory: mtk-smi: Use device_is_bound to check if smi-common is ready
Date: Tue, 3 Sep 2019 17:37:33 +0800 [thread overview]
Message-ID: <1567503456-24725-12-git-send-email-yong.wu@mediatek.com> (raw)
In-Reply-To: <1567503456-24725-1-git-send-email-yong.wu@mediatek.com>
smi-larb driver should run after smi-common, Use device_is_bound to confirm
whether smicommon driver is ready.
CC: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
---
drivers/memory/mtk-smi.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c
index 3df9036..789d2ab 100644
--- a/drivers/memory/mtk-smi.c
+++ b/drivers/memory/mtk-smi.c
@@ -296,8 +296,14 @@ static int mtk_smi_larb_probe(struct platform_device *pdev)
smi_pdev = of_find_device_by_node(smi_node);
of_node_put(smi_node);
if (smi_pdev) {
- if (!platform_get_drvdata(smi_pdev))
+ bool smicommon_is_bound;
+
+ device_lock(&smi_pdev->dev);
+ smicommon_is_bound = device_is_bound(&smi_pdev->dev);
+ device_unlock(&smi_pdev->dev);
+ if (!smicommon_is_bound)
return -EPROBE_DEFER;
+
larb->smi_common_dev = &smi_pdev->dev;
link = device_link_add(dev, larb->smi_common_dev,
DL_FLAG_PM_RUNTIME | DL_FLAG_STATELESS);
--
1.9.1
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next prev parent reply other threads:[~2019-09-03 9:39 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-03 9:37 [PATCH v3 00/14] Clean up "mediatek,larb" after adding device_link Yong Wu
2019-09-03 9:37 ` [PATCH v3 01/14] dt-binding: mediatek: Get rid of mediatek, larb for multimedia HW Yong Wu
2019-09-03 9:37 ` [PATCH v3 02/14] iommu/mediatek: Add probe_defer for smi-larb Yong Wu
2019-09-03 9:37 ` [PATCH v3 03/14] iommu/mediatek: Add device_link between the consumer and the larb devices Yong Wu
2020-03-05 5:14 ` Nicolas Boichat
2020-03-06 6:59 ` Yong Wu
2019-09-03 9:37 ` [PATCH v3 04/14] memory: mtk-smi: Add device-link between smi-larb and smi-common Yong Wu
2019-09-03 9:37 ` [PATCH v3 05/14] media: mtk-jpeg: Get rid of mtk_smi_larb_get/put Yong Wu
2019-09-03 9:37 ` [PATCH v3 06/14] media: mtk-mdp: " Yong Wu
2019-09-03 9:37 ` [PATCH v3 07/14] media: mtk-vcodec: " Yong Wu
2019-09-03 9:37 ` [PATCH v3 08/14] drm/mediatek: " Yong Wu
2019-09-03 9:37 ` [PATCH v3 09/14] memory: mtk-smi: " Yong Wu
2019-09-03 9:37 ` [PATCH v3 10/14] iommu/mediatek: Use builtin_platform_driver Yong Wu
2019-09-03 9:37 ` Yong Wu [this message]
2019-09-03 9:37 ` [PATCH v3 12/14] drm/mediatek: Add pm runtime support for ovl and rdma Yong Wu
2019-09-16 7:55 ` CK Hu
2019-09-03 9:37 ` [PATCH v3 13/14] arm: dts: mediatek: Get rid of mediatek, larb for MM nodes Yong Wu
2019-09-03 9:37 ` [PATCH v3 14/14] arm64: " Yong Wu
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