* [PATCH] iommu: of: Fix check for returning EPROBE_DEFER
@ 2017-05-16 5:24 Sricharan R
2017-05-16 14:09 ` Jonathan Neuschäfer
0 siblings, 1 reply; 3+ messages in thread
From: Sricharan R @ 2017-05-16 5:24 UTC (permalink / raw)
To: robin.murphy, will.deacon, joro, lorenzo.pieralisi, iommu,
linux-arm-kernel, linux-arm-msm, m.szyprowski, bhelgaas,
linux-pci, linux-acpi, tn, hanjun.guo, okaya, robh+dt,
frowand.list, devicetree, linux-kernel, sudeep.holla, rjw, lenb,
catalin.marinas, arnd, linux-arch, gregkh
Cc: sricharan
While returning EPROBE_DEFER for iommu masters
take in to account of iommu nodes that could be
marked in DT as 'status=disabled', in which case
simply return NULL and let the master's probe
continue rather than deferring.
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Tested-by: Will Deacon <will.deacon@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
---
drivers/iommu/of_iommu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index 9f44ee8..e6e9bec 100644
--- a/drivers/iommu/of_iommu.c
+++ b/drivers/iommu/of_iommu.c
@@ -118,6 +118,7 @@ static bool of_iommu_driver_present(struct device_node *np)
ops = iommu_ops_from_fwnode(fwnode);
if ((ops && !ops->of_xlate) ||
+ !of_device_is_available(iommu_spec->np) ||
(!ops && !of_iommu_driver_present(iommu_spec->np)))
return NULL;
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] iommu: of: Fix check for returning EPROBE_DEFER
2017-05-16 5:24 [PATCH] iommu: of: Fix check for returning EPROBE_DEFER Sricharan R
@ 2017-05-16 14:09 ` Jonathan Neuschäfer
2017-05-17 5:17 ` Sricharan R
0 siblings, 1 reply; 3+ messages in thread
From: Jonathan Neuschäfer @ 2017-05-16 14:09 UTC (permalink / raw)
To: Sricharan R
Cc: catalin.marinas, will.deacon, okaya, frowand.list, m.szyprowski,
linux-arch, lorenzo.pieralisi, tn, joro, linux-acpi, linux-pci,
lenb, devicetree, arnd, linux-arm-msm, robh+dt, bhelgaas,
linux-arm-kernel, gregkh, rjw, linux-kernel, iommu, hanjun.guo,
sudeep.holla, robin.murphy
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] iommu: of: Fix check for returning EPROBE_DEFER
2017-05-16 14:09 ` Jonathan Neuschäfer
@ 2017-05-17 5:17 ` Sricharan R
0 siblings, 0 replies; 3+ messages in thread
From: Sricharan R @ 2017-05-17 5:17 UTC (permalink / raw)
To: Jonathan Neuschäfer
Cc: catalin.marinas, will.deacon, okaya, frowand.list, m.szyprowski,
linux-arch, lorenzo.pieralisi, tn, joro, linux-acpi, linux-pci,
lenb, devicetree, arnd, linux-arm-msm, robh+dt, bhelgaas,
linux-arm-kernel, gregkh, rjw, linux-kernel, iommu, hanjun.guo,
sudeep.holla, robin.murphy
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2017-05-16 5:24 [PATCH] iommu: of: Fix check for returning EPROBE_DEFER Sricharan R
2017-05-16 14:09 ` Jonathan Neuschäfer
2017-05-17 5:17 ` Sricharan R
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