korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2025-01-07 22:34:18 +08:00
Code Issues Packages Projects Releases Wiki Activity

ACPI/IORT: Enable stall support for platform devices

Browse Source 
Copy the "Stall supported" bit, that tells whether a named component
supports stall, into the dma-can-stall device property.

Acked-by: Hanjun Guo <guohanjun@huawei.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Link: https://lore.kernel.org/r/20210526161927.24268-3-jean-philippe@linaro.org
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Jean-Philippe Brucker 2021-05-26 18:19:27 +02:00 committed by Will Deacon
parent ed1d08b9d0
commit 6522b1e0c7
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/acpi/arm64/iort.c
View File

@ -968,13 +968,15 @@ static int iort_pci_iommu_init(struct pci_dev *pdev, u16 alias, void *data)
static void iort_named_component_init(struct device *dev,
struct acpi_iort_node *node)
{
struct property_entry props[2] = {};
struct property_entry props[3] = {};
struct acpi_iort_named_component *nc;
nc = (struct acpi_iort_named_component *)node->node_data;
props[0] = PROPERTY_ENTRY_U32("pasid-num-bits",
FIELD_GET(ACPI_IORT_NC_PASID_BITS,
nc->node_flags));
if (nc->node_flags & ACPI_IORT_NC_STALL_SUPPORTED)
props[1] = PROPERTY_ENTRY_BOOL("dma-can-stall");
if (device_add_properties(dev, props))
dev_warn(dev, "Could not add device properties\n");