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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-03-16 23:49:08 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-03-16 23:49:08 +0100 |
| commit | ca5b74d2675a44f54aacb919c1cf022463e2f738 (patch) | |
| tree | 08081e436bfed580e7f5a059faa1c77da3dbd58e /drivers | |
| parent | driver core / ACPI: Represent ACPI companions using fwnode_handle (diff) | |
| download | linux-ca5b74d2675a44f54aacb919c1cf022463e2f738.tar.xz linux-ca5b74d2675a44f54aacb919c1cf022463e2f738.zip | |
ACPI: Introduce has_acpi_companion()
Now that the ACPI companions of devices are represented by pointers
to struct fwnode_handle, it is not quite efficient to check whether
or not an ACPI companion of a device is present by evaluating the
ACPI_COMPANION() macro.
For this reason, introduce a special static inline routine for that,
has_acpi_companion(), and update the code to use it where applicable.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/glue.c | 4 | ||||
| -rw-r--r-- | drivers/i2c/busses/i2c-designware-platdrv.c | 4 | ||||
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 2 |
3 files changed, 5 insertions, 5 deletions
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index f774c65ecb8b..39c485b0c25c 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -168,7 +168,7 @@ int acpi_bind_one(struct device *dev, struct acpi_device *acpi_dev) unsigned int node_id; int retval = -EINVAL; - if (ACPI_COMPANION(dev)) { + if (has_acpi_companion(dev)) { if (acpi_dev) { dev_warn(dev, "ACPI companion already set\n"); return -EINVAL; @@ -220,7 +220,7 @@ int acpi_bind_one(struct device *dev, struct acpi_device *acpi_dev) list_add(&physical_node->node, physnode_list); acpi_dev->physical_node_count++; - if (!ACPI_COMPANION(dev)) + if (!has_acpi_companion(dev)) ACPI_COMPANION_SET(dev, acpi_dev); acpi_physnode_link_name(physical_node_name, node_id); diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index c270f5f9a8f9..538d6910b550 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -166,7 +166,7 @@ static int dw_i2c_probe(struct platform_device *pdev) /* fast mode by default because of legacy reasons */ clk_freq = 400000; - if (ACPI_COMPANION(&pdev->dev)) { + if (has_acpi_companion(&pdev->dev)) { dw_i2c_acpi_configure(pdev); } else if (pdev->dev.of_node) { of_property_read_u32(pdev->dev.of_node, @@ -286,7 +286,7 @@ static int dw_i2c_remove(struct platform_device *pdev) pm_runtime_put(&pdev->dev); pm_runtime_disable(&pdev->dev); - if (ACPI_COMPANION(&pdev->dev)) + if (has_acpi_companion(&pdev->dev)) dw_i2c_acpi_unconfigure(pdev); return 0; diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index ae4c1a854e57..591b84331315 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -684,7 +684,7 @@ static struct intel_iommu *device_to_iommu(struct device *dev, u8 *bus, u8 *devf if (dev_is_pci(dev)) { pdev = to_pci_dev(dev); segment = pci_domain_nr(pdev->bus); - } else if (ACPI_COMPANION(dev)) + } else if (has_acpi_companion(dev)) dev = &ACPI_COMPANION(dev)->dev; rcu_read_lock(); |