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authorBjorn Helgaas <bjorn.helgaas@hp.com>2009-11-17 17:05:19 -0700
committerLen Brown <len.brown@intel.com>2009-12-15 17:35:26 -0500
commit9065ce4500085b9ca66b19d3c4d21a73cb410173 (patch)
treec487e3f9b3b56cc829ea2362a33b888a42d83f8f /drivers/pnp/pnpacpi
parentc4da6940a7a41c72781ff2d62ebd4b99f3749f14 (diff)
downloadlinux-linaro-stable-9065ce4500085b9ca66b19d3c4d21a73cb410173.tar.gz
PNP: add interface to retrieve ACPI device from a PNPACPI device
Add pnp_acpi_device(pnp_dev), which takes a PNP device and returns the associated ACPI device (or NULL, if the device is not a PNPACPI device). This allows us to write a PNP driver that can manage both traditional PNPBIOS and ACPI devices, treating ACPI-only functionality as an optional extension. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/pnp/pnpacpi')
-rw-r--r--drivers/pnp/pnpacpi/core.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c
index b2348fc2378e..5314bf630bc4 100644
--- a/drivers/pnp/pnpacpi/core.c
+++ b/drivers/pnp/pnpacpi/core.c
@@ -144,7 +144,7 @@ static int pnpacpi_resume(struct pnp_dev *dev)
}
#endif
-static struct pnp_protocol pnpacpi_protocol = {
+struct pnp_protocol pnpacpi_protocol = {
.name = "Plug and Play ACPI",
.get = pnpacpi_get_resources,
.set = pnpacpi_set_resources,
@@ -154,6 +154,7 @@ static struct pnp_protocol pnpacpi_protocol = {
.resume = pnpacpi_resume,
#endif
};
+EXPORT_SYMBOL(pnpacpi_protocol);
static int __init pnpacpi_add_device(struct acpi_device *device)
{