From: Zhang Rui <rui.zhang@intel.com>
To: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: bhelgaas@google.com, matthew.garrett@nebula.com,
rafael.j.wysocki@intel.com, dmitry.torokhov@gmail.com,
Zhang Rui <rui.zhang@intel.com>
Subject: [PATCH V2 09/13] ACPI: introduce acpi platform exclude id list
Date: Fri, 14 Mar 2014 00:16:49 +0800 [thread overview]
Message-ID: <1394727413-3587-10-git-send-email-rui.zhang@intel.com> (raw)
In-Reply-To: <1394727413-3587-1-git-send-email-rui.zhang@intel.com>
For ACPI PIC (PNP0000) and Timer (PNP0100) device objects, although
they have _HID control method, but they should not be enumerated to
platform bus, because there will never be any platform drivers for them.
Thus an exclude id list is introduced in this patch to prevent
those platform device nodes from being created.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
drivers/acpi/acpi_platform.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 33376a9..0cf291e 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -22,6 +22,17 @@
ACPI_MODULE_NAME("platform");
+static const struct acpi_device_id excluded_id_list[] = {
+ {"PNP0000", 0}, /* PIC */
+ {"PNP0100", 0}, /* Timer */
+ {"", 0},
+};
+
+static bool is_exclusive_device(struct acpi_device *dev)
+{
+ return (!acpi_match_device_ids(dev, excluded_id_list));
+}
+
/**
* acpi_create_platform_device - Create platform device for ACPI device node
* @adev: ACPI device node to create a platform device for.
@@ -48,6 +59,9 @@ int acpi_create_platform_device(struct acpi_device *adev,
if (adev->physical_node_count)
return 0;
+ if (is_exclusive_device(adev))
+ return 0;
+
INIT_LIST_HEAD(&resource_list);
count = acpi_dev_get_resources(adev, &resource_list, NULL, NULL);
if (count < 0) {
--
1.7.9.5
next prev parent reply other threads:[~2014-03-13 16:18 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-13 16:16 [PATCH V2 0/13] ACPI: change the way of enumerating PNPACPI/Platform devices Zhang Rui
2014-03-13 16:16 ` [PATCH V2 01/13] ACPI: introduce .match() callback for ACPI scan handler Zhang Rui
2014-03-13 16:16 ` [PATCH V2 02/13] PNPACPI: use whilte list for pnpacpi device enumeration Zhang Rui
2014-03-13 16:16 ` [PATCH V2 03/13] ACPI: remove ids that does not comply with the ACPI PNP id rule Zhang Rui
2014-03-13 16:16 ` [PATCH V2 04/13] ACPI: remove unsupported serial PNP ids from acpi pnp scan handler id lsit Zhang Rui
2014-03-13 16:16 ` [PATCH V2 05/13] ACPI: check and enumerate CMOS RTC devices explicitly Zhang Rui
2014-03-13 16:16 ` [PATCH V2 06/13] ACPI: introduce enumerable_id flag Zhang Rui
2014-03-15 1:03 ` Rafael J. Wysocki
2014-03-15 1:12 ` Zhang, Rui
2014-03-13 16:16 ` [PATCH V2 07/13] ACPI: use platform bus as the default bus for _HID enumeration Zhang Rui
2014-03-13 16:16 ` [PATCH V2 08/13] ACPI: introduce dummy lpss scan handler Zhang Rui
2014-03-13 16:16 ` Zhang Rui [this message]
2014-03-13 16:16 ` [RFC PATCH V2 10/13] Revert "ACPI / PNP: skip ACPI device nodes associated with physical nodes already" Zhang Rui
2014-03-13 16:16 ` [RFC PATCH V2 11/13] ACPI: create both PNP and Platform device nodes for PNP0C01/PNP0C02 Zhang Rui
2014-03-13 16:16 ` [RFC PATCH V2 12/13] ACPI: introduce dummy container scan handler Zhang Rui
2014-03-13 16:16 ` [RFC PATCH V2 13/13] ACPI: introduce dummy memory hotplug " Zhang Rui
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