[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <1510281175-27173-2-git-send-email-okaya@codeaurora.org>
Date: Thu, 9 Nov 2017 21:32:53 -0500
From: Sinan Kaya <okaya@...eaurora.org>
To: dmaengine@...r.kernel.org, timur@...eaurora.org
Cc: linux-arm-msm@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, robin.murphy@....com,
Sinan Kaya <okaya@...eaurora.org>, linux-kernel@...r.kernel.org
Subject: [PATCH V3 2/4] ACPI / bus: introduce acpi_device_get_match_data() function
OF has of_device_get_match_data() function to extract driver specific data
structure. Add a similar function for ACPI.
Signed-off-by: Sinan Kaya <okaya@...eaurora.org>
---
drivers/acpi/bus.c | 12 ++++++++++++
include/linux/acpi.h | 6 ++++++
2 files changed, 18 insertions(+)
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 4d0979e..da29c10 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -785,6 +785,18 @@ const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
}
EXPORT_SYMBOL_GPL(acpi_match_device);
+void *acpi_device_get_match_data(const struct device *dev)
+{
+ const struct acpi_device_id *match;
+
+ match = acpi_match_device(dev->driver->acpi_match_table, dev);
+ if (!match)
+ return NULL;
+
+ return (void *)match->driver_data;
+}
+EXPORT_SYMBOL_GPL(acpi_device_get_match_data);
+
int acpi_match_device_ids(struct acpi_device *device,
const struct acpi_device_id *ids)
{
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 502af53..62c85a5 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -584,6 +584,7 @@ extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
const struct device *dev);
+void *acpi_device_get_match_data(const struct device *dev);
extern bool acpi_driver_match_device(struct device *dev,
const struct device_driver *drv);
int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
@@ -755,6 +756,11 @@ static inline const struct acpi_device_id *acpi_match_device(
return NULL;
}
+static inline void *acpi_device_get_match_data(const struct device *dev)
+{
+ return NULL;
+}
+
static inline bool acpi_driver_match_device(struct device *dev,
const struct device_driver *drv)
{
--
1.9.1
Powered by blists - more mailing lists