From d706c1b050274b3bf97d7cb0542c0d070c9ccb8b Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Tue, 13 Apr 2010 16:12:28 -0700 Subject: driver-core: Add device node pointer to struct device Currently, platforms using CONFIG_OF add a 'struct device_node *of_node' to dev->archdata. However, with CONFIG_OF becoming generic for all architectures, it makes sense for commonality to move it out of archdata and into struct device proper. This patch adds a struct device_node *of_node member to struct device and updates all locations which currently write the device_node pointer into archdata to also update dev->of_node. Subsequent patches will modify callers to use the archdata location and ultimately remove the archdata member entirely. Signed-off-by: Grant Likely Acked-by: Greg Kroah-Hartman CC: Michal Simek CC: Greg Kroah-Hartman CC: Benjamin Herrenschmidt CC: "David S. Miller" CC: Stephen Rothwell CC: Jeremy Kerr CC: microblaze-uclinux@itee.uq.edu.au CC: linux-kernel@vger.kernel.org CC: linuxppc-dev@ozlabs.org CC: sparclinux@vger.kernel.org --- include/linux/device.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux/device.h') diff --git a/include/linux/device.h b/include/linux/device.h index 182192892d4..7a968bdb02e 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -34,6 +34,7 @@ struct class; struct class_private; struct bus_type; struct bus_type_private; +struct device_node; struct bus_attribute { struct attribute attr; @@ -433,6 +434,9 @@ struct device { override */ /* arch specific additions */ struct dev_archdata archdata; +#ifdef CONFIG_OF + struct device_node *of_node; +#endif dev_t devt; /* dev_t, creates the sysfs "dev" */ -- cgit v1.2.3-70-g09d2 From 597b9d1e44e9ba69f2454a5318bbe7a6d5e6930a Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Tue, 13 Apr 2010 16:13:01 -0700 Subject: drivercore: Add of_match_table to the common device drivers OF-style matching can be available to any device, on any type of bus. This patch allows any driver to provide an OF match table when CONFIG_OF is enabled so that drivers can be bound against devices described in the device tree. Signed-off-by: Grant Likely Acked-by: Greg Kroah-Hartman --- arch/powerpc/kernel/ibmebus.c | 5 ++++- drivers/macintosh/macio_asic.c | 5 ++--- drivers/of/platform.c | 7 ++++--- include/linux/device.h | 4 ++++ 4 files changed, 14 insertions(+), 7 deletions(-) (limited to 'include/linux/device.h') diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c index a9f31631a29..355257bb149 100644 --- a/arch/powerpc/kernel/ibmebus.c +++ b/arch/powerpc/kernel/ibmebus.c @@ -201,8 +201,11 @@ static int ibmebus_create_devices(const struct of_device_id *matches) int ibmebus_register_driver(struct of_platform_driver *drv) { + if (!drv->driver.of_match_table) + drv->driver.of_match_table = drv->match_table; + /* If the driver uses devices that ibmebus doesn't know, add them */ - ibmebus_create_devices(drv->match_table); + ibmebus_create_devices(drv->driver.of_match_table); return of_register_driver(drv, &ibmebus_bus_type); } diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c index 48a5f040686..e3ba1d8001a 100644 --- a/drivers/macintosh/macio_asic.c +++ b/drivers/macintosh/macio_asic.c @@ -40,8 +40,7 @@ static struct macio_chip *macio_on_hold; static int macio_bus_match(struct device *dev, struct device_driver *drv) { struct macio_dev * macio_dev = to_macio_device(dev); - struct macio_driver * macio_drv = to_macio_driver(drv); - const struct of_device_id * matches = macio_drv->match_table; + const struct of_device_id * matches = drv->of_match_table; if (!matches) return 0; @@ -84,7 +83,7 @@ static int macio_device_probe(struct device *dev) macio_dev_get(macio_dev); - match = of_match_device(drv->match_table, &macio_dev->ofdev); + match = of_match_device(drv->driver.of_match_table, &macio_dev->ofdev); if (match) error = drv->probe(macio_dev, match); if (error) diff --git a/drivers/of/platform.c b/drivers/of/platform.c index d58ade170c4..9fd7f7d0a0d 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -22,8 +22,7 @@ extern struct device_attribute of_platform_device_attrs[]; static int of_platform_bus_match(struct device *dev, struct device_driver *drv) { struct of_device *of_dev = to_of_device(dev); - struct of_platform_driver *of_drv = to_of_platform_driver(drv); - const struct of_device_id *matches = of_drv->match_table; + const struct of_device_id *matches = drv->of_match_table; if (!matches) return 0; @@ -46,7 +45,7 @@ static int of_platform_device_probe(struct device *dev) of_dev_get(of_dev); - match = of_match_device(drv->match_table, of_dev); + match = of_match_device(drv->driver.of_match_table, of_dev); if (match) error = drv->probe(of_dev, match); if (error) @@ -391,6 +390,8 @@ int of_register_driver(struct of_platform_driver *drv, struct bus_type *bus) drv->driver.name = drv->name; if (!drv->driver.owner) drv->driver.owner = drv->owner; + if (!drv->driver.of_match_table) + drv->driver.of_match_table = drv->match_table; drv->driver.bus = bus; /* register with core */ diff --git a/include/linux/device.h b/include/linux/device.h index 7a968bdb02e..cd7534cc42a 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -129,6 +129,10 @@ struct device_driver { bool suppress_bind_attrs; /* disables bind/unbind via sysfs */ +#if defined(CONFIG_OF) + const struct of_device_id *of_match_table; +#endif + int (*probe) (struct device *dev); int (*remove) (struct device *dev); void (*shutdown) (struct device *dev); -- cgit v1.2.3-70-g09d2