2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-24 05:04:00 +08:00
linux-next/drivers/of
David Daney 0208626484 of/i2c: Fix request module by alias
If we are registering an i2c device that has a device tree node like
this real-world example:

      rtc@68 {
        compatible = "dallas,ds1337";
        reg = <0x68>;
      };

of_i2c_register_devices() will try to load a module called ds1337.ko.
There is no such module, so it will fail.  If we look in modules.alias
we will find entries like these:

.
.
.
alias i2c:ds1339 rtc_ds1307
alias i2c:ds1338 rtc_ds1307
alias i2c:ds1337 rtc_ds1307
alias i2c:ds1307 rtc_ds1307
alias i2c:ds1374 rtc_ds1374
.
.
.

The module we want is really called rtc_ds1307.ko.  If we request a
module called "i2c:ds1337", the userspace module loader will do the
right thing (unless it is busybox) and load rtc_ds1307.ko.  So we add
the I2C_MODULE_PREFIX to the request_module() string.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-12-24 01:28:54 -07:00
..
address.c of: use __be32 types for big-endian device tree data 2010-10-12 21:58:42 -06:00
base.c of: use __be32 types for big-endian device tree data 2010-10-12 21:58:42 -06:00
device.c of/device: Rework to use common platform_device_alloc() for allocating devices 2010-10-21 11:10:10 -06:00
fdt.c of/flattree: Eliminate need to provide early_init_dt_scan_chosen_arch 2010-10-21 11:10:10 -06:00
gpio.c of/gpio: fix of_gpio includes 2010-07-05 16:14:44 -06:00
irq.c of/irq: remove references to NO_IRQ in drivers/of/platform.c 2010-10-12 21:58:27 -06:00
Kconfig of/promtree: make drivers/of/pdt.c no longer sparc-only 2010-10-10 21:53:30 -06:00
Makefile of/promtree: make drivers/of/pdt.c no longer sparc-only 2010-10-10 21:53:30 -06:00
of_i2c.c of/i2c: Fix request module by alias 2010-12-24 01:28:54 -07:00
of_mdio.c of/irq: Move irq_of_parse_and_map() to common code 2010-06-28 12:41:33 -07:00
of_spi.c of/spi: call of_register_spi_devices() from spi core code 2010-07-30 00:03:59 -06:00
pdt.c of/promtree: add package-to-path support to pdt 2010-10-12 21:58:08 -06:00
platform.c of/device: Rework to use common platform_device_alloc() for allocating devices 2010-10-21 11:10:10 -06:00