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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-09-24 09:29:24 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-09-24 09:32:53 +0200 |
| commit | b599c89e8c5cf0c37352e0871be240291f8ce922 (patch) | |
| tree | a03ce75b3a3d6d39852bc201b26bcfab412bf55f /Documentation/acpi/enumeration.txt | |
| parent | ee1452d7458451a7508e0663553ce88d63958157 (diff) | |
| parent | 4a10c2ac2f368583138b774ca41fac4207911983 (diff) | |
Merge tag 'v3.12-rc2' into drm-intel-next
Backmerge Linux 3.12-rc2 to prep for a bunch of -next patches:
- Header cleanup in intel_drv.h, both changed in -fixes and my current
-next pile.
- Cursor handling cleanup for -next which depends upon the cursor
handling fix merged into -rc2.
All just trivial conflicts of the "changed adjacent lines" type:
drivers/gpu/drm/i915/i915_gem.c
drivers/gpu/drm/i915/intel_display.c
drivers/gpu/drm/i915/intel_drv.h
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'Documentation/acpi/enumeration.txt')
| -rw-r--r-- | Documentation/acpi/enumeration.txt | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/Documentation/acpi/enumeration.txt b/Documentation/acpi/enumeration.txt index d9be7a97dff..aca4e69121b 100644 --- a/Documentation/acpi/enumeration.txt +++ b/Documentation/acpi/enumeration.txt @@ -207,7 +207,7 @@ passing those. One idea is to return this in _DSM method like: Return (Local0) } -Then the at25 SPI driver can get this configation by calling _DSM on its +Then the at25 SPI driver can get this configuration by calling _DSM on its ACPI handle like: struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; @@ -228,19 +228,9 @@ ACPI handle like: I2C serial bus support ~~~~~~~~~~~~~~~~~~~~~~ The slaves behind I2C bus controller only need to add the ACPI IDs like -with the platform and SPI drivers. However the I2C bus controller driver -needs to call acpi_i2c_register_devices() after it has added the adapter. - -An I2C bus (controller) driver does: - - ... - ret = i2c_add_numbered_adapter(adapter); - if (ret) - /* handle error */ - - of_i2c_register_devices(adapter); - /* Enumerate the slave devices behind this bus via ACPI */ - acpi_i2c_register_devices(adapter); +with the platform and SPI drivers. The I2C core automatically enumerates +any slave devices behind the controller device once the adapter is +registered. Below is an example of how to add ACPI support to the existing mpu3050 input driver: |