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| author | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-06-28 09:20:37 -0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-07-03 13:00:26 +0200 |
| commit | 5d8cbf7176a427cd904eaa6efdaf6960d717b0de (patch) | |
| tree | 8e2d09552554626373520e270972211306222e41 /Documentation/extcon | |
| parent | 9fe51603d953419b8da74f455269eca8e6b84228 (diff) | |
| download | lwn-5d8cbf7176a427cd904eaa6efdaf6960d717b0de.tar.gz lwn-5d8cbf7176a427cd904eaa6efdaf6960d717b0de.zip | |
docs: extcon: convert it to ReST and move to ACPI dir
The intel-int3496.txt file is a documentation for an ACPI driver.
There's no reason to keep it on a separate directory.
So, instead of keeping it on some random location, move it
to a sub-directory inside the ACPI documentation dir,
renaming it to .rst.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'Documentation/extcon')
| -rw-r--r-- | Documentation/extcon/intel-int3496.txt | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/Documentation/extcon/intel-int3496.txt b/Documentation/extcon/intel-int3496.txt deleted file mode 100644 index 8155dbc7fad3..000000000000 --- a/Documentation/extcon/intel-int3496.txt +++ /dev/null @@ -1,27 +0,0 @@ -Intel INT3496 ACPI device extcon driver documentation ------------------------------------------------------ - -The Intel INT3496 ACPI device extcon driver is a driver for ACPI -devices with an acpi-id of INT3496, such as found for example on -Intel Baytrail and Cherrytrail tablets. - -This ACPI device describes how the OS can read the id-pin of the devices' -USB-otg port, as well as how it optionally can enable Vbus output on the -otg port and how it can optionally control the muxing of the data pins -between an USB host and an USB peripheral controller. - -The ACPI devices exposes this functionality by returning an array with up -to 3 gpio descriptors from its ACPI _CRS (Current Resource Settings) call: - -Index 0: The input gpio for the id-pin, this is always present and valid -Index 1: The output gpio for enabling Vbus output from the device to the otg - port, write 1 to enable the Vbus output (this gpio descriptor may - be absent or invalid) -Index 2: The output gpio for muxing of the data pins between the USB host and - the USB peripheral controller, write 1 to mux to the peripheral - controller - -There is a mapping between indices and GPIO connection IDs as follows - id index 0 - vbus index 1 - mux index 2 |