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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>
This commit is contained in:
Mauro Carvalho Chehab 2019-06-28 09:20:37 -03:00 committed by Rafael J. Wysocki
parent 9fe51603d9
commit 5d8cbf7176
3 changed files with 14 additions and 7 deletions
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14
Documentation/extcon/intel-int3496.txt → Documentation/firmware-guide/acpi/extcon-intel-int3496.rst
View File

@ -1,5 +1,6 @@
=====================================================
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
@ -13,15 +14,20 @@ 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
======= =====================================================================
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
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
======= =======

1
Documentation/firmware-guide/acpi/index.rst
View File

@ -24,3 +24,4 @@ ACPI Support
acpi-lid
lpit
video_extension
extcon-intel-int3496

6
MAINTAINERS
View File

@ -321,7 +321,7 @@ F: drivers/pnp/pnpacpi/
F: include/linux/acpi.h
F: include/linux/fwnode.h
F: include/acpi/
F: Documentation/acpi/
F: Documentation/firmware-guide/acpi/
F: Documentation/ABI/testing/sysfs-bus-acpi
F: Documentation/ABI/testing/configfs-acpi
F: drivers/pci/*acpi*
@ -4862,7 +4862,7 @@ S: Maintained
F: Documentation/
F: scripts/kernel-doc
X: Documentation/ABI/
X: Documentation/acpi/
X: Documentation/firmware-guide/acpi/
X: Documentation/devicetree/
X: Documentation/i2c/
X: Documentation/media/
@ -6032,7 +6032,7 @@ S: Maintained
F: drivers/extcon/
F: include/linux/extcon/
F: include/linux/extcon.h
F: Documentation/extcon/
F: Documentation/firmware-guide/acpi/extcon-intel-int3496.rst
F: Documentation/devicetree/bindings/extcon/
EXYNOS DP DRIVER