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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-08-28 17:01:04 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-08-28 17:01:04 +0200
commit9f57ed095ff82eb4463c2913b22966a8c7d06bc6 (patch)
tree17b9b82d3e1524f9803e88233e9902d27237299f /Documentation
parent981b4677364dee053763a4c542ed9eb6d94c246c (diff)
parent4243c408f7402e254454d4770dfc1437545eba1b (diff)
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Merge tag 'extcon-next-for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next
Chanwoo writes: Update extcon for 4.14 Detailed description for this pull request: 1. Add new 'extcon-usbc-cros-ec.c' driver - ChromeOS Embedded Controller extcon driver supports the detection of the Display Port (EXTCON_DISP_DP) through USB C-type and contol it. 2. Update extcon core - Modify the description for both functions and structures in order to improve the readability and give the more correct guide about the role of functions because there are different explanation even if the same arguments. - Keep the indentation with tab instead of space - Remove the following deprecated extcon API. The deprecated API are exchanged on all of linux tree. : extcon_get_cable_state_() -> extcon_get_state() : extcon_set_cable_state_() -> extcon_set_state_sync() 3. Include the two immutable branch as following: - ib-extcon-mfd-4.14 for the 'extcon-ubsc-cros-ec.c' driver because the patches of 'extcon-ubsc-cros-ec.c' touch the MFD directory. - ib-extcon-usb-phy-4.14 for removing the deprecated extcon API because the usb/phy driver usese the deprecated extcon API. So, this immutable branch alters the extcon API and then remove them from extcon. 4. Fix minor issue of extcon driver - Fix the MHL detection on extcon-max77693.c - Convert to using %pOF instead of full_name on extcon.c - Add 'const' kerywod for acpi_device_id on extcon-intel-int3496.c
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/extcon/extcon-usbc-cros-ec.txt24
1 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/extcon/extcon-usbc-cros-ec.txt b/Documentation/devicetree/bindings/extcon/extcon-usbc-cros-ec.txt
new file mode 100644
index 000000000000..8e8625c00dfa
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/extcon-usbc-cros-ec.txt
@@ -0,0 +1,24 @@
+ChromeOS EC USB Type-C cable and accessories detection
+
+On ChromeOS systems with USB Type C ports, the ChromeOS Embedded Controller is
+able to detect the state of external accessories such as display adapters
+or USB devices when said accessories are attached or detached.
+
+The node for this device must be under a cros-ec node like google,cros-ec-spi
+or google,cros-ec-i2c.
+
+Required properties:
+- compatible: Should be "google,extcon-usbc-cros-ec".
+- google,usb-port-id: Specifies the USB port ID to use.
+
+Example:
+ cros-ec@0 {
+ compatible = "google,cros-ec-i2c";
+
+ ...
+
+ extcon {
+ compatible = "google,extcon-usbc-cros-ec";
+ google,usb-port-id = <0>;
+ };
+ }