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authorGrygorii Strashko <grygorii.strashko@ti.com>2019-11-18 23:04:42 +0200
committerJoe Hershberger <joe.hershberger@ni.com>2019-12-09 09:47:42 -0600
commitfb6038390ebe8717a66dd3a4e37bffb96e50c07a (patch)
tree853550bf224f0297f47f012c1f5fde04247d817a /doc/device-tree-bindings
parentee622f03ccb8108482c58b15e0126f5b97a2b062 (diff)
dt-bindings: phy: dp83867: Add documentation for disabling clock output
Based on commit 980066e6d964 ("dt-bindings: phy: dp83867: Add documentation for disabling clock output") of mainline linux kernel. The clock output is generally only used for testing and development and not used to daisy-chain PHYs. It's just a source of RF noise afterward. Add a mux value for "off". I've added it as another enumeration to the output property. In the actual PHY, the mux and the output enable are independently controllable. However, it doesn't seem useful to be able to describe the mux setting when the output is disabled. Document that PHY's default setting will be left as is if the property is omitted. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'doc/device-tree-bindings')
-rw-r--r--doc/device-tree-bindings/net/ti,dp83867.txt6
1 files changed, 4 insertions, 2 deletions
diff --git a/doc/device-tree-bindings/net/ti,dp83867.txt b/doc/device-tree-bindings/net/ti,dp83867.txt
index 034146f5f8..268220964a 100644
--- a/doc/device-tree-bindings/net/ti,dp83867.txt
+++ b/doc/device-tree-bindings/net/ti,dp83867.txt
@@ -12,8 +12,10 @@ Required properties:
compensate for the board being designed with the lanes swapped.
- enet-phy-no-lane-swap - Indicates that PHY will disable swap of the
TX/RX lanes.
- - ti,clk-output-sel - Clock output select - see dt-bindings/net/ti-dp83867.h
- for applicable values
+ - ti,clk-output-sel - Muxing option for CLK_OUT pin. See dt-bindings/net/ti-dp83867.h
+ for applicable values. The CLK_OUT pin can also
+ be disabled by this property. When omitted, the
+ PHY's default will be left as is.
Default child nodes are standard Ethernet PHY device
nodes as described in doc/devicetree/bindings/net/ethernet.txt