From 980066e6d9642fa5854bed8e592b1a30ea885b76 Mon Sep 17 00:00:00 2001 From: Trent Piepho Date: Wed, 22 May 2019 18:43:21 +0000 Subject: dt-bindings: phy: dp83867: Add documentation for disabling clock output 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. Cc: Rob Herring Cc: Mark Rutland Signed-off-by: Trent Piepho Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- include/dt-bindings/net/ti-dp83867.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/dt-bindings') diff --git a/include/dt-bindings/net/ti-dp83867.h b/include/dt-bindings/net/ti-dp83867.h index 7b1656427cbe..192b79439eb7 100644 --- a/include/dt-bindings/net/ti-dp83867.h +++ b/include/dt-bindings/net/ti-dp83867.h @@ -56,4 +56,6 @@ #define DP83867_CLK_O_SEL_CHN_C_TCLK 0xA #define DP83867_CLK_O_SEL_CHN_D_TCLK 0xB #define DP83867_CLK_O_SEL_REF_CLK 0xC +/* Special flag to indicate clock should be off */ +#define DP83867_CLK_O_SEL_OFF 0xFFFFFFFF #endif -- cgit v1.2.3-55-g7522