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usb: phy: Improve Kconfig help for CONFIG_USB_PHY 

The previous text confused users by not describing the very common
(e.g. x86 PC) sitations where no PHY driver is necessary.

Signed-off-by: George Spelvin <linux@horizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
George Spelvin 2013-06-17 01:45:50 -04:00 committed by Greg Kroah-Hartman
parent 7d13205581
commit 035978beaf
1 changed files with 10 additions and 4 deletions
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14
drivers/usb/phy/Kconfig
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@ -4,11 +4,17 @@
menuconfig USB_PHY
bool "USB Physical Layer drivers"
help
USB controllers (those which are host, device or DRD) need a
device to handle the physical layer signalling, commonly called
a PHY.
Most USB controllers have the physical layer signalling part
(commonly called a PHY) built in. However, dual-role devices
(a.k.a. USB on-the-go) which support being USB master or slave
with the same connector often use an external PHY.
The following drivers add support for such PHY devices.
The drivers in this submenu add support for such PHY devices.
They are not needed for standard master-only (or the vast
majority of slave-only) USB interfaces.
If you're not sure if this applies to you, it probably doesn't;
say N here.
if USB_PHY