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dt-bindings: usb: max3421: Interrupt-parent is optional 

Documentation modification, now interrupt-parent is an optional
property. Also fix few typos.

Signed-off-by: Jules Maselbas <jules.maselbas@grenoble-inp.org>
Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jules Maselbas 2017-10-31 11:32:57 +01:00 committed by Greg Kroah-Hartman
parent 892f6ebc53
commit 9b796ffcd1
1 changed files with 5 additions and 3 deletions
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8
Documentation/devicetree/bindings/usb/maxim,max3421.txt
View File

@ -1,17 +1,19 @@
Maxim Integrated SPI-based USB 2.0 host controller MAX3421E Maxim Integrated SPI-based USB 2.0 host controller MAX3421E
Required properties: Required properties:
- compatible: "maxim,max3421" - compatible: Should be "maxim,max3421"
- spi-max-frequency: maximum frequency for this device must not exceed 26 MHz. - spi-max-frequency: maximum frequency for this device must not exceed 26 MHz.
- reg: chip select number to which this device is connected. - reg: chip select number to which this device is connected.
- maxim,vbus-en-pin: <GPOUTx ACTIVE_LEVEL> - maxim,vbus-en-pin: <GPOUTx ACTIVE_LEVEL>
GPOUTx is the number (1-8) of the GPOUT pin of MAX3421E to drive Vbus. GPOUTx is the number (1-8) of the GPOUT pin of MAX3421E to drive Vbus.
ACTIVE_LEVEL is 0 or 1. ACTIVE_LEVEL is 0 or 1.
- interrupt-parent: the phandle of the associated interrupt controller. - interrupts: the interrupt line description for the interrupt controller.
- interrupts: the interuption line description for the interrupt controller.
The driver configures MAX3421E for active low level triggered interrupts, The driver configures MAX3421E for active low level triggered interrupts,
configure your interrupt line accordingly. configure your interrupt line accordingly.
Optional property:
- interrupt-parent: the phandle to the associated interrupt controller.
Example: Example:
usb@0 { usb@0 {