staging: mt7621-pci: bindings: update doc accordly to last changes

Properly update bindings documentation with added 'reset-gpios'
property. Delete also 'perst-gpio' which is not being used anymore.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20200313200913.24321-5-sergio.paracuellos@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/mt7621-pci/mediatek,mt7621-pci.txt b/drivers/staging/mt7621-pci/mediatek,mt7621-pci.txt
index 604ec81..327a682 100644 (file)
--- a/drivers/staging/mt7621-pci/mediatek,mt7621-pci.txt
+++ b/drivers/staging/mt7621-pci/mediatek,mt7621-pci.txt
@@ -6,7 +6,6 @@ Required properties:
 - reg: Base addresses and lengths of the PCIe subsys and root ports.
 - bus-range: Range of bus numbers associated with this controller.
 - #address-cells: Address representation for root ports (must be 3)
-- perst-gpio: PCIe reset signal line.
 - pinctrl-names : The pin control state names.
 - pinctrl-0: The "default" pinctrl state.
 - #size-cells: Size representation for root ports (must be 2)
@@ -24,6 +23,7 @@ Required properties:
   See ../clocks/clock-bindings.txt for details.
 - clock-names: Must be "pcie0", "pcie1", "pcieN"... based on the number of
   root ports.
+- reset-gpios: GPIO specs for the reset pins.
 
 In addition, the device tree node must have sub-nodes describing each PCIe port
 interface, having the following mandatory properties:
@@ -49,7 +49,6 @@ Example for MT7621:
                #address-cells = <3>;
                #size-cells = <2>;
 
-               perst-gpio = <&gpio 19 GPIO_ACTIVE_HIGH>;
                pinctrl-names = "default";
                pinctrl-0 = <&pcie_pins>;
 
@@ -74,6 +73,10 @@ Example for MT7621:
                clocks = <&clkctrl 24 &clkctrl 25 &clkctrl 26>;
                clock-names = "pcie0", "pcie1", "pcie2";
 
+               reset-gpios = <&gpio 19 GPIO_ACTIVE_LOW>,
+                               <&gpio 8 GPIO_ACTIVE_LOW>,
+                               <&gpio 7 GPIO_ACTIVE_LOW>;
+
                pcie@0,0 {
                        reg = <0x0000 0 0 0 0>;
                        #address-cells = <3>;