On 17-Jun-19 5:00 PM, Thierry Reding wrote: > On Thu, May 16, 2019 at 11:23:05AM +0530, Manikanta Maddireddy wrote: >> Add DT binding for "reset-gpios" property which supports GPIO based PERST# >> signal. >> >> Signed-off-by: Manikanta Maddireddy <mmaddireddy@xxxxxxxxxx> >> Reviewed-by: Rob Herring <robh@xxxxxxxxxx> >> Acked-by: Thierry Reding <treding@xxxxxxxxxx> >> --- >> V4: No change >> >> V3: Moved to common pci binding doc >> >> V2: Using standard "reset-gpio" property >> >> Documentation/devicetree/bindings/pci/pci.txt | 3 +++ >> 1 file changed, 3 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/pci/pci.txt b/Documentation/devicetree/bindings/pci/pci.txt >> index c77981c5dd18..79124898aa5b 100644 >> --- a/Documentation/devicetree/bindings/pci/pci.txt >> +++ b/Documentation/devicetree/bindings/pci/pci.txt >> @@ -24,3 +24,6 @@ driver implementation may support the following properties: >> unsupported link speed, for instance, trying to do training for >> unsupported link speed, etc. Must be '4' for gen4, '3' for gen3, '2' >> for gen2, and '1' for gen1. Any other values are invalid. >> +- reset-gpios: >> + If present this property specifies PERST# GPIO. Host drivers can parse the >> + GPIO and apply fundamental reset to endpoints. > As mentioned in patch 27/28, maybe mention here that this is only a > workaround for bad board designs and that it shouldn't be necessary in > the majority of cases. > > Thierry This is common DT binding doc, I cannot add Tegra specific here. reset-gpios is common DT prop, so Rob asked me to add it in common file. Manikanta
