On 07/10/2024 15:55, Joy Chakraborty wrote: > PIPE4 spec defines an 18bit de-emphasis setting to be passed from > controller to the PHY. > TxDeemph[17:0] is split as [5:0] C-1, [11:6] C0, [17:12] C+1 for 3 tap > filter used for USB Gen2(10GT/s). > > Signed-off-by: Joy Chakraborty <joychakr@xxxxxxxxxx> > --- > Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml > index 1cd0ca90127d..a1f1bbcf1467 100644 > --- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml > +++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml > @@ -190,6 +190,18 @@ properties: > - 1 # -3.5dB de-emphasis > - 2 # No de-emphasis > > + snps,tx_gen2_de_emphasis_quirk: No underscores. > + description: When set core will set Tx de-emphasis for USB Gen2 And why it cannot be implied by compatible? > + type: boolean > + Best regards, Krzysztof
