| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <f042abfc-25c8-2684-3fec-fea17bab8087@linaro.org>
Date: Tue, 17 May 2022 08:23:02 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Krishna Kurapati <quic_kriskura@...cinc.com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Andy Gross <agross@...nel.org>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Stephen Boyd <swboyd@...omium.org>,
Doug Anderson <dianders@...omium.org>,
Matthias Kaehlcke <mka@...omium.org>,
Wesley Cheng <quic_wcheng@...cinc.com>
Cc: devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-phy@...ts.infradead.org, quic_pkondeti@...cinc.com,
quic_ppratap@...cinc.com, quic_vpulyala@...cinc.com,
Sandeep Maheswaram <quic_c_sanm@...cinc.com>
Subject: Re: [v5 1/3] dt-bindings: phy: qcom,usb-snps-femto-v2: Add phy
override params bindings
On 16/05/2022 19:50, Krishna Kurapati wrote:
> From: Sandeep Maheswaram <quic_c_sanm@...cinc.com>
>
> Add device tree bindings for SNPS phy tuning parameters.
>
> Signed-off-by: Sandeep Maheswaram <quic_c_sanm@...cinc.com>
> Signed-off-by: Krishna Kurapati <quic_kriskura@...cinc.com>
> ---
> .../bindings/phy/qcom,usb-snps-femto-v2.yaml | 105 +++++++++++++++++++++
> 1 file changed, 105 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/phy/qcom,usb-snps-femto-v2.yaml b/Documentation/devicetree/bindings/phy/qcom,usb-snps-femto-v2.yaml
> index 1ce251d..0a78db7 100644
> --- a/Documentation/devicetree/bindings/phy/qcom,usb-snps-femto-v2.yaml
> +++ b/Documentation/devicetree/bindings/phy/qcom,usb-snps-femto-v2.yaml
> @@ -53,6 +53,111 @@ properties:
> vdda33-supply:
> description: phandle to the regulator 3.3V supply node.
>
> + qcom,hs-disconnect-bp:
> + $ref: /schemas/types.yaml#/definitions/int32
No need for ref for standard units.
> + description:
> + This adjusts the voltage level for the threshold used to
> + detect a disconnect event at the host. Possible values are.
> + The values defined are in multiples of basis points (1bp = 0.01%).
> + The hardware accepts only discrete values. The value closest to the
> + provided input will be chosen as the override value for this param.
> + minimum: -272
> + maximum: 2156
> +
> + qcom,squelch-detector-bp:
> + $ref: /schemas/types.yaml#/definitions/int32
> + description:
> + This adjusts the voltage level for the threshold used to
> + detect valid high-speed data.
> + The values defined are in multiples of basis points (1bp = 0.01%).
> + The hardware accepts only discrete values. The value closest to the
> + provided input will be chosen as the override value for this param.
> + minimum: -2090
> + maximum: 1590
> +
> + qcom,hs-amplitude-bp:
> + $ref: /schemas/types.yaml#/definitions/int32
> + description:
> + This adjusts the high-speed DC level voltage.
> + The values defined are in multiples of basis points (1bp = 0.01%).
> + The hardware accepts only discrete values. The value closest to the
> + provided input will be chosen as the override value for this param.
> + minimum: -660
> + maximum: 2670
> +
> + qcom,pre-emphasis-duration-bp:
> + $ref: /schemas/types.yaml#/definitions/int32
> + description:
> + This signal controls the duration for which the
> + HS pre-emphasis current is sourced onto DP<#> or DM<#>.
> + The HS Transmitter pre-emphasis duration is defined in terms of
> + unit amounts. One unit of pre-emphasis duration is approximately
> + 650 ps and is defined as 1X pre-emphasis duration.
> + The values defined are in multiples of basis points (1bp = 0.01%).
> + The hardware accepts only discrete values. The value closest to the
> + provided input will be chosen as the override value for this param.
> + minimum: 10000
> + maximum: 20000
> +
> + qcom,pre-emphasis-amplitude-bp:
> + $ref: /schemas/types.yaml#/definitions/int32
> + description:
> + This signal controls the amount of current sourced to
> + DP<#> and DM<#> after a J-to-K or K-to-J transition.
> + The HS Transmitter pre-emphasis current is defined in terms of unit
> + amounts. One unit amount is approximately 2 mA and is defined as
> + 1X pre-emphasis current.
> + The values defined are in multiples of basis points (1bp = 0.01%).
> + The hardware accepts only discrete values. The value closest to the
> + provided input will be chosen as the override value for this param.
> + minimum: 10000
> + maximum: 40000
> +
> + qcom,hs-rise-fall-time-bp:
> + $ref: /schemas/types.yaml#/definitions/int32
> + description:
> + This adjusts the rise/fall times of the high-speed waveform.
> + The values defined are in multiples of basis points (1bp = 0.01%).
> + The hardware accepts only discrete values. The value closest to the
> + provided input will be chosen as the override value for this param.
> + minimim: -4100
> + maximum: 5430
> +
> + qcom,hs-crossover-voltage-microvolt:
> + $ref: /schemas/types.yaml#/definitions/int32
> + description:
> + This adjusts the voltage at which the DP<#> and DM<#>
> + signals cross while transmitting in HS mode.
> + The values defined are in milli volts. The hardware accepts only
> + discrete values. The value closest to the provided input will be
> + chosen as the override value for this param.
> + minimum: -31000
> + maximum: 28000
> +
> + qcom,hs-output-impedance-micro-ohm:
Please use standard unit suffixes, so micro-ohms.
Best regards,
Krzysztof
Powered by blists - more mailing lists