Re: (subset) [PATCH v9 0/5] PCI: dwc: Add support for configuring lane equalization presets

[Bjorn Andersson]

On Fri, 28 Mar 2025 15:58:28 +0530, Krishna Chaitanya Chundru wrote:
> PCIe equalization presets are predefined settings used to optimize
> signal integrity by compensating for signal loss and distortion in
> high-speed data transmission.
> 
> As per PCIe spec 6.0.1 revision section 8.3.3.3 & 4.2.4 for data rates
> of 8.0 GT/s, 16.0 GT/s, 32.0 GT/s, and 64.0 GT/s, there is a way to
> configure lane equalization presets for each lane to enhance the PCIe
> link reliability. Each preset value represents a different combination
> of pre-shoot and de-emphasis values. For each data rate, different
> registers are defined: for 8.0 GT/s, registers are defined in section
> 7.7.3.4; for 16.0 GT/s, in section 7.7.5.9, etc. The 8.0 GT/s rate has
> an extra receiver preset hint, requiring 16 bits per lane, while the
> remaining data rates use 8 bits per lane.
> 
> [...]

Applied, thanks!

[1/5] arm64: dts: qcom: x1e80100: Add PCIe lane equalization preset properties
      commit: 435c3642a6a82c774f2897d72e6ed794a1dbaba1

Best regards,
-- 
Bjorn Andersson <andersson@xxxxxxxxxx>