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* [PATCH v3 0/3] Add Equalization Settings for 8.0 GT/s and Add PCIe Lane Equalization Preset Properties for 8.0 GT/s and 16.0 GT/s
@ 2025-06-25  8:57 Ziyue Zhang
  2025-06-25  8:57 ` [PATCH v3 1/3] PCI: qcom: Add equalization settings for 8.0 GT/s Ziyue Zhang
                   ` (2 more replies)
  0 siblings, 3 replies; 7+ messages in thread
From: Ziyue Zhang @ 2025-06-25  8:57 UTC (permalink / raw)
  To: andersson, konradybcio, robh, krzk+dt, conor+dt, jingoohan1, mani,
	lpieralisi, kwilczynski, bhelgaas, johan+linaro, vkoul, kishon,
	neil.armstrong, abel.vesa, kw
  Cc: linux-arm-msm, devicetree, linux-kernel, linux-pci, linux-phy,
	qiang.yu, quic_krichai, quic_vbadigan, Ziyue Zhang

This series adds add equalization settings for 8.0 GT/s, and add PCIe lane equalization
preset properties for 8.0 GT/s and 16.0 GT/s for sa8775p ride platform, which fix AER
errors.

While equalization settings for 16 GT/s have already been set, this update adds the
required equalization settings for PCIe operating at 8.0 GT/s, including the
configuration of shadow registers, ensuring optimal performance and stability.

The DT change for sa8775p add PCIe lane equalization preset properties for 8 GT/s
and 16 GT/s data rates used in lane equalization procedure.

Signed-off-by: Ziyue Zhang <quic_ziyuzhan@quicinc.com>

Changes in v2:
- Update code in pcie-qcom-common.c make it easier to read. (Neil)
- Fix the compile error.
- Link to v1: https://lore.kernel.org/all/20250604091946.1890602-1-quic_ziyuzhan@quicinc.com

Changes in v3:
- Delte TODO tag and warn print in pcie-qcom-common.c. (Bjorn)
- Refined the commit message for better readability. (Bjorn)
- Link to v2: https://lore.kernel.org/all/20250611100319.464803-1-quic_ziyuzhan@quicinc.com/

Ziyue Zhang (3):
  PCI: qcom: Add equalization settings for 8.0 GT/s
  PCI: qcom: fix macro typo for CURSOR
  arm64: dts: qcom: sa8775p: Add PCIe lane equalization preset
    properties

 arch/arm64/boot/dts/qcom/sa8775p.dtsi         |  6 ++
 drivers/pci/controller/dwc/pcie-designware.h  |  5 +-
 drivers/pci/controller/dwc/pcie-qcom-common.c | 55 +++++++++++--------
 drivers/pci/controller/dwc/pcie-qcom-common.h |  2 +-
 drivers/pci/controller/dwc/pcie-qcom-ep.c     |  6 +-
 drivers/pci/controller/dwc/pcie-qcom.c        |  6 +-
 6 files changed, 46 insertions(+), 34 deletions(-)


base-commit: e04c78d86a9699d136910cfc0bdcf01087e3267e
-- 
2.34.1


^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2025-06-30  7:19 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-06-25  8:57 [PATCH v3 0/3] Add Equalization Settings for 8.0 GT/s and Add PCIe Lane Equalization Preset Properties for 8.0 GT/s and 16.0 GT/s Ziyue Zhang
2025-06-25  8:57 ` [PATCH v3 1/3] PCI: qcom: Add equalization settings for 8.0 GT/s Ziyue Zhang
2025-06-25 15:58   ` Manivannan Sadhasivam
2025-06-30  7:19     ` Ziyue Zhang
2025-06-25 19:15   ` kernel test robot
2025-06-25  8:58 ` [PATCH v3 2/3] PCI: qcom: fix macro typo for CURSOR Ziyue Zhang
2025-06-25  8:58 ` [PATCH v3 3/3] arm64: dts: qcom: sa8775p: Add PCIe lane equalization preset properties Ziyue Zhang

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