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| author | Shashank Babu Chinta Venkata <quic_schintav@quicinc.com> | 2024-09-11 20:56:29 +0530 |
|---|---|---|
| committer | Krzysztof Wilczyński <kwilczynski@kernel.org> | 2024-09-13 14:44:59 +0000 |
| commit | d14bc28af34fb8b599c1cc4ce24a2833e60ade8f (patch) | |
| tree | 78543645ae3f551c8e39fad8b9ea9e74fc67947b /drivers/pci/controller/dwc/pcie-qcom-common.h | |
| parent | d45736b5984954da71292d858f277bac9c70cd2e (diff) | |
| download | lwn-d14bc28af34fb8b599c1cc4ce24a2833e60ade8f.tar.gz lwn-d14bc28af34fb8b599c1cc4ce24a2833e60ade8f.zip | |
PCI: qcom: Add RX lane margining settings for 16.0 GT/s
Add RX lane margining settings for 16.0 GT/s (GEN 4) data rate.
These settings improve link stability while operating at high date
rates and helps to improve signal quality.
Link: https://lore.kernel.org/linux-pci/20240911-pci-qcom-gen4-stability-v7-4-743f5c1fd027@linaro.org
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Shashank Babu Chinta Venkata <quic_schintav@quicinc.com>
[mani: dropped the code refactoring and minor changes]
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
[kwilczynski: commit log]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Diffstat (limited to 'drivers/pci/controller/dwc/pcie-qcom-common.h')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-qcom-common.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pci/controller/dwc/pcie-qcom-common.h b/drivers/pci/controller/dwc/pcie-qcom-common.h index 536387e02e29..7d88d29e4766 100644 --- a/drivers/pci/controller/dwc/pcie-qcom-common.h +++ b/drivers/pci/controller/dwc/pcie-qcom-common.h @@ -9,5 +9,6 @@ struct dw_pcie; void qcom_pcie_common_set_16gt_equalization(struct dw_pcie *pci); +void qcom_pcie_common_set_16gt_lane_margining(struct dw_pcie *pci); #endif |