Re: [PATCH v3 0/3] Add 16GT/s equalization and margining settings
From: Niklas Cassel
Date: Fri Apr 19 2024 - 03:36:31 EST
On Thu, Apr 18, 2024 at 05:09:33PM -0700, Shashank Babu Chinta Venkata wrote:
> Add 16GT/s specific equalization and rx lane margining settings. These
> settings are inline with respective PHY settings for 16GT/s
> operation.
>
> In addition, current QCOM EP and RC drivers do not share common
> codebase which would result in code duplication. Hence, adding
> common files for code reusability among RC and EP drivers.
>
> v2 -> v3:
> - Replaced FIELD_GET/FIELD_PREP macros for bit operations.
> - Renamed cmn to common.
> - Avoided unnecessary argument validations.
> - Addressed review comments from Konrad and Mani.
>
> v1 -> v2:
> - Capitilized commit message to be inline with history
> - Dropped stubs from header file.
> - Moved Designware specific register offsets and masks to
> pcie-designware.h header file.
> - Applied settings based on bus data rate rather than link generation.
> - Addressed review comments from Bjorn and Frank.
>
> Shashank Babu Chinta Venkata (3):
> PCI: qcom: Refactor common code
> PCI: qcom: Add equalization settings for 16GT/s
> PCI: qcom: Add rx margining settings for 16GT/s
>
> drivers/pci/controller/dwc/Kconfig | 5 +
> drivers/pci/controller/dwc/Makefile | 1 +
> drivers/pci/controller/dwc/pcie-designware.h | 30 ++++
> drivers/pci/controller/dwc/pcie-qcom-common.c | 129 ++++++++++++++++++
> drivers/pci/controller/dwc/pcie-qcom-common.h | 14 ++
> drivers/pci/controller/dwc/pcie-qcom-ep.c | 44 ++----
> drivers/pci/controller/dwc/pcie-qcom.c | 72 ++--------
> 7 files changed, 201 insertions(+), 94 deletions(-)
> create mode 100644 drivers/pci/controller/dwc/pcie-qcom-common.c
> create mode 100644 drivers/pci/controller/dwc/pcie-qcom-common.h
>
> --
> 2.43.2
>
FWIW: I think the subject of the cover-letter should have been prefixed with:
"PCI: qcom: "
Kind regards,
Niklas