On 27-09-22, 12:22, Dmitry Baryshkov wrote: > Programming of QMP PCIe PHYs slightly differs between RC and EP modes. > > Currently both qcom and qcom-ep PCIe controllers setup the PHY in the > default mode, making it impossible to select at runtime whether the PHY > should be running in RC or in EP modes. Usually this is not an issue, > since for most devices only the RC mode is used. Some devices (SDX55) > currently support only the EP mode without supporting the RC mode (at > this moment). > > Nevertheless some of the Qualcomm platforms (e.g. the aforementioned > SDX55) would still benefit from being able to switch between RC and EP > depending on the driver being used. While it is possible to use > different compat strings for the PHY depending on the mode, it seems > like an incorrect approach, since the PHY doesn't differ between > usecases. It's the PCIe controller, who should decide how to configure > the PHY. > > This patch series implements the ability to select between RC and EP > modes, by allowing the PCIe QMP PHY driver to switch between > programming tables. > > This patchseries depends on the header from the pre-6.1 phy/next. Thus > after the 6.1 the PCIe patches can be applied independently of the PHY > part. Applied, thanks -- ~Vinod
