On 18-12-21, 17:02, Dmitry Baryshkov wrote: > After comparing upstream and downstream Qualcomm PCIe drivers, change > the way the driver works with the pipe_clk_src multiplexing. > > The clock should be switched to using ref_clk (TCXO) as a parent before > turning the PCIE_x_GDSC power domain off and can be switched to using > PHY's pipe_clk after this power domain is turned on. > > Downstream driver uses regulators for the GDSC, so current approach also > (incorrectly) uses them. However upstream driver uses power-domain and > so GDSC is maintained using pm_runtime_foo() calls. Change order of > operations to implement these requirements. Reviewed-by: Vinod Koul <vkoul@xxxxxxxxxx> > > ---------------------------------------------------------------- > Dmitry Baryshkov (3): > PCI: qcom: Balance pm_runtime_foo() calls > PCI: qcom: Fix pipe_clk_src reparenting > PCI: qcom: Remove unnecessary pipe_clk handling > > drivers/pci/controller/dwc/pcie-qcom.c | 122 +++++++-------------------------- > 1 file changed, 25 insertions(+), 97 deletions(-) -- ~Vinod
