Re: [PATCH v14 0/17] PCI: imx6: refine codes and add the error propagation

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On Mon, Jul 11, 2022 at 05:29:59PM -0500, Bjorn Helgaas wrote:
> On Fri, Jul 01, 2022 at 11:25:18AM +0800, Richard Zhu wrote:
> > ...

> > Bjorn Helgaas (5):
> >   PCI: imx6: Move imx6_pcie_grp_offset(), imx6_pcie_configure_type()
> >     earlier
> >   PCI: imx6: Move PHY management functions together
> >   PCI: imx6: Move imx6_pcie_enable_ref_clk() earlier
> >   PCI: imx6: Factor out ref clock disable to match enable
> >   PCI: imx6: Disable clocks in reverse order of enable
> > 
> > Richard Zhu (12):
> >   PCI: imx6: Move imx6_pcie_clk_disable() earlier
> >   PCI: imx6: Collect clock enables in imx6_pcie_clk_enable()
> >   PCI: imx6: Propagate .host_init() errors to caller
> >   PCI: imx6: Disable i.MX6QDL clock when disabling ref clocks
> >   PCI: imx6: Call host init function directly in resume
> >   PCI: imx6: Turn off regulator when system is in suspend mode
> >   PCI: imx6: Move regulator enable out of
> >     imx6_pcie_deassert_core_reset()
> >   PCI: imx6: Mark the link down as non-fatal error
> >   PCI: imx6: Reduce resume time by only starting link if it was up
> >     before suspend
> >   PCI: imx6: Do not hide phy driver callbacks and refine the error
> >     handling
> >   PCI: imx6: Reformat suspend callback to keep symmetric with resume
> >   PCI: imx6: Move the imx6_pcie_ltssm_disable() earlier
> > 
> > drivers/pci/controller/dwc/pci-imx6.c | 661 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-----------------------------------------------------------------------------------------------
> > 1 file changed, 358 insertions(+), 303 deletions(-)
> 
> Applied to pci/ctrl/imx6 for v5.20, thanks a lot for all your work
> here!

I updated the branch with Lucas' acks and with the minor
imx6_pcie_start_link() return value check he suggested.

I did not do anything about the missing IMX8MQ case in
imx6_pcie_ltssm_disable() or the PHY init or regulator or shutdown
issues.  If you want changes there, please make them starting with the
pci/ctrl/imx6 branch and I can just replace it:

  https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git/commit/?h=pci/ctrl/imx6&id=7d652ce95e70

Bjorn



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