On Tue, Feb 28, 2023 at 10:36 PM Sajid Dalvi <sdalvi@xxxxxxxxxx> wrote: > > Thanks for your review Jingoo. > Sajid > > On Tue, Feb 28, 2023 at 4:04 PM Han Jingoo <jingoohan1@xxxxxxxxx> wrote: > > > > On Mon, Feb 27, 2023, Sajid Dalvi <sdalvi@xxxxxxxxxx> wrote: > > > > > > In dw_pcie_host_init() regardless of whether the link has been started > > > or not, the code waits for the link to come up. Even in cases where > > > start_link() is not defined the code ends up spinning in a loop for 1 > > > second. Since in some systems dw_pcie_host_init() gets called during > > > probe, this one second loop for each pcie interface instance ends up > > > extending the boot time. > > > > > > Call trace when start_link() is not defined: > > > dw_pcie_wait_for_link << spins in a loop for 1 second > > > dw_pcie_host_init > > > > > > Signed-off-by: Sajid Dalvi <sdalvi@xxxxxxxxxx> > > > > (CC'ed Krzysztof Kozlowski) > > > > Acked-by: Jingoo Han <jingoohan1@xxxxxxxxx> > > > > It looks good to me. I also checked the previous thread. > > I agree with Krzysztof's opinion that we should include > > only hardware-related features into DT. > > Thank you. > > > > Best regards, > > Jingoo Han > > > > > --- > > > drivers/pci/controller/dwc/pcie-designware-host.c | 6 +++--- > > > 1 file changed, 3 insertions(+), 3 deletions(-) > > > > > > diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c > > > index 9952057c8819..9709f69f173e 100644 > > > --- a/drivers/pci/controller/dwc/pcie-designware-host.c > > > +++ b/drivers/pci/controller/dwc/pcie-designware-host.c > > > @@ -489,10 +489,10 @@ int dw_pcie_host_init(struct dw_pcie_rp *pp) > > > ret = dw_pcie_start_link(pci); > > > if (ret) > > > goto err_remove_edma; > > > - } > > > > > > - /* Ignore errors, the link may come up later */ > > > - dw_pcie_wait_for_link(pci); > > > + /* Ignore errors, the link may come up later */ > > > + dw_pcie_wait_for_link(pci); > > > + } > > > > > > bridge->sysdata = pp; > > > > > > -- > > > 2.39.2.722.g9855ee24e9-goog > > > @bhelgaas Can this be picked up in your tree: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git/ Thanks Sajid
