Re: [PATCH v2 1/2] PCI: dwc: Perform host_init() before registering msi

On Mon, Aug 23, 2021 at 08:49:57AM -0700, Bjorn Andersson wrote:

On the Qualcomm sc8180x platform the bootloader does something related
to PCI that leaves a pending "msi" interrupt, which with the current
ordering often fires before init has a chance to enable the clocks that
are necessary for the interrupt handler to access the hardware.

Move the host_init() call before the registration of the "msi" interrupt
handler to ensure the host driver has a chance to enable the clocks.

The assignment of the bridge's ops and child_ops is moved along, because
at least the TI Keystone driver overwrites these in its host_init
callback.

Signed-off-by: Bjorn Andersson <redacted>
---

Changes since v1:
- New patch, instead of enabling resources in the qcom driver before jumping to
  dw_pcie_host_init(), per Rob Herring's suggestion.

 .../pci/controller/dwc/pcie-designware-host.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

Reviewed-by: Rob Herring <robh@kernel.org>