[PATCH 0/4] PCI: qcom: Align PHY init sequence with HPG

[Qiang Yu]

HPG requires the controller/PHY GDSCs to be powered up and all
clocks enabled, then the controller's reset and the PHY's reset
toggled together as one group, with PARF_DEVICE_TYPE set right
after. This series adds the callbacks needed on both sides to
realize that sequence: a phy_reset() call the controller makes as
part of its own reset, and matching phy_ops::init/phy_ops::reset on
the PHY side.

Patches 1-2 move phy_init()/phy_exit() into the RC and EP
controllers' own init/deinit paths, add a phy_reset() call grouped
with each controller's own reset, and move the PARF_DEVICE_TYPE
write to right after that reset group.

Patches 3-4 update the two PHY drivers these controllers can use
(phy-qcom-qmp-pcie[-multiphy].c) to implement phy_ops::init/reset,
matching phy_ops::power_on to what's left once
phy_ops::init/phy_ops::reset are pulled out.

phy_init()/phy_reset() are no-ops against a phy_ops without
phy_ops::init/phy_ops::reset, so patches 1-2 don't change behavior
on any platform by themselves; patches 3-4 are what actually change
the sequence for the platforms using those two PHY drivers. Other
PHY drivers this series doesn't touch (phy-qcom-qmp-pcie-msm8996.c,
phy-qcom-uniphy-pcie-28lp.c, phy-qcom-pcie2.c) are either unaffected
(no phy_ops::init/phy_ops::reset) or only see their
phy_init()/phy_exit() call site moved without a sequence change.

Signed-off-by: Qiang Yu <qiang.yu@xxxxxxxxxxxxxxxx>
---
Qiang Yu (4):
      PCI: qcom: Move PHY init and add PHY reset call to align with HPG
      PCI: qcom-ep: Move PHY init and drive PHY reset to align with HPG
      phy: qcom-qmp-pcie-multiphy: Split phy_ops into init/exit/reset/power_on
      phy: qcom-qmp-pcie: Split phy_ops into init/exit/reset/power_on

 drivers/pci/controller/dwc/pcie-qcom-ep.c         |  26 +--
 drivers/pci/controller/dwc/pcie-qcom.c            | 165 ++++++++++++++-----
 drivers/phy/qualcomm/phy-qcom-qmp-pcie-multiphy.c |  94 ++++-------
 drivers/phy/qualcomm/phy-qcom-qmp-pcie.c          | 184 ++++++++++------------
 4 files changed, 257 insertions(+), 212 deletions(-)
---
base-commit: e6e35979777d646fe3c7c94dca7dd32fb25d45f4
change-id: 20260915-align_pcie_init_sequence_0916-571190abea56

Best regards,
--  
Qiang Yu <qiang.yu@xxxxxxxxxxxxxxxx>