[PATCH v3 0/4] PCI: mvebu: Slot support

Pali Rohár
2022-03-25T09:38:55Z

This patch series add slot support to pci-mvebu.c driver.

It is based on branch pci/mvebu of git repository:
https://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/pci.git

Changes in v3:
* Set 600 W when DT slot-power-limit-milliwatt > 600 W

Changes in v2:
* Dropped patch with PCI_EXP_SLTCAP_*_SHIFT macros as it is not needed anymore
* Dropped patch "ARM: dts: turris-omnia: Set PCIe slot-power-limit-milliwatt properties" which was applied
* Added support for PCIe 6.0 slot power limit encodings
* Round down slot power limit value
* Fix handling of slot power limit with scale x1.0 (0x00 value)
* Use FIELD_PREP instead of _SHIFT macros
* Changed commit message to Bjorn's suggestion
* Changed comments in the code to match PCIe spec
* Preserve user settings of PCI_EXP_SLTCTL_ASPL_DISABLE bit

Pali Rohár (4):
PCI: Add PCI_EXP_SLTCTL_ASPL_DISABLE macro
dt-bindings: Add 'slot-power-limit-milliwatt' PCIe port property
PCI: Add function for parsing 'slot-power-limit-milliwatt' DT property
PCI: mvebu: Add support for sending Set_Slot_Power_Limit message

Documentation/devicetree/bindings/pci/pci.txt | 6 ++
drivers/pci/controller/pci-mvebu.c | 96 ++++++++++++++++++-
drivers/pci/of.c | 64 +++++++++++++
drivers/pci/pci.h | 15 +++
include/uapi/linux/pci_regs.h | 1 +
5 files changed, 177 insertions(+), 5 deletions(-)

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2.20.1