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    SubjectRe: [rfc, PATCH v1 0/7] PCI: introduce p2sb helper
    Am Mon, 8 Mar 2021 14:20:13 +0200
    schrieb Andy Shevchenko <andriy.shevchenko@linux.intel.com>:

    > There are a few users and even at least one more is coming
    > that would like to utilize p2sb mechanisms like hide/unhide
    > a device from PCI configuration space.

    Tried this for my usecase and can confirm it to work as expected.

    Tested-by: Henning Schild <henning.schild@siemens.com>

    Henning

    > Here is the series to deduplicate existing users and provide
    > a generic way for new comers.
    >
    > It also includes a patch to enable GPIO controllers on Apollo Lake
    > when it's used with ABL bootloader w/o ACPI support.
    >
    > Please, comment on the approach and individual patches.
    >
    > (Since it's cross subsystem, the PCI seems like a main one and
    > I think it makes sense to route it thru it with immutable tag
    > or branch provided for the others).
    >
    > Andy Shevchenko (5):
    > PCI: Introduce pci_bus_*() printing macros when device is not
    > available
    > PCI: Convert __pci_read_base() to __pci_bus_read_base()
    > mfd: lpc_ich: Factor out lpc_ich_enable_spi_write()
    > mfd: lpc_ich: Switch to generic pci_p2sb_bar()
    > i2c: i801: convert to use common P2SB accessor
    >
    > Jonathan Yong (1):
    > PCI: New Primary to Sideband (P2SB) bridge support library
    >
    > Tan Jui Nee (1):
    > mfd: lpc_ich: Add support for pinctrl in non-ACPI system
    >
    > drivers/i2c/busses/Kconfig | 1 +
    > drivers/i2c/busses/i2c-i801.c | 40 +++-------
    > drivers/mfd/Kconfig | 1 +
    > drivers/mfd/lpc_ich.c | 135
    > +++++++++++++++++++++++++++++----- drivers/pci/Kconfig |
    > 8 ++ drivers/pci/Makefile | 1 +
    > drivers/pci/pci-p2sb.c | 89 ++++++++++++++++++++++
    > drivers/pci/pci.h | 13 +++-
    > drivers/pci/probe.c | 81 ++++++++++----------
    > include/linux/pci-p2sb.h | 28 +++++++
    > include/linux/pci.h | 9 +++
    > 11 files changed, 313 insertions(+), 93 deletions(-)
    > create mode 100644 drivers/pci/pci-p2sb.c
    > create mode 100644 include/linux/pci-p2sb.h
    >

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