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Message-Id: <20230411165919.23955-1-jim2101024@gmail.com>
Date: Tue, 11 Apr 2023 12:59:15 -0400
From: Jim Quinlan <jim2101024@...il.com>
To: linux-pci@...r.kernel.org,
Nicolas Saenz Julienne <nsaenz@...nel.org>,
Bjorn Helgaas <bhelgaas@...gle.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
Cyril Brulebois <kibi@...ian.org>,
Phil Elwell <phil@...pberrypi.com>,
bcm-kernel-feedback-list@...adcom.com, jim2101024@...il.com,
james.quinlan@...adcom.com
Cc: devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
DEVICE TREE BINDINGS),
linux-arm-kernel@...ts.infradead.org (moderated list:BROADCOM
BCM2711/BCM2835 ARM ARCHITECTURE),
linux-kernel@...r.kernel.org (open list),
linux-rpi-kernel@...ts.infradead.org (moderated list:BROADCOM
BCM2711/BCM2835 ARM ARCHITECTURE), Rob Herring <robh@...nel.org>
Subject: [PATCH v2 0/3] PCI: brcmstb: CLKREQ# accomodations of downstream device
v2 -- Changed binding property 'brcm,completion-timeout-msec' to
'brcm,completion-timeout-us'. (StefanW for standard suffix).
-- Warn when clamping timeout value, and include clamped
region in message. Also add min and max in YAML. (StefanW)
-- Qualify description of "brcm,completion-timeout-us" so that
it refers to PCIe transactions. (StefanW)
-- Remvove mention of Linux specifics in binding description. (StefanW)
-- s/clkreq#/CLKREQ#/g (Bjorn)
-- Refactor completion-timeout-us code to compare max and min to
value given by the property (as opposed to the computed value).
v1 -- The current driver assumes the downstream devices can
provide CLKREQ# for ASPM. These commits accomodate devices
w/ or w/o clkreq# and also handle L1SS-capable devices.
-- The Raspian Linux folks have already been using a PCIe RC
property "brcm,enable-l1ss". These commits use the same
property, in a backward-compatible manner, and the implementaion
adds more detail and also automatically identifies devices w/o
a clkreq# signal, i.e. most devices plugged into an RPi CM4
IO board.
Jim Quinlan (3):
PCI: brcmstb: CLKREQ# accomodations of downstream device
PCI: brcmstb: Set PCIe transaction completion timeout
blah blah
drivers/pci/controller/pcie-brcmstb.c | 99 ++++++++++++++++++++++++---
init/do_mounts.c | 16 ++++-
2 files changed, 102 insertions(+), 13 deletions(-)
base-commit: 76f598ba7d8e2bfb4855b5298caedd5af0c374a8
prerequisite-patch-id: f38de8681d8746126d60b3430eaf218d2dd169cd
prerequisite-patch-id: 23e13189f200358976abf5bf3600973a20cf386c
prerequisite-patch-id: edfbe6ea39ed6a4937e2cec3bb8ee0e60091546d
prerequisite-patch-id: c87dd155e8506a2a277726c47d85bf3fa83727d5
prerequisite-patch-id: 579841e1dc179517506a7a7c42e0e651b3bc3649
prerequisite-patch-id: b5b079998ea451821edffd7c52cd3d89d06046a1
prerequisite-patch-id: b51b3918e554e279b2ace1f68ed6b4176f8ccc24
prerequisite-patch-id: 333e5188fb27d0ed010f5359e83e539172a67690
prerequisite-patch-id: bb107ee7b4811a9719508ea667cad2466933dec0
prerequisite-patch-id: 1258db336e778eb57d5cbea88834cd25aa1346ba
--
2.17.1
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