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Message-ID: <20230118125936.3456716-1-a-verma1@ti.com>
Date: Wed, 18 Jan 2023 18:29:31 +0530
From: Achal Verma <a-verma1@...com>
To: <mranostay@...com>, <rogerq@...nel.org>, <lpieralisi@...nel.org>,
<robh@...nel.org>, <kw@...ux.com>, <bhelgaas@...gle.com>,
<krzysztof.kozlowski@...aro.org>, <vigneshr@...com>,
<tjoseph@...ence.com>, <sergio.paracuellos@...il.com>,
<pthombar@...ence.com>, <linux-pci@...r.kernel.org>
CC: <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-omap@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v8 0/5] PCI: add 4x lane support for pci-j721e controllers
From: Matt Ranostay <mranostay@...com>
Adding of additional support to Cadence PCIe controller (i.e. pci-j721e.c)
for up to 4x lanes, and reworking of driver to define maximum lanes per
board configuration.
Changes from v1:
* Reworked 'PCI: j721e: Add PCIe 4x lane selection support' to not cause
regressions on 1-2x lane platforms
Changes from v2:
* Correct dev_warn format string from %d to %u since lane count is a
unsigned integer
* Update CC list
Changes from v3:
* Use the max_lanes setting per chip for the mask size required since
bootloader could have set num_lanes to a higher value that the
device tree which would leave in an undefined state
* Reorder patches do the previous change to not break bisect
* Remove line breaking for dev_warn to allow better grepping and since
no strict 80 columns anymore
Changes from v4:
* Correct invalid settings for j7200 PCIe RC + EP
* Add j784s4 configuration for selection of 4x lanes
Changes from v5:
* Dropped 'PCI: j721e: Add warnings on num-lanes misconfiguration' patch
from series
* Reworded 'PCI: j721e: Add per platform maximum lane settings' commit
message
* Added yaml documentation and schema checks for ti,j721e-pci-* lane
checking
Changes from v6:
* Fix wordwrapping in commit messages from ~65 columns to correct 75
columns
* Re-ran get_maintainers.pl to add missing maintainers in CC
Changes from v7:
* Addressed review comments in ti,j721e-pci-ep.yaml and
ti,j721e-pci-host.yaml from v6
* Added warn message if num-lanes property value is invalid.
* Addressed build issue reported in
https://lore.kernel.org/all/202211260346.4JvNnDdc-lkp@intel.com/
Matt Ranostay (5):
dt-bindings: PCI: ti,j721e-pci-*: add checks for num-lanes
PCI: j721e: Add per platform maximum lane settings
PCI: j721e: Add PCIe 4x lane selection support
dt-bindings: PCI: ti,j721e-pci-*: add j784s4-pci-* compatible strings
PCI: j721e: add j784s4 PCIe configuration
.../bindings/pci/ti,j721e-pci-ep.yaml | 40 ++++++++++++++--
.../bindings/pci/ti,j721e-pci-host.yaml | 40 ++++++++++++++--
drivers/pci/controller/cadence/pci-j721e.c | 46 +++++++++++++++++--
3 files changed, 115 insertions(+), 11 deletions(-)
--
2.25.1
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