linux-kernel - [PATCH 4/5] dt-bindings: PCI: brcmstb: New prop 'brcm,aspm-en-l0s'

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Message-Id: <20200430185522.4116-4-james.quinlan@broadcom.com>
Date:   Thu, 30 Apr 2020 14:55:21 -0400
From:   Jim Quinlan <james.quinlan@...adcom.com>
To:     james.quinlan@...adcom.com
Cc:     Jim Quinlan <james.quinlan@...adcom.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        bcm-kernel-feedback-list@...adcom.com (maintainer:BROADCOM BCM7XXX ARM
        ARCHITECTURE), Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-kernel@...ts.infradead.org (moderated list:BROADCOM BCM7XXX
        ARM ARCHITECTURE),
        linux-rpi-kernel@...ts.infradead.org (moderated list:BROADCOM
        BCM2711/BCM2835 ARM ARCHITECTURE),
        linux-pci@...r.kernel.org (open list:PCI SUBSYSTEM),
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 4/5] dt-bindings: PCI: brcmstb: New prop 'brcm,aspm-en-l0s'

From: Jim Quinlan <jquinlan@...adcom.com>

For various reasons, the L0s component of ASPM is intentionally
disabled.  Specifying the 'brcm,aspm-en-l0s' property enables it.

Signed-off-by: Jim Quinlan <jquinlan@...adcom.com>
---
 Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
index 77d3e81a437b..b3e43597b89c 100644
--- a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
@@ -56,6 +56,10 @@ properties:
     description: Indicates usage of spread-spectrum clocking.
     type: boolean
 
+  brcm,aspm-en-l0s:
+    description: Enables ASPM L0s savings; off by default.
+    type: boolean
+
 required:
   - reg
   - dma-ranges
-- 
2.17.1