linux-kernel - [PATCH 1/2] dt-bindings: reset: Document BCM7216 RESCAL reset controller

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Date:   Tue, 10 Dec 2019 11:59:02 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Jim Quinlan <jim2101024@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Rob Herring <robh@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        bcm-kernel-feedback-list@...adcom.com (maintainer:BROADCOM BCM7XXX ARM
        ARCHITECTURE),
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS),
        linux-arm-kernel@...ts.infradead.org (moderated list:BROADCOM BCM7XXX
        ARM ARCHITECTURE)
Subject: [PATCH 1/2] dt-bindings: reset: Document BCM7216 RESCAL reset controller

From: Jim Quinlan <jim2101024@...il.com>

BCM7216 has a special purpose RESCAL reset controller for its SATA and
PCIe0/1 instances. This is a simple reset controller with #reset-cells
set to 0.

Signed-off-by: Jim Quinlan <jim2101024@...il.com>
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 .../reset/brcm,bcm7216-pcie-sata-rescal.txt   | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reset/brcm,bcm7216-pcie-sata-rescal.txt

diff --git a/Documentation/devicetree/bindings/reset/brcm,bcm7216-pcie-sata-rescal.txt b/Documentation/devicetree/bindings/reset/brcm,bcm7216-pcie-sata-rescal.txt
new file mode 100644
index 000000000000..ceaf7ee58726
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/brcm,bcm7216-pcie-sata-rescal.txt
@@ -0,0 +1,26 @@
+BCM7216 RESCAL reset controller
+===============================
+
+This document describes the BCM7216 RESCAL reset controller which is
+responsible for controlling the reset of the SATA and PCIe0/1 instances on
+BCM7216.
+
+Please also refer to reset.txt in this directory for common reset controller
+binding usage.
+
+Required properties:
+- compatible: should be brcm,bcm7216-pcie-sata-rescal
+- reg: register base and length
+- #reset-cells: must be set to 0
+
+Example:
+
+rescal: reset {
+	compatible = "brcm,bcm7216-pcie-sata-rescal";
+	reg = <0x8b2c800>;
+	#reset-cells = <0>;
+};
+
+&pcie0 {
+	resets = <&rescal>;
+};
-- 
2.17.1