From mboxrd@z Thu Jan  1 00:00:00 1970
From: Miquel Raynal <miquel.raynal@bootlin.com>
Subject: [PATCH v4 03/10] dt-bindings: ata: Update ahci bindings with possible
 per-port interrupts
Date: Tue, 21 May 2019 16:30:16 +0200
Message-ID: <20190521143023.31810-4-miquel.raynal@bootlin.com>
References: <20190521143023.31810-1-miquel.raynal@bootlin.com>
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To: Gregory Clement <gregory.clement@bootlin.com>, Jason Cooper <jason@lakedaemon.net>, Andrew Lunn <andrew@lunn.ch>, Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>, Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Jens Axboe <axboe@kernel.dk>, Hans de Goede <hdegoede@redhat.com>, Thomas Gleixner <tglx@linutronix.de>, Marc Zyngier <marc.zyngier@arm.com>
Cc: devicetree@vger.kernel.org, Baruch Siach <baruch@tkos.co.il>, Antoine Tenart <antoine.tenart@bootlin.com>, Maxime Chevallier <maxime.chevallier@bootlin.com>, Nadav Haklai <nadavh@marvell.com>, linux-ide@vger.kernel.org, Thomas Petazzoni <thomas.petazzoni@bootlin.com>, Miquel Raynal <miquel.raynal@bootlin.com>, linux-arm-kernel@lists.infradead.org
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Update bindings to reflect the fact that a SATA IP can either have:
- only one interrupt: in this case an 'interrupts' property is
  declared at the root of the node;
or
- each SATA port can have their own interrupt: in this case there is
  one 'interrupts' property per port/sub-node and none at the root.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 Documentation/devicetree/bindings/ata/ahci-platform.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt
index e30fd106df4f..80261e2845b0 100644
--- a/Documentation/devicetree/bindings/ata/ahci-platform.txt
+++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt
@@ -53,6 +53,12 @@ And at least one of the following properties:
 - phys		    : reference to the SATA PHY node
 - target-supply     : regulator for SATA target power
 
+Sub-nodes optional properties:
+- interrupts        : <interrupt mapping for SATA ports IRQ>, please
+                      note that either the root SATA node has the
+                      interrupts property, or there is one per SATA
+                      port, but not both at the same time.
+
 Examples:
         sata@ffe08000 {
 		compatible = "snps,spear-ahci";
-- 
2.19.1