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From:   =?UTF-8?q?Marek=20Beh=C3=BAn?= <kabel@kernel.org>
To:     Andrew Lunn <andrew@lunn.ch>,
        Gregory Clement <gregory.clement@bootlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc:     Rob Herring <robh+dt@kernel.org>,
        =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>,
        linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        =?UTF-8?q?Marek=20Beh=C3=BAn?= <kabel@kernel.org>
Subject: [PATCH v2 02/10] ARM: dts: dove: Add definitions for PCIe legacy INTx interrupts
Date:   Tue, 12 Jul 2022 18:41:00 +0200
Message-Id: <20220712164108.30262-3-kabel@kernel.org>
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References: <20220712164108.30262-1-kabel@kernel.org>
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From: Pali Rohár <pali@kernel.org>

Add definitions for PCIe legacy INTx interrupts.

This is required for example in a scenario where a driver requests only
one of the legacy interrupts (INTA). Without this, the driver would be
notified on events on all 4 (INTA, INTB, INTC, INTD), even if it
requested only one of them.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
---
 arch/arm/boot/dts/dove.dtsi | 28 ++++++++++++++++++++++++----
 1 file changed, 24 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
index 89e0bdaf3a85..96ba47c061a7 100644
--- a/arch/arm/boot/dts/dove.dtsi
+++ b/arch/arm/boot/dts/dove.dtsi
@@ -122,8 +122,18 @@ pcie0: pcie@1 {
 				bus-range = <0x00 0xff>;
 
 				#interrupt-cells = <1>;
-				interrupt-map-mask = <0 0 0 0>;
-				interrupt-map = <0 0 0 0 &intc 16>;
+				interrupt-names = "intx";
+				interrupts = <16>;
+				interrupt-map-mask = <0 0 0 7>;
+				interrupt-map = <0 0 0 1 &pcie0_intc 0>,
+						<0 0 0 2 &pcie0_intc 1>,
+						<0 0 0 3 &pcie0_intc 2>,
+						<0 0 0 4 &pcie0_intc 3>;
+
+				pcie0_intc: interrupt-controller {
+					interrupt-controller;
+					#interrupt-cells = <1>;
+				};
 			};
 
 			pcie1: pcie@2 {
@@ -141,8 +151,18 @@ pcie1: pcie@2 {
 				bus-range = <0x00 0xff>;
 
 				#interrupt-cells = <1>;
-				interrupt-map-mask = <0 0 0 0>;
-				interrupt-map = <0 0 0 0 &intc 18>;
+				interrupt-names = "intx";
+				interrupts = <18>;
+				interrupt-map-mask = <0 0 0 7>;
+				interrupt-map = <0 0 0 1 &pcie1_intc 0>,
+						<0 0 0 2 &pcie1_intc 1>,
+						<0 0 0 3 &pcie1_intc 2>,
+						<0 0 0 4 &pcie1_intc 3>;
+
+				pcie1_intc: interrupt-controller {
+					interrupt-controller;
+					#interrupt-cells = <1>;
+				};
 			};
 		};
 
-- 
2.35.1