linux-kernel - [PATCH] ARM: dts: BCM5301X: Fix I2C controller interrupt

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Message-Id: <20211027193730.3941945-1-f.fainelli@gmail.com>
Date:   Wed, 27 Oct 2021 12:37:29 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     chunkeey@...il.com, mnhagan88@...il.com,
        Florian Fainelli <f.fainelli@...il.com>,
        Hauke Mehrtens <hauke@...ke-m.de>,
        Rafał Miłecki <zajec5@...il.com>,
        bcm-kernel-feedback-list@...adcom.com (maintainer:BROADCOM BCM5301X ARM
        ARCHITECTURE), Rob Herring <robh+dt@...nel.org>,
        Jon Mason <jonmason@...adcom.com>,
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] ARM: dts: BCM5301X: Fix I2C controller interrupt

The I2C interrupt controller line is off by 32 because the datasheet
describes interrupt inputs into the GIC which are for Shared Peripheral
Interrupts and are starting at offset 32. The ARM GIC binding expects
the SPI interrupts to be numbered from 0 relative to the SPI base.

Fixes: bb097e3e0045 ("ARM: dts: BCM5301X: Add I2C support to the DT")
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 arch/arm/boot/dts/bcm5301x.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/bcm5301x.dtsi b/arch/arm/boot/dts/bcm5301x.dtsi
index f92089290ccd..ec5de636796e 100644
--- a/arch/arm/boot/dts/bcm5301x.dtsi
+++ b/arch/arm/boot/dts/bcm5301x.dtsi
@@ -408,7 +408,7 @@ uart2: serial@...08000 {
 	i2c0: i2c@...09000 {
 		compatible = "brcm,iproc-i2c";
 		reg = <0x18009000 0x50>;
-		interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
+		interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
 		#address-cells = <1>;
 		#size-cells = <0>;
 		clock-frequency = <100000>;
-- 
2.25.1