linux-kernel - [PATCH 4.9 42/42] irqchip: nvic: Fix offset for Interrupt Priority Offsets

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Message-Id: <20211213092927.923222339@linuxfoundation.org>
Date:   Mon, 13 Dec 2021 10:30:24 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Vladimir Murzin <vladimir.murzin@....com>,
        Marc Zyngier <maz@...nel.org>
Subject: [PATCH 4.9 42/42] irqchip: nvic: Fix offset for Interrupt Priority Offsets

From: Vladimir Murzin <vladimir.murzin@....com>

commit c5e0cbe2858d278a27d5b3fe31890aea5be064c4 upstream.

According to ARM(v7M) ARM Interrupt Priority Offsets located at
0xE000E400-0xE000E5EC, while 0xE000E300-0xE000E33C covers read-only
Interrupt Active Bit Registers

Fixes: 292ec080491d ("irqchip: Add support for ARMv7-M NVIC")
Signed-off-by: Vladimir Murzin <vladimir.murzin@....com>
Signed-off-by: Marc Zyngier <maz@...nel.org>
Link: https://lore.kernel.org/r/20211201110259.84857-1-vladimir.murzin@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/irqchip/irq-nvic.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/irqchip/irq-nvic.c
+++ b/drivers/irqchip/irq-nvic.c
@@ -29,7 +29,7 @@
 
 #define NVIC_ISER		0x000
 #define NVIC_ICER		0x080
-#define NVIC_IPR		0x300
+#define NVIC_IPR		0x400
 
 #define NVIC_MAX_BANKS		16
 /*