linux-kernel - [PATCH] irqchip/atmel-aic5: add support for sam9x60 irqchip

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Date:   Mon, 9 Sep 2019 14:00:35 +0300
From:   Claudiu Beznea <claudiu.beznea@...rochip.com>
To:     <tglx@...utronix.de>, <jason@...edaemon.net>, <maz@...nel.org>,
        <robh+dt@...nel.org>, <mark.rutland@....com>,
        <nicolas.ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
        <ludovic.desroches@...rochip.com>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Sandeep Sheriker Mallikarjun 
        <sandeepsheriker.mallikarjun@...rochip.com>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>
Subject: [PATCH] irqchip/atmel-aic5: add support for sam9x60 irqchip

From: Sandeep Sheriker Mallikarjun <sandeepsheriker.mallikarjun@...rochip.com>

Add support for SAM9X60 irqchip.

Signed-off-by: Sandeep Sheriker Mallikarjun <sandeepsheriker.mallikarjun@...rochip.com>
[claudiu.beznea@...rochip.com: update aic5_irq_fixups[], update
 documentation]
Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
---
 .../devicetree/bindings/interrupt-controller/atmel,aic.txt     |  7 +++++--
 drivers/irqchip/irq-atmel-aic5.c                               | 10 ++++++++++
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/atmel,aic.txt b/Documentation/devicetree/bindings/interrupt-controller/atmel,aic.txt
index f4c5d34c4111..7079d44bf3ba 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/atmel,aic.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/atmel,aic.txt
@@ -1,8 +1,11 @@
 * Advanced Interrupt Controller (AIC)
 
 Required properties:
-- compatible: Should be "atmel,<chip>-aic"
-  <chip> can be "at91rm9200", "sama5d2", "sama5d3" or "sama5d4"
+- compatible: Should be:
+    - "atmel,<chip>-aic" where  <chip> can be "at91rm9200", "sama5d2",
+      "sama5d3" or "sama5d4"
+    - "microchip,<chip>-aic" where <chip> can be "sam9x60"
+
 - interrupt-controller: Identifies the node as an interrupt controller.
 - #interrupt-cells: The number of cells to define the interrupts. It should be 3.
   The first cell is the IRQ number (aka "Peripheral IDentifier" on datasheet).
diff --git a/drivers/irqchip/irq-atmel-aic5.c b/drivers/irqchip/irq-atmel-aic5.c
index 6acad2ea0fb3..29333497ba10 100644
--- a/drivers/irqchip/irq-atmel-aic5.c
+++ b/drivers/irqchip/irq-atmel-aic5.c
@@ -313,6 +313,7 @@ static void __init sama5d3_aic_irq_fixup(void)
 static const struct of_device_id aic5_irq_fixups[] __initconst = {
 	{ .compatible = "atmel,sama5d3", .data = sama5d3_aic_irq_fixup },
 	{ .compatible = "atmel,sama5d4", .data = sama5d3_aic_irq_fixup },
+	{ .compatible = "microchip,sam9x60", .data = sama5d3_aic_irq_fixup },
 	{ /* sentinel */ },
 };
 
@@ -390,3 +391,12 @@ static int __init sama5d4_aic5_of_init(struct device_node *node,
 	return aic5_of_init(node, parent, NR_SAMA5D4_IRQS);
 }
 IRQCHIP_DECLARE(sama5d4_aic5, "atmel,sama5d4-aic", sama5d4_aic5_of_init);
+
+#define NR_SAM9X60_IRQS		50
+
+static int __init sam9x60_aic5_of_init(struct device_node *node,
+				       struct device_node *parent)
+{
+	return aic5_of_init(node, parent, NR_SAM9X60_IRQS);
+}
+IRQCHIP_DECLARE(sam9x60_aic5, "microchip,sam9x60-aic", sam9x60_aic5_of_init);
-- 
2.7.4