linux-kernel - [PATCH v3 4/5] irqchip: ocelot: Add support for Serval platforms

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Date:   Mon, 16 Nov 2020 17:24:26 +0100
From:   Gregory CLEMENT <gregory.clement@...tlin.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <maz@...nel.org>, linux-kernel@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org
Cc:     Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Lars Povlsen <lars.povlsen@...rochip.com>,
        <Steen.Hegelund@...rochip.com>,
        Gregory CLEMENT <gregory.clement@...tlin.com>
Subject: [PATCH v3 4/5] irqchip: ocelot: Add support for Serval platforms

This patch extends irqchip driver for ocelot to be used with an other
vcoreiii base platform: Serval.

Based on a larger patch from Lars Povlsen <lars.povlsen@...rochip.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@...tlin.com>
---
 drivers/irqchip/irq-mscc-ocelot.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/irqchip/irq-mscc-ocelot.c b/drivers/irqchip/irq-mscc-ocelot.c
index 9964800c53c2..584af3b0a9e2 100644
--- a/drivers/irqchip/irq-mscc-ocelot.c
+++ b/drivers/irqchip/irq-mscc-ocelot.c
@@ -44,6 +44,18 @@ static const struct chip_props ocelot_props = {
 	.n_irq			= 24,
 };
 
+static const struct chip_props serval_props = {
+	.flags			= FLAGS_HAS_TRIGGER,
+	.reg_off_sticky		= 0xc,
+	.reg_off_ena		= 0x14,
+	.reg_off_ena_clr	= 0x18,
+	.reg_off_ena_set	= 0x1c,
+	.reg_off_ident		= 0x20,
+	.reg_off_trigger	= 0x4,
+	.reg_off_force		= 0x8,
+	.n_irq			= 24,
+};
+
 static const struct chip_props luton_props = {
 	.flags			= FLAGS_NEED_INIT_ENABLE |
 				  FLAGS_FORCE_LUTON_STYLE,
@@ -210,6 +222,14 @@ static int __init ocelot_irq_init(struct device_node *node,
 
 IRQCHIP_DECLARE(ocelot_icpu, "mscc,ocelot-icpu-intr", ocelot_irq_init);
 
+static int __init serval_irq_init(struct device_node *node,
+				  struct device_node *parent)
+{
+	return vcoreiii_irq_init(node, parent, &serval_props);
+}
+
+IRQCHIP_DECLARE(serval_icpu, "mscc,serval-icpu-intr", serval_irq_init);
+
 static int __init luton_irq_init(struct device_node *node,
 				 struct device_node *parent)
 {
-- 
2.29.2